RC30 What does this mean? [Archive]

T.W.R

16th April 2018, 17:31

What about the Japanese looking stuff? It's on other parts too, but without the Hallam bit.

probably a tech thats been inside the engine before...like a watch maker that initials the inside of watch casings :yes:

PM brian d marge (http://www.kiwibiker.co.nz/forums/member.php/2805-Brian-d-marge) He'll know exactly how to decipher the hieroglyphics

husaberg

16th April 2018, 18:30

What about the Japanese looking stuff? It's on other parts too, but without the Hallam bit. Would anyone know where I could source a manual for one of these? Or just torque settings & clearances.
As far as I remember the urban myth was the RC30 were assembled by one person. it could be his logo or it could just be work that was doe on it I assume its a JAP import or is it from Aussie
I can ask for someone to try and translate it for you.

The fastest RC30 were the last raced in AUusie by the Winfeild team of Corser and Gobert they eventually had Factory engines shipped out for the last few races and they were faster than the Ducatis
as well as later development forks and Frame bracing

here is the manual plus the hrc parts kit manuals and kit books anyway had a few of the settings

http://www.rc30.info/manuals/rc30specs.pdf
https://www.tygaeurope.com/index.php/technical-support/pdf-part-books/hrc/vfr750r-rc30.html
http://www.rc30.info/HRC_KIT_MANUALS.html

sidecar bob

16th April 2018, 18:34

As far as I remember the urban myth was the RC30 were assembled by one person. it could be his logo or it could just be work that was doe on it I assume its a JAP import or is it from Aussie
I can ask for someone to try and translate it for you.

here is the manual plus the hrc parts kit manuals and kit books anyway had a few of the settings

http://www.rc30.info/manuals/rc30specs.pdf
https://www.tygaeurope.com/index.php/technical-support/pdf-part-books/hrc/vfr750r-rc30.html
http://www.rc30.info/HRC_KIT_MANUALS.html

I knew it would be you that found it, to the point that I nearly pm'd you instead of posting up a thread.
Legend! Thank you.
The history of the bike is very murky & looks like it was slipped together a decade or so ago as an exhibit.
Apparently Brian d merge is the man. I've pm'd re translation thanks.

husaberg

16th April 2018, 18:42

Apparently Brian d merge is the man. I've pm'd re translation thanks.

Haha so have I LOL
I will see if I can find out who crewed the windfeild team.
here you go the whole story plus all the names you need.
Not in the story but Corser privately said the factory engine used was actually considerably faster.
save the file in your computer as they tend to be taken offline
http://www.roskildering.net/TroyCorser.pdf

T.W.R

16th April 2018, 19:07

Apparently Brian d merge is the man. I've pm'd re translation thanks.

See how you go translating Kanji or Hiragana mmm

Grumph

16th April 2018, 19:34

husaberg

16th April 2018, 19:35

What I think was one of the Winfield bikes is in NZ and gets used regularly. I know the owner slightly Terry Reid.
Denis Charlett has ridden it a few times and will have the owner's contact details. He's worth talking to as he's able to source some of the stuff you need to rebuild it.
I've been through one a while back. Look hard at the crank, radius the oil holes and get it linished. Usual going to thinnest shells works well...
You can't change the cam timing - which is 105/105 lobe centers anyway - usual Honda...
Check the bores for parallel...tapered is quite common.
New rod bolts essential, lubed as Ti galls easily.

Set up properly and with an export black box, loud tailpipe and some light port work, 118 - 120hp at the wheel is pretty easy. If you find hot cams, you need higher com pistons to match.

Rods shouldn't be resized either I found that one today something to do with the coatings.
Another person to tlk to would be croz
He used to test the Moriwoki zero or what ever the Jap spec F1 version was called he would be able to put you in touch with the "Builder san" those jap spec bikes were not run under superbike rules so they had a raft of spec changes

here is one
VFR750R Zero-VX7 RC30
https://www.facebook.com/GT.Performance.Engineering/photos/a.1357011757731259.1073741882.502467319852378/1500154730083627/?type=3&theater

HenryDorsetCase

16th April 2018, 21:34

I'm just sitting here with a horn on thinking about vintage RC30 porn.

some people watch Twilight and 50 shades of gray so I am quitenormal really

Grumph

16th April 2018, 21:52

I'm just sitting here with a horn on thinking about vintage RC30 porn.

some people watch Twilight and 50 shades of gray so I am quitenormal really

If you'd ever had to assemble one you'd never be like that....Ever.

As it does nowadays, memory eventually kicked in, the biggest problems will be the ignition box - and the carbs.
talking to Terry, there are several ignition boxes all with different curves. What you've got makes a hell of a difference to these engines.
Which leads to carburation...Even with the stock export ignition, changing the tailpipe led to playing with whatever needles we could find.
Stock, there are home market and export version needles. I believe there are 2 or 3 needle variations in the racekit. We finished up using kit needles sourced from a guy in Dunedin who owned an RC30 at the time which was an ex race bike and came with spares.
Given that you're building it to a cutoff date - and not necessarily the WSB regs of the time, I'd use a set of FCR's and shortcut the whole setup problem.
Alternative jets and needles would certainly be easier to source...

sidecar bob

17th April 2018, 08:10

If you'd ever had to assemble one you'd never be like that....Ever.

As it does nowadays, memory eventually kicked in, the biggest problems will be the ignition box - and the carbs.
talking to Terry, there are several ignition boxes all with different curves. What you've got makes a hell of a difference to these engines.
Which leads to carburation...Even with the stock export ignition, changing the tailpipe led to playing with whatever needles we could find.
Stock, there are home market and export version needles. I believe there are 2 or 3 needle variations in the racekit. We finished up using kit needles sourced from a guy in Dunedin who owned an RC30 at the time which was an ex race bike and came with spares.
Given that you're building it to a cutoff date - and not necessarily the WSB regs of the time, I'd use a set of FCR's and shortcut the whole setup problem.
Alternative jets and needles would certainly be easier to source...
I worry about these things & you do understand that if you hadn't already made your position very clear, that this engine would be halfway to you by now.
This bike has been a warhorse for some years, so I'm hoping a lot of this stuff is somewhere in the window as a starting point anyway.
I'll get it reassembled into a fashion where it can be ridden without hurting someone & then the testing shall begin.
This thread has already thrown up far more questions than answers, which isint a bad thing.
Thanks for the input so far, I have plenty more to act on now.
Edit. I like these fcr's & understand them, which is important when you are the guy that has to make changes trackside.
http://force-v4.co.uk/tuning/rc30-tuning/tuning-rc30-carbs.php

HenryDorsetCase

17th April 2018, 08:42

I've got (or had - it might be in a box somewhere) an NC30 airbox where someone has done similar mods..... as far as I can tell my motor was stock so not sure what use it would be to anyone. Looks cool as shit though!

husaberg

17th April 2018, 17:05

RC30 vs VFR differences
http://rc30.yolasite.com/engine.php

T.W.R

17th April 2018, 17:39

Chronicles of 88....001-005

sidecar bob

17th April 2018, 19:13

Well this seems like a good place to start a build:2thumbsup

husaberg

17th April 2018, 21:22

Well this seems like a good place to start a build:2thumbsup
Is there anything that spells out Japanese build philosophy more than the welding on that frame.
Welds you can see good, welds you normally cant see not so much....
At least with the RC30 you can still get steering head bearings unlike the NF4 RS125

sidecar bob

17th April 2018, 21:46

Is there anything that spells out Japanese build philosophy more than the welding on that frame.
Welds you can see good, welds you normally cant see not so much....
At least with the RC30 you can still get steering head bearings unlike the NF4 RS125

Yeah, the remark was made today that they must have got the apprentice to weld the insides of the frames.
We ordered steering head bearings today. Upgrading from ball bearings to taper roller.
I have acquired the support of Brian Brown of TT motorcycles in Melbourne for information & technical help http://www.ttmotorcycles.com.au
We discovered today that their RC30 has the consecutive chassis number to this one.

husaberg

17th April 2018, 22:00

Yeah, the remark was made today that they must have got the apprentice to weld the insides of the frames.
We ordered steering head bearings today. Upgrading from ball bearings to taper roller.
I have acquired the support of Brian Brown of TT motorcycles in Melbourne for information & technical help http://www.ttmotorcycles.com.au
We discovered today that their RC30 has the consecutive chassis number to this one.
I was trying to remember what the Hallam Bros logo was last night, I think it was a cartoon boy with spikey hair making a fist showing a muscle or something. looked kinda of 80's Japanese cartoon.
I do recall they put together a CR500 that won one of the last 500MX titles in Aussie.
Sir Stephen AKA Brian Demargerine gave a translation of something similar to
"brown eye" !
as its" button eye hallam boyz .

Typically from what I have seen the Japanese run of the mill bikes are tig welded on the outside and mig welded on the inside with the alloy frames.
I have two RS frames at home and all the welding is rather nice both inside and out.
I would have thought that the RC30 kit prep guides of the era would have had drawings or templates for frame bracing.

Grumph

17th April 2018, 22:46

Frame bracing - the WSB regs in the early years were a bit ambiguous on what you could or couldn't do. Minimum weight - based on homologation weight less a %. Can't remember what it was - maybe 15%. No definite prohibitions except changing main frame layout.
The previous TTF1 regs had been very open on frames and the WSB setup was supposed to be to encourage closer to stock bikes. Initially that's what they were - visibly anyway. Then people like Harris started selling stronger swingarms etc etc....
To get the RC30 to turn, several tried shorter swingarms.

Engines - you couldn't change the relationship/distance between the cases and the head(s) and the rods had to stay the same material as homologated.
So the RC kit rods are 2mm longer with shorter 2 ring pistons to match. Still Ti rods though. Valves had to stay same material too.

I used to have a set of the regs here - I did two engines for the rounds here and needed to be sure what I did was legal.

sidecar bob

2nd May 2019, 21:05

Got this far with the rebuild so far.
Around ten hours to clean, lubricate, loctite & assemble rear hub, & brake assembly, linkage, steering head & swingarm pivot with new parts as required.
So different to work with stuff that was primarily designed to be raced.

husaberg

2nd May 2019, 21:12

got this far with the rebuild so far.
So different to work with stuff that was primarily designed to be raced.

That last RC30 that Gobert and mcarthy i think raced had a shed load of bracing i think?

or maybe not
http://www.roskildering.net/TroyCorser.pdf

How did you get on tracing the History?

Grumph

3rd May 2019, 05:14

How did you get on tracing the History?

I know the last owner - who did nothing with it as he couldn't get it running. Just as well too.
The owner before him needs a sound flogging. I won't go into details but it'll have to be rebuilt into different cases as a minimum.

Drew

3rd May 2019, 12:01

We ordered steering head bearings today. Upgrading from ball bearings to taper roller.

Who told you that they were an upgrade? MotoGP bikes run balls.

HenryDorsetCase

3rd May 2019, 15:08

I know the last owner - who did nothing with it as he couldn't get it running. Just as well too.
The owner before him needs a sound flogging. I won't go into details but it'll have to be rebuilt into different cases as a minimum.

blimey - are they available? Or is there someone CNC machining replicas somewhere from billet?

Grumph

3rd May 2019, 16:22

blimey - are they available? Or is there someone CNC machining replicas somewhere from billet?

My understanding is that the RC30 internals and heads drop onto the same period VFR750 cases - with some work.
The VFR cases and barrels have thicker liners and can be taken out to around 840cc. I have of course suggested this, LOL.
Honda themselves in period took this VFR based engine out to 920cc for F1. But only built three of them apparently. No- one knows just how they stabilised the top of the free-standing liners.
Without this done, it's a head gasket nightmare.
The VFR cases are actually quite common. This engine is a first year RC30 so isn't even marked as an RC30. Most of the ones raced in period came as Jap home market ones which were then kitted. Official exports started in the 2nd year of production.

husaberg

3rd May 2019, 16:30

My understanding is that the RC30 internals and heads drop onto the same period VFR750 cases - with some work.
The VFR cases and barrels have thicker liners and can be taken out to around 840cc. I have of course suggested this, LOL.
Honda themselves in period took this VFR based engine out to 920cc for F1. But only built three of them apparently. No- one knows just how they stabilised the top of the free-standing liners.
Without this done, it's a head gasket nightmare.
The VFR cases are actually quite common. This engine is a first year RC30 so isn't even marked as an RC30. Most of the ones raced in period came as Jap home market ones which were then kitted. Official exports started in the 2nd year of production.

I posted all the differences somewhere they are mainly oiling system i think. which is ironic.

malcy25

3rd May 2019, 16:50

My understanding is that the RC30 internals and heads drop onto the same period VFR750 cases - with some work.
The VFR cases and barrels have thicker liners and can be taken out to around 840cc. I have of course suggested this, LOL.
Honda themselves in period took this VFR based engine out to 920cc for F1. But only built three of them apparently. No- one knows just how they stabilised the top of the free-standing liners.
Without this done, it's a head gasket nightmare.
The VFR cases are actually quite common. This engine is a first year RC30 so isn't even marked as an RC30. Most of the ones raced in period came as Jap home market ones which were then kitted. Official exports started in the 2nd year of production.

I have seen a number of Jap domestic market supplied bikes (generally race / Homologation style ) where they have no engine numbers. My TZ250U and OW01 are like that. I read somewhere years about this and then checked my bikes. Both of which were supplied new in Japan. Strange.

husaberg

3rd May 2019, 17:01

I have seen a number of Jap domestic market supplied bikes (generally race / Homologation style ) where they have no engine numbers. My TZ250U and OW01 are like that. I read somewhere years about this and then checked my bikes. Both of which were supplied new in Japan. Strange.

replacement cases generally are not numbered so that you can number them the same as per original?

sidecar bob

3rd May 2019, 18:18

Who told you that they were an upgrade? MotoGP bikes run balls.

Well that's a downgrade then I guess.
I'd challenge any rider to pick the difference however.

Drew

3rd May 2019, 18:45

Well that's a downgrade then I guess.
I'd challenge any rider to pick the difference however.
I doubt anyone outside of GP or WSBK has tuned a bike anywhere near well enough for it either.

Grumph

3rd May 2019, 19:28

replacement cases generally are not numbered so that you can number them the same as per original?

Harley were known to supply un-numbered cases for the KR and XR as the AMA insisted on title papers for race bikes. Never personally seen jap replacement cases un-numbered...

The steering head bearing thing is not simple. My understanding is that the top shit stuff uses balls, yes, but caged not loose. Never found a source for these in NZ. repeat, in NZ. Given that real race stuff is liable to have forks/offset yokes/stanchions changed at the track, you really don't want to use loose balls.

Properly aligned taper rollers - in a stiff steering head piece - will certainly carry a higher lateral load. I'd use them for preference in a short sidecar over balls.

A period comment is relevant here - practise for the WSB at Manfield, I went to see Hepburn to see how his engine was peforming. He was saying that he could not believe how physical the European riders were at the end of the back straight. They went in very deep and faster than he was, then gave a hard pull on the bars to get it turning. Very high steering loads going in at that point.

husaberg

3rd May 2019, 20:50

Harley were known to supply un-numbered cases for the KR and XR as the AMA insisted on title papers for race bikes. Never personally seen jap replacement cases un-numbered...

The steering head bearing thing is not simple. My understanding is that the top shit stuff uses balls, yes, but caged not loose. Never found a source for these in NZ. repeat, in NZ. Given that real race stuff is liable to have forks/offset yokes/stanchions changed at the track, you really don't want to use loose balls.

Properly aligned taper rollers - in a stiff steering head piece - will certainly carry a higher lateral load. I'd use them for preference in a short sidecar over balls.

A period comment is relevant here - practise for the WSB at Manfield, I went to see Hepburn to see how his engine was peforming. He was saying that he could not believe how physical the European riders were at the end of the back straight. They went in very deep and faster than he was, then gave a hard pull on the bars to get it turning. Very high steering loads going in at that point.

I think the idea of the Race bikes using balls is simply the steering head can be smaller and the bearing is lighter. any advantage is worth it, Taper rollers will of course last longer, Those Cadged balls things Suzuki run must be a far bit cheaper to make.not much diferent to push bike wheel bearings.
Honda NF4 ones were taper rollers and are made of unobtainium. unless you want to machine to size from another. Bloody Honda and bearings and seals.

I had a search around and yeah the Hondas def replacement cases were un numbered on the Cb750's anyway.
http://forums.sohc4.net/index.php?topic=49903.0

I think the RC30 and VFR stuff differences was in something i sent to you wasnt it?
http://rc30.yolasite.com/engine.php

F5 Dave

3rd May 2019, 21:23

I bought nf4 ball caged bearings from tss via eurobike , no wait um, k4 , k2, um. . . Ok some accessories distributor. The difference is where the bearings bear against supposedly and , ahh, I got told some stuff in the 90s but buggered if I remember

3rd edit. R2.

Kickaha

4th May 2019, 15:53

Never personally seen jap replacement cases un-numbered...

I have a set of new Yamaha XJ550 cases at home with no numbers on them

Drew

4th May 2019, 20:14

I have a set of new Yamaha XJ550 cases at home with no numbers on them

What? Why?

You're a weird guy bro.

F5 Dave

4th May 2019, 20:45

Well yeah . He's not kinda normal.
Good guy though make no mistake.

Grumph

4th May 2019, 20:45

What? Why?

You're a weird guy bro.

Why not ?

Pot meet kettle....

Kickaha

5th May 2019, 09:50

What? Why?

You're a weird guy bro.

$50 off trademe for a brand new set bought off a guy who used to proddy race one, I've got enough at home to build three of those bikes now, fuck knows what I'll do with them all

sidecar bob

5th May 2019, 10:06

$50 off trademe for a brand new set bought off a guy who used to proddy race one, I've got enough at home to build three of those bikes now, fuck knows what I'll do with them all

What about a bobber, a chopper & a scrambler?

jellywrestler

5th May 2019, 11:59

What about a bobber, a chopper & a scrambler?

you need slapping real quick....

HenryDorsetCase

5th May 2019, 14:48

What about a bobber, a chopper & a scrambler?

I have 90% of a roll of exhaust wrap I will donate!

Grumph

5th May 2019, 15:48

I have 90% of a roll of exhaust wrap I will donate!

Use it to tie your legal briefs up instead of the usual red tape...

Kickaha

5th May 2019, 18:51

What about a bobber, a chopper & a scrambler?

I was thinking more Café racer, Scrambler and Pre 82

you need slapping real quick....

One of them is your brothers old bike

I have 90% of a roll of exhaust wrap I will donate!

Any brown material for a seat ?

husaberg

5th May 2019, 19:15

I was thinking more Café racer, Scrambler and Pre 82
?

Be a good way of getting rid of your GN tanks

jellywrestler

5th May 2019, 21:21

82

One of them is your brothers old bike

which i brought originally, the lady who sold it on behalf of her out of town daughter even tracked me down through my mum when she'd found a pack and some new spark plugs for it. inside wasa receopit for work done about the same price as i paid for it. i remember her saying there's a problem with the starter motor, i said what was it, 'it's the thing they use to start motorbikes now. problem was the button on the switchblock was broken, no other damage, got just the button from a smashed unit locally and the bike went like a dream. brought a mint fairing at a swapmeet less blade for $2, on the way out to the car a guy was missing one for his so sold it to him for a wee bit more, he offered me a price not the other way around

HenryDorsetCase

5th May 2019, 22:08

Any brown material for a seat ?

I could cut up some of my undies.

Grumph

22nd August 2019, 12:58

Patience is a much sought after virtue...

sidecar bob

22nd August 2019, 13:50

So is time;)
Youre a proper good bloke, especially for a Labour voter.
The head bolt sample will have to wait today. Its pissing down..
Ive been busy too.
A few refurbished parts ready to bolt on.

husaberg

22nd August 2019, 22:37

So is time;)
Youre a proper good bloke, especially for a Labour voter.
The head bolt sample will have to wait today. Its pissing down..
Ive been busy too.
A few refurbished parts ready to bolt on.

Crowd in UK makes the head bots well sells the ones that ARP custom make them
342782342783342784

sidecar bob

23rd August 2019, 03:50

Crowd in UK makes the head bots well sells the ones that ARP custom make them]

Somebody else makes an upgraded one that can be bought locally for a fraction of the price.;)

husaberg

23rd August 2019, 17:24

Somebody else makes an upgraded one that can be bought locally for a fraction of the price.;)

But will they be as Bling bling.
Whats the go with why they are so needed on the RC30 i know they have the two piece set up with the shims for the gears by why do RC30s need new head bolts all the time?

sidecar bob

23rd August 2019, 17:33

But will they be as Bling bling.
Whats the go with why they are so needed on the RC30 i know they have the two piece set up with the shims for the gears by why do RC30s need new head bolts all the time?
Not at all, but there will only be two people that are going to see them, and they're designed for reliability on a popular road car.
Torque to yield I'm guessing.

Grumph

23rd August 2019, 19:58

But will they be as Bling bling.
Whats the go with why they are so needed on the RC30 i know they have the two piece set up with the shims for the gears by why do RC30s need new head bolts all the time?

They don't. But they're all getting to the point at which you should replace them - and they're NLA. So there's a demand - but look at the price of those ones in the UK. Then realise you need 16 of them...They're an orphan 9mm socket head - and Honda didn't anticipate a demand 30 years on.

I've already been told that some of the Aussies are very interested in what we find for alternatives. The parts that have been coming out of japan are drying up. The poor condition of this engine has simply ensured we had to look at alternatives with some urgency.

sidecar bob

24th August 2019, 09:36

They don't. But they're all getting to the point at which you should replace them - and they're NLA. So there's a demand - but look at the price of those ones in the UK. Then realise you need 16 of them...They're an orphan 9mm socket head - and Honda didn't anticipate a demand 30 years on.

I've already been told that some of the Aussies are very interested in what we find for alternatives. The parts that have been coming out of japan are drying up. The poor condition of this engine has simply ensured we had to look at alternatives with some urgency.

Those cheating, sore losing, un sportsmanlike Aussies will be the last to find out what the bolts are after the dramas of the last couple or three Island Classics we have attended.
I'll stand my ground on behalf of the UK team boss Roger Winfield. What they put him through is unforgivable.

jellywrestler

24th August 2019, 17:29

Those cheating, sore losing, un sportsmanlike Aussies will be the last to find out what the bolts are after the dramas of the last couple or three Island Classics we have attended.
I'll stand my ground on behalf of the UK team boss Roger Winfield. What they put him through is unforgivable.

spill the goss then.

sidecar bob

24th August 2019, 17:40

spill the goss then.

Saves me a lot of explaining.
https://www.mcnews.com.au/island-classic-team-uk-roger-winfield/
If the pictures & story don't speak for themselves, Roger is the nicest gentleman you could wish to meet.
And that doesn't include the hoops of fire we had to jump through to run our Harris F1's there either.
In a nutshell, if it looks like you might beat them they make it tough.

HenryDorsetCase

24th August 2019, 17:53

Saves me a lot of explaining.
https://www.mcnews.com.au/island-classic-team-uk-roger-winfield/
And that doesn't include the hoops of fire we had to jump through to run our Harris F1's there either.
In a nutshell, if it looks like you might beat them they make it tough.

so a cynic might think that that the Strayans were screwing the scrum by inviting people from halfway round the world, who had to spend a bunch of their own money to get there, then ensuring they received nothing for being there, then screwing the rules so that it ensured that the invited parties could not win but were guaranteed to come second and third respectively behind a triumphant Straya?

Does that about sum it up?

jellywrestler

24th August 2019, 20:59

Saves me a lot of explaining.
https://www.mcnews.com.au/island-classic-team-uk-roger-winfield/
If the pictures & story don't speak for themselves, Roger is the nicest gentleman you could wish to meet.
And that doesn't include the hoops of fire we had to jump through to run our Harris F1's there either.
In a nutshell, if it looks like you might beat them they make it tough.

if it's the gas ruling my understanding it's a government driven thing about the something in the gas, motorcycling australia had their hands tied?
when i sent the roberts bikes over last year the penny dropped while they were on the water that they had older pads that likely contained asbestos. I near shit myself as they are becoming so tough on that shit coming into their country that it's a joke, but it's their call.....

sidecar bob

24th August 2019, 21:01

if it's the gas ruling my understanding it's a government driven thing about the something in the gas, motorcycling australia had their hands tied?
when i sent the roberts bikes over last year the penny dropped while they were on the water that they had older pads that likely contained asbestos. I near shit myself as they are becoming so tough on that shit coming into their country that it's a joke, but it's their call.....

Correct, but Roger never used it.
They tried to make it look like that was the reason he pulled out.

husaberg

24th August 2019, 21:05

if it's the gas ruling my understanding it's a government driven thing about the something in the gas, motorcycling australia had their hands tied?
when i sent the roberts bikes over last year the penny dropped while they were on the water that they had older pads that likely contained asbestos. I near shit myself as they are becoming so tough on that shit coming into their country that it's a joke, but it's their call.....

Funny they would be worried about a 100 liters of avgas when they had 12 above ground Nuclear test carried out there, ESP considering the Asbestos in those brake pads was likely mined there anyway and they still produce 1/3 of the worlds uranium.

sidecar bob

13th November 2019, 16:02

husaberg

13th November 2019, 17:17

Rc 30 current state.
the engine came back from a lovely chap in Cantebury with a detailed build report.
Lucky it didn't go before he got it, 3 minutes to blow up would have been a good run as it was.
Finally got forks back after many months away being rebuilt.
Made a wiring loom minus all the ballast, using OE quality connectors.
Had the radiators tank soaked at the local reconditioners & new spigots welded on & pressure tested.
Spent nearly two days working on the carbs that had been sitting for years, plus had crash damage & were twisted on their mounting. Plus bench balancing them, as there is no chance of getting to the adjusters once they are mounted.
Brembo callipers are away getting the mounting plate machined after filling the holes with tig so they can be re drilled in the correct position, rather than rattling around on too big holes like they were.
Still waiting for people from the UK to get back to me on a couple of hard to get bits that are RC30 peculiar and obsolete.

Always loved the look of those QD forks.
i spend many hours looking lustfully when i shoud have been working at John Bootes brand new OS RC30 in my teens.
The DIscs lok to be steel rotors pretty sure there were Cast iron ones back in the hey day
I have one HRC one here, i think. ex RS likely.
Did you manage to track down the early history?
Also glad the head bolts workout. Greg muttered something about wanting to doing RC30s exclusively;)
I would go with Merkel colour scheme if its history is nothing its a shame i heard Fred moved back to the US, i wonder if he still owns the property at Taupo
he had outboard franchise orr something i think?

Mr. Peanut

13th November 2019, 18:50

That thing is mechanical pornography.

Grumph

15th November 2019, 19:10

That thing is mechanical pornography.

If by that you mean filthy, disgusting, difficult - and you'd pay someone to do it while you watch, then yes.

Bob's original question - what did the engraved characters mean ? - should have been translated as "Buyer beware"

I ran through what was found and what was done in the engine with another RC30 owner. He had to sit down when he contemplated the cost.