Bucket update

**Sketchy_Racer** · 6th April 2006, 19:28

Originally Posted by gav

Well, I'm sure when you're a bike mechanic and tell the customer that when his bike shits itself, I'm sure they'll understand.

Clearly, you havent done everything right....... Must be all that power its now producing, probably stripped all the teeth off the cam sprocket and snapped the camshaft in half. I'd suggest looking at gear driven cams.

bah hahahaha!!!

**Ivan** · 6th April 2006, 20:51

Yeah Iwas gonna build a Desmo valve system for it

**speedpro** · 6th April 2006, 21:39

Ivan I can see that you are enthusiastic but PLEASE get friendly with someone who knows what they are doing.

Just two examples of "iffy" things you've said or done - putting the exhaust on to stop the valves dropping and putting oil on the bore, even if it was 2-stroke oil, when you assembled the motor. At the most you could put maybe one little drop of oil on the skirt when assembling.

I'm hoping you used new piston circlips when you assembled the motor. I make it a point to destroy old clips when I take them out just in case I get tempted to reuse them. Buy a packet of them, they are cheap, and then there is no excuse. Go get a couple of bottles of different grade Loctite as well, and one of the best buys you could make is a "good" dual signal torque wrench or a "break-back" type. You will never regret it.

**Skunk** · 6th April 2006, 22:20

Originally Posted by Ivan

...problem is it is producing so much power that it is rattling every bolt lose... ...I so want to dyno it to see how much power I am producing... ...finish the last enginemounts to hold it in place bolt everything up... ...I may have to change the chassis it is running in because that frame isnt ment to producethat much power...

**Buddha#81:Me** · 6th April 2006, 22:36

I dont know why you post this shit Ivan you are diggin yourself a large hole with a large shovel.

I suggest you keep your gob shut go out to the shed and finish the thing and THEN tell us all about it.

**gav** · 6th April 2006, 22:49

Noooo, don't stop, funniest stuff I've read in ages!!

err, and you'll notice I havent updated my bucket building progress as well

**Ivan** · 7th April 2006, 10:16

Ok you have to trial things to learn it aint as bad as you guys are making out its quite simple just turns out its finishing thelast odds and sods I havent touched

**Ivan** · 7th April 2006, 10:20

Originally Posted by speedpro

Ivan I can see that you are enthusiastic but PLEASE get friendly with someone who knows what they are doing.

Just two examples of "iffy" things you've said or done - putting the exhaust on to stop the valves dropping and putting oil on the bore, even if it was 2-stroke oil, when you assembled the motor. At the most you could put maybe one little drop of oil on the skirt when assembling.

I'm hoping you used new piston circlips when you assembled the motor. I make it a point to destroy old clips when I take them out just in case I get tempted to reuse them. Buy a packet of them, they are cheap, and then there is no excuse. Go get a couple of bottles of different grade Loctite as well, and one of the best buys you could make is a "good" dual signal torque wrench or a "break-back" type. You will never regret it.

I may not be the flashest at this stuff but I do know if you dont have an exhaust header it causes the valves to drop after awile I was told this by a fewgood mechanics

And I know that alot of guys dont care but when you dont have any money to spend on ya bucket engine you are gonna do everything and the most damage is caused in the initial start up whilst everything is dry think about a dry piston anda dry bore for that first few seconds whilst its dry is gonna start damaging stuff

**speedpro** · 7th April 2006, 11:31

Originally Posted by Ivan

I may not be the flashest at this stuff but I do know if you dont have an exhaust header it causes the valves to drop after awile I was told this by a fewgood mechanics

And I know that alot of guys dont care but when you dont have any money to spend on ya bucket engine you are gonna do everything and the most damage is caused in the initial start up whilst everything is dry think about a dry piston anda dry bore for that first few seconds whilst its dry is gonna start damaging stuff

Re the exhausts and valves - If you are stupid enough to run without an exhaust then you would probably be stupid enough to do (or not do) something that would cause a valve to drop. Running without an exhaust system will not by itself cause a valve to drop. Drag race cars only have short pipes to get the gases to somewhere where they won't set fire to things. Aero engines in light planes typically have exhaust manifolds that get the gas outside the cowling and that's all. A typical fast bucket Honda single motor will occassionally drop valves even with an exhaust system due to the cam required and the revs they have to run at. Things break because of the hammering they get at revs, not because there isn't a bit of pipe bolted on somewhere.

There are lots of theories about assembling motors and how much lubricant to use on assembly. If it's a new piston in a fresh bore on a 4-stroke all the fast guys I know use a drop (or two) of oil on the skirt only of the piston. This includes everything from 125cc Hondas to 8.2L blown methanol motors. By fast I mean current or past NZ champions. I've assembled 4-stroke engines with stock cast pistons through to forged JE pistons and have always done the one drop of oil thing. I have never had anything that even looked like a problem caused by lack of lubrication. Note that this is what I've done, NOT what someone else has told me they think is a good idea.

**Ivan** · 7th April 2006, 12:08

Yeah well we each have our own theorys and what ever works stick with it I have had no problems in my RS125 doing it that way etc

**Skunk** · 7th April 2006, 13:18

Originally Posted by speedpro

Re the exhausts and valves - If you are stupid enough to run without an exhaust then you would probably be stupid enough to do (or not do) something that would cause a valve to drop. Running without an exhaust system will not by itself cause a valve to drop. Drag race cars only have short pipes to get the gases to somewhere where they won't set fire to things. Aero engines in light planes typically have exhaust manifolds that get the gas outside the cowling and that's all. A typical fast bucket Honda single motor will occassionally drop valves even with an exhaust system due to the cam required and the revs they have to run at. Things break because of the hammering they get at revs, not because there isn't a bit of pipe bolted on somewhere.

There are lots of theories about assembling motors and how much lubricant to use on assembly. If it's a new piston in a fresh bore on a 4-stroke all the fast guys I know use a drop (or two) of oil on the skirt only of the piston. This includes everything from 125cc Hondas to 8.2L blown methanol motors. By fast I mean current or past NZ champions. I've assembled 4-stroke engines with stock cast pistons through to forged JE pistons and have always done the one drop of oil thing. I have never had anything that even looked like a problem caused by lack of lubrication. Note that this is what I've done, NOT what someone else has told me they think is a good idea.

Hey Speedpro, I'm one who is reading your advice and listening... and I know you know your shit. Please keep posting it, eh.

**Ivan** · 7th April 2006, 14:34

Originally Posted by Skunk

Hey Speedpro, I'm one who is reading your advice and listening... and I know you know your shit. Please keep posting it, eh.

Yeah same I'm listening to its good advice but I'm just learning

**k14** · 7th April 2006, 17:54

Originally Posted by speedpro

Re the exhausts and valves - If you are stupid enough to run without an exhaust then you would probably be stupid enough to do (or not do) something that would cause a valve to drop. Running without an exhaust system will not by itself cause a valve to drop. Drag race cars only have short pipes to get the gases to somewhere where they won't set fire to things. Aero engines in light planes typically have exhaust manifolds that get the gas outside the cowling and that's all. A typical fast bucket Honda single motor will occassionally drop valves even with an exhaust system due to the cam required and the revs they have to run at. Things break because of the hammering they get at revs, not because there isn't a bit of pipe bolted on somewhere.

There are lots of theories about assembling motors and how much lubricant to use on assembly. If it's a new piston in a fresh bore on a 4-stroke all the fast guys I know use a drop (or two) of oil on the skirt only of the piston. This includes everything from 125cc Hondas to 8.2L blown methanol motors. By fast I mean current or past NZ champions. I've assembled 4-stroke engines with stock cast pistons through to forged JE pistons and have always done the one drop of oil thing. I have never had anything that even looked like a problem caused by lack of lubrication. Note that this is what I've done, NOT what someone else has told me they think is a good idea.

Geez who do you think you are telling ivan what to do. He's a skilled mechanic, haven't you seen his work? How many years experience do you have? He has atleast 1 at the top level of racing, just leave him to his own devices aye, he knows what he's doing