Cooling an air-cooled engine

[car]

Wrong! My true requirement is to play around and generally amuse myself by playing with copper tubing

Oil cooler mods: one of the many fun things to do with a VW engine.

http://www.type2.com/library/cooling/oilcoole.htm

Citroen 2CV perverts do similar things, IIRC.

[imdying]

Wow, I'm learning shitloads. Is that how NoS/NOS/Nos/nOS/WTF works... it condenses the air heaps, like a turbo.

Nope, but there's heaps of good books on the subject.

[xwhatsit]

Heh, one day I'll build my own engine. I'll re-invent the concept of pushrods or something, and believe I'm the first one to ever do it, along with fuel injection. Wait... I already know about pushrods... how about pullrods? You could tie some string to the valves, and route it through pulleys .

It's obvious my education was based in computer science, isn't it?

[stanko]

If you want extra cooling for your overclocked motor, first overclock it. port the head fit a water tank to your bike with a small pump like a windshield washer pump have some spray nozzles that spray water onto the motor a kind of unjacketed water cooled bike, total loss system. have a button to turn the pump on . You will only need it at the lights onlookersa will think you have burst a hose. ride into the petrol station an filler up for free.

not too many bucket racers fit waterjacket to their bikes, that was in the 80's when water cooled bikes were rarer than rocking horse shit. Now you just buy an FXR and go racing.

A CO2 fire extinguisher would be even more spectacular than the water spray cooling but may result in cold siezures

[Ixion]

Heh, one day I'll build my own engine. I'll re-invent the concept of pushrods or something, and believe I'm the first one to ever do it, along with fuel injection. Wait... I already know about pushrods... how about pullrods? You could tie some string to the valves, and route it through pulleys .

It's obvious my education was based in computer science, isn't it?

Sorry.Too late. Ducati made a well known pull rod engine. Try again

[Motu]

Never heard of an "ordinary" four stroke air cooled engine piston seizing in NZ conditions. .

Sidevalves do,for the same reason 2 strokes do - huge cylinder distortions.Having an exhaust valve and port in the cylinder is not too good an idea.

I seized my B31 once when I had a high comp piston with a chamfered lower edge - I wondered if it sliced off too much oil on the downstroke and starved the bore of oil?

[xwhatsit]

Ah, you see, I first started to worry about my bike overheating after recently re-reading ye olde Zen and Art; early on he talks about seizing his CB350 or whatever that beautiful bike was. Now, America is of course much warmer (in places) than NZ, but an old 60s engine like that would be sidevalve, wouldn't it?

I think I should just trust my bike to not seize... at least as long as it's put back together correctly, lol. It all looks so delicate inside, I can't believe such an intricate mechanism can contain such violent explosions.

[AllanB]

Just add a oil cooler to deal with oil temp.

Save the copper pipe for your still.........

[xwhatsit]

If you want extra cooling for your overclocked motor, first overclock it. port the head fit a water tank to your bike with a small pump like a windshield washer pump have some spray nozzles that spray water onto the motor a kind of unjacketed water cooled bike, total loss system. have a button to turn the pump on . You will only need it at the lights onlookersa will think you have burst a hose. ride into the petrol station an filler up for free.

not too many bucket racers fit waterjacket to their bikes, that was in the 80's when water cooled bikes were rarer than rocking horse shit. Now you just buy an FXR and go racing.

A CO2 fire extinguisher would be even more spectacular than the water spray cooling but may result in cold siezures

Oh I didn't see you up there. Lol@faux-steam engine !

Question still remains though why they did bother to put natty little jackets on their bikes? I mean, it wasn't just for rocking-horse shit bling factor?

[stanko]

on a 2 stroke it means you can run closer piston to bore clearences, and they dont go "off" like an aircooled 2stroke when they overheat

[The Pastor]

bro just do it and make sure you take alot of pictures! It might work fine.....

[Dadpole]

And do yourself a favour. Throw away ye olde Zen and Art book. A load of bollocks IMHO.

[xwhatsit]

Lol I never understood the vitriol motorcyclists direct at Zen and Art; I think it must be to do with being pissed off it's got nothing to do with motorcycle maintenance haha. If you read the book as a beginner's guide to philosophy, it's actually quite fascinating if you're into such things. Which I'm clearly not, as I'm a tough motorcycle dude *ahem*

[Ixion]

Maybe because he rode a Honda ? Though the CB77 was a jolly good bike in its day. I owned two and I'd buy one and restore it if I could find one

[xwhatsit]

Ah yes, CB77, that's right -- 305cc, not 350. Superhawk. I remember reading though that they are really bloody expensive though... collector's items. Upon some casual googling though, it appears that it's not a sidevalve, it was one of the first overhead cam models and had a 9200RPM redline lol.

Maybe the engine seized just because Pirsig was such a dry old bugger?