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cam caps

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ogre
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cam caps

#1 PostAuthor: ogre » Mon Jun 15, 2015 11:31 am

hi all is it ok to swap cam caps from one cyl head to another or is it a big fat no no.
thanks
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Pigford
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#2 PostAuthor: Pigford » Mon Jun 15, 2015 11:54 am

Hit & miss :|

Engineering sense says NO.... but reality has seen many successful swaps :wink:
And on the 7th day... Zeds were created!
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Garn 1
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#3 PostAuthor: Garn 1 » Mon Jun 15, 2015 1:59 pm

Agree with Pigford, They are line-bored.
Have seen it done, with a large supply of cam caps and a lot of luck!.
RegardZ.
Garn (Sydney) Z1, Z1A, Z1B and Z900-A4
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kev edwards
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#4 PostAuthor: kev edwards » Mon Jun 15, 2015 4:06 pm

It's a yes on that one, set head up on the bench with no valves in it, if cams turn freely with very little resistance you will be ok, if they bind swap a cap over you will get there.
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ogre
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#5 PostAuthor: ogre » Mon Jun 15, 2015 4:31 pm

Thanks for that lads sounds possible the reason i asked someone has semi butchered the head in the past and drilled some holes out for a bigger bolt m8 . Got a standard head with no caps so i dont know whether to make some dowels for the btm of caps or just get some std ones
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jimmock
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#6 PostAuthor: jimmock » Mon Jun 15, 2015 8:00 pm

That question has always been a BIG subject.

You are not meant to, but it does get done.

If I had a head with a broken / missing cap, I'd try it!!

They are line bored so they theoretically should never be mixed up.
Jimmock. :wnkr


SPEED IS JUST A QUESTION OF MONEY...HOW FAST DO 'YOU' WANT TO GO?

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kev edwards
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#7 PostAuthor: kev edwards » Wed Jun 17, 2015 7:28 am

If they have previously gone to 8mm, the two bolt holes in each cap that had dowels in originally I would make a shouldered insert with the dowel incorporated the bottom end being 10mm with a 6mm thread down through it, a few years ago I made a couple for MR PUFFIN on here and his bike is still going strong.
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