Timing gear crankshaft shim (s)
Turbo Mini Forums

Schrödinger's cat - so which one am I ???

The front plate is one of TurboDave's alloy jobbies, and the gasket is from minispares. No idea if it's a genuine gasket, but I measured it at 0.45mm before I fitted it.

THe genuine gaskets are way thicker than that. You could fit another gasket and you might ne some where near a genuine one

Is there a reason I can't shim or stick a gasket under the cam retainer plate, rather than fitting a thicker gasket under the front plate?

Yould do that, but the norm is fitting another gasket, or atleast the right gasket, but as long as it brings things in line and wont degrade after a time.

I wouldn't recommend a gasket behind the cam retaining/bearing plate as it could compress with time and let the bolts come loose - it would have to be a very narrow gasket as most of the back (and front) of that triangular plate is the thrust bearing surfaces to control cam end float so such a narrow gasket could compress easily over time - but no reason why you couldn't use a shim if you could cut one carefully enough.

But I would still go with the "correct" or thicker gasket behind the big steel plate - if you can't find a thicker one I would even use two thin ones with light a smear of red hermetite (or similar) between them.

(I think that is what Sprocket is suggesting too, but worded differently).

EDIT - just measured a new (non-genuine) one and the make I've got is 1.00mm thick. That's about 22thou thicker than yours so would put you back to requiring a single shim on the crank in the usual place (I think the standard ones are 6thou thick). I don't know the actual make but 95% sure it came from DSN, from one of their engine conversion gasket sets.

Edited by Rod S on 28th Jun, 2010.

Schrödinger's cat - so which one am I ???

I can't find a gasket locally so I have ordered two from minispares north. One is the same as the gasket I have fitted, so I can double up if necessary, and the other is a genuine gasket. I'll see how it goes.

If you want the 1.00mm one I've got, PM me your address and I'll put it in the post.

Now I know thinner ones are available, I'll be using one on the next (inevitable) rebuild.

Unlike you, I need to get rid of shims on the crank.....

Schrödinger's cat - so which one am I ???

Cheers Rod, I'll let you know. If the ones I get are of no use to me we can do a swap if you need thin ones. This is the thin one that I have fitted at the moment http://www.minispares.com/Product.aspx?ty=...id=36791&title=