I have a 998 Engine that I am in the process of rebuilding.
The double row timing chain kit I got from minispares appears to be out of alignment quite a bit.
I have read that usually the small sprocket needs shimming up to bring it out but in my case it seems to be the opposite and without the shims the small sprocket seems to need about 0.011 thou to be turned down off it.
Or can the large cam sproket be shimmed ?
Bearing in mind that I am thrusting the cam ( pushing the cam into the thrust plate ) to get this measurement otherwise it ( the small crank sprocket ) would need even more than 0.011 thou removed.
Any help with this would be appreciated

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Did i tell you that all my minis are 850's ?

You could try a much thicker front-plate "Gasket" to help pull the cam & cam gear out further

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Being a machinist I would machine the .011" off the back of the crank sprocket. I can't see any downside.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.