I've started assembling my new motor and checked 2 each top and 2nd compression ring end gaps in 2 cylinders and get 0.014 in on all 4. The oil side rail rings are difficult because they move when I insert the feeler guage. These are Rock rings from engnbldr in a fresh 0.020 over '92 block.
Is this gap adequate or should I file them down?

 

sorry, i don't have a book/specs on me as I'm not building a motor right now

but you should lol.. Haynes or Chilton's will have those specs for ya!

if no luck with that, I'm sure someone will chime in with some info..

 

FSM says 0.0098-0.0185" for No. 1 and 0.0236-0.0323" for No. 2 compression rings.

Check with engnbldr, they'll have specific details on what you should have and what you should do.

 

The FSM i have shows .25 - .47mm for the top and .60 to .82 for the second, so I'm concerned that the second gap is too tight

 

Engnbldr said i must have a a very good machinist and he's fine with 0.014 in for both compressions. He also said they use OEM rings. So am I wrong in thinking they should have an OEM gap?

 

There are a dozen possible reasons for the discrepancy.

I'd trust them since they're the professionals.

 

thats what i was thinking...

also, i thought EB sold only DJ ROCK products?

 

EB told me that the label is DJ Rock but the manufacturer is OEM. At least for the rings.