[Farmall] 3514 (D188 engine) valve lash question

[Frank - Sandy Crowe]

I know this isn't an antique tractor, but someone here might be able to help.  

I'm ordering a manual for the engine, but wondering if anyone could tell me the valve adjustment lash on a D188 engine used in a 3514 loader tractor.  Evidently they used two different engines, this one is an early tractor (SN 569) which used the D188. The manual I have shows a completely different later engine.

Thanks

Frank
    thecrowes at hotmail.com