Re: rocker play

[Kurt McDowell <gmcd@domain.elided>]

John,
    My rockers are definatly the "boat style" stamped rockers. After what you said, I'm thinking my book is probably the wrong
book for my engine. I know that the rod lenth specs are wrong. but the  parts place says they were right. I bet that my book is
for the old style rockers and rods combo, and my engine is newer. I know for sure that my engine is not original. It was originaly
a amc engine. Also, I just found out that my seats are hard, which agian leads me to belive that ny engine is newer. My scout is a
76 and my book is for a 76.
I found a number embossed into the valley of my block I  think it is: 151023 HS ( im very
unsure about the letters and the last digit). My I.D. is .897  My OD is .862 wich makes
for a .032 tolarance wich scares me because the books max is .007. Thanks for taking the
time to mesure your rockers for me.

John A. Landry wrote:

> In a brilliant stroke of genius, Kurt McDowell <gmcd@domain.elided> blurted
> out:
>
> >    I've got a question I cant seem to find an answer from fromany local "engine experts". I have the 9 support rocker shafts
> >in my 345 The inner diameter of my rockers is about .030
> [snip]
>
> Grant,
>
> Which style rocker arms are we talking about... the "boat" style or the
> "cast" style (which look like folded metal) with the replaceable bushing.
> I have a set of both handy at home and will measure them tonight once I
> know which one we are looking at.  What's the year and serial number of the
> engine?
>
> I believe the specs you mentioned are for the older cast style rocker and
> not the newer boat style.  The boat style are *much* looser... almost
> sloppy one could say.  That's just they way they're designed.
>
> Regards,
>
> John L.
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