Mark,
Your original definition of tappets was correct. Also called lifters or
followers. They are cylindrical metal parts that ride on the camshaft down
in the block and have the pushrod sitting in them, which in turn actuates
the rocker arm.
The small threaded "ball" that is adjusted at the rocker arm is an adjusting
screw and the process Mike describes is to adjust rocker to valve stem
clearance.
Greg
CD6250L
----- Original Message -----
From: "Mark Bullard" <mbullard@hawaii.rr.com>
To: <YeOldEd@aol.com>; <larryandrobin@charter.net>
Cc: <6pack@autox.team.net>
Sent: Monday, May 05, 2003 2:08 AM
Subject: Re: broken rockers,bent pushrods
> Thanks Mike,
>
> I think I was mistaken on what tappets are. I thought they were the
pieces
> that the push rods sat in in the block. I now understand what you were
> referring to and was aware of that process.
>
> Thanks again.
>
> mark
> ----- Original Message -----
> From: YeOldEd@aol.com
> To: mbullard@hawaii.rr.com ; larryandrobin@charter.net
> Cc: 6pack@autox.team.net
> Sent: Sunday, May 04, 2003 3:04 PM
> Subject: Re: broken rockers,bent pushrods
>
>
> You'd better read one of the manuals before you start! It's not
difficult.
> For each of the 12 tappets, you need to rotate the engine so its valve
is
> fully closed, and the cam is in the "null" position. (The book tells you
how.)
> Then you adjust the tappet with the lower nut to give exactly (help
guys...is
> it 0.010) and lock the lower nut with the upper one. Then recheck the
> clearance. Then move on to the next one.
>
> Mike N
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