Re: [Chrysler300] Engine/Compression question

["Don Verity" <d.verity@xxxx>]

Another thing that can cause low compression on a fresh rebuild would be the
wrong lifters. If late lifters are used with early pushrods, the lifters
will bottom out because the pushrods are longer on the early type. The
result will be that the valves will be open slightly. With a cylinder at TDC
on compression, see if you can rotate the pushrod by hand. You should be
able to. If you can't, then the lifter or pushrods are wrong, or to much was
cut off the heads and the pushrods are to long. This should have been
checked by whoever rebuilt the engine. Some disassembly will be required.
300ly,
Don
----- Original Message -----
From: Jonathan Sacks <jwsacks@xxxx>
To: <Chrysler300@xxxxxxxxxxxxxxx>
Sent: Friday, November 16, 2001 2:19 PM
Subject: [Chrysler300] Engine/Compression question


> Hi all,
>
> Quick question about compression:
>
> I just had my 413 rebuilt along with the carb.
> Replaced/rebuilt a lot of the other engine components
> at the same time.
>
> Unfortunately, after putting it all together and
> starting it up I find that I have low compression in
> two chambers. Around 30 when of course it should be up
> around 90.
>
> Now I've heard differing views on this, but my
> question is, can the compression problems be anywhere
> besides inside the chamber. Like in the carb, maybe?
> Or does it have to be either the rings or how the
> valves are seated?
>
> I guess what I'm asking is, am I going to have to pull
> the engine off and get the rebuilders to take it apart
> again?
>
> Always grateful for the advice,
> Jonathan
>
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