3.0L valve sounds

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ulas cosar coskun - 23 Oct 2004 06:57 GMT

Hello,

One of my friend has a 91 minivan with 3.0L engine in it. I noticed
that it has a very bad valve sounds. They hit the head like crazy. Can
the problem be fixed without removing heads, or should he remove the
head and machined it. I mean is there some shaft or larger rocker arms
that can fix the problem without costing lots of money.

thanks.

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maxpower - 23 Oct 2004 10:53 GMT

not being able to hear the noise i would say it is probably a bad lifter, if
so the head does not have to be removed
Glenn Beasley
Chrysler Tech

> Hello,
>
[quoted text clipped - 5 lines]
>
> thanks.

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nospam.clare.nce@sny.der.on.ca - 24 Oct 2004 05:03 GMT

>not being able to hear the noise i would say it is probably a bad lifter, if
>so the head does not have to be removed
>Glenn Beasley
>Chrysler Tech

Or just as likely a bad valve guide, in which case it DOES need to be
removed.

I've had to replace the heads twice on mine - never replaced a lifter.

>> Hello,
>>
[quoted text clipped - 5 lines]
>>
>> thanks.

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ulas cosar coskun - 24 Oct 2004 16:42 GMT

I will try to change or clean the lifters. If helps, i save alot of
time, or next weekend, I will start tearing apart the head.

what are the specification of the camshaft thickness, or any way if i
can tell rocker arms are still good.

Thanks.

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