Re: Noisy Iron Pukes

[farna@xxxxxxx]

Yep, mine sounded like a rod knock, but I knew enough about engines to figure out the sound wasn't coming from the bottom end (after close listening/inspection). That's why I took it over to someone with more experience to check. 

\On April 5, 2005 Bruce Hevner wrote:

> >Cam gears made a lot of noise, that's why I got it cheap -- previous owner
> got scared of it! It finally blew a head gasket at around 120K. Another
> >mechanic told me the noise was lash in the gears, but he'd never heard of
> one breaking. He also said if they were replaced about 20K later it would
> >sound the same. It was a temporary car for me anyway -- I drove it two
> years then sold it. Noise was only noticeable at idle and low speeds (say
> >under 30) anyway.
> 
> >On April 4, 2005 mail@xxxxxxxxxxxx wrote:
> 
> > I think the Puke moniker came from how noisy they were when the mid
> eighties hit them.
> > The cam gears wore out quick and rattled like hell.
> > Plus the pistons were loose in their bores. ABout one of the noisiest
> engines going.
> > A guy in the dealer I worked at sent out one and had it honed for .010"
> pistons and put in a new cam gear set.
> > When he dropped back in you couldn't tell it was running.
> > Very smooth and very quiet.
> 
> They did have a problem with timing gear noise. One noise was the gear
> moving back & forth in the block and could be mistaken for rod knock at an
> idle. They also had a good bit of gear whine. Once again there were several
> updates which eventually took care of the problem. The aftermarket gears
> were Aluminum and came with a different oil tube which took care of the
> whine. GM came out with a different thrust plate that allowed more oil to
> the thrust area. That took care of the knocking. Many of these engines used
> a vacuum pump which was hidden under the intake. That also made a good bit
> of knocking noise which could be mistaken for engine knock.
> If you did all the updates and took care putting them together they actually
> were a pretty good motor. Of course it took YEARS for them to sort out all
> the problems and fix them.
> Kinda like the 2.2 Chrysler. They had a LOAD of problems when they first
> came out. Over the years fixed most of them,,,,
> But that's another story,,,,
> Bruce Hevner
> 
> 
> 
> 
> 
> .


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