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Re: FW: HELP!! (weird engine noise)

To: mgs@Autox.Team.Net, gardner@lwcomm.com
Subject: Re: FW: HELP!! (weird engine noise)
From: Paul Hunt <paul.hunt1@virgin.net>
Date: Thu, 29 May 1997 20:37:16 +0000
Mark J Bradakis wrote:
> 
> [BOUNCE mgs@Autox.Team.Net:  Admin request: /^subject:\s*help\b/i]
> 
>      Date: Sat, 17 May 1997 23:36:53 +0000
>      From: "Scott Gardner" <gardner@lwcomm.com>
>      Subject: HELP!! (weird engine noise)
> 
> I guess all this talk about how well my engine is running must have
> angered MOWOG, because it's acting up.  My wife took my '72 B to the
> beach today, and coming back, she said she heard a noise like a
> wrench being dragged across a chain-link fence.  It's gotten worse in
> the fifteen miles or so I've driven it trying to troubleshoot it.  To
> me, it sounds like somebody lobbing BBs into an empty soup can.  Very
> high-pitched pinging or clinking, not a knocking or thunking.  It
> sounded like it was coming from the region of the water pump or
> fan, but it may be farther back.  I can't really localize the
> noise.
>         Here are the symptoms:
> 1) The abovementioned noise.
> 2) Changing the timing doesn't seem to affect it.
> 3) Engine is running a little hot.  The needle now covers the 'N' on
> the gage.
> 4) Happened halfway through a tank of gas.  Have filled the
> tank with 93 octane to no avail.
> 5) Possibly unrelated, but when I go to start the car, the engine
> drags for a second, as if I had a low battery.
> 
> If it is engine ping, what can cause this sudden onset, and how do I
> stop it?  I'm pulling the head tomorrow morning to see if anything
> obvious pops up.  I'll be leaving about 2pm GMT, and ANY hints would
> be greatly appreciated.  What should I be looking at/for when I pull
> the head?  It's a pre-smog head (no air injection ports).
> Thanks a million,
> Scott Gardner

If you have the mechanical cooling fan check the bolts/grommets that 
attach it to the water pump.

PaulH.



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