[DeTomaso] Techno question: a fine mess--update II

thomas thomas at hax.se
Sun Oct 11 14:13:05 EDT 2015


Doesn't the balancer clamp the cam chain gear? I don't think running without balancer is good idea.

> 11 okt. 2015 kl. 19:03 skrev Asa Jay Laughton <asajay at asajay.com>:
> 
>   I'm not liking where this is going.  I'd remove the balancer and run
>   it.  You might get a little oil splash past the seal but I honestly
>   don't see how it could be the balancer.  I'm beginning to fear its more
>   dastardly, like a main or rod bearing or thrust bearing on the cam.
>   Trouble is I don't think you can get the balancer off.
>   Asa
>   Sent using Jedi Mind Tricks
> 
>   Charles Engles <cengles at cox.net> wrote:
>   Dear Bill and Asa, et al,
>              Test drive without the AC belt still showed noise.   While
>   the engine was still warm, I removed the alternator belt.  To my
>   surprise, the chirpy noise is still there.  The garden hose stethoscope
>   seemed to show that it was maximal within the bowl of the crank
>   pulley.   Hmmm???  No noise from the oil pan nor water pump
>   (obviously).
>              Next, I removed the crank pulley and the noise is still
>   chirping away.   I checked again that the balancer isn't hitting
>   anything on its backside and a wire hanger feeler shows nothing between
>   the back of the balancer and the front cover or oil pan.
>              Next, I could only imagine that I had somehow not torque the
>   balancer bolt well and that it was loose.  Sorry, it is tight and I am
>   sure that it has a dose of anti seize and the correct torque.
>              The balancer is a BHJ and is about nine years old with about
>   10k miles.  It looks good.  It was recently out and reinstalled last
>   year before the Houston Rally.  No noise was noticed until afterwards
>   while driving "normally" in town, etc.   Sounded like a belt, but it
>   isn't all belt noise.
>              I suppose the next step would be to loosen the balancer
>   bolt, again apply a touch of antiseize if it looks like it needs it and
>   then retorque.
>                        Warmest regards, Chuck Engles
>   -----Original Message-----
>   From: bill gaino [mailto:gaino at earthlink.net]
>   Sent: Sunday, October 11, 2015 9:09 AM
>   To: Charles Engles
>   Subject: Re: [DeTomaso] Techno question: a fine mess--update
>   Charles, I went thhrough this with a corvette it turned out to be a
>   loose harmonic balancer bolt. Big one that goes in the end of crank.
>   Bill 1362
>   https://www.facebook.com/pages/slickpaintcom/129049637149634?ref=ts&fre
>   f=ts
>   If you want it slick.  www.slickpaint.com  like us on facebook
>   -----Original Message-----
>> From: Charles Engles <cengles at cox.net>
>> Sent: Oct 10, 2015 9:30 PM
>> To: detomaso at poca.com
>> Subject: Re: [DeTomaso] Techno question: a fine mess--update
>> 
>> Dear Forum,
>> 
>> 
>>          It is still a fine mess.  The gremlins are well
>   entrenched.
>> At this point, I have:
>> 
>> 1) ascertained that the balancer isn't hitting the block or pan
>> 
>> 2) been unable to localize precisely the noise source despite the
>> mechanic's stethoscope or the garden hose stethoscope (it actually
>> works a little better in this instance, but still not a success).  It
>> is coming from the front of the engine-belt area.
>> 
>> 3) replaced the alternator: no change and now the ammeter needle
>> bounces
>> 
>> 4) ascertained that I do have an electronic voltage regulator from
>> Motorcraft
>> 
>> 5) replaced both belts: no change other than  a slight decrease in
>> loudness and slightly different quality to the noise
>> 
>> 6) replaced the idler pulley:  no change. Sigh.   The old pulley does
>   feel
>> like the bearing is starting to go out compared to the smoothness of
>> the replacement, but still no noise silencing with the change.
>> 
>> 
>>       I am perturbed.  I have removed the new AC belt and I will
>   test
>> again tomorrow to see if I have finally localized the noise maker.  I
>> am thinking about trying some of the belt treatments for squeaking
>> since I have replaced *everything* at this point.
>> 
>> 
>>       With apologies to Mr. Friedman's famous quote: " Sadder,
>   older,
>> wiser, I go now, seeking through faith and reason combined  the answer
>> to this baffling pageant which is the Pantera and the small by play,
>> which is my amateur wrenching."
>> 
>> 
>>                 Philosophically yours,  Chuck Engles
>> 
>> 
>> 
>> 
>> 
>> 
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