If you go to a toy store and buy a child's "doctor's bag" they sometimes
have very nice stethoscopes in them. That's where mine is from. It works
great and has never been driven through my ear and into my brain. (That was
a different sort of accident...) :)
Glen
-----Original Message-----
From: OP <oliverp@gte.net>
To: buick-rover-v8@Autox.Team.Net <buick-rover-v8@Autox.Team.Net>
Date: Wednesday, September 09, 1998 5:20 PM
Subject: Re: Hydraulic Lifter problems
>Steve,
>
>You would be best in isolating where the noise is coming from. I am
>assuming you do not have a stethoscope. A great troubleshooting trick is a
>long(12" plus) screwdriver. Place the metal tip in various locations around
>the block, and while you have someone rev the motor to the point you can
>hear the knock, place your ear on the screwdriver handle (this is why you
>want the longest driver you can get) The plastic handle is instrumental
>intransferring the sound to your ear,soa pipe or rod will not be nearly as
>effective, you will be amazed what you hear from your engine. Start at the
>valve cover and work your way across and down. you can even use this method
>to determine which lifter or god forbid rod bearing is the noisy culprit.
>This is goodfor other things such as waterpump bearings and almost anything
>else. I had heard a knocking sound when I first got my TR4 started, and was
>very worried, I was sure it was a rod bearing, as it turns out it was a
>fender bracket that was loose. I hope your problem is as simple.
>
>Good Luck,
>
>Oliver P
>----------
>> From: Steve Chandler <chand@primenet.com>
>> To: rover <buick-rover-v8@Autox.Team.Net>
>> Subject: Hydraulic Lifter problems
>> Date: Wednesday, September 09, 1998 10:53 AM
>>
>> First of all let me say that I know nothing about hydraulic lifters.
>>
>> Having said that I suspect I have a bad one!
>>
>> On my 1980 tr8 I am experiencing a tapping noise when hot, which comes
>> and goes. Sometimes it will get noisy on acceleration or deceleration
>> and then if I use a constant throttle the noise will go away. At first
>> I thought it might be a rod end bearing, but the noise is intermittent
>> , I would'nt expect that of a rod bearing.
>>
>> So my questions to the list:
>>
>> Does this sound like a lifter problem ?
>>
>> Is there a way to isolate the bad lifter?
>>
>> If so, what is the fix (replacement lifter, or maybe oversize) ?
>>
>> I would appreciate any input, as I have never worked on an engine before
>> with hydraulic lifters, and this is mystery to me.
>>
>> TIA
>>
>> steve
>> --
>> Steve Chandler - Chandler-O'Bagy Associates stevec@rtd.com
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