[Supras] Help in diagnosing strange sound - UPDATE / RANT

Thu Apr 19 14:29:52 CDT 2007

Darren, your wierd compressor noise is likely the exhaust manifold leaking as you suspect. My first exhaust manifold gasket replacement convinced me to buy a right angle drill, modify (shorten) a drill bit and install heli-coils for all of the studs. Most recently I went ahead and heli-coiled the same on the NA head I bought and used for the rebuild. Even with new Toyota studs and nuts my turbo comes loose every few weeks which is a real PITA but I've become used to it after this many years.

hth,
Rockey 91T

----- Original Message ----
From: D P <darnsuprat at hotmail.com>
To: sleekster96 at hotmail.com; Bigmacz28 at aol.com; psantos at cfl.rr.com
Cc: Supras at supras.com
Sent: Thursday, April 19, 2007 9:09:36 AM
Subject: Re: [Supras] Help in diagnosing strange sound - UPDATE / RANT

Ok, yesterday evening after the engine cooled down, I was 
probing/poking/listening for anything that could be making that kinda air 
compressor motor sound on my 92T.  At this point, I'm starting to think it's 
the leaking manifold gasket......sounds weird?  Well, I've noticed this leak 
for a while now and I've attributed it to the fumes in the cabin mystery 
which I posted here a few weeks ago.
The leak is getting worse and worse.  I've listened to the sound carefully 
and it sounds like.....get this......tugga tugga tugga tugga tugga 
tugga.........yes, this coming from the leak on the manifold gasket way at 
the back behind the turbo.
The more I drive this supra daily, the more things I discover is going bad 
and needs maintenance.  Here's a lists I've got so far:
- Leaking exhaust manifold
- busted rear shocks....leaked oil on my garage floor like 2 years ago
- leaking oil hose.......the hard one behind the alternator
- check engine light....stays on for about 5 mins when engine first started 
cold - asked about this on the list a while back.....Code 21 - Oxygen Sensor 
Heater Signal
- AC.....converted to r134a last Friday and still cold for the 80F Tampa 
days.....who says r134a not as cold????  Still looking for oily residue 
anywhere that could indicate freon leakage

Another thing I've noticed also is while in stop and go traffic, when taking 
off, the engine sounds noisy....like the oil pressure is not building up 
fast enough or something.  Reason I think this is because it's the same 
sound I get right after I do and oil change and start the engine and rev it 
about 1500 and the noise just dies out after about 10 seconds.

So far, these are the problems I've noticed since I started driving this car 
daily.  After I get the Tercel back on the road, I'll start working on the 
Supra.

I enjoy driving my 92T and I enjoy working on it and fixing it up........I 
told my wife this Supra will die of old age instead of driven to death with 
high mileage/high usage.

Darren
92T 5-Speed White Package
Canadian Model in Florida

>From: "Gregg Bradstock" <sleekster96 at hotmail.com>
>To: darnsuprat at hotmail.com
>CC: Supras at supras.com
>Subject: Re: [Supras] Help in diagnosing strange sound and 
>ACconversionupdate.
>Date: Tue, 17 Apr 2007 10:57:02 -0400
>
>Only new ones from the dealer.  I reused the one from the original motor to 
>replace the one on the JDM I had rebuilt.  I'm not sure if it is the 
>tensioner, since the noise just started last friday.  I only use the car 3 
>times a week now.  I will later today and will keep an ear out.  It 
>initially sounds like a bearing sound.
>
>I've heard that sound in an outboard with a top bearing gone as well as the 
>previous tensioners.
>
>Seems to me like its a normal wear thing.
>
>Gregg
>87NA
>
>
>>From: "D P" <darnsuprat at hotmail.com>
>>To: sleekster96 at hotmail.com
>>CC: Supras at supras.com
>>Subject: Re: [Supras] Help in diagnosing strange sound and 
>>ACconversionupdate.
>>Date: Tue, 17 Apr 2007 10:01:16 -0400
>>
>>Gregg,
>>Are you saying the belt tensioner is making that sound?  When you replaced 
>>it, did the sound go away?  How come you had to replace it twice before 
>>and again?  Are you getting used ones from the wreckers or new?
>>
>>Darren
>>92T 5-Speed White Package
>>Canadian Model in Florida
>>
>>
>>
>>
>>
>>>From: "Gregg Bradstock" <sleekster96 at hotmail.com>
>>>To: darnsuprat at hotmail.com, psantos at cfl.rr.com, Supras at supras.com
>>>Subject: Re: [Supras] Help in diagnosing strange sound and AC 
>>>conversionupdate.
>>>Date: Tue, 17 Apr 2007 09:51:19 -0400
>>>
>>>I have a similar sound right now.  I have replaced the pulley tensioner 
>>>at least 2 times (286k miles) and might need to do so again.  My sound is 
>>>not constant, and I can only hear it at idle.  That's not to say that it 
>>>isn't screaming at other rpms.
>>>
>>>Gregg
>>>87NA
>>>
>>>
>>>>From: "D P" <darnsuprat at hotmail.com>
>>>>To: psantos at cfl.rr.com, Supras at supras.com
>>>>Subject: Re: [Supras] Help in diagnosing strange sound and AC 
>>>>conversionupdate.
>>>>Date: Tue, 17 Apr 2007 08:59:13 -0400
>>>>
>>>>The sound I'm talking about is not the "gurgling" from the 
>>>>coolant........I'm talking about a sound like "gargling"..........sounds 
>>>>like an air compressor only faintly.  If I keep some water in the back 
>>>>of my mouth and breathe out with my mouth, I can imitate the sound.  
>>>>Maybe it's a pulley bearing or something like that.
>>>>I realized that I may not have explained the sound clearly in my first 
>>>>post.
>>>>
>>>>Darren
>>>>92T 5-Speed White Package
>>>>Canadian Model in Florida
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>From: "Peter" <psantos at cfl.rr.com>
>>>>>To: "D P" <darnsuprat at hotmail.com>, <Supras at supras.com>
>>>>>Subject: Re: [Supras] Help in diagnosing strange sound and AC 
>>>>>conversion update.
>>>>>Date: Mon, 16 Apr 2007 17:12:24 -0400
>>>>>
>>>>>I know of the gargling you refer to and remember it on my 83 celica 
>>>>>clearly. It seemed to be related to the heater core, its not something 
>>>>>I have experienced at all on the mkIII. The one close thing I found is 
>>>>>that when the 7m was not completely burped it had an exaggerated gargle 
>>>>>until it cleared out. Other than that Id hate to speculate on what your 
>>>>>hearing.
>>>>>
>>>>>
>>>>>----- Original Message ----- From: "D P" <darnsuprat at hotmail.com>
>>>>>To: <Supras at supras.com>
>>>>>Sent: Monday, April 16, 2007 9:33 AM
>>>>>Subject: [Supras] Help in diagnosing strange sound and AC conversion 
>>>>>update.
>>>>>
>>>>>
>>>>>>I started noticing about a week ago a strange sound when my 92T is 
>>>>>>idling.
>>>>>>The sound is difficult to describe here in email but it sounds kinda 
>>>>>>like
>>>>>>gargling.  It's a little faint and if I give it a little gas, it'll 
>>>>>>increase
>>>>>>and then die out over the sound of the engine.
>>>>>>Has anyone noticed this on their Supra?  It probably isn't anything 
>>>>>>serious
>>>>>>but I dislike abnormal sounds or noises on my Supra.
>>>>>>
>>>>>>Funny thing is, I had a 84 Celica for years and I noticed the same 
>>>>>>sound. I
>>>>>>took it to Yonge/Lawrence Toyota in Toronto and after a few attemps to 
>>>>>>fix
>>>>>>it, it was gone.......they tried so many fixes and I lost track of 
>>>>>>what they
>>>>>>did to get rid of the noise.  I ended up selling this car at 294,000 
>>>>>>KM.
>>>>>>Loved that little Celica.  It was my winter beater while my 92T was 
>>>>>>stored.
>>>>>>
>>>>>>Also, had my 92T ac converted to r134a last Friday.  The mechanic put 
>>>>>>some
>>>>>>die in and said when and if the ac dies, it'll be easy to find the 
>>>>>>leak.
>>>>>>
>>>>>>Darren
>>>>>>92T 5-Speed White Package
>>>>>>Canadian Model in Florida

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