[AT] no exhaust gasket?
Dean VP
deanvp at att.net
Sun Sep 4 11:03:00 PDT 2016
I captured an old large metal file years ago exactly for this situation.
The file is huge. I use it to flatten surfaces such as what you are dealing
with. Then I purchase thick exhaust gasket material from NAPA and make a
gasket to fit. Has worked every time for me. Be diligent about using the
file to flatten the mating surfaces. It takes a little elbow grease but the
reward is substantial.
Dean VP
Snohomish, WA 98290
It's better to be judged by 12 than carried by 6.
-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Jason
Sent: Sunday, September 04, 2016 10:16 AM
To: Antique tractor email discussion group <at at lists.antique-tractor.com>
Subject: Re: [AT] no exhaust gasket?
Two finely machined exhaust surfaces don't need a gasket. But after time
there will be corrosion and warping. Don't use the tar, that's for pipes,
just some hi temp silicone gasket maker like a red or better will do the
trick.
On Sun, Sep 4, 2016, 12:09 PM charlie hill <charliehill at embarqmail.com>
wrote:
> It should work John, it's worth a try.
> I think I'd file both surfaces with a flat file and give it a try.
>
> Charlie
>
> -----Original Message-----
> From: John Hall
> Sent: Sunday, September 04, 2016 9:08 AM
> To: Antique tractor email discussion group
> Subject: [AT] no exhaust gasket?
>
> Not tractor but old combine. My Deere 3300 with a 219 gas engine has
> an exhaust leak. It is where the exhaust pipe attaches to the manifold.
> This is accomplished by means of a very heavy cast elbow bolted
> directly to the manifold with 3 bolts. There was no sign of any
> gasket. Me nor the parts guys at Deere can find a gasket in either the
> engine or the combine parts books. There best parts guy at the local
> store (I highly respect his ability) suggested there wasn't a gasket
> used. I cleaned and checked the surfaces and they are relatively flat,
within .005" or so.
> What do you guys think about the no gasket used possibilty? I have a
> friend that used to do heavy truck repairs. He says NAPA has an
> exhaust sealer that is very tar like. He said they were able to seal
> some exhaust leaks with it--used it where the flare of the pipe
> clamped to the manifold. He also said some Chevrolets were put
> together with no exhaust manifold gasket--I think this was figured out
> by mechanics, not the factory. This is all new to me, Every exhaust I
> dealt with had a gasket. What do you guys think?
>
> John Hall
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