[AT] no exhaust gasket?

[Jason]

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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