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Author Topic: Drain Bolt Gasket  (Read 7704 times)

camshaftit

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Drain Bolt Gasket
« on: June 26, 2008, 05:49:27 PM »
What is the original material for the oil drain bolt gasket?

Are the engine and trans drain bolt gaskets the same material?

Why use copper versus nylon?
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john302

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Re: Drain Bolt Gasket
« Reply #1 on: June 27, 2008, 02:17:45 AM »
plastic is original
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JohnZ

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Re: Drain Bolt Gasket
« Reply #2 on: June 27, 2008, 10:58:20 PM »
Manual transmissions only had a fill plug (no drain plug), and it was an NPT pipe plug; automatics had no drain plug either.
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Steve68

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Re: Drain Bolt Gasket
« Reply #3 on: June 27, 2008, 11:20:13 PM »
Quote
Manual transmissions only had a fill plug (no drain plug), and it was an NPT pipe plug;
My original M22 has a drain plug (NPT pipe).

Steve
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BlackoutSteve

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Re: Drain Bolt Gasket
« Reply #4 on: June 28, 2008, 08:20:28 AM »
Quote from: camshaftit on June 26, 2008, 05:49:27 PM
Why use copper versus nylon?

Nylon will conform to irregularities in the pan & bolt head with much less torque than that of copper. It's much softer.
I use the nylon washer/gasket as supplied in the felpro gasket kits, and they work just fine. No leaks!
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Restoring my RHD 69 Jane in Melbourne, Australia.
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JohnZ

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Re: Drain Bolt Gasket
« Reply #5 on: June 28, 2008, 08:53:39 PM »
Quote from: Steve68 on June 27, 2008, 11:20:13 PM
Quote
Manual transmissions only had a fill plug (no drain plug), and it was an NPT pipe plug;
My original M22 has a drain plug (NPT pipe).

Steve

Correct - original M22's had a drain plug, and all Muncies from 1970-up had one too; many pre-1970 Muncies had drain plugs added during rebuild as a convenience.
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9T4Z

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Re: Drain Bolt Gasket
« Reply #6 on: August 25, 2008, 10:16:12 PM »
Quote from: JohnZ on June 27, 2008, 10:58:20 PM
  automatics had no drain plug either.

Would someone please confirm this?   I've seen a number of TH350's with drain plugs...  don't look like replacement pans.
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Gary 9T4Z

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sebastien

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Re: Drain Bolt Gasket
« Reply #7 on: August 29, 2008, 05:02:49 AM »
powerglide transmissions have a drain plug as well don't they?
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Sebastien 68  327 rag top
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