This is the why/how I always install a magnetic drain plug in Muncies - Page 2 - Chevelle Tech
Transmission & Driveline Transmissions and Differentials

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post #16 of 20 (permalink) Old Aug 13th, 14, 11:18 AM
 
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Re: This is the why/how I always install a magnetic drain plug in Munc

gentlemen, i know this is old, but i've searched and cannot find any info. with the aluminum casing on the M21, what glue did you use to reattach the magnet to the bottom of the casing?
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post #17 of 20 (permalink) Old Oct 26th, 14, 3:58 AM
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Richard
 
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Re: This is the why/how I always install a magnetic drain plug in Munc

If you do the magnetic drain plug conversion I would delete the old magnetic donut if possible.

The point is that you want the crud to stick to the easily removed and cleaned magnetic plug rather than the bottom of the case below the gears.

At these gas prices I want it 100+ octane, leaded, and my windshield washed!
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post #18 of 20 (permalink) Old Jan 21st, 15, 3:51 PM
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Re: This is the why/how I always install a magnetic drain plug in Munc

Quote:
Originally Posted by iakona View Post
gentlemen, i know this is old, but i've searched and cannot find any info. with the aluminum casing on the M21, what glue did you use to reattach the magnet to the bottom of the casing?
=================

Dont rec doing that because if that stock mag were to come loose it can easily trash the complete trans including breaking the case and or mainshaft in a heartbeat.

So have case tapped & threaded for a magnetic drainplug is best bet.

But if for some reason you still want to use the stock mag you should use something like JBweld's metal enfused epoxy thats a hvy dty adheasive that should not be affected by petrolium / oil products,but to be safe chk label on epoxy to ensure its ok to use with trans oil.

Also,make sure you scuff up the mag and trans case (where epoxy will be applied) along with cleaning after that with brakleen to ensure best possible adhesion so the mag stays put in bottom of trans case.

Also ensure you dont add oil to the trans until the epoxy on the mag has had more then enough time to fully cure.

Scott

SCOTT
1969 CHEVELLE SS396,ORIGINAL #'S MATCH,GOT IN 1978,(In 2001 rblt/bored original 396 .030 to 402)/M20/12BOLT/3:31'S
2002 MAXIMA (DAILY DRIVER/1 owner,GOT 3/2013 w-44k miles)
2009 HD ELECTRAGLIDE CLASSIC ULTRA (GOT 11/14 W-9,700 miles)
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post #19 of 20 (permalink) Old Dec 9th, 15, 5:03 PM
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Robert
 
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Re: This is the why/how I always install a magnetic drain plug in Munc

I am doing this modification now. Where can I get a magnatized drain plug?

Robert Gross

Robert Gross
1970 Chevelle SS396
Groveland, FL
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post #20 of 20 (permalink) Old Jul 18th, 16, 6:23 PM
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Freddy
 
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Re: This is the why/how I always install a magnetic drain plug in Munc

Great illustration Tom!!!
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