Diff cover removal via compressed air? - JeepForum.com
 
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post #1 of 5 Old 09-23-2013, 01:25 PM Thread Starter
efm-7
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2013 JK Wrangler 
 
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Diff cover removal via compressed air?

Hi,

I'm going to be doing an oil change on my Dana 30 - and before I risk scoring up the mating surface using a prying tool, I was wondering if I could try to separate it via compressed air and a blow gun pressed up against the filler hole after the oil is removed via suction...

Is there any risk to doing this other than flat out not working?


2013 JK Wrangler Sport 6sp - Crush Orange w/colored top
4.10 gears, Eaton E-Locker, HID projectors
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post #2 of 5 Old 09-23-2013, 02:06 PM
biffgnar
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Way more trouble than its worth. Just pry it off. Scoring of diff faces gets over blown. You're unlikely to score it and even if you do a little RTV is squishy. It fills in things like that.

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post #3 of 5 Old 09-23-2013, 04:11 PM
jp360cj
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If the goal is simply changing the diff oil and you removed the oil with suction, why would you need to worry with the cover? Just fill it back up.

I would be surprised if you could even pressurize the diff to get the cover off. Seals would probably blow first then there goes your pressure.

I usually just hit mine with a rubber mallet. breaks it loose enough to easily pry it the rest of the way off.

77 CJ-7- AMC 360, Edelbrock cam, MC2100, Fenderwells, CJ T18/D20, Chevy D44/EB 9" rear, Trutrac f/r, 4.11, SOA, 1.25 lift shackles, 35x12.50 BFG KM2s, Shackle Reversal
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post #4 of 5 Old 09-23-2013, 05:52 PM Thread Starter
efm-7
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I recently had a regear so I want to do a thorough drain to catch any metal particles.

I guess getting the cover off the conventional way might not be as difficult as I'm expecting. Now I'm more worried about getting it sealed up again lol

2013 JK Wrangler Sport 6sp - Crush Orange w/colored top
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post #5 of 5 Old 09-23-2013, 10:43 PM
jp360cj
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Just clean the old gasket/rtv off the housing and cover then reapply before installing. I use rtv because I haven't had any problems with it leaking like the cheap paper gaskets did.

77 CJ-7- AMC 360, Edelbrock cam, MC2100, Fenderwells, CJ T18/D20, Chevy D44/EB 9" rear, Trutrac f/r, 4.11, SOA, 1.25 lift shackles, 35x12.50 BFG KM2s, Shackle Reversal
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