Tip on manual trans -diff fluid change

[dragboat]

When changing the gear oil in a manual transmission and rear differential with threaded filler pugs make certain those filler plugs threads are not stuck so the plug cannot be removed to refill before draining the fluid.

I have seen and heard of this happening to a few people in the past.

 

[Propflux01]

Why do I see you in the driveway cursing at the plug that just won't come out!!!

 

[Pete]

I have a stuck filler plug! It's on my wife's 1988 Prelude Manual Transmission.

The problem is that the formerly 11/16" plug head is now about a 5/8" round head

Does anyone have a suggestion as to how to remove this? How 'bout one of those Craftsman adjustable, no-scratch, grippers; or would a screw extraction be more appropriate?

 

[BOBISTHEOILGUY]

I used a good ole pipe wrench on my last one I had stuck.

 

[cousincletus]

Agree with the pipe wrench idea. By the way, they make little pipe wrenches that would be perfectly suited for your problem. Spray penetrating

oil around the plug, also.

 

[TheLoneRanger]

Ditto on the pipe wrench. Lightly tap on the fitting with a hammer before trying to loosen it. Also tap on the wrench to get it to loosen. The vibrations from the tapping will loosen it easier than will a steady torque. (Same principle as an impact wrench)

 

[satterfi]

I had to use a pipe wrench on the bleeder valves for the rear brake calipers on my wifes car. The monkey who bleed the brakes before me tightened them down so much that a regular wrench wouldn't work.