Rear differential fill plug stuck
Thread Starter
Racer
Joined: Mar 2018
Posts: 456
Likes: 144
From: Frederick Colorado
Rear differential fill plug stuck
Great news, another disaster has reared its head.
my rear diff fill plug cannot be removed. It appears to be welded shut by corrosion or something. I have tried every trick I know to get that rat bastard out. It's been hacked at before, and unsuccessfully at that - the hex head is badly rounded. I m trying a 10mm and an 24" breaker and I can't make it stay in the hole.
When the fluid drained it was pure milkshake - don't think it has ever been changed. The bottom plug was brutally hard to get out as well, but broke loose.
I have no idea how I'm get this problem fixed. Has this ever happened you before?
my rear diff fill plug cannot be removed. It appears to be welded shut by corrosion or something. I have tried every trick I know to get that rat bastard out. It's been hacked at before, and unsuccessfully at that - the hex head is badly rounded. I m trying a 10mm and an 24" breaker and I can't make it stay in the hole.
When the fluid drained it was pure milkshake - don't think it has ever been changed. The bottom plug was brutally hard to get out as well, but broke loose.
I have no idea how I'm get this problem fixed. Has this ever happened you before?
Zen Vet Master Level VII
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
This will solve your problem. Take it to a pro and have them do it correct. My just is you are out for $150 plus fluids.
Thread Starter
Racer
Joined: Mar 2018
Posts: 456
Likes: 144
From: Frederick Colorado
I have air tools, and will jam a thin piece of metal into the plug to make the Allen fit tightly. Then I'll hit it with the big 300 lb-ft air hammer. I soaked it in aerokroil last night.
it almost can't be made worse at this point, so anything is an improvement.
it almost can't be made worse at this point, so anything is an improvement.
Last edited by FOGeologist; Aug 25, 2018 at 11:03 AM.
Melting Slicks
Joined: Nov 1999
Posts: 2,343
Likes: 854
From: MI
Cruise-In VI Veteran
here is a tip that may help,
Visually inspect our hex tool for any damage or roundness, is your hex tool is not in perfect shape, replace it before the next step.
Run down to your local auto parts store and get a tube of Permatex Valve Grinding Compound (1.5 oz).
Thoroughly clean your NEW hex tool and diff plug with brake cleaner to remove any oil contamination.
The valve grinding compound contains sharp abrasives which should aid in the hex tool getting a bite on the diff plug.
Apply the valve grinding compound to the end of the hex tool and the hex in the diff plug.
Ensure the that your tool is not "rolling out" of the plug during the turning of the tool, you will need to use pressure on the tool while rotating to tool.
hope this helps,
Cheers
Goose
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Melting Slicks
Joined: Nov 1999
Posts: 2,343
Likes: 854
From: MI
Cruise-In VI Veteran
Hold up on hitting it with the 300 LB hammer!
here is a tip that may help,
Visually inspect our hex tool for any damage or roundness, is your hex tool is not in perfect shape, replace it before the next step.
Run down to your local auto parts store and get a tube of Permatex Valve Grinding Compound (1.5 oz).
Thoroughly clean your NEW hex tool and diff plug with brake cleaner to remove any oil contamination.
The valve grinding compound contains sharp abrasives which should aid in the hex tool getting a bite on the diff plug.
Apply the valve grinding compound to the end of the hex tool and the hex in the diff plug.
Ensure the that your tool is not "rolling out" of the plug during the turning of the tool, you will need to use pressure on the tool while rotating to tool.
hope this helps,
Cheers
Goose
here is a tip that may help,
Visually inspect our hex tool for any damage or roundness, is your hex tool is not in perfect shape, replace it before the next step.
Run down to your local auto parts store and get a tube of Permatex Valve Grinding Compound (1.5 oz).
Thoroughly clean your NEW hex tool and diff plug with brake cleaner to remove any oil contamination.
The valve grinding compound contains sharp abrasives which should aid in the hex tool getting a bite on the diff plug.
Apply the valve grinding compound to the end of the hex tool and the hex in the diff plug.
Ensure the that your tool is not "rolling out" of the plug during the turning of the tool, you will need to use pressure on the tool while rotating to tool.
hope this helps,
Cheers
Goose
These extractors are made by Neiko
Neiko 04204A Hex Head Multi-Spline Screw and Bolt Extractor Set
Thread Starter
Racer
Joined: Mar 2018
Posts: 456
Likes: 144
From: Frederick Colorado
I've decided that my leverage is too poor, my tool set too inadequate, my experience is too limited and my patience too marginal for a successful outcome. I am taking it to a professional. Having the car towed now.
I have to say, that _________-_______ is stuck on like Thanos' glove.
I have to say, that _________-_______ is stuck on like Thanos' glove.
