Transmission drain plug, How to get that &^%$ out? |
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Transmission drain plug, How to get that &^%$ out? |
boxsterfan |
Oct 20 2013, 03:12 PM
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#1
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
Trying to change my trans fluid today. Was able to get the fill plug remove easily. However, the drain plug won't budge.
What can I do? Thinking a longer wrench for more leverage, but don't want to damage/round-out the plug. WD40? Brake Cleaner? |
mrbubblehead |
Oct 20 2013, 03:42 PM
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#2
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Twodollardoug Group: Members Posts: 1,155 Joined: 17-December 10 From: calimesa ca. Member No.: 12,492 Region Association: Southern California |
Trying to change my trans fluid today. Was able to get the fill plug remove easily. However, the drain plug won't budge. What can I do? Thinking a longer wrench for more leverage, but don't want to damage/round-out the plug. WD40? Brake Cleaner? try heat around the plug... |
r_towle |
Oct 20 2013, 03:48 PM
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#3
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
What are you using for a wrench?
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boxsterfan |
Oct 20 2013, 09:58 PM
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#4
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
What are you using for a wrench? I have the 17mm allen head tool from pelican that has 3/8" socket connection to a Snap-on socket wrench (16" long). I'm thinking heat or wd-40 and borrowing my neighbors BIG socket wrench for more leverage. Note: The engine was fully warmed up when I was attempting to remove the drain plug. I didn't even have the car on jacks. My driveway has a slight slope as I exit the garage so I pulled the car just in enough to get more room under the rear. I guess if I damage the plug I can always order a new one for $12. Looking for advice and I will tackle it this coming weekend. |
dangrouche |
Oct 20 2013, 10:10 PM
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#5
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dangrouche Group: Members Posts: 550 Joined: 1-May 04 From: San Francisco Bay Area Member No.: 2,012 Region Association: None |
BTDT. you are not giving yourself enough room for leverage; much easier if the car is elevated on jackstands and you can lie directly beneath it (wear safety glasses). you would be surpirsed how easy it rotates once you can lay beneath it and pull down. using a 1/2 inch ratchet with an adaptor does make it easier. using a 3/8 craftsman flex head ratchet should work fine.
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Trekkor |
Oct 21 2013, 03:35 AM
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#6
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I do things... Group: Members Posts: 7,809 Joined: 2-December 03 From: Napa, Ca Member No.: 1,413 Region Association: Northern California |
Put a little dab of anti-seize on it when you put it back in.
KT |
rhodyguy |
Oct 21 2013, 06:57 AM
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#7
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,080 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
get an adapter and use a breaker bar. i bought a 17mm hex that works with 1/2" drive.
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cary |
Oct 21 2013, 07:03 AM
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#8
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest |
Go buy a 17mm allen wrench at a bug shop.
Then buy about 24-30" of steel pipe. Slide the pipe over the allen wrench. Magic ............... Ditto on the anti-seize. Ditto in the breaker bar, you'll tear the teeth out of your socket wrench. BTDT. Numerous times. |
Brian Mifsud |
Oct 21 2013, 08:30 AM
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#9
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Mechanical Engineer Group: Members Posts: 981 Joined: 3-March 03 From: Penngrove, CA Member No.: 384 Region Association: None |
A 17mm nut and socket is a quick and easy tool to use for this. The nut fits inside that hex cutout on the fill and drain plugs.
Breaker bar on the socket and you can't apply more torque than that. |
914werke |
Jul 6 2019, 06:25 PM
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#10
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"I got blisters on me fingers" Group: Members Posts: 10,059 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
Resurrecting an old thread.
What wasn't addressed in the original responses is what to do when the socket is already stripped~! If you are lucky there is still enough of the plug protruding from the case to get some vice grips on..then uses a MAP on the case surrounding the plug, but not always is it that easy. I have one that some he-man thought it was necessary to screw in until there wasn't a thread showing!!! |
914werke |
Jul 8 2019, 01:15 PM
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#11
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"I got blisters on me fingers" Group: Members Posts: 10,059 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
try heat around the plug... (IMG:style_emoticons/default/blink.gif) knowing that the trans case is some mag/alloy mix how much heat is safe to apply? Propane ..MAP...Torch!! I recently threw a chunk of a tail cover in the backyard fire pit & it burned like the SUN for good long time (IMG:style_emoticons/default/happy11.gif) |
steuspeed |
Jul 8 2019, 02:37 PM
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#12
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Senior Member Group: Members Posts: 1,006 Joined: 12-July 11 From: Portland, Oregon Member No.: 13,308 Region Association: Pacific Northwest |
Jack it up and use a breaker bar. That's what I had to do. I think 30 ftlbs is the spec IIRC. Some jackass at jiffy lube prob put his air wrench on it before I owned it.
And re-fill with cheap NON synthetic GL5 hypoid gear oil. |
914werke |
Jul 8 2019, 03:04 PM
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#13
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"I got blisters on me fingers" Group: Members Posts: 10,059 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
Jack it up and use a breaker bar. That's what I had to do. I think 30 ftlbs is the spec IIRC. (IMG:style_emoticons/default/ar15.gif) (IMG:style_emoticons/default/shades.gif) What wasn't addressed in the original responses is what to do when the socket is already stripped~! |
Tbrown4x4 |
Jul 8 2019, 05:18 PM
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#14
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Senior Member Group: Members Posts: 703 Joined: 13-May 14 From: Port Orchard, WA Member No.: 17,338 Region Association: None |
Where does he say it was stripped?
"but don't want to damage/round out the plug." And avoid Jiffy Lube. I've rebuilt many engines on behalf of Jiffy Lube. |
Ed_Turbo |
Jul 8 2019, 10:22 PM
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#15
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Member Group: Members Posts: 440 Joined: 5-June 17 From: Hacienda Heights, Ca. Member No.: 21,151 Region Association: Southern California |
Where does he say it was stripped? I am not sure either, but if it was stripped then you really have to go out of your way and mess up these plugs. Allen’s usually strip if you don’t put it in correctly or over torque them. Keep a bottle of liquid wrench and/or small propane torch for stubborn bolts. -Ed |
IronHillRestorations |
Jul 9 2019, 06:28 AM
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#16
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I. I. R. C. Group: Members Posts: 6,719 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None |
I suspect it's possible that there could be some galvanic corrosion between the steel plug and the magnesium case, so using some anti-seize on the threads isn't a bad idea.
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Tbrown4x4 |
Jul 9 2019, 06:59 AM
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#17
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Senior Member Group: Members Posts: 703 Joined: 13-May 14 From: Port Orchard, WA Member No.: 17,338 Region Association: None |
Keep in mind that anything on the threads affects the torque reading. If you use anti-seize, then the stock torque will be too high.
There is a chart to figure out how much to reduce the torque based on what material is on the threads. |
76-914 |
Jul 9 2019, 07:34 AM
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#18
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,501 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
You're dealing with a pipe plug. If it strips then carefully drill a hole in the plug and remove the piece. Just be sure to clean any debris after drilling. The pic is just an example but you'd probably want a 1/2 or 3/4" extractor. https://www.amazon.com/Century-Drill-Tool-7...way&sr=8-40
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VaccaRabite |
Jul 9 2019, 07:51 AM
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#19
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En Garde! Group: Admin Posts: 13,443 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Assuming that the plug is not stripped...
Clean the bore of the plug. They can get filled in with dirt and oil and junk. You want as much of the bit in the plug as you can get. Heat, penetrating oil ( I like 50/50 acetone and ATF), and a breaker bar with a pipe on the end will set it free. If it is stripped, do all the same stuff (maybe you can still get purchase). If not, set the bit into the plug and weld it to the plug. Been there done that with other Allen type plugs and bolts, when all else failed. Zach Zach |
GregAmy |
Jul 9 2019, 08:18 AM
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#20
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Advanced Member Group: Members Posts: 2,298 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States |
Tack-weld a sliced section of Allen tool to the steel plug and use a 6-pt socket to get it out.
If that doesn't work, then a side-chisel and hammer on the inside and/or lips to rotate out. Clean and then replace the "innies" with 911 "outies". (IMG:http://www.914world.com/bbs2/uploads/post-15565-1531668339.jpg) |
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