Best initial cleaning approach for transmission |
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Best initial cleaning approach for transmission |
Tdskip |
Jan 18 2018, 07:35 AM
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#1
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
Good morning. The 901 on my project has already been removed from the car. I need to open it up to replace the 2nd gear synchro and it obviously needs to be clear clean clean before I do that.
Is it safe to pressure wash the exterior case so long as I don’t spray where the input shaft is? And been there / cleaned that tips to share? Thanks! |
iankarr |
Jan 18 2018, 09:06 AM
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#2
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,480 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
First drain all the gear oil. I got a wood movers dolly and screwed some 2 x 4s across it narrower than the bellhousing (using long wood screws through the bolt holes to secure) so the transmission could stand vertically and be easily rotated to get at all the nooks and crannies.
Remove the speedo drive and block the hole. Tape up the vent well and put a tarp under the dolly/transmission as you work. it's a greasy mess. Like 914sixer said, use a putty knife to get all the thick junk. Then I used 4 cans of brake cleaner to loosen it all up. More expensive than oven cleaner, but it seems to work quicker. Then I removed the stub axles to get at the tight spots and used a steam cleaner to do the final cleaning (HF has em for under a hundred bucks and it's my new favorite tool). Finally I painted with Alumi-blast and it turned out great. There's some disagreement as to how much paint (especially silver) contains heat, but I figure it isn't significant and protecting the box from the elements is probably better net-net. If breaking the whole tranny down, I might consider having it dipped to save myself the greasy mess and my wife complaining about stains on the driveway;) |
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