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Leaky rearend II: the wipedown


DavyZ

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Well, as you know, I posted that my R200 differential was leaking--it turns out the leak was from the bottom drain plug.

 

I took the advice given from several members and did the work. Here is a list of what I did (simple and effective):

 

1) I drained the diff of remaining oil. Not good--there was only about 1/3 cup of oil left. I hope and pray that the previous owner had closer to a quart in it when they ran the car. Keep in mind I have had this diff for about 2 years and it has leaked a lot onto cardboard.

 

2) I removed the drainplug and cleaned the very dirty threads overnight in B-12 engine parts cleaner. I also cleaned up the threads on the coverplate as well.

 

3) I put liquid teflon on the drainplug threads and screwed it in as much as I thought prudent. Since it doesn't seem to bottom out, I was very careful and didn't over or under torque the plug.

 

4) I decided 80W/140 RedLine diff oil was a good choice so I filled it with that. The only problem was that I couldn't budge the upper fillplug. The diff is not in a car, so leverage was a PITA. This is not the best idea, but I pulled the vent tube at the top and filled it slowly from there using a fabbed funnel. The oil pours like cold honey and looks as delicious--no I didn't try it...

 

5) The results seem to be good! No leaking at all in a week and the diff is filled with good quality fluid.

 

Thanks to all who gave their advice! icon_smile.gif

 

David

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