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  #1   IP: 172.58.229.181
Old 03-31-2019, 12:11 PM
Siobhan Siobhan is offline
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Oil leak from between oil seal retainer and bearing housing

Hi! Irwin 27, new to us Ď67 A4, fitting it in on new stringers and engine mounts.

After our first test fit, with the aft of the engine lower, we noticed an oil leak out of the bottom of the back of the engine- where the oil seal retainer articulates to the bearing housing oil pan and oil pan. The transmission on this A4 came from a different engine, something went wrong with the original when the guy who sold it to us was testing it.

Iím wondering if I have to replace the oil seal or if it is possible just to replace the bearing housing gasket. It also looks like it may be coming from the lowest of the bolts holding the oil seal retainer in place. Ideas?
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  #2   IP: 32.211.28.40
Old 03-31-2019, 08:32 PM
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Al Schober Al Schober is online now
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Leaks in that area are tough. One known cause of a leak at that bolt is to use a split lock washer, but the washer in the photo looks like a solid copper one.
First thing I'd try is to remove the bolt and to reinstall with some sealant on both sides of the washer - don't be skimpy. If that fails, you're into more serious work.
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  #3   IP: 172.58.231.232
Old 04-01-2019, 09:02 AM
Siobhan Siobhan is offline
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Sealant type

Thanks Al, I will try that today. What kind of sealant is appropriate it this situation?
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  #4   IP: 73.178.188.222
Old 04-01-2019, 09:19 AM
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rickinnj rickinnj is offline
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There are some pictures of that area disassembled in my 'engine removal' album if that helps. I used Permatex Black for the reassembly.
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Last edited by rickinnj; 04-01-2019 at 09:19 AM. Reason: fat fingers
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  #5   IP: 172.58.231.232
Old 04-01-2019, 11:47 AM
Siobhan Siobhan is offline
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Thanks rick.

From your pictures I canít tell if you used both 5/16 copper washers and lock washers or just copper washers. In the atomic 4 arts book I have it lists both but does not picture them so Iím not sure what kind of lock washers to use there.
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  #6   IP: 73.178.188.222
Old 04-01-2019, 12:50 PM
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no lock washers were used...just the flat copper.
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