Confirm/Identify source of front engine 0il leak - BMW Luxury Touring Community
 
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post #1 of 11 Old Apr 25th, 2014, 11:13 am Thread Starter
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Confirm/Identify source of front engine 0il leak

Hello, Based on these photos, I am guessing the leak source is the timing chain cover, as the oil appears above the water/oil pump. Am I correct on this assumption? Any other possibilities? Thanks for your response.
Doug
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post #2 of 11 Old Apr 25th, 2014, 11:20 am
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Re: Confirm/Identify source of front engine 0il leak

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Hello, Based on these photos, I am guessing the leak source is the timing chain cover, as the oil appears above the water/oil pump. Am I correct on this assumption? Any other possibilities? Thanks for your response.
Doug
Seems like that but I would wash it and let run / drove few miles to confirm the source before starting anything.

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post #3 of 11 Old Apr 25th, 2014, 1:20 pm
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Re: Confirm/Identify source of front engine 0il leak

+1 What C-A-D says. Really easy to do and you need to clean it up anyway before opening it up. No gasket just sealant IF that is where the leak is coming from.

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post #4 of 11 Old Apr 25th, 2014, 1:49 pm Thread Starter
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Re: Confirm/Identify source of front engine 0il leak

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+1 What C-A-D says. Really easy to do and you need to clean it up anyway before opening it up. No gasket just sealant IF that is where the leak is coming from.
Thanks for the replies. What sealant would you recomend for this application?
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post #5 of 11 Old Apr 25th, 2014, 3:57 pm
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Re: Confirm/Identify source of front engine 0il leak

Might try Honda Bond HT high temp silicone gasket , need to let set over night before running bike.


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post #6 of 11 Old Apr 25th, 2014, 8:34 pm
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Re: Confirm/Identify source of front engine 0il leak

That was a common leak in the early LT's. Seems the machining of the covers did not always get the surface flat.

I used Permatex Ultra Black. No need to let it set long before running engine.

Pulling the cover is not a trivial task, as the radiators have to be loosened and moved forward, and the wires to the temp and oil pressure sensors removed from the sensors and threaded through the cover opening. I found it easier to remove the wire connections in the electrical box, as these connections are smaller then the ones on the sensors.

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post #7 of 11 Old Apr 26th, 2014, 6:05 am
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Re: Confirm/Identify source of front engine 0il leak

+1 as mentioned ,I would take a shot at retorquing the cover allen bolts. You may get lucky and perhaps the leak is not as bad as it seems.

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post #8 of 11 Old Apr 26th, 2014, 8:51 am
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Re: Confirm/Identify source of front engine 0il leak

+1 on the above.

If you end up struggling to find the source after a clean up, run and visual inspection, you can get a dye kit from Autozone. You add a small amount of dye to the oil, run the engine and start inspecting with the UV light. Might help make it easier to see.

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post #9 of 11 Old Apr 29th, 2014, 8:44 am Thread Starter
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Re: **UPDATE** Confirm/Identify source of front engine 0il leak

I have located the source of oil leak. It appears to be from the channel where the 2 sensor wires emerge from the bottom of the timimng chain cover. Can this be repaired with applying new sealant or is something else involved? Thanks again.
Doug
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post #10 of 11 Old Apr 29th, 2014, 9:07 am
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Re: Confirm/Identify source of front engine 0il leak

That may very well be the front crankshaft seal located in the timing cover. Involves removing the timing cover and not an easy seal to set properly.

Cover must be removed to drive out the seal then install the cover and use special tools to drive in the seal.

But I would still clean the area up to be sure.

John
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post #11 of 11 Old Apr 29th, 2014, 8:41 pm
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Re: Confirm/Identify source of front engine 0il leak

I agree that it could be the front oil seal. You can check that though by removing the small cover over the ignition timing cavity to see if there is oil in that area. If so, it is the oil seal. If you see that the seal is not leaking, then it is likely the timing cover sealant that is leaking.

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