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Strange sludge under front engine case. R51/3. Pictures.
- Micha
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Strange sludge under front engine case. R51/3. Pictures.
Any one has an idea where this sludge came from?
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R51/3 1952
Engine Nr. 529466
did you try with a magnet to
I would think that this is what you find in an engine which run with engine oil with no/little detergents. I assume you found the same in the oil pan. The white is interesting. In the old days, when you opened the oil cap of an engine and it was white, there was a good chance that there was water in the oil ... here it could be condensation water ...
How do the slinger look like?
my 2 cents
Klaus
- Micha
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BTW, I used SONOL oil (local
20W-50
API: SF/CD
MIL-L-46152B
Is it ok for my bike?
R51/3 1952
Engine Nr. 529466
- Micha
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I came back to update: I
I opened the drain plug and was horrified to see what was coming out of there. It wasn't oil. It was a viscous fluid that could barely get out.
It had a difficult time to drip out, in heavy long sludge drips. Like honey (or snot, forgive my French).
The magnet in the drain plug was free of metal dust.
My question: Is this a normal behavior of used oil that was sitting inside a disabled motor for 4-5 years?
Engine went through a re-bore with new pistons before I stopped riding it, and oil was changed once a year: First I used 40 oil and then, when it was difficult to find, I switched to the 20W-50.
Or is there maybe another problem?
R51/3 1952
Engine Nr. 529466
- schrader7032
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The API rating CD means that
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- Micha
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Oh no. Now I see what is
Now I see what is written on the oil canister: It is mentioned to be used in passenger cars with petrol and/or diesel motors
Well that explains a lot.
And the fact that the used oil was standing for 5 years has nothing to do with this strange phenomena?
R51/3 1952
Engine Nr. 529466
- schrader7032
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Well, standing for that long
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- schrader7032
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I would think that a gas
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.