Oil on the floor, again!

Lassenc · Post by **Lassenc** » Sat Aug 04, 2007 5:31 pm

Hello!

After coming home from vacation, the bike has been standing still for two weeks, and emptied half of the oil on the floor.

Originally I thought this was due to the chaincase, but as there isn't any oil in there at the moment, it can only be from the engine.

It is a bit soiled underneath the engine, and "drips" forming around, and drips from the breatherpipe.

I had the oilpump refurbished with a layer of hardchrome reamed down to the hole in my crankcase, but still!

What can I do?

The bike is a Model 18 '53

Regards, LasseEdited by - Lassenc on 13 Aug 2007 10:05:00 PM

bag-o-nails · Post by **bag-o-nails** » Sun Aug 05, 2007 9:45 am

Hello Lasse
dig out the april issue of jampot mag on page 12 neil cairn's 18's had a severe oil leak with a simple cure!! could be the same thing
cheers
b-o-n

Lassenc · Post by **Lassenc** » Sun Aug 05, 2007 12:37 pm

In my April issue there is something with Bill Brown Thirty Years Behind the Marque

bag-o-nails · Post by **bag-o-nails** » Mon Aug 06, 2007 1:00 am

sorry mate i meant april 2006
if you don't have one i can copy it and send it
via a pm
cheers b-o-n

Don Madden · Post by **Don Madden** » Mon Aug 06, 2007 3:18 am

The referenced article describes an obscure source of an oil leak. The oil lines were very old & cracks developed. As they are under the gearbox they are hard to inspect. New oil lines solved the problem.

It is a tip well worth checking out.

Cheers, Don.

Lassenc · Post by **Lassenc** » Wed Aug 08, 2007 5:48 pm

Mine are made of metal, and I haven't noticed any leaks from there.

It's a thorn in my side, really!

bag-o-nails · Post by **bag-o-nails** » Wed Aug 08, 2007 10:01 pm

Ah Well what a pain did you manage to ascertain engine oil or gear box? apparently
smells like cats pee!! let us know if you get it
sorted cheers
b-o-nails

Lassenc · Post by **Lassenc** » Thu Aug 09, 2007 2:15 pm

Ascertain?

Well, oil was on the floor, and oiltank half empty, so I guess it can't be the gearbox

bag-o-nails · Post by **bag-o-nails** » Fri Aug 10, 2007 10:18 am

yes Ascertain
i cant see it from here chaincase oil is usally
whiteish when it comes out,engine oil black from carbon,gear box cats pee!!
try e-mailing neil cairns he is in members, it was his bike the article was on, the oil lines
were cracked but he could not see that untill
they were off the bike.
CHEERS B-O-NAILS

Biscuit · Post by **Biscuit** » Fri Aug 10, 2007 11:14 am

Only EP oils smell of cat's pee, and I don't think Lasse has this in his gearbox.

Unless he has been careless with the hosepipe, oil from pressed steel chaincases will not be white, aluminium alloy probably, due to condensation.

Apart from turning down chrome plated sockets, I have little experience of machining chrome, It's blooming hard. I can't quite see that reaming a hard chromed bore would be successful. Was the pump plunger a good fit after this treatment? You say there was no oil in the chaincase, is there oil now?