Oil seeping into crankcase sump

Information relating to the Matchless G3 or AJS Model 16 350cc Heavyweight
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vagapete
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Joined: Mon Oct 24, 2005 10:41 pm
Location: ISLE OF MAN UK

Oil seeping into crankcase sump

Post by vagapete »

Hi,

While I've been away on a trip for nine months, my 16MS 350cc has been patiently waiting in my garage for me. However, during my nine months absence, about half a pint (300ml) of engine oil has steadily dripped from the oil tank into the crankcase sump. Not that it's a major problem, as once drained everything seems fine, but is this something that anyone else has experienced when leaving their bike for an extended period.

Peter.
leswaller
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Re: Oil seeping into crankcase sump

Post by leswaller »

This is very common, search the threads on wet sumping
Les
Rules are for the obedience of fools and the guidance of the wise
vagapete
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Joined: Mon Oct 24, 2005 10:41 pm
Location: ISLE OF MAN UK

Re: Oil seeping into crankcase sump

Post by vagapete »

Thanks Les.
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clive
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Re: Oil seeping into crankcase sump

Post by clive »

I would not even call that wet sumping it's only just over 1ml a day. There is many a twin owner who would love to have that rate of flow. My 500 single completely emptied it's tank when left standing unused, but I did leave it for 8 years! :rofl:
clive
if it ain't broke don't fix
G15 Roy
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Re: Oil seeping into crankcase sump

Post by G15 Roy »

clive wrote:I would not even call that wet sumping it's only just over 1ml a day. There is many a twin owner who would love to have that rate of flow. My 500 single completely emptied it's tank when left standing unused, but I did leave it for 8 years! :rofl:
Did i get any oil when I bought the bike ;)
Roy
vagapete
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Re: Oil seeping into crankcase sump

Post by vagapete »

It is only a small amount, possibly caused by the tank being above the pump. Just thought I'd check in case there's another reason, but I'm happy enough as it is.
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clive
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Re: Oil seeping into crankcase sump

Post by clive »

G15 Roy wrote:
clive wrote:I would not even call that wet sumping it's only just over 1ml a day. There is many a twin owner who would love to have that rate of flow. My 500 single completely emptied it's tank when left standing unused, but I did leave it for 8 years! :rofl:
Did i get any oil when I bought the bike ;)
Of course Roy, I just drained it from the sump and put it back in the tank for you!
clive
if it ain't broke don't fix
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