Triumph Trident T150 Oil Overflow

Bike hasn't run in a year. Before I started I checked the oil level and
it was low, so I filled it to the mark, started bike and ran it for 5
mins. Then it started leaking oil out of the filler cap of the oil
tank. I thought maybe the oil tank filter was clogged, so I drained the
oil tank, cleaned the filter, and filled the tank with fresh oil.
Started bike up, and ran it for 10 mins...and it started to overflow
through the cap again.

Any ideas??

 

Yes look in uk.rec.motorcycles where this has already been answered.

 

I would take the filter off the bottom of the centre crankcase, and
make sure there is not an excessive amount of oil in the cases. If
there is then this will cause you problem you are having, and it may
well be ok after you drain the excess oil, clean the filter screen, put
it back together and try again.

k

 

Thus spake () unto the assembled multitudes:

It's an old Triumph; they have to leak oil from *somewhere*. It's
traditional, ennit? ;-)

 

I know its against the rules but here is a helpful answer.

triumph oil pumps are crap and leak down - the oil goes into the sump.
you top up the tank, start the engine and the pump then empties the sump
content back into to the tank. too much oil = mess.

always check oil leve lafter running the engine for a bit.

 

I answered the OP yesterday..............the plunger type pumps fitted
to Triiumph twins are generally pretty trouble free, but I would agree
that the gear pumps on the triples leave a lot to desired, and must be
replaced when motors are rebuilt to ensure good oil
pressure.....................and of course prevent centre rod bearing
failure, and major engine damage.

k

 

It hardly seems fair to pick on triumphs. Most British dry sump
bikes suffered from this if left standing. As they got older the
non-return valves start sticking open.

Ken Young

 

A brit Iron without oil on the ground when you stop ain't
a,"Brit-Iron"

 

I always thought that this was a clear sign that something needed
topping up.

 

Best turn up the snotoiler on the Bonnevile then

 

Timo Geusch wrote

Only when the puddle stops growing, until then there is obviously
plenty.

 

Heh.heh