valve - oil release

Post by **Johannes** » Wed Aug 16, 2006 4:27 pm

Hello to England,

i have to fit a new valve (oil release) and a new oil pressure switch,
the switch is no problem just behind the distributor, but the valve -
i have no idea where to find it.
sorry for my bad english (i have to learn it better)
it is a 1098 engine.
:D :D
cheers
Johannes

PS.:
without the polite help of all the Minor-Friends in UK - it would be much harder to restore my Minor -thanks to you!!

Post by **rayofleamington** » Wed Aug 16, 2006 6:15 pm

The pressure releif valve is next to the pressure switch - you will see a big hexagonal head sitting there - the valve is underneath.
Normally you only change the spring (if it is too short)

Post by **bmcecosse** » Wed Aug 16, 2006 7:24 pm

Change the 'bullet' too - it gets scored and can start to wedge in the port. But why are you changing these things - do you have low oil pressure problems ?

Post by **Onne** » Wed Aug 16, 2006 7:33 pm

See also General Discussion

Post by **Johannes** » Thu Aug 17, 2006 3:45 pm

Hello,

that is exactly my probleme, the enginge is in good condition, but sometimes the orange light for low oilpressure starts to light up a little bit
that makes me a little crazy - so i think it only a problem with the relief valve or the switch. Normally if the engine dies, the light becomes orange - full light - but my light becomes only a little bit orange. So i will
start to repait with the switch + releif valve-
Oh sorry - my english - i think it sound like kiasuheli for you.

Best regards
Johannes

Post by **Willie** » Thu Aug 17, 2006 4:33 pm

The length of the oil pressure relief spring should be exactly 72.63mm. Do
NOT stretch it any longer. The most common cause of a flickering oil light
on a decent engine is a faulty pressure switch which ,happily, is the easiest
item to change.

Post by **ian-s** » Thu Aug 17, 2006 5:39 pm

It's very unlikely to be the pressure relief spring as this lets the oil run straight back into the sump whenever the pressure exceeds the setting ( regardless of engine revs) . The only possible problem with the pressure relief could be a stuck 'bullet' due to swarf etc . most likely is the switch or you have genuine low oil pressure when ticking over which won't be solved without an engine rebuild.

Post by **bmcecosse** » Thu Aug 17, 2006 10:31 pm

Just change the switch - if the light is still coming on make sure you have 20W50 oil - and lift the idle speed slightly! Don't worry about the relief valve - it's not that. There is a second light for blocked oil filter - also orange - are you sure it's not that light ?? If so - oil and filter change required - good idea anyway!