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allerston
05-19-2010, 01:32 AM
Hi few days i noticed if i start the car hot or cold it takes about 3 seconds 4 the oil light to go out is this normal the oil level is at the full mark on the dip stick.thanks

sal_park
05-19-2010, 02:56 AM
Hi few days i noticed if i start the car hot or cold it takes about 3 seconds 4 the oil light to go out is this normal the oil level is at the full mark on the dip stick.thanks

Hi,

is the mileage in you sig correct ? 450,000 km ? (=280k miles)

if it is, then I'd say this is not an issue. I'd say with larger miles on an engine then the oil light being on during tick over is not a problem. If it comes on at any point with the engine running at over say 1500 rpm then I'd start to worry.

If you want you could get a pressure gauge fitted to supplement the light so you have a better idea of what oil pressure you do have.


hth

Sal

allerston
05-19-2010, 03:30 AM
Hi! The mileage is a little more than that now and the light never come on while the engine is running but i will try fitting a pressure gauge thanks

Blitzkrieg Bob
05-19-2010, 03:28 PM
what weight/grade of oil are you using.

It may be time to move up to a high mileage weight

allerston
05-20-2010, 12:14 AM
Castrol gtx 20 50

Blitzkrieg Bob
05-20-2010, 07:15 PM
Castrol gtx 20 50

Well, seems the right weight, so I would do as suggested at test it with a proper guage, then if all is well, maybe replace the sender and see if it was just lazy.

ArnZ!
05-20-2010, 08:23 PM
yeah it would be best to see the pressure with a real gauge. and then go from there. 450,000kms is already a lot of kms.

allerston
05-21-2010, 01:46 AM
I was told by a friend that if i fill some oil in the oil filter and in the oil filter housing it will solve the problem he said that mayb there is air trapped in the tube is this true

bsell
05-21-2010, 01:53 AM
I thought there was an anti-drainback valve in the oil filter assy...if that was stuck open, then the oil filter housing would be dry in the mornings and cause a long oil light on condition.

I looked on RealOEM and couldn't find a description for an anti-drainback valve. If memory serves, there have been discussions on this site about this issue.

Brian

allerston
05-21-2010, 02:55 AM
Yes there is a anti drainback valve but is it a good idea to put oil in the filter before replacing the filter what is meant by prime the oil filter i read that.:-)

Russell
05-21-2010, 07:26 AM
Don't think the filter has a drainback valve. However, I believe there is one in teh filter housing assembly.

Tiger
05-21-2010, 08:39 AM
I only know of the one in V8... Our E34 has a valve built in right into the filter. They later changed that in later model V8... with a black plastic valve... that can be retrofitted into early V8 engine... you simply push it in and use the later model filters.

Tiger
05-21-2010, 08:47 AM
Allerston engine use spin on filters... no alternative. Install a oil pressure gauge to read the actual pressur and then decide what you want to do.

ArnZ!
05-21-2010, 09:48 AM
the m20 uses a spin on filter. no filter housing here.

Blitzkrieg Bob
05-21-2010, 01:00 PM
Allerston engine use spin on filters... no alternative. Install a oil pressure gauge to read the actual pressur and then decide what you want to do.

Exactly!...the M20 uses a spin on filter and the air would be puhed out after installation and remain filled with oil until it is replaced....Remember the oil running down your arm when you take those off?