I got a scare today found a milkshake oil dropping
03-03-2010, 06:51 PM
#1
Race Car
Thread Starter
I got a scare today found a milkshake oil dropping
I got a scare today, went for a drive under full boost to dial in my Adjustable Maf. This was one of three runs, I parked the car in the garage, but on the third run I placed it on the lift. When I walked back I found a milkshake looking oil dropping on the floor along with another spot of oil. The car is running good but panic mode hit, visions of pulling the motor after just painting my front clip.
Well what I found was not an issue, I have the intake vented to the air with an old fashioned breather filter. It seems like moisture must be leaving the motor and out the hose. I did check the oil and is fine so it is not a head gasket problem.
The oil leak is a little hard to trace down. The leak I believe is coming from the oil dip stick but not sure, in the 86 the dip stick just sets in place without a clamp to hold it down. I could see the o-ring so I think it lifting under boost.
Any feedback on this while I sit down and catch my breath.
Well what I found was not an issue, I have the intake vented to the air with an old fashioned breather filter. It seems like moisture must be leaving the motor and out the hose. I did check the oil and is fine so it is not a head gasket problem.
The oil leak is a little hard to trace down. The leak I believe is coming from the oil dip stick but not sure, in the 86 the dip stick just sets in place without a clamp to hold it down. I could see the o-ring so I think it lifting under boost.
Any feedback on this while I sit down and catch my breath.
03-03-2010, 07:35 PM
#3
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Mark,
On a SC'd car, the crankcase will be additionally pressurized from blowby unless it is properly vented.....
We discussed this on the phone a while ago when you were curious about my setup.. Maybe you forgot..?
Unless this is addressed, everytime you go positive pressure in the system, the oil and vapour will need to go somewhere from the crankcase...
Just my $0.02
On a SC'd car, the crankcase will be additionally pressurized from blowby unless it is properly vented.....
We discussed this on the phone a while ago when you were curious about my setup.. Maybe you forgot..?
Unless this is addressed, everytime you go positive pressure in the system, the oil and vapour will need to go somewhere from the crankcase...
Just my $0.02
03-03-2010, 07:54 PM
#4
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There is ALWAYS some blowby on any piston engine.....what gets past the rings is mostly exhaust gases of which steam is a large part as it cools down it becomes water. As mentioned boost with the resulting higher cylinder pressure tends to make it "leak" more.
03-03-2010, 08:36 PM
#6
Race Car
Thread Starter
I remember our conversation about increasing boost and the venting required, since I have not added any additional boost I have not not changed anything.
I'm running around 5 Lbs blow by is minimal at this level. I just repainted my intake and not a drop of oil was in the intake. I had more before the S/C was installed the venting I'm using must be doing the trick. The weather has been cold lately in Florida and the short drives must have added to the moisture build up "I hope"!
I'm running around 5 Lbs blow by is minimal at this level. I just repainted my intake and not a drop of oil was in the intake. I had more before the S/C was installed the venting I'm using must be doing the trick. The weather has been cold lately in Florida and the short drives must have added to the moisture build up "I hope"!
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03-03-2010, 10:27 PM
#9
Former Vendor
You are being very positive. We will all hope you are correct, but I'm guessing there wll be more to this story.
