951 getting oil in coolant

BikeDewd · 08-27-2003, 09:42 AM

Well....it appears that my 1986 951 is starting to get some oil in the coolant. It is not a head gasket -- the coolant level is staying consistant -- and I am prepared to replace the seals in my oil cooler. Has anyone on the list done this on a 951 before? I have checked the procedure and it seems fairly straight-forward, but I have a few questions:

Is it necessary to remove the exhaust header?
What parts do I need?
How long did it take you?
So far, it seems to be a small amount of oil. Anyone care to guess how long it will take to get worse?

Thanks in advance for any help!

SoCal Driver · SoCal Driver's Garage

Could also be the seals in the turbo charger. Two places that the oil and coolent come together.

It can only get worse and you will spin a rod bearing and/or main.

BikeDewd · 08-27-2003, 10:10 AM

Thanks for your reply. However, out of all the resources I have checked, none have mentioned oil/water contamination from the turbo -- only the oil cooler or head gasket. As I mentioned, I am prepared to replace the oil cooler seals and if this does not solve the problem I'll look elswhere.

As far as spinning a rod and/or main bearing -- I don't buy that. I am not getting any water in my oil and the level is fine. I check it daily. So far, it is just a tiny amount of oil in the water, but I want to fix it before it gets much worse. I know that it won't cure itself -- just wanted to hear from someone who has been down this road before.

______________________

Jay

1986 951 Turbo Black/Black

SoCal Driver · SoCal Driver's Garage

It's not oil contamination that helps to do the rod and/or mains in. It's the over heating of the oil because of the muck from the oil in the coolent that helps to do the rod and/or the mains in.

The turbo charger does have both oil and coolent next to each other and has in the past been a source for the cross contamination.

However the most likely is the seals in the oil cooler directly.

924Sman · 08-28-2003, 05:46 AM

Jay, As Socal said it WILL in time take out the bearings! And the turbo has to be cooled some how therefore he is correct on the turbo as well. The other thing that will happen is the hoses when contaminated by oil will swell up and break so a good cleaning of the hoses or just replace them all is needed. As for as the manifold goes, yes you need to atleast unbolt and move back out of the way but doesn't need to be completely removed. Un bolt the pipes at the end of the headers as well and lower the exhaust or let it hang loose with support. Heat shields need removed. PS belt should be moved. You will also need a OPV alignment guide tool to insure proper valve alignment to the housing. Some have done this without the tool but depending on your mechanical skills I would use the tool to be sure! The entire system will need as many flushings needed to rid the oil. Clean every last component. The job should take about 3 to 4 hours more or less depending on your abilities. The only parts you need are the oil cooler kit. Sman