Green sludge in oil cap. Timing cover? or slipped liner?

jastutte

Well-known member
Nov 10, 2009
468
75
Just had the head gaskets done 100 miles ago. I noticed the other day that my temps were starting to swing a little bit. Seeing the expansion tank was low, I bled the system again. Truck ran noticeably cooler and temps were consistent.

Couple of days later, same thing. temps started to fluctuate via UltraGauge. Checked the coolant tank and it was low again.

Hoses were not hard. Coolant did not smell like oil or exhaust. Checked the oil filler cap and there was green sludge.

Took it back to my shop and they are saying it is possibly a slipped liner. They are a good shop but not rover specific. So, from my reading here and elsewhere this sounds more like a front cover issue not slipped liners.

Wouldn't I be getting other symptoms with a slipped liner? Knocking, ticking and misfires?

Truck is running strong and I usually drive 100 miles or so per day in it. Not a lot short trips.

Forgot to mention that I did the water pump as well.

Thanks,
 
Last edited:

Howski

Well-known member
Oct 19, 2009
1,499
213
Alabama
Certainly sounds like the front cover issue I had a few years back. A lot of times you'll spring a leak at the next weakest point in the coolant system after fixing a leak - headgaskets in your case.
 

jastutte

Well-known member
Nov 10, 2009
468
75
Certainly sounds like the front cover issue I had a few years back. A lot of times you'll spring a leak at the next weakest point in the coolant system after fixing a leak - headgaskets in your case.


It was the front cover.

Replaced and all is good for now.