sludge under the oil fill cap
#1
Race Car
Thread Starter
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what is this crap? is it normal? i know you can get the dreaded milkshake of death on it should you blow a head gasket. but what would that look like? what color and what texture?
i'm going to change the oil this weekend and see if everything checks out ok, but i was concerned i may have an unexpected surprise. what would the other symptoms be of a blown hg?
sorry, no pics. wiped the dried gunk off and checked the oil level, seemed ok.
i'm going to change the oil this weekend and see if everything checks out ok, but i was concerned i may have an unexpected surprise. what would the other symptoms be of a blown hg?
sorry, no pics. wiped the dried gunk off and checked the oil level, seemed ok.
#4
Instructor
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I had a similar issue - always had some water accumulation on the oil filler cap. I went through the whole process of changing out seals and getting retrofit/updated parts for the oil cooler housing, changing the head gasket, all to no avail.
Turned out to be a simple fix – was caused by an aftermarket ‘cooler’ radiator fan switch ... the oil was never getting hot enough to burn the water off. I only discovered this after my old fan switch broke and I needed to replace.
Anyway, I'd advise you to check to see that your thermal fan switch is the correct (stock) version and not a 'cooler' one and see if this corrects the problem.
In the interests of full disclosure, I guess I should admit that I live in Seattle
... lots of water vapor about.
Turned out to be a simple fix – was caused by an aftermarket ‘cooler’ radiator fan switch ... the oil was never getting hot enough to burn the water off. I only discovered this after my old fan switch broke and I needed to replace.
Anyway, I'd advise you to check to see that your thermal fan switch is the correct (stock) version and not a 'cooler' one and see if this corrects the problem.
In the interests of full disclosure, I guess I should admit that I live in Seattle
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