The 75 and ZT Owners Club Forums - View Single Post

SD1too · 11th May 2019, 15:45

Hi Martin,

My first thought is, have you considered a faulty oil cooler?

You said you were away before noticing mayo under the oil filler cap. How long have you been away and how much mayo is there? Could it be the result of condensation forming over a period when the car lay idle?

Regarding head gasket type, the KV6 uses only MLS. The elastomer type applies to the four cylinder K series.

If I were you I wouldn't embark on any major work until you have a positive diagnosis. For example, either temporarily by-pass the oil cooler or remove the RH bank cam cover to check for mayo there.

If you do decide to lift a cylinder head then the inlet camshaft sprocket wheel will have to be loosened in order properly to refit the timing belt so your second question therefore doesn't arise.

Simon

11th May 2019, 15:45	#3
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,344 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Hi Martin, My first thought is, have you considered a faulty oil cooler? You said you were away before noticing mayo under the oil filler cap. How long have you been away and how much mayo is there? Could it be the result of condensation forming over a period when the car lay idle? Regarding head gasket type, the KV6 uses only MLS. The elastomer type applies to the four cylinder K series. If I were you I wouldn't embark on any major work until you have a positive diagnosis. For example, either temporarily by-pass the oil cooler or remove the RH bank cam cover to check for mayo there. If you do decide to lift a cylinder head then the inlet camshaft sprocket wheel will have to be loosened in order properly to refit the timing belt so your second question therefore doesn't arise. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.