Tweet
What would cause my 604 to have oil coming from valve cover breathers?
-
-
blow by, caused by worn rings -
blow by is 1 cause but before you condem your engine ----check that the oil is not over full
overfilling will cause the oil to overheat and and also will rob power and can definatly push oil out the breathers
Brad
below is copied from our website under the FAQ tab
1. Proper Oil Level for GM 604/602
With the use of more expensive and exotic oils some racers have a false sense of security and do not check oil on a regular basis. This is a dangerous practice and it is stongly recommended to put the following procedure into your weekly maintenance schedule or pre-race prep.
1) Using the oil level inspection plug located on the left side of the 604 oil pan —make sure you can see that oil is near the hole.
2) Reasonably level the engine front to rear and side to side
3) Warm the engine to operating temperature
4) With the engine level, warmed up, and running at idle remove the oil level inspection plug and measure oil level.
We recommend the level to be 3/8 to 5/8 of an inch below the female threads of the inspection hole.Comment
Comment