I've noticed a pretty good number of oil drops on the rear decklid. I checked and tightened the valve covers and the oil sending unit seems not to leak. Where else would the oil come from to end up on the decklid?
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The vent on top of the trans.
quote:
Originally posted by rudy123395:
I've noticed a pretty good number of oil drops on the rear decklid. I checked and tightened the valve covers and the oil sending unit seems not to leak. Where else would the oil come from to end up on the decklid?
Are you talking about oil on the underside of the deck lid or on the outside top of the lid?
Are you sure it is oil? I had grease spots on the underside of my decklid after greasing the U-joints.
Sorry, it's the top of the decklid.
Rudy, mine does the same. I have a slight front seal leak but am uncertain thats the cause. I'll be investigating soon and will let you know what I find. Do you also have the spray on back window?
Oil on the rear window or the top of the decklid can be from any of a number of choices including the front main seal, rocker cover gasketss, a loose dipstick tube in the extreme front of the block, a leaky pan gasket or loose pan bolts in front, etc etc. The normal airflow is mostly from under the car, up past the motor and out the rear window opening, due to the huge low-pressure area this decklid configuration makes. Some airflow obviously makes it all the way under & out the rear. At higher rpms, the most likely source is blow-by forcing oil out the front seal or the breather grommets; my best guess.....
Interestingly, there doesn't seem to be any oil on the rear window.
Had the identical problem. Nice clean engine oil for sure. Fine spray on window followed by light spray on both sides of engine bay. Some oil collected in channel on rear facing outside corners of valve covers. Checked valve cover breathers (negative), went through everything under and in front of engine (all bone dry). Problem disappeared after a few drives. Only thing I can think of that makes sense would be new valve cover gaskets seating. Could it have been overfilled with oil? What else?
My problem turned out to be dipstick lacked being fully seated by about an inch. Thanks for the advice Jack!
I had a simular problem and found the dowel pins that locate the metal pan gasket to the heads were missing, after replacing these pins the oil spray problem went away. Hope this helps.