oil on top of engine

V
2003 Mazda Protege5
The valve cover gasket is really simple to replace if you have to go that route.
 
Last edited:

pcb

The Diagram Dude
V
2002 mazda protege 5
I don't recall any broken/cracked valve covers, just the gasket and/or the grommets get old, crack and leak.

The gasket can be a PITA because you have to use silicone.
If you don't use any or enough, it will leak.
If you use too much, it can goop out on the inside then break off and sent a blood clot down the pipe.
(blob of silicone rubber plugin up an oil passage)


 

pcb

The Diagram Dude
V
2002 mazda protege 5
You have to follow the tightening order or your gasket will go on off-kilter and not seal properly.

My parts car had two broken valve cover bolts and my DD had one broken bolt when I got them.

It's really easy to strip/snap those bolts.

These are in inch/pounds...







The metal tubes, are part of the grommet, that's what you are tightening up to, not the gasket. That prevents you from squashing the gasket.





You're only snugging up to the metal sleeve.
 

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