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Bad Oil Leak

Old 11-12-2007, 07:42 PM
Join Date: Jun 2007
Posts: 131
Default RE: Bad Oil Leak

The puddle is on the valve cover? When you changed the gasket did you also change the tube seals? The upper seals are obvious but there are o-rings that go on the bottom of the tubes; you have to remove the camshaft to replace them and they are probably the ones that are leaking. If you did replace the lowers then you should have also replaced the cam seal. When the cam seal leaks there will be lots of oil around the timing cover and, most notably, on the small ledge right behind the cover.

I learned the hard way...

Old 11-12-2007, 09:14 PM
JimBlake's Avatar
Super Moderator
Join Date: May 2006
Location: Wisconsin
Posts: 17,414
Default RE: Bad Oil Leak

What about oil down in the spark plug tubes? It seems like leaky spark plug tube seals aren't going to put oil on the timing cover.

Look somewhere else for the leak. What about the camshaft seal? Balance shaft seals? Or what about the gasket on the oil fill cap?
Old 11-13-2007, 06:26 AM
Join Date: Jun 2007
Posts: 131
Default RE: Bad Oil Leak

ORIGINAL: islami22

i was changin my spark plug wires the other day and noticed a good amount of oil in the same area and all over the spark plug boots...white95, is it necessary to take out the camshaft to replace those o rings?
Yes. And you'll want to replace the cam seal also or else you'll have a bigger leak to deal with. You should probably replace the distributor o-ring as well.
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