Question about 1986 Mitsubishi Magna
Severe Oil leak From Rocker Cover area. New Seal and Rocker cover gaskets fitted. did not fix , is there a seal on the Cam shaft ? which would cause this problem
Posted by Anonymous on
Yes there is a seal on the cam shaft behind the water pump pully
undo that bolt
you have to undo the cam shaft to get to it .dont drop the lifters
19 nm for the can bearing bolts ..do not overtighten the two rocker cover bolts you can crack the rocker cover or split the cam bearing those bolts tight into
many say not to use silicon but because of the age of the car you need to use the blue silicone on the half moon the rocker gasket and the cam seal ..there are no online repair manuals for the tm-tp magnas ..the rocker covers can warp but rare
Posted on Sep 04, 2014
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Posted on Jan 02, 2017
The gaskets may not be at fault; the first time the valve cover was removed it was probably damaged by an impatient mechanic.
Most covers are sheet metal and the gaskets have an ugly tendency to get sticky over time making removal very difficult.
An inexperienced or sloppy mechanic can easy damage the edge of the cover causing a permanent distortion that a gasket replacement cannot correct.
I hope you have correctly identified the source of the leak since a warped cylinder head can also cause oil loss but that would be from the junction of the cylinder and block.
That would be much more expensive to correct than replacing a damaged valve cover.
Posted on Jun 21, 2008
SOURCE: evolution 7 bad oil leak
Not common, part is cheap, fix is easy. You will need a few basic hand tools a metal punch awl to remove old seal (like an ice pick) and soft faced hammer to drive the new seal in.
Posted on Oct 16, 2008
it could also be the oil pan gasket, or the manifold gasket. if it's the manifold gasket, when you remove the manifold to replace it, take the time to clean out the mixing chamber. it'll be filled with gunk and cleaning will improve gas mileage.
Posted on Dec 05, 2008
don't use 20w50 that is too heavy an oil for that motor. the most i would use is like a 10w40 and that is a last resort. your valves need adjusting or the hydraulic lash adjusters may be gunked up. there is a chemical called auto-rx (search web) that could help you out. just follow the directions for it. the only other oil seals i can think of are oil pan gasket, oil filter gasket, rear main seal, valve cover gasket.
Posted on May 30, 2009
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