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420A Valve cover gasket

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James_74

Probationary Member
10
0
May 4, 2015
Enfeild, New_Hampshire
I have changed my valve cover gasket twice and it is still leaking. Has any one else had this problem? Is there a solution for it? The motor is a 420a.
 
Yea it's leaking out the back side and the front side the bolts a all tight
 
You are supposed to use rtv on every curved edge
 
i've tried RTV and still had leaks in the curves at the cam gears. Does black or blue RTV work any better than the other?
 
I have never tried the blue RTV but I have never had a problem with the black stuff.
 
Have a 97 gst 4g63
I've replaced gasket and oil cap. But I still find oil on top of the valve cover!
You might need to do some mods LOL mine will never leak from cap again
 

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