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Leaking rocker cover gasket 

14 replies to this topic

#1 JDM-RPS13

  • Joined:29-April 06
  • Location:Australia SA
  • Car:mx83 cressida

Posted 17 September 2007 - 03:35 PM

i originally replaced my rocker cover gasket as it was leakin oil out the side, on the side of the exhaust manifold, after replacing it, it stopped the leak, but after a short while i started to get a small leak at the front of the rocker cover, where the rubber plug part of the gasket is, on the right hand side of the cover, so i took it off again, cleaned off any crap that may have been caught in between the gasket and the engine, but still didnt fix it <_< is there some sort of extra sealant i should be putting in there when i put the rocker cover back on???

cheers ^_^

#2 Hawker180

  • Joined:26-June 05
  • Location:Australia VIC
  • Car:180sx + Landcruiser

Posted 17 September 2007 - 03:39 PM

you have to put that silicon gasket goo in the half moon's (two on the front and two on the rear)

this is the brand i use:
Posted Image

#3 JDM-RPS13

  • Joined:29-April 06
  • Location:Australia SA
  • Car:mx83 cressida

Posted 17 September 2007 - 03:48 PM

ahhhh, sweet, i thought i was missing something when it just kept leakin :lol: il go get some of that stuff this week, and hopefully third time lucky fixing the leak ^_^

#4 TEX

  • Joined:01-April 05
  • Location:Australia VIC
  • Car:S13 - FAST one!

Posted 17 September 2007 - 04:37 PM

I like the ultra black, just cause it blends in well.
Its a great product

#5 Tsmarlboro

  • Joined:19-April 06
  • Car:Nissan S13 SR20 DET

Posted 17 September 2007 - 04:56 PM

Love ultra black, used on thermo and water pump never had a problem since

#6 psykore

  • Joined:16-August 05
  • Location:Australia NSW
  • Car:180sx

Posted 17 September 2007 - 07:37 PM

Three Bond is good also, i use it on just about everyyything

#7 Whitie_Bear

  • Joined:01-June 06
  • Car:1991 180sx (summer) 1995 ford escort gt (winter)

Posted 18 September 2007 - 12:03 AM

i heard the ultra grey is the stuff you should always use as its resistant to petroleum products and is specified from the manufacturer....i met a nissan master tech from South Africa and he said that stuff is the most used tool he has for nissans, good for every damn seal on the car, but make sure its the ultra grey!!!


thanks for the tips on the half moons, so would i just put a thin bead on the half moons and then install the gasket? or do i put a small bead on the bottom and the top of the moons, or put the bead on the rocker cover and push the half moons onto it? (having the same problem)

#8 JDM-RPS13

  • Joined:29-April 06
  • Location:Australia SA
  • Car:mx83 cressida

Posted 18 September 2007 - 04:10 PM

im pretty sure youd put a small bead on the engine, where the half moons on the gasket sit, then tighten the rocker cover on so it fills the gap, can some one just confirm this??

#9 turbofan67

  • Joined:07-January 07
  • Location:Australia QLD
  • Car:1994 180sx

Posted 18 September 2007 - 04:53 PM

run a bead around the groove in the tappet cover,
seat the gasket into the sealant'
run a bead on the gasket and half moons, put it together and presto all sealed

P.S. all surfaces must be totally free of oil, or you're wasting your time.

#10 Whitie_Bear

  • Joined:01-June 06
  • Car:1991 180sx (summer) 1995 ford escort gt (winter)

Posted 19 September 2007 - 12:44 AM

ok ok, so i know this is annoying but i want to make 100% sure im doing this right

pull of rocker cover, rip out old gaskets

clean all surfaces with brake clean, ie the engine part and the rocker cover

run a bead in the groove of the rocker cover where the gasket goes for the whole rocker cover (and the spark plugs) this should be a very thin bead right?

put gasket into rocker cover squishing the ultra grey

now run a bead on the gasket that is stuck in the rocker cover (The bottom so when it touches the engine surface it seals) over the whole gasket (Spark plugs too) and then install rocker cover

is that how its done, so pretty much your making a gasket sandwich with ultra grey as the bread right, ultra grey in the grooves for the gaskets on the cover, and ultra grey on the bottom of the gasket (once gasket is placed into the rocker cover groove) and put on the car


right? or is that too much overkill with the ultra grey

(tappet cover confused me, does that mean rocker cover?)

#11 JDM-RPS13

  • Joined:29-April 06
  • Location:Australia SA
  • Car:mx83 cressida

Posted 19 September 2007 - 03:01 PM

yeah tappet cover is rocker cover, also thats probly over kill with the gasket goo, im pretty sure it just needs to be put inside the rocker cover, where the gasket sits, then on the half moons to make a better seal there between gasket and engine, but it dosnt need to be put on the gasket the whole way around as its rubber and will seal up pretty well anyways, thats what im going to be doing on the weekend anyways, will let yous know how i go :D

#12 turbofan67

  • Joined:07-January 07
  • Location:Australia QLD
  • Car:1994 180sx

Posted 19 September 2007 - 04:24 PM

Yeah I know it sounds like overkill, but there's allways going to be some little scratches
or marks on the top of the head that will let oil weep out.
And it's not long before the gasket gets a bit hard from all the heating and cooling.
In my experience they allways end up leaking if you don't put sealant on both sides of the gasket.

#13 JDM-RPS13

  • Joined:29-April 06
  • Location:Australia SA
  • Car:mx83 cressida

Posted 19 September 2007 - 10:27 PM

ah ok, i guess its better to do a little overkill then you wont have to keep resealing it when it leaks like iv had to do haha, cheers for the info man :yes:

#14 Bobo180sx

  • Joined:09-March 07
  • Car:200

Posted 19 September 2007 - 10:38 PM

i just used a bit of Loctite on mine, Good s*** :)

#15 Whitie_Bear

  • Joined:01-June 06
  • Car:1991 180sx (summer) 1995 ford escort gt (winter)

Posted 19 September 2007 - 11:39 PM

sweet thanks guys ill get it done!





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