GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

How to Change Valve Cover Gasket 98 GS-300

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Old 06-05-12, 06:10 PM
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Mick2
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Default How to Change Valve Cover Gasket 98 GS-300

I know how to take the top of the engine off enough to change the spark plugs but the intake manifold appears to have to be removed to be able to remove the valve cover. The manifold looks like it can be split into two parts but I can't tell if I have to remove the entire manifold or can I split it and remove the section that overhand the valve cover?
If so, is there a gasket required?
Any special tools required and is there anything other than just the valve cover gasket required to do this? Thanks.
Old 09-04-13, 11:01 AM
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j.tom
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Need to know the same thing,Mine is 2001 GS300...THANKS!
Old 09-04-13, 11:27 AM
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wbmx1981
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Originally Posted by Mick2
I know how to take the top of the engine off enough to change the spark plugs but the intake manifold appears to have to be removed to be able to remove the valve cover. The manifold looks like it can be split into two parts but I can't tell if I have to remove the entire manifold or can I split it and remove the section that overhand the valve cover?
If so, is there a gasket required?
Any special tools required and is there anything other than just the valve cover gasket required to do this? Thanks.
GS 300 and the IS300 have the same 2JZGE engine. Follow this video for the win.

Old 09-04-13, 12:30 PM
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j.tom
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Hey wbmx1981.....THANKS!
Old 09-04-13, 12:41 PM
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wbmx1981
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Originally Posted by j.tom
Hey wbmx1981.....THANKS!
Welcome! Its fairly straight forward it just takes patience.The thing that gave me a hard time was the evap hoses were hard and very brittle becareful because they will snap. I ended up breaking two, I used silicone to fix it, so BE CAREFUL! Make sure all the hoses are all connected back. I left the radiator hoses that clips under the intake unplugged and my car overheated. I realized what I did and replenished my lost coolant, no more issues. Good Luck. No more leaky gaskets!
Old 09-05-13, 08:50 PM
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Mick2
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Thanks very much for posting the video. This helps a lot as I wasn't sure about how to pull the left valve cover off.
Old 09-06-13, 09:17 AM
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wbmx1981
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Originally Posted by Mick2
Thanks very much for posting the video. This helps a lot as I wasn't sure about how to pull the left valve cover off.
Glad it worked for you!
Old 05-10-15, 10:26 AM
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CooleySc30
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i saw the video but dosent he just do the exhaust side I wanna do the whole thing I need to do the intake side I just wanna know if I have to remove the half of the manifold that is over the valve cover or if I can finesse it in and out of place
Old 05-10-15, 02:09 PM
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yes remove the two halves of the menifold its simple and shouldnt be holding you up, just remove it for you are going to be spending some quality time in there making sure that surface is free of ALL remaining gasket and before you apply any FIPG your going to take rubbing alcohol cleaning all contact surface areas so there is absolutely no trace of any oils. I personally use lots of gasoline (a rag soaked not pouring it everywhere) to help remove all of the past gasket/grime/sludge BUT!! remember gas has oil in it and will cause you a leak if not removed with rubbin alcohol or carb cleaner.... just get the job done. hope your replacing your cam seals would be very foolish if you werent.
Old 05-10-15, 03:09 PM
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Lukas99GS
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The valve cover on the passenger side isn't too bad but there's a bolt on the manifold that's really tough to access, I couldn't get to it.
Here's a different video, he points the bolt out at 2:41
Old 05-28-15, 04:41 PM
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Mcon
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I know this thread is just a little old. LOL But is good to know how this work. :-)
Old 05-28-15, 08:21 PM
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I wouldent have been able to do it without the video. GL man
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