GS400 Valve Cover Gasket Replacement - Need Some Help!
#16
Lexus Test Driver
iTrader: (22)
The valve cover on the GS400 is somewhat similar to a 92-95 honda civic. They both got 4 prongs that holds the spark plug O-rings. You must be careful when bending the prongs or they might break. Removing the O-ring is the next worse nightmare. Takes alot of patience. You would need a really thin and small flathead screw driver to pry it out. Most likely in the end, you will be damaging the O-ring in the end but you are gonna replace it anyways. Great job on the job and post, starfyrels.
#17
^ Yeah, agree with that.
It was hard work but clean driveway = win.
I wish I could have taken pics and done a complete how to but I'll start posting a small DIY when I get a chance in between my house, work, the gf, and a couple small projects for some members and myself.
It was hard work but clean driveway = win.
I wish I could have taken pics and done a complete how to but I'll start posting a small DIY when I get a chance in between my house, work, the gf, and a couple small projects for some members and myself.
#20
Lexus Fanatic
iTrader: (2)
If you have a trace of oil on your spark plugs, worn tube seals are most likely the cause. These seals are made out of rubber and will wear in time. These seals do not last forever folks. Everyone will have to replace these considering the age of these cars and the constant hot & cold starts.
#22
The seals DO have a spring or metal piece inside of them.
Its a coiled piece of metal, rounded -- i guess you would say its a spring but it also doesn't retain its rounded shape if you somehow bend the tube seal out of round.
Viton = Moneyyyy
Its a coiled piece of metal, rounded -- i guess you would say its a spring but it also doesn't retain its rounded shape if you somehow bend the tube seal out of round.
Viton = Moneyyyy
#28
Dont have pics, but If you're doing the driver side just remove all hoses and everything from the cover, then pull out the 4 coil packs, no need to remove the spark plugs.
Next there are a few bolts all around the cover, you'll need to really get a bendable wrench in there or a mini wrench.
Next thing to do is to pull the cover off; pull out the old gasket and clean the valve cover, then place the new gasket in.
To change out the spark plug seals you need a skinny screw driver an a small hammer or a nice screwdriver at least something strong. Maybe a pick and awl or something. There are three tabs; try to Jimmy them up a bit, pull out the old gasket/ring and then place the new one in -- try to make note of how it is removed/installed.
Then replace everything.
Some people say to do the journal caps once you are in there but if its not leaking (towards the rear of the engine block, you have to feel for it but you might be able to see it.
After that, replace everything and hope for the best.
Next there are a few bolts all around the cover, you'll need to really get a bendable wrench in there or a mini wrench.
Next thing to do is to pull the cover off; pull out the old gasket and clean the valve cover, then place the new gasket in.
To change out the spark plug seals you need a skinny screw driver an a small hammer or a nice screwdriver at least something strong. Maybe a pick and awl or something. There are three tabs; try to Jimmy them up a bit, pull out the old gasket/ring and then place the new one in -- try to make note of how it is removed/installed.
Then replace everything.
Some people say to do the journal caps once you are in there but if its not leaking (towards the rear of the engine block, you have to feel for it but you might be able to see it.
After that, replace everything and hope for the best.