how to change a valve cover gaskets on 94 toyota supra N/A

how to change a valve cover gaskets on 94 toyota supra N/A - Printable Version

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how to change a valve cover gaskets on 94 toyota supra N/A - Lexuspat - 17-05-2019

Hi all,

need some help,

as the title says really.

i did a service on a Supra and when i removed the spark plugs there was a mix of oil/water in numbers 4,5 and 6 ive been told its the valve cover gaskets that need to be changed

any help would be great

and heres a pic of the supra just because we love pics on OJC

[Image: supra.jpg]

how to change a valve cover gaskets on 94 toyota supra N/A - DaveEdin - 17-05-2019

Can't help, sorry...

But the supra looks well nice...

how to change a valve cover gaskets on 94 toyota supra N/A - Lexuspat - 17-05-2019

cheers Dave,

its a mates and while hes away asked if i would do a service for abit of cash in my back pocket.

so i got to have a supra for a week and some cash cant be bad

how to change a valve cover gaskets on 94 toyota supra N/A - Lexuspat - 17-05-2019

hes a better pic of her outside the woekshop

[Image: supra1j.jpg]

how to change a valve cover gaskets on 94 toyota supra N/A - Sparkystav - 17-05-2019

Oil/water in the cylinders, surely thats headgasket?

valve/rocker cover gaskets wouldnt cause that IMHO

how to change a valve cover gaskets on 94 toyota supra N/A - Stoney - 18-05-2019

Sparkystav Oil/water in the cylinders, surely thats headgasket?

Classic signs of it, yes. I was getting water in one cylinder in my little French runabout, and after an AA man and a couple of mechanics told me it was sure to be the HG (which I knew to be a thick steel one with under 5k miles on it!) I discovered it was a cylinder wetliner gone, so there can be other causes, but HG failure is by far the most common.

Who told you it was valve cover gaskets? I'd say further investigation into this is needed though, ideally by someone who knows these engines inside out.

how to change a valve cover gaskets on 94 toyota supra N/A - Lexuspat - 18-05-2019

i got the info from a google search and it sent me to the supra owners club where they say its a common problem and that changing the gaskets cures it 99% of the time but i thought i would put it out there.

its more oil then water but i just thought i could tap into the knowledge that we have here on OJC.

the car runs fine but as you drive away you get a little blue smoke out the back but has no other problems and its only in the rear 3 spark plugs

how to change a valve cover gaskets on 94 toyota supra N/A - Stoney - 18-05-2019

Lexuspat i got the info from a google search and it sent me to the supra owners club where they say its a common problem and that changing the gaskets cures it 99% of the time but i thought i would put it out there.

Well then in that case, it may be correct, as I know nothing of this specific engine, though some on here should, and may well be around to inform you shortly.

how to change a valve cover gaskets on 94 toyota supra N/A - mplavery - 18-05-2019

Hi mate

common problem is you get oil in the chamber where the coil sits on the spark plug, not in the cylinders

I have done mine but mine is a TT, Never done it on a N/A

All i can say is make sure you buy Genuine Toyota gaskets, Also on the TT's, the bolts that bolt down the cam covers have little plastic washers which in time go hard and brittle which need to be changed, if you dont your wasting your time as they will leak again. When the washers go hard and brittle, the bolts slightly loosen off and the oil starts to leak

how to change a valve cover gaskets on 94 toyota supra N/A - toxo - 18-05-2019

mplavery Hi mate

common problem is you get oil in the chamber where the coil sits on the spark plug, not in the cylinders

I have done mine but mine is a TT, Never done it on a N/A

All i can say is make sure you buy Genuine Toyota gaskets, Also on the TT's, the bolts that bolt down the cam covers have little plastic washers which in time go hard and brittle which need to be changed, if you dont your wasting your time as they will leak again. When the washers go hard and brittle, the bolts slightly loosen off and the oil starts to leak

Good advice there, lots of Toyotas are like that. You'll probably find they revised the washers/bolts to help prevent them loosening too.

I guess the only major difference on the N/A is going to be HT leads and getting the throttlebody and intake pipe out of the way, as that goes over the top of the cam covers on the 2JZ-GE.

Also don't overtorque the bolts when you do them back up as you'll snap the cam cover.