joshuapc

Im planning to cure the damn valve tap coming from my 22re engine. i was just wondering how difficult this is and would i have to change the gasket?

thanks

jason191918

For what it's worth, change the gasket. I have never done this before, but I know that adjusting the valves on a 22re is A LOT easier than doing it on a 3vze.

http://www.ncttora.com/fsm/1993/engine/7cylinder.pdf

page 35

rusche

Piece of cake
All you need is a feeler gauge, flathead screwdriver, and a 12mm.
Use your FSM, you can do it in half an hour.

muddpigg

iTrader: (1)

If you do it hot like FSM recommend wear mechanic gloves. I've at times replaced gasket and other times not. Inspect it change as needed.

INFINITY

that is one thing i hate about the toyota 20/22r motors, having to do the valve clearances hot. i wish they were like honda, and you did it cold
working over a hot engine sucks.
but yea it is easy

Matt16

I personally to it bare handed, gives you better feel for what your doing when sticking in the feeler gauge. But yes, it sucks burning yourself on the hot bits. I love the smell of hot engine oil though. Its a real sensory experience.

MMA_Alex

oh its not that hot!

on a 22re its easy, do a search there a ton of threads with tips.

Matt16

No, to burn yourself, you'd have to rest your arm on the head for a second or two, ample time to pull away if necessary.

abecedarian

and depending on your engine mileage, the only way to get the valves' adjustment set to a truly accurate warm measurement is with a new set of rocker shafts, or at least rocker arm inserts/bushings
you may be able to get the valves adjusted properly, but with high-mileage slack in the rockers and shafts, it's still going to tap-tap-tap forever... just like some volvo 240's I've run across.

have fun.

joshuapc

well i guess ill just change the gasket since ill be in there. hopefully i dont find any other problems!! so how hot would i have to run my engine in order to do the adjustment properly?

joshuapc

how long should i run it to get it hot?

abecedarian

til it's hot

blackspyder

approx 180-190 deg. F (running temp). Let it run till the Fan cuts on then you're good to start working. It took me 10 min to do mine (but I've had too much practice). You're gonna have to replace the Valve Cover Gasket, I had just put one on mine a month prior to doing the valve set and it had already stretched too much to reuse. Cursed thing was $15 at AAP with the Gromets

joshuapc

damn it must be pretty hot are to work with! well thanks everyone!!

joshuapc

well i did the adjustment and it went away a little but the tapping still happens. im wondering if its my timing chain? any body found their tapping to come from the timing chain????

toyota4x4907

Like Abe said, you pretty much cannot get rid of the valve tap without new rocker arms or bushings. Just live with it. Its what makes out 22res unique Mine was horribly loud, even after adjusting them 4 or 5 times last summer.
Well, if you think its your chain, take the VC back off and make sure you still have timing chain guides. How many miles does your t-chain have on it? Its supposed to be replaced every 130-150K miles regardless of whether it has metal guides or not.

arizonaguy

who says they have to be hot that isnt true at all

raydouble

Did you look down the chain case when you had the valve cover off?

874runnersr5

if it looks like this, time for new guides

toyota4x4907

Most everything "official" I have read says you have to do it warm. and it makes sense. Think:
Metal expands when its warm. If you put the valve lash into spec when its cold, say .012 for intake and .008 with exhaust, then warm it up, the difference between the rockers and valves with be less. Of course you could do it when its cold, but I would take into consideration the amount everything will expand when it warms up.