i have an exhuast valve leaking a little, you can hear it when it's running and the exhaust is sucking backa little. what are the facorty specs for adjusting the exhaust valves, i'm less worried about the intake valves than the exhaust. any info will help. suggest threads or give me links please?!?

 

the numbers are .008 and .012, larger one is the exhaust. Just make sure you adjust them when its hot

 

^ sorry your suppost to do it cold hot would make it looser once it cools down

 

i actually found a guide on how to do it online. you do it cold, turn the engine when #1 is a TDC(timing mark on 0) and adjust the INT and Exhuast on the #1, INT on #2 and Exhaust on #3 then turn the engine 360 degrees, or to where #4 cylinder is at TDC(same as before) and adjust the intake and exhaust on #4, Exhaust on #2, and intake on #3. the numbers are right, 0.008 on the intake side and 0.012 on the exhaust. the way i always remember it, is that the intake valves are the closest to the intake and "carb" and the exhaust are the ones closer to the exhaust manifold. and it's supposed ^ lol

 

make sure the timing marks are on 0 both times!!!!!!!!!!

 

as long as it is on the bottom of the lobe you will be fine it is the same lift for about some thing like 15 degrees of the cam just thinking off the top of my head mabye more with out looking at a cam card or factory profile

 

This would not cause a valve leak unless your valve lash was way off.

 

it most likely burnt any who

 

I'd check your valve springs may have a broken spring .. Been down that road took out my head gasket

 

http://www.toyotaminis.com/forum/newreply.php?do=newreply&p=173797
i'm sure it's not a burn valve... well almost... i'm do what i can to it tomorrow to see what i can do to it
http://www.toyotaminis.com/forum/newreply.php?do=newreply&p=173811my instructor at school is who brought it to my attention, he said he heard what he said he thought was a tap in it from about 15' away from it and came over and listened to it and he said he'd almost guarantee that it was just a valve leaking. not burn^^

 

How to adjust engine valves - YouTube

This guy's video helped me do mine!

 

tapping could also be broken timing chain guide...

 

These engines are gonna tap...should sound like a lil sewing machine. Wait til the engines cold and set them at .007 intake and .011, exhaust.

 

naw bro, engine was rebuilt not long ago. new timing chain and all, i saw the receipts. the exhaust is sucking back a little when it's running, and that's why dude said it was a valve

 

when i first got my 94 the tining chain guide was broken. I replaced the chain and guide with the kit sold at autozone...sure enough, 20k later it's broken again. i know it was caused from me beating on her, and i've learned to take it easy. But the plastic guides are terrible anyways. currently saving some $$ to buy the double row kit from 22reperformance.com.

 

once a valve leaks it will burn/leav resadew and if left long eghough the sealing will never be the same again

in less the vavle is re lapped with paste, I have dry lapped them before it helps but if to far gone it is a waste of time