whitecamrs

anyone can tell me how can i adjust the valves on my v6.I had to change my intake gaskets and in order to put the new gaskets i had to remove the pushrods .So now i think i have to adjust them. anyone has any idea.....

Dale

iTrader: (12)

search my name, and "valves" or "rockers" in the v6 seaction, I typed this up not long ago.

br()bert

And dont worry. You'll have plenty of practice at it as you'll probably have to do it more than once! adjusting valves sucks

whitecamrs

the problem is not adjusting but to take all the junk out of the way....lol

br()bert

Well if you have bolts going down through the VC's like i do then you can get the VC"s off without removing the plenum. All i do is get the right socket that fits the vc bolts, put it on a swivel and a long extention. The bolt in the front drivers side is the hardest. You'll have to remove the inner most alt bracket,the egr and move the ac comp bracket out a little. Still takes some time but it beats the hell outa taking the top of the motor off. I have done this twice now. (beat rocker arm nuts ) Next time they loosen a different motor is going in!

Dale

iTrader: (12)

You are right on that one!

mmcdjs

according to the manual. you adjust these, then reassemble the VC's, intake, AC braket, EGR tube, TB heater hoses.. etc. and you'll be right as rain and be able to run your engine right from there.. yeah right. man I hate adjusting these valves! here's what it says though:

pg 81 paragraph 6 of the Haynes manual:

rotate the crankshaft until the number one piston is at TDC on the compression stroke. To make sure you do not mix up the TDC positions of the number 1 and 4 pistons, check the position of the rotor in the distributor to see which terminal it is pointing at. another method is to place your fingers on the number one rocker arms as the timing marks line up at the crankshaft pulley. if the rocker arms are not moving, the number one piston is at TDC. if they move as the timing marks line up, the number 4 piston is at TDC.

Back off of the rocker arm nut until play is felt at the pushrod, then turn it back in just until all play is removed. This can be determined by rotating the pushrod while tightening the nut. just when drag is felt at the pushrod, all lash has been removed. Now turn the nut in an additional 3/4 turns.

adjust the number one, five and six cylinder intake valves and the number one, two and three cylinder exhaust valves with the crankshaft in this position, using the method just described.

rotate the crankshaft until the number four piston is at TDC on the compression stroke and adjust the number two, three and four cylinder intake valves and the number four, five and six cylinder exhaust valves.

and thats it..of course you can't put the VC's back on unless you take the intake apart. Unless you have a 2 inch spacer installed between your runners and the intake manifold.

br()bert

of course you can't put the VC's back on unless you take the intake apart. Unless you have a 2 inch spacer installed between your runners and the intake manifold. ____________________________________________________


Yes you can, i have done it already. I have adjusted my valves twice already without taking the intake off. Just takes a little work.

Dale

iTrader: (12)

3/4 of a turn is wrong. They will rattle.

I have mine at 1.25 turns and they still tick when cold.

GM helms says 1.50 turn. When I install my 1.6 rockers, thats what I'm setting them at.

whitecamrs

i did adjust the valves today,but i gave to it only 1 full turn after the "lash" was felt now my question is .Will be that enough?My chilton manual says 1.50 but i'll go for 1 nowor should i gave more 1/2 turn?

Dale

iTrader: (12)

I ran mine alot on 3/4 turn. You will just have a tick.

The next time you take the top back off, give them extra 3/8-1/2 turn.

Maverick H1L

iTrader: (8)

Beem there, done that. First the engine wouldn't even (back)fire because of low (no) compression (this is after the locking fix) and now I am at 3/4 turn and it still backfires, so I dunno where to go next... I think I'm going to check and reset all of the valves to 1/2 turn past and then I'm springing for new plugs or coil or something...

BTW, br()bert. do you know offhand what the thread size is on those bolts? I hate my studs!

br()bert

Nah i wish i did , i posted asking and someone (Dale if i remember correctly) posted the part number for the nuts. (my nuts are bad) yeah i know didnt sound right!


BTW Maverick, my car backfired when i had the valves too loose.

TechSmurf

M10 x 1.50 is the thread into the head.. and I know they're M10 into the rocker.. likely x 1.50 too.