over adjusted valves

[auto666]

I have a 94 3.4 i had to change the t-stat yesterday and decided to adjust my valves wile i was at it i put it all back together , started it and realized i over adjusted one pair or more car runs fine power is fine and very smoothe any body know of any dangers or drawbacks to leaving it this way thanks

[zpwn06]

Re: over adjusted valves

gas mileage in the toilet?

[auto666]

Re: over adjusted valves

so far my milage seems ok my power band has definataly extended pulled to 5500 in first and second i also ported and polished the intakes and tb more while they where off anything else

[notsonic]

Re: over adjusted valves

i want to say that ive read because its a hydraulic lifter setup, if you tighten down the rockers a little too much, any excess tightening will cause the lifter to compress a little and shoulnt matter.

i tightened my rockers without doing the tdc method and i had no problems. just a couple turns here and there on each one till they were all tight.

i think its something like you want to have 3-4 threads showing over the nut, for the 3.4l.

though i think my lifters are going since its since started ticking again.:mad:

[tkoforpresident]

Re: over adjusted valves

it is so wrong not to correct valve lash properly on the 3.4

just so wrong.

you'll be wasting fuel and by all means you car should have less power.

[95astrovan]

Re: over adjusted valves

pulled to 5500 in second?! At WOT mine shifts out of second @ about 4600, ~65 mph...

[Firebirdkid96]

Re: over adjusted valves

please explain to me how one decides that its no additional work to adjust valves while doing a t-stat?

soinds more like you decided to do your t-stat while you were adjusting your valves lol

[FadeToBlak121]

Re: over adjusted valves

please explain to me how one decides that its no additional work to adjust valves while doing a t-stat?

soinds more like you decided to do your t-stat while you were adjusting your valves lol

exactly what i was thinking.

[auto666]

Re: over adjusted valves

of course it was extra work it was slow so i figured i would pull the intake to do the t-stat and adjust the valves all my rockers we loose enough to wiggle with the valve closed i think only one cylinder is over adjusted my manual says tighten till they dont wiggle then 3/4 turn

maybe the increase in power is from the valves acctualy opening all the way vs how loose they where

[auto666]

Re: over adjusted valves

pulled to 5500 in second?! At WOT mine shifts out of second @ about 4600, ~65 mph...

mine is a manual trans 5500 in 2nd is pretty 60 mph

[notsonic]

Re: over adjusted valves

it is so wrong not to correct valve lash properly on the 3.4

just so wrong.

you'll be wasting fuel and by all means you car should have less power.

well i didnt do it "properly" and its run fine since.

but they did loosen up again after a short while.:mad:

[95astrovan]

Re: over adjusted valves

ahh ok

[tkoforpresident]

Re: over adjusted valves

of course it was extra work it was slow so i figured i would pull the intake to do the t-stat and adjust the valves all my rockers we loose enough to wiggle with the valve closed i think only one cylinder is over adjusted my manual says tighten till they dont wiggle then 3/4 turn

maybe the increase in power is from the valves acctualy opening all the way vs how loose they where

omg epic fail.

u need to turn the engine to tdc, adjust half the intake and exhaust valves, then rotate another full turn then do the other ones. Otherwise u will have valves open when they should be closed and shut when they should be open.

[jdkvice]

Re: over adjusted valves

the rockers should move a little...thats no reason to go tightening away.

[Firebirdkid96]

Re: over adjusted valves

omg epic fail.

u need to turn the engine to tdc, adjust half the intake and exhaust valves, then rotate another full turn then do the other ones. Otherwise u will have valves open when they should be closed and shut when they should be open.

another epic fail. It's near impossible to screw up valves so bad that they completely reverse, due to the camshaft from what I've been taught. the car wouldn't run right, if it ran at all!

of course it was extra work it was slow so i figured i would pull the intake to do the t-stat and adjust the valves all my rockers we loose enough to wiggle with the valve closed i think only one cylinder is over adjusted my manual says tighten till they dont wiggle then 3/4 turn

maybe the increase in power is from the valves acctualy opening all the way vs how loose they where

A. why the hell would you pull the intake to do the t-stat? that's like making a 5 minute job an hour one.

B. Tightening them won't increase power, they were built to tolerences, and unless you built the engine and did so incorrectly, they were fine where they were, the change wont make a difference.

mine is a manual trans 5500 in 2nd is pretty 60 mph

I haven't touched my valves and in 2nd with a t5 at 5500 I'm doing about 70.

the rockers should move a little...thats no reason to go tightening away.

EXACTLY!