Backfiring after installing rockers, PLEASE HELP SOON
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Backfiring after installing rockers, PLEASE HELP SOON
Please take time to write some advice i am going to try fix this tommorow night.
Ok here is the deal, i took the rockers off to fix an oil problem.
Well i was trying to figure out pr length and i kept turning over the engine which pumped all the oil outta the lifters making them squishy. so i tightened all rockers to 22ft lbs and put it back together....my guess is we tightened the rocker down too much with depressed lifters and when they primed up its keeping an exhaust valve open and backfiring.
If i hold the gas at like 2-3 grand it pops randomly...
PLEASE HELP with advice.
SHould i just readjust all rockers with warm engine and oil press. built up? I think i am going to do the zero lash then 3/4 turn method this time.
I made sure there was no vacuum leak so thats outta the question.
THANKS
P.S. there is what i think is lifter noise in the pass front side valve cover area...BUT it was doing this b4 so its unrelated but im worried i am going to have to replace lifters????
Ok here is the deal, i took the rockers off to fix an oil problem.
Well i was trying to figure out pr length and i kept turning over the engine which pumped all the oil outta the lifters making them squishy. so i tightened all rockers to 22ft lbs and put it back together....my guess is we tightened the rocker down too much with depressed lifters and when they primed up its keeping an exhaust valve open and backfiring.
If i hold the gas at like 2-3 grand it pops randomly...
PLEASE HELP with advice.
SHould i just readjust all rockers with warm engine and oil press. built up? I think i am going to do the zero lash then 3/4 turn method this time.
I made sure there was no vacuum leak so thats outta the question.
THANKS
P.S. there is what i think is lifter noise in the pass front side valve cover area...BUT it was doing this b4 so its unrelated but im worried i am going to have to replace lifters????
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Originally Posted by GET_SOM
double check the coil packs as well.. start with the simple things
Jim C.
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yea its poss to be ignition, but i didnt do anything with that besides take it off and put it on, so i can only assume its something i did. There are not adjustable but i am going to reset the rockers to 3/4 turn after zero lash, then if that doesnt work ill go from there i guess.
I picked up plugs just for the heck of it. Only a 15 min job.
I picked up plugs just for the heck of it. Only a 15 min job.
#7
Your rocker arms are NOT ADJUSTABLE. They are positive stop rockers. Just torque them down to whatever the spec is and be done with them. If this doesnt make sense, then you should have someone look at it for you, you will be happier in the end.
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so you are saying it doesnt matter if this is torqued down whether the lifters are primed or not? I am not bringing this into someone just because i havent done this b4. Thats how u learn.
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HAHA, YEA ILL CHECK THE FUSES.
pLUGS ARE 15 MINUTES WHEN U ALREADY HAVE THE COIL PACKS OFF FOR THE THE ROCKERS...ILL PRLY TRY PLUG WIRE CONNECTION AND PLUGS FIRST I GUESS....WE SET IT TO 22FT LBS IT SHOULD BE GOOD
pLUGS ARE 15 MINUTES WHEN U ALREADY HAVE THE COIL PACKS OFF FOR THE THE ROCKERS...ILL PRLY TRY PLUG WIRE CONNECTION AND PLUGS FIRST I GUESS....WE SET IT TO 22FT LBS IT SHOULD BE GOOD
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THERE ISNT any sensors that are by the tranny that could cause rough running could there? I checked it over and saw everything plugged back in...the 4 o2 sensors etc..
Thanks for your help guys.
Thanks for your help guys.
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A melted wire will do it, that is why I said to check the fuses - A melted wire will blow a fuse - did it to me a few months ago. Sometimes messing with the coil packs will blow a fuse as well - worth a shot - especially the 20A ENG SEN fuse.
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THERE HAS BEEN A WELL"HOLLOW TICKING SOUND" NOT TOO LOUD BUT NOTICABLE WHEN BY ENGINE, ONLY IN THE PASS. FRONT ENGINE AREA..I THINK FROM HEAD.
i HAD MY PR'S OUT ALREADY AND THEY LOOKED FINE...I WAS ASSUMING THE NOISE IS POSSIBLE THE LIFTERS, BUT SHOULD I ROLL THE PR'S TO MAKE SURE THEY ROLL STRAIGHT AND ARENT BENT?
wOULDNT I HAVE SEEN THEM BENT?
i HAD MY PR'S OUT ALREADY AND THEY LOOKED FINE...I WAS ASSUMING THE NOISE IS POSSIBLE THE LIFTERS, BUT SHOULD I ROLL THE PR'S TO MAKE SURE THEY ROLL STRAIGHT AND ARENT BENT?
wOULDNT I HAVE SEEN THEM BENT?
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Well guys thanks for your advice. I changed plugs and found one where the ground strap was touching the electrode thus bearly if ever allowing a spark due to no potential. IT runs great and the clutch is awesome!
There is still that ticking noise in the front pass but im not worrying at this point.
Thanks!!
There is still that ticking noise in the front pass but im not worrying at this point.
Thanks!!
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Originally Posted by nahasapeemapetalon
Well guys thanks for your advice. I changed plugs and found one where the ground strap was touching the electrode thus bearly if ever allowing a spark due to no potential. IT runs great and the clutch is awesome!
There is still that ticking noise in the front pass but im not worrying at this point.
Thanks!!
There is still that ticking noise in the front pass but im not worrying at this point.
Thanks!!
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Originally Posted by nahasapeemapetalon
i dont know the brand name being the prev.owner bought them...they are the metal gaskets..if that helps??