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Timing Maybe???

 
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Old 02-08-2011, 11:10 PM
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Timing Maybe???

Hey Im A Noob here. Going thru issues with my 92 Si with a F22B swap. The guy i bought it from threw the timing belt, and now the car will not start.. All has been replaced, but I am geting a backfire and nothing else. I checked for spark. Got it. Checked timing.. Still working on it. Timing belt seems to not be tight as it shud be, but prob just needs tightening from the tensioner. Either way I think the backfire is coming from the intake.. Please hel

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Old 02-09-2011, 02:13 AM
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Re: Timing Maybe???

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Originally Posted by 1992LudeSi View Post
Hey Im A Noob here. Going thru issues with my 92 Si with a F22B swap. The guy i bought it from threw the timing belt, and now the car will not start.. All has been replaced, but I am geting a backfire and nothing else. I checked for spark. Got it. Checked timing.. Still working on it. Timing belt seems to not be tight as it shud be, but prob just needs tightening from the tensioner. Either way I think the backfire is coming from the intake.. Please hel
If the Tbelt broke while the motor was running, you have an EXTREMELY high likelyhood that the intake or exhaust valves in your motor are bent to hell and might have even scarred the top of the pistons. When i threw a Tbelt a few years back i bent every single one of the 16 valves. I ended up swapping in a new motor.
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Old 02-09-2011, 11:11 AM
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Re: Timing Maybe???

Already went thru the motor, and replaced all that was bent. Car just had full valve job, and head work done.. Just having issues with getting it all back together running again. As i stated before i think a timing issue, and the valves are not closing when the pistons are at TDC. Will be looking into today.. For once NOLA has ok weather..
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Old 02-09-2011, 01:39 PM
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Re: Timing Maybe???

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Originally Posted by LudimusPrime View Post
If the Tbelt broke while the motor was running, you have an EXTREMELY high likelyhood that the intake or exhaust valves in your motor are bent to hell and might have even scarred the top of the pistons. When i threw a Tbelt a few years back i bent every single one of the 16 valves. I ended up swapping in a new motor.
Why?! -.-; New aftermarket "racing" valves, such as skunk 2, are only like 250 dollars. Comparable to 1000+ for an engine?

Whoever got your old engine was one lucky dude.
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Old 02-09-2011, 03:01 PM
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Re: Timing Maybe???

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Why?! -.-; New aftermarket "racing" valves, such as skunk 2, are only like 250 dollars. Comparable to 1000+ for an engine?

Whoever got your old engine was one lucky dude.
Why? The car was a 93 SRV that had 220,000 miles on the motor. It had leather interior, new suspension goodies, and id been saving up for the glorious H22a anyway to breath new life into her. Instead of blowing money on an old tired engine, i took the opportunity to get a LSD H22a setup from Hmotorsonline

I still have the trans and head from the original motor in storage along with a DSM 13b turbo from my good buddy's '90 Eclipse GSX we put a TD05 in
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Old 02-09-2011, 03:07 PM
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Re: Timing Maybe???

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Originally Posted by 1992LudeSi View Post
Already went thru the motor, and replaced all that was bent. Car just had full valve job, and head work done.. Just having issues with getting it all back together running again. As i stated before i think a timing issue, and the valves are not closing when the pistons are at TDC. Will be looking into today.. For once NOLA has ok weather..
Ok, cool. The 'all was replaced' part on the OP is ambiguous to say the least. Many folks dont know what an interference motor is. Its pretty easy to be a tooth or two off on cam timing. When i did my first tbelt job i was a tooth or two off and the motor ran..barely, but it ran well enough until i had time to tear into it again.
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Old 02-09-2011, 03:31 PM
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Re: Timing Maybe???

do you have a timing light that you can use or that someone can lend you? if the belt isn't tight like it is supposed to be then you would def be able to see that with a timing light. as long as ur motor is still turning over you must not be too off on the timing, might just be a tooth or so, 9 times outta 10 if ur backfiring through the intake its a timing issue.
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Old 02-09-2011, 04:59 PM
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Re: Timing Maybe???

If you redo your timing and go with an h23 manual tension, your timing will be perfect. ;)

As it usually takes a couple hours to slip that belt on its so f`in tight, no such thing as a tooth off. I think the sheer muscle of pulling on it for all that time gives it enough edge to get over the last cam. Real PITA, but no mistakes.
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Old 02-09-2011, 10:52 PM
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Re: Timing Maybe???

Im gonna prob do that terror. Have to source me one local.
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Old 02-10-2011, 11:56 AM
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Re: Timing Maybe???

ANother question... I did the jumper CEL check. I get steady long flashes that are 3 secs apart... Any help?
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