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Old 05-15-2012, 06:58 PM   #1
tenchu
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Join Date: Jun 2004
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Location: Milwaukee, WI
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1993 STi RA V LTD
Green

Default EJ20 timing belt, is this off?

Don't get much action in the old school forum, and as far as I know, when it comes to the alignment of the timing belt, an ej20 is an ej20. But if anyone is curious, this is an EJ20G. I'm having some major issues building vacuum with my car after swapping. Only thing that changed since pulling it from a running car was that I changed the timing belt. I'm starting to wonder if I am off, even though to me, it looks right.













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Old 05-15-2012, 07:04 PM   #2
eg33GC
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EJ20K RS

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nice closed deck


looks on. maybe you have some bent valves
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Old 05-15-2012, 07:06 PM   #3
tenchu
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Ugh. How could I have bent valves if the timing is on? I did leakdown test after motor was pulled from old car right before I put it in the back of my Dad's CRV and brough it home :/
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Old 05-15-2012, 07:07 PM   #4
eg33GC
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Dunno. Sucks youre so far away from Eau Claire
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Old 05-15-2012, 07:08 PM   #5
tenchu
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I got beer. And gas money :P
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Old 05-15-2012, 07:08 PM   #6
tenchu
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And a comfy couch. 2 to choose from, plus a love seat :P
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Old 05-15-2012, 08:29 PM   #7
tenchu
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Okay, just did a leakdown test, can't hear any air leaking past any valves (I have to do via sound because my ****ty harbor freight leakdown tester gauge is useless. So maybe timing IS off.... I hope so, I'm running out of ideas....
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Old 05-15-2012, 11:09 PM   #8
tenchu
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So i'm thinking my exhaust cams are both off a tooth. Counted teeth by painting lines on the belt, got correct count from intake cams to crank, but i think i was 1 over from each exhaust cam to intake cam. Ugh.
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Old 05-16-2012, 01:06 AM   #9
eg33GC
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I'd feel bad coming down and not being able to solve it though. It's unlikely but with my luck

1 tooth off is 7*, you will notice it, but it should run better than that.

Also, advancing the intake cams inwards 7* is a free mod for a bit more cam ramp.
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Old 05-16-2012, 01:08 AM   #10
tenchu
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Well, if BOTH exhaust cams are off 1 tooth??

Intake cams are head on. its exhaust that may/are off
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Old 05-16-2012, 01:15 AM   #11
eg33GC
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That may do it, but the emphasis would be on the exhaust side. IMO these are a bitch to time by yourself perfectly
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Old 05-16-2012, 08:48 AM   #12
tenchu
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Quote:
Originally Posted by eg33GC
That may do it, but the emphasis would be on the exhaust side. IMO these are a bitch to time by yourself perfectly
I can tell. I didn't have any issues on my Forester, but I guess that was just luck
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