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PostPosted: Sat Aug 11, 2007 10:31 am 
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Some call me a god

Joined: Sun Nov 03, 2002 8:01 pm
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Location: Sask. Canada
Somehow the timing belt jumped while it was in transit because I left the car in gear on the trailer. Parking brake was on too. The belt appeares to have jumped on the crank shaft pulley, both the intake and exhaust cams are out 3 teeth. No fun.

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Last edited by colt200 on Sat Aug 11, 2007 7:58 pm, edited 1 time in total.

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PostPosted: Sat Aug 11, 2007 12:59 pm 
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Spends Too Much Time Under The Hood
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Location: Auburn, AL
Did you bend the valves?

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PostPosted: Sat Aug 11, 2007 7:58 pm 
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Some call me a god

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Location: Sask. Canada
Wasnt sure about the valves or any other damage, but 3 of the other dsm guys there ran me back into town and grabbed some steel rod, 8X1.25 die, and showed me the way of loosing off the tension for the belt without pulling the cover off. Their 2 talons and one gvr-4 from Colorado (14 hr drive) were kicked off the track after they were approaching the 12.0 mark, Tech guy said there was a rule not allowing datalogging while racing. This was at a track that says they are following NHRA rules. Street legal event.

But back to the colt, fixed the cam alignment issue, started it up. Ran like crap, would barely idle (about 400 rpm). Still ran good under boost. So went and passed tech inspections.

Did one race, 13.262 @ 85.297 mph, part way into fourth gear it lost power, coasted the last few hundred feet. 19 psi and 14.5 a/f ratio. Thought it may be out due to the intake cam may of been out a tooth still. http://www.putfile.com/pic.php?img=6277202 - time slip

Checked ignition timing, yep, out to lunch. Set it as close to the base timing as I could, still past the 10* mark. No where close to where I wanted it. Turned up the boost, added more fuel. Figured its already done, so go out in a good run.

Run 2, 14.364 @ 69.461 mph. 1.798 for the 60 foot, first gear didnt even get me to 60 feet. Was pulling away from the car I was racing against. Was starting to smoke at the end of third gear. Shifted into fourth, smoke gone, building boost, smoke came back at about 12 psi. Pushed in the clutch and coasted again after about 3/4 of the track. Smoking the rest of the way. http://www.putfile.com/pic.php?img=6277203 - time slip

Missing really bad on the return trip, smokes under any boost. Oil past the filler cap, oil on the tranny from the cas area. And got to look at it more later this week.

Wasnt the best, but still made it down the track on its own power.

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PostPosted: Sat Aug 11, 2007 9:54 pm 
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Spends Too Much Time Under The Hood
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Joined: Wed Oct 04, 2006 10:07 pm
Posts: 237
Location: Edmonton, Canada
What a shitty luck with your colt eh???

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PostPosted: Sun Aug 12, 2007 10:52 pm 
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Some call me a god

Joined: Thu May 05, 2005 2:31 am
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Location: Commerce City, Co
Glad to hear that galant made it. He is a friend of mine. I tuned his car actually. We got her down to a 12.4@112 at 5880ft here. Things weighs a ton.

Sorry to hear about the car. I hope things can get worked out quickly.

Steven

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PostPosted: Sun Aug 12, 2007 11:51 pm 
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Some call me a god

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Location: Sask. Canada
I am not sure what Scott actually ran up here but it was pretty good I thought. Here is what I found out tonight during a compression test.

without oil:
#4 = 125
#3 = 70
#2 = 135
#1 = 145

with oil:
#4 = 130
#3 = 75
#2 = 145
#1 = 152

Been thinking about a 2.3 kit now.

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PostPosted: Mon Aug 13, 2007 1:17 am 
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2nd Banana
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Location: San Diego, CA.
Quote:
I am not sure what Scott actually ran up here but it was pretty good I thought. Here is what I found out tonight during a compression test.

without oil:
#4 = 125
#3 = 70
#2 = 135
#1 = 145

with oil:
#4 = 130
#3 = 75
#2 = 145
#1 = 152

Been thinking about a 2.3 kit now.
Seems to me, with numbers like that, that there is head damage. I would pull the head and check things out and rebuild the head before I invested in a stroker bottom-end.

Also, when setting base timing, if you have a datalogger, make sure it is NOT plugged in to the diagnostic port while you're setting the timing.

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PostPosted: Mon Aug 13, 2007 8:27 am 
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Some call me a god

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Location: Sask. Canada
The head is for sure coming off to look into it further when I get time.

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PostPosted: Thu Aug 30, 2007 9:59 am 
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Some call me a god

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Posts: 1108
Location: Sask. Canada
16 bent valves, 16 marks in 4 pistons, damaged valve seats and I imagine guides are gone too.

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PostPosted: Fri Aug 31, 2007 2:43 am 
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Joined: Sat Oct 18, 2003 4:28 pm
Posts: 404
Location: salt lake.
thats shitty man.. my old toyota mr2 had reliefs cut into the pistons to prevent such valve-fruit and banana. why wouldnt mitsu do this?
has anyone ever had a machine shop do this to their 4g63 builds? probably not a bad idea.

interference motors FTL !

good luck with the rebuild.


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