Help after rebuild 7mgte

cfurlan · 10-31-2010, 02:45 PM

Well after two weeks I finally put my engine back in. The car started but it runs like crap, almost like a misfire or something. I'm guessing it is the timing but I didn't have a timing light. I turned the crank by hand and everything lines up when the crank is at 0. I believe it's not suppose to be on zero so could this be my problem possibly?

89ST · 11-01-2010, 07:48 PM

yes, your problem is almost certainly timing. a timing gun is rather cheap and you'll certainly want to get one. I'm sure it will fix all your problems.

bioskyline · 11-01-2010, 07:51 PM

yeah you cam sensor need to be adjusted via a timing light. you can guess at it (adjust it while engine is running till it runs smooth) but for the 50 bucks for a timing light you know for sure.

cfurlan · 11-01-2010, 08:53 PM

I'm getting ready to try it in a few, I did try to do it by ear but didn't do anything. I also bought some ngk's so I'm gonna put those in first.

Sonyps307 · 11-01-2010, 10:45 PM

I just had my motor rebuild and the guys that build it had my distributor off a tooth or two and I had trouble getting it fire up but it did start and ran shitty had to pull out the distributor and fix it know it runs great and get a timing light it makes it so much easier To tune

cfurlan · 11-01-2010, 11:36 PM

Was that on a 7mge, mine is a gte. Well I changed the spark plugs and checked the timing and it ran a little better but it still sounds like its misfiring. I found one air leak on the back side of the intake. It is a steel hose that bolts to the intake. Its a very small air leak so I don't think it would be causing it to idle down to 400 rpm's and killing it. I really wish I could figure this out.

10-31-2010, 02:45 PM	#1
cfurlan Intake Join Date: Oct 2010 Location: Indiana Posts: 38	Help after rebuild 7mgte Well after two weeks I finally put my engine back in. The car started but it runs like crap, almost like a misfire or something. I'm guessing it is the timing but I didn't have a timing light. I turned the crank by hand and everything lines up when the crank is at 0. I believe it's not suppose to be on zero so could this be my problem possibly?

11-01-2010, 07:51 PM	#3
bioskyline 3" Exhaust Join Date: Oct 2010 Location: powell river bc Posts: 120	yeah you cam sensor need to be adjusted via a timing light. you can guess at it (adjust it while engine is running till it runs smooth) but for the 50 bucks for a timing light you know for sure. __________________ 87 silver turbo targa, bone ass stock (for now)

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11-01-2010, 07:48 PM	#2
89ST Intake Join Date: Sep 2010 Location: Hamilton Ontario Posts: 40	yes, your problem is almost certainly timing. a timing gun is rather cheap and you'll certainly want to get one. I'm sure it will fix all your problems.

11-01-2010, 08:53 PM	#4
cfurlan Intake Join Date: Oct 2010 Location: Indiana Posts: 38	I'm getting ready to try it in a few, I did try to do it by ear but didn't do anything. I also bought some ngk's so I'm gonna put those in first.

11-01-2010, 10:45 PM	#5
Sonyps307 Lexus & 550's Join Date: May 2010 Location: Baltimore Posts: 526	I just had my motor rebuild and the guys that build it had my distributor off a tooth or two and I had trouble getting it fire up but it did start and ran shitty had to pull out the distributor and fix it know it runs great and get a timing light it makes it so much easier To tune

11-01-2010, 11:36 PM	#6
cfurlan Intake Join Date: Oct 2010 Location: Indiana Posts: 38	Was that on a 7mge, mine is a gte. Well I changed the spark plugs and checked the timing and it ran a little better but it still sounds like its misfiring. I found one air leak on the back side of the intake. It is a steel hose that bolts to the intake. Its a very small air leak so I don't think it would be causing it to idle down to 400 rpm's and killing it. I really wish I could figure this out.