chasing a problem
10-02-2013, 12:11 AM
#1
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Car: 85 Trans Am
Engine: 383 ci
Transmission: Liberty Geared Tko 600
Axle/Gears: Moser 9" 4.11 gear wavetrac locker
chasing a problem
I was out driving the firechicken a month ago and have had some problems since the drive. The problem started after a tire burner. Mid way through the burnout the car lost power almost like it dropped a cylinder and then hooked up.usually this car will spin untill I get out of it. As I pulled to a stop I noticed at least a 300 rpm drop from normal. No weird noises, puffs, bangs, or rattles. Car has felt low on power since.
Since the initial problem I have changed plugs, checked all wires, inspected and run valves. Checked initial timing and temped headers. The only odd thing I have run into that I felt was was a little off was the header temp. Number 3 and 7 seemed a little cold. Num 3 got to 120 ish and number 7 only got to 100 ish. All other cylinders were 200 to 300 degrees.
My next check is going to be a compression test and then to clean and inspect the carb.. any ideas would be great ad this is really starting to frustrate me. Thanks guys.
Since the initial problem I have changed plugs, checked all wires, inspected and run valves. Checked initial timing and temped headers. The only odd thing I have run into that I felt was was a little off was the header temp. Number 3 and 7 seemed a little cold. Num 3 got to 120 ish and number 7 only got to 100 ish. All other cylinders were 200 to 300 degrees.
My next check is going to be a compression test and then to clean and inspect the carb.. any ideas would be great ad this is really starting to frustrate me. Thanks guys.
Last edited by 85SILVERBULLET1; 10-02-2013 at 07:35 AM.
10-02-2013, 07:36 AM
#2
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Re: chasing a problem
I would do the compression test and see how the cylinders compare to each other.
10-02-2013, 09:48 PM
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Car: 1987 Trans Am
Engine: 355 tpi
Transmission: 5 speed
Re: chasing a problem
you can also pull your valve covers and check for bent push rods, like on the intake valve in #7 cylinder.
11-12-2013, 01:58 PM
#6
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Car: 85 Trans Am
Engine: 383 ci
Transmission: Liberty Geared Tko 600
Axle/Gears: Moser 9" 4.11 gear wavetrac locker
Re: chasing a problem
Well I kept digging and finally found my msd pro billet dizzy to be the culprit.... Here is a pic.
11-12-2013, 07:59 PM
#7
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: chasing a problem
Interesting. I wonder how that happened? Any chance of getting warranty on it?
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11-13-2013, 10:51 AM
#8
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Car: 85 Trans Am
Engine: 383 ci
Transmission: Liberty Geared Tko 600
Axle/Gears: Moser 9" 4.11 gear wavetrac locker
Re: chasing a problem
I am going to send it to msd but it looks like 1 year is all u get. It looks like casting flaw
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