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 Apr 29 2006, 06:14 PM
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DSM Tech Wizard  Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10  |
Working on a 91 AWD Talon.... Changed the timing belt, removed balance shafts, and put a clutch and flywheel on. When I got the car, the ECU would not allow the car to run. Swaped ECU's car fires right up. ISC is known bad.
Problem... Car idles and runs ok. Lifters are knocking like no tomorrow. Power is non-existant... it's slower than my truck. Boost does not build until 4000rpms, then hits 15. 5th gear, pedal to the floor netted 60mph, droping to 45mph... I can't get the timing adjusted correctly... the mark on the crank pully is still well below the marks on the timing cover. Timing is set right, I just pulled it apart and re-did everything. I'm at a a loss... any ideas? -------------------- The fastest car I own is a minivan....
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Apr 29 2006, 06:31 PM
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 Eats and sleeps DSM jargin. Group: Members Posts: 1,995 Joined: 27-November 04 From: Yates City IL Member No.: 389 |
Has the outer ring of the balancer/pulley slipped? Make sure the notch in the pulled lines up with #1 piston location.
-------------------- 92 Eagle Talon TSI AWD "The Black Golfball" How fast can a 14B go???
91 Chevy C1500 "Problem Child" **SOLD** 01 Impala DD 07 Trailblazer Wife's new DD Cars run on blood, sweat, and horsepower... Without the first two, you can't get the last" SOB Racing "Sitting On Blocks" |
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Apr 29 2006, 08:04 PM
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#3
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DSMCentral Godfather Group: Admin Posts: 3,823 Joined: 10-January 01 From: Washburn Member No.: 26 |
crank angle sensor bad or 180 out? I've never done that on a 4 cylinder. I don't know if it would even run.
-------------------- In Loving memory of David T Crebo
Greatness comes from the most unexpected places!  |
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Apr 29 2006, 08:12 PM
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#4
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DSM Tech Wizard Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 |
If I could get my logger to work I might be able to find out more. I thought about that also kicks...
-------------------- The fastest car I own is a minivan....
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Apr 29 2006, 11:47 PM
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 Person of Wisdom Group: Members Posts: 110 Joined: 5-May 03 From: Granite City, IL Member No.: 128 |
im sure youve checked the obvious like boost leaks and such. One thing youll want to do is, while the car is running, unbolt the oil feed banjo bolt and see if it squirts oil out to make sure you have good oil pressure. Another thing is that if you have a siezed up lifter, it couldve caused a rocker arm to pop off and you could be losing power there. I would definately replace the lifters and keep tinkering with your cam angle sensor and get your base timing worked out. It should be at 5 degrees BTDC +/- 3 degrees.
-------------------- Drew Taylor; 1992 Eagle Talon TSi AWD
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Apr 30 2006, 12:02 AM
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 Post Master Group: Members Posts: 626 Joined: 25-September 02 From: Urbana, IL Member No.: 19 |
Maybe the backing plate that goes between the balance shaft pulley and the timing belt pulley on the crank is on backwards? There has to be something physically off between the position of the crank pulley and the position of the cam sensor for the base timing to be so far off that it can't be set.
-------------------- Eric Wort
87 White Buick Turbo 'T' (11.71 @ 116.5, 1.61 60ft, slipping trans) 92 Teal Eagle Talon TSi AWD (burn victim) |
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Apr 30 2006, 09:00 AM
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#7
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 Zen Master DSM Group: Moderators Posts: 3,008 Joined: 10-January 01 From: in front of you Member No.: 5 |
QUOTE (black92_tsi_awd @ Apr 29 2006, 06:31 PM) Has the outer ring of the balancer/pulley slipped? Make sure the notch in the pulled lines up with #1 piston location. This is what happened to me and I had the exact same problem with not being able to correctly set the timing. From what I understand, its a fairly common problem on old crank pulleys. |
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Apr 30 2006, 12:36 PM
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#8
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 Eats and sleeps DSM jargin. Group: Members Posts: 1,108 Joined: 2-October 05 From: Waverly, Illinois Member No.: 636 |
QUOTE (natedogg @ Apr 30 2006, 10:00 AM) QUOTE (black92_tsi_awd @ Apr 29 2006, 06:31 PM) Has the outer ring of the balancer/pulley slipped? Make sure the notch in the pulled lines up with #1 piston location. This is what happened to me and I had the exact same problem with not being able to correctly set the timing. From what I understand, its a fairly common problem on old crank pulleys. Is this also the reason why people buy the underdrive crank pulley? -------------------- Thanks, Bud!
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Apr 30 2006, 04:00 PM
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#9
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Eats and sleeps DSM jargin. Group: Members Posts: 1,995 Joined: 27-November 04 From: Yates City IL Member No.: 389 |
[quote=BudmannG,Apr 30 2006, 12:36 PM] [/QUOTE]
Is this also the reason why people buy the underdrive crank pulley? [/quote] underdrive crank pullies reduce parasitic loss by underdriving the accessories (AC, power steering, water pump and alt). Sometimes without an overdrive pulley on the alt to make up the differance, you can get low output on the alternator causing the lights to be dim etc. -------------------- 92 Eagle Talon TSI AWD "The Black Golfball" How fast can a 14B go???
91 Chevy C1500 "Problem Child" **SOLD** 01 Impala DD 07 Trailblazer Wife's new DD Cars run on blood, sweat, and horsepower... Without the first two, you can't get the last" SOB Racing "Sitting On Blocks" |
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Apr 30 2006, 05:47 PM
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#10
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DSM Tech Wizard Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 |
QUOTE (wortdog @ Apr 30 2006, 12:02 AM) Maybe the backing plate that goes between the balance shaft pulley and the timing belt pulley on the crank is on backwards? There has to be something physically off between the position of the crank pulley and the position of the cam sensor for the base timing to be so far off that it can't be set. The more I think about it, the more this sounds like the culprit. Didn't even think about it when I put it on.... Back apart it goes! -------------------- The fastest car I own is a minivan....
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May 1 2006, 08:14 PM
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#11
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DSM Tech Wizard Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 |
Exactly right wort... I feel like such a dumb-ass.... Runs great now!
-------------------- The fastest car I own is a minivan....
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