well i have eliminated alot since the last time i have post about it. I know it is the engine not tranny or flex plate/torque converter. I have also changed the balancer, plugs, wires, distibutor. I checked timing and besides a little flux it is on 6 deg btc. The timing chain is 1 year old and a double roller. The compression on all is between 135-145 psi. I have tried to pull the inctectors to see if any of them drop more than the other, with little change. I need a direction before i tear into the motor. It has been suggested the one of the springs is toast or a bent push rods..... Please point me in the right direction thnx THE SHAGGY( THOUGH NOW DEFUNCT) IROC
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'89 SHAGGY IROC
L98 7r4, all free stuff,T.E.S.,HOOKER CAT BACK,KYB,ACCEL8.8,JET fan sw. etc.
so much to do , so little money



[This message has been edited by irocnroll89 (edited April 29, 2001).]

 

no codes? i'd check fuel pump preasure and volumn, valve springs and push rods, and i'd leak it down.

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ICON Motorsports

1st & 3rd
MM Black Diamond Lodge 538 F&AM

 

i forgot , no codes. Also it smells really rich at the back. Oh and it only seem s to happen after the motor is at temp(185deg)thnx ede

 

bttt

 

Mine is acting similar, actually today I noticed it smelled like a lawn mower. It'll stall out while stopping, miss constantly, shake, etc. The thing is I already know what the prob w/ mine is. I have been b*tching and moaning about it for about a week now, my fuel pressure reg is blown. I don't have my pressure gauge down here, so I don't know what the pressure is at now, but when I left PA in january, it was running about 33 PSI or so. If it drops below I think 24, generally the car will not idle.
Now if the IRS will get me my check, I'll fix the thing!

Oh yeah, mine is throwing a code though, O2 sensor, and spark knock.


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Corry Lazarowitz
clazarow@voicenet.com
clazarowitz@hotmail.com
SLP 1 3/4" headers, 3" cat back (stock cat )MSD ignition. MSD Blaster SS coil. More soon when funds are avail...

[This message has been edited by Corry (edited April 06, 2001).]

 

back again, with an update........ I found out i had 4 bad fuel injectors. So that was the reason for the vibration at 1800 rpm. Now i have a vibration at 1600 rpm. The motor is smooth and the exhaust sounds very smooth, but in side the car the is a resonance. I also seem to have a vibration at 3000 and higher. Again this is all with the motor at temp. Also it is not the trans or T/C, as i have disconnected them and it is still there. I am wondering about fuel pressure? I have the 24 lbs SVO injectors set at 50 psi. Is this important? I don't seem to have any vacuum problems as i just put the whole intake and higher back toghether with new everthing.

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'89 SHAGGY IROC
L98 7r4, all free stuff,T.E.S.,HOOKER CAT BACK,KYB,ACCEL8.8,JET fan sw. etc.
so much to do , so little money

[This message has been edited by irocnroll89 (edited April 29, 2001).]

[This message has been edited by irocnroll89 (edited April 29, 2001).]

 

Irocnroll89 I think 50 psi is to much with
the 24 svo injectors. That kind of pressure
would be good for a supercharger or a very
very nasty 383 or 400 engine :-))
BenIroc
89 Iroc,TFS twisted,f*rd 9´´ rear etc etc