I hoping I can get a few ideas here as to what is wrong. Here is my story:
Yesterday I finally got my rebuild ready to fire up. It was turning over but wasn't starting. After checking my codes I had a 51 and a 41... TPS. I adjusted my TPS, cleared my codes, and tried again. VAROOM! :biglaugh: Started up instantly and sounded sooooo nice! I was about to set the timing (which was at ~22 degrees) but I noticed a decent sized oil leak so I cut the engine to fix the leak. I left car for the night and today I go to start it up to again. Crank crank crank but no start. I moved the CPS a little clockwise to retard the timing. Crank crank crank but no start. Sometimes it would almost catch, cough, whatever you want to call it. I noticed on my boost gauge that when it sputtered, the pressure would spike bigtime!! like maxing out my 30 psi gauge :aigo:..... That can't be good.
I didn't know what the hell was wrong. I didn't change anything from the night before when the engine was just purring. The engine was cranking slower at this point so got a spare battery connected to boost it. After a bit a cranking this time, the car sputtered and started. But now it is running very rough, barely idling at ~400rpm.![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I tried to set the timing as best I could but it was wavering pretty bad. I pulled the jumper from the diag box and it jumped the timing up to about 13-14 degrees as it is supposed to.
I didn't know what else to do so I just cut the engine. I checked the engine codes again but there are none. I double checked the TPS and it hits the IDL contact where it is supposed to. I hooked up a compressor to the intake to pressurize it, to see if I blew anything apart with the boost spikes and for the most part everything sounds sealed... .EXCEPT... somewhere on the intake side or near the rear, I can hear a leak. I can't pinpoint the source of the sound (any tips?). Not sure if it is an actual leak or just air getting past the valves in the engine but the scary part is that there is a gurgling sound accompanied with the air sound. Please tell me this is somehow normal. :1zhelp:
I want to try avoid running it until it is ready to get on the highway to set the rings. Any ideas?
I just realized this is a long post soooo
CLIFF NOTES:
- New rebuild. After fixing TPS code, engine fires up and sounds NICE at 22 degress.
- Next day, after changing nothing except fixing oil leak, engine won't start. Notice major boost spikes while sputtering during cranking.
- Eventually get it to start after boosting with another battery, but now runs like crap!
- Now have a weird air leak noise with a gurgle to it.
Yesterday I finally got my rebuild ready to fire up. It was turning over but wasn't starting. After checking my codes I had a 51 and a 41... TPS. I adjusted my TPS, cleared my codes, and tried again. VAROOM! :biglaugh: Started up instantly and sounded sooooo nice! I was about to set the timing (which was at ~22 degrees) but I noticed a decent sized oil leak so I cut the engine to fix the leak. I left car for the night and today I go to start it up to again. Crank crank crank but no start. I moved the CPS a little clockwise to retard the timing. Crank crank crank but no start. Sometimes it would almost catch, cough, whatever you want to call it. I noticed on my boost gauge that when it sputtered, the pressure would spike bigtime!! like maxing out my 30 psi gauge :aigo:..... That can't be good.
I didn't know what the hell was wrong. I didn't change anything from the night before when the engine was just purring. The engine was cranking slower at this point so got a spare battery connected to boost it. After a bit a cranking this time, the car sputtered and started. But now it is running very rough, barely idling at ~400rpm.
I tried to set the timing as best I could but it was wavering pretty bad. I pulled the jumper from the diag box and it jumped the timing up to about 13-14 degrees as it is supposed to.
I didn't know what else to do so I just cut the engine. I checked the engine codes again but there are none. I double checked the TPS and it hits the IDL contact where it is supposed to. I hooked up a compressor to the intake to pressurize it, to see if I blew anything apart with the boost spikes and for the most part everything sounds sealed... .EXCEPT... somewhere on the intake side or near the rear, I can hear a leak. I can't pinpoint the source of the sound (any tips?). Not sure if it is an actual leak or just air getting past the valves in the engine but the scary part is that there is a gurgling sound accompanied with the air sound. Please tell me this is somehow normal. :1zhelp:
I want to try avoid running it until it is ready to get on the highway to set the rings. Any ideas?
I just realized this is a long post soooo
CLIFF NOTES:
- New rebuild. After fixing TPS code, engine fires up and sounds NICE at 22 degress.
- Next day, after changing nothing except fixing oil leak, engine won't start. Notice major boost spikes while sputtering during cranking.
- Eventually get it to start after boosting with another battery, but now runs like crap!
- Now have a weird air leak noise with a gurgle to it.