Gremo87
Proven Member
- 128
- 2
- Mar 14, 2013
-
Decatur,
Illinois
[Everything I know about the car is in my profile]
Runs on E85 w/Link, speed density, HKS cams (specs unknown), Evo III 16G with noticable shaft play (in/out, side/side, and up/down) and more. Engine rebuilt less than 3500 miles ago. (0.020" overbore)
Symptoms:
- Boost gauge (aftermarket) reads about 3 in. Hg at idle - this is the same value it reads when the car is off. Vacuum will increase while driving, and boost gauge seems accurate - I can still hit 22+psi, but it takes a hell of a lot longer to get there...and just doesn't feel the same.
- Hard cold starts and will die at least twice before warming up a little (125F on gauge) after which it will stay running
- Unstable idle - will go back and forth between stable and unstable, correct RPM and then not (spikes and dips)
- Sometimes while driving it will idle a little high after I've pushed the clutch pedal in when coming to a stop, and then idle will drop to more appropriate RPM after coming to a complete stop.
- Slow spooling (full boost at like 4500+)
I found a couple small leaks with a boost leak test and fixed those - they made no difference. System will hit 25psi and gradually decline from there. I can hear hissing when I open the oil cap during the BLT. I saw someone say that could be the PCV valve. (if not rings or valve seals) I know it's cheap to find out if that's the culprit, but I'm posting here first because I'm low on money. Does this problem scream anything else to anybody?
I have logs, but I haven't completed the checklist for posting logs (don't have timing light yet, haven't done compression test yet, etc). If anyone's interested in seeing a couple just lemme know and I'll throw one up.
Runs on E85 w/Link, speed density, HKS cams (specs unknown), Evo III 16G with noticable shaft play (in/out, side/side, and up/down) and more. Engine rebuilt less than 3500 miles ago. (0.020" overbore)
Symptoms:
- Boost gauge (aftermarket) reads about 3 in. Hg at idle - this is the same value it reads when the car is off. Vacuum will increase while driving, and boost gauge seems accurate - I can still hit 22+psi, but it takes a hell of a lot longer to get there...and just doesn't feel the same.
- Hard cold starts and will die at least twice before warming up a little (125F on gauge) after which it will stay running
- Unstable idle - will go back and forth between stable and unstable, correct RPM and then not (spikes and dips)
- Sometimes while driving it will idle a little high after I've pushed the clutch pedal in when coming to a stop, and then idle will drop to more appropriate RPM after coming to a complete stop.
- Slow spooling (full boost at like 4500+)
I found a couple small leaks with a boost leak test and fixed those - they made no difference. System will hit 25psi and gradually decline from there. I can hear hissing when I open the oil cap during the BLT. I saw someone say that could be the PCV valve. (if not rings or valve seals) I know it's cheap to find out if that's the culprit, but I'm posting here first because I'm low on money. Does this problem scream anything else to anybody?
I have logs, but I haven't completed the checklist for posting logs (don't have timing light yet, haven't done compression test yet, etc). If anyone's interested in seeing a couple just lemme know and I'll throw one up.