MadMarv
Apr 29th, 03, 11:14 PM
Sorry if this bugs anyone, I posted my original question in engine thinking it was in troubleshooting.
I'll cut to the chase.. outside of a vacuum leak, ignition problem (like getting my wires onto the plugs good enough, or firing order), what could cause an engine to run at say above 1500 rpms, but not idle on its own?
When I started the engine up, it came right to life, idled @ 1000, then dropped to 750. I noticed it had odd throttle response and massively excessive amounts of unburt gas through the exhaust, so I revved it, it stumbled then revved, then dropped to 500 rpms and died. It would restart fine, but I'd have to gas it to keep it going. Also, just to note.. the time between my revving it after startup was a good 5-10 min of run time, enough to get a cold rebuild up to 200 deg. wat. temp. I filled up the trans (it only took a little more than half a pint.. which I find odd for a trans w/ a new converter that didn't want to swallow prelube fluid..), checked for leaks, etc., then revved it.
I decided to cool my nerves for the night, let the engine cool off so I can stick my hand down near the headers to fiddle with the plug wires and stuff. I'm going to check for vacuum leaks and firing order stuff in the morning-- what else should I be checking?
The engine isn't new.. just a down to the nit and grit professional rebuilt & dyno with a different camshaft.
I have done just a few things to the car, aside from removing and installing the engine. I replaced the torque converter for a looser one, installed an aux trans cooler inline with the in radiator one, and opened up my staple shifter console to replace the MSD 6000 rpm pill with a 6600 rpm pill.
Again-- sorry for the two forum post, but its past 11 here and I just want to scream. I'd lik to go out and fiddle with it now, but I know i'll just wake everyone up, get the engine too hot to work on etc.
Thanks..
matt
I'll cut to the chase.. outside of a vacuum leak, ignition problem (like getting my wires onto the plugs good enough, or firing order), what could cause an engine to run at say above 1500 rpms, but not idle on its own?
When I started the engine up, it came right to life, idled @ 1000, then dropped to 750. I noticed it had odd throttle response and massively excessive amounts of unburt gas through the exhaust, so I revved it, it stumbled then revved, then dropped to 500 rpms and died. It would restart fine, but I'd have to gas it to keep it going. Also, just to note.. the time between my revving it after startup was a good 5-10 min of run time, enough to get a cold rebuild up to 200 deg. wat. temp. I filled up the trans (it only took a little more than half a pint.. which I find odd for a trans w/ a new converter that didn't want to swallow prelube fluid..), checked for leaks, etc., then revved it.
I decided to cool my nerves for the night, let the engine cool off so I can stick my hand down near the headers to fiddle with the plug wires and stuff. I'm going to check for vacuum leaks and firing order stuff in the morning-- what else should I be checking?
The engine isn't new.. just a down to the nit and grit professional rebuilt & dyno with a different camshaft.
I have done just a few things to the car, aside from removing and installing the engine. I replaced the torque converter for a looser one, installed an aux trans cooler inline with the in radiator one, and opened up my staple shifter console to replace the MSD 6000 rpm pill with a 6600 rpm pill.
Again-- sorry for the two forum post, but its past 11 here and I just want to scream. I'd lik to go out and fiddle with it now, but I know i'll just wake everyone up, get the engine too hot to work on etc.
Thanks..
matt