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View Full Version : Need a hand with timing/idle issues on a sbc


Jersyboyy
03-09-2010, 06:35 PM
Anyone near sayreville area than doesnt mind stopping by tom to give me a hand and has a timing gun/vacuum gauge? Im in a tough spot and cant seem to get this thing to idle right without dieing. I think either vacuum leak bad timing or valves are to tight.

I got you on some beer just turned 21 so im excited to be able to do that now haha.

Let me know thanks

Pampered-Z
03-10-2010, 09:00 AM
Currently about 250 miles away, what type of problems are you having? elctronic or mech dist? What is the vac gauge showig?

LTb1ow
03-10-2010, 11:12 AM
How much preload did you use on the valves?

BonzoHansen
03-10-2010, 11:32 AM
vac leak ought to be kind of easy to find with a can of gumout.

benblitz
03-10-2010, 03:57 PM
Is this on your 85 with the 383?

Jersyboyy
03-11-2010, 05:46 PM
Yea im leaving to go back home(NC) tom night. No more time to fool around with it but yea its the 383, I broke it in at 2500 rpms for 30 minutes but cant get it to idle lower than 1200. The guy who built the motor said the valves are perfect, so im going after either a vacuum leak or a carb/timing issue.
Hei dist with vacuum advance.

WildBillyT
03-11-2010, 07:29 PM
Do you have a choke on your carb?

Have you tried to adjust it with the engine up to temperature? Or just right after start up?

Jersyboyy
03-14-2010, 07:55 PM
no choke and i tried adjusting it after it warms up for awhile. Im done with it right now im going to have it shipped to a shop in NC and worked on while Im in bootcamp next month.

Tru2Chevy
03-14-2010, 09:56 PM
Sucks that you couldn't get it running.

What branch of the service did you sign with?

- Justin

Jersyboyy
03-15-2010, 02:20 AM
Yea it needs a good amount of time, decent amount of tools, and a little more money. I was a fool to think I could come up here and do it all in a week with no help.

I ended up doing Air Force Reserve. My job title is going to be a jet propulsion mechanic! Kinda excited to say the least :)