| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,021 Posts1,055,348 Members48,420 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | 
#48299 07/27/2006 2:55 AM | Joined: Dec 2005 Posts: 36 New Guy | | New Guy Joined: Dec 2005 Posts: 36 | Looking for any solutions why the engine would stall when I put the transmission in gear. If you rev the engine you can slip it into drive. Also, when coming to a stop the engine stalls. It's a 1978 straight six 250 coupled with a turbo 400 transmission. It starts up and idles fine. No vaccuum lines attached other than the one from the transmission modulator to the intake. Dual points in distributor. It has a new Rochester monojet 1 barrel carb. By the way,its in a 1953 Chevy PU. I welcome all opinions. | | |
#48300 07/27/2006 6:15 PM | Joined: Oct 2002 Posts: 4,066 Bolter | | Bolter Joined: Oct 2002 Posts: 4,066 | any work done on it prior to this problem
Redryder pixMy HotrodA veteran - whether active duty, retired, national guard, or reserve - is someone who, at one point in his or her life, wrote a blank check made payable to The 'United States of America', for an amount of "up to and including my life."I am fighting cancer and I am winning the fight | Pain is part of life; misery is an option. | | |
#48301 07/27/2006 10:51 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | It could be a bad torque converter or it,s not right for this engine. The 400 was designed for large high torque engines. It soaks up a lot of power. Check for vacuum leaks. The monojet can waller out the gasket between the throttle body & fuel bowl. If the vacuum advance is hooked up to vmanifold vacuum you might change it to ported vacuum & set the throttle idle position up a little.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#48302 07/28/2006 5:15 AM | Joined: Jul 2006 Posts: 58 Member | | Member Joined: Jul 2006 Posts: 58 | Mine had this exact problem. I found that it was as simple as timing, and the two carburetor adjustments (idle speed & fuel/air).
Before assuming your torque converter is screwed up, make sure you find the correct specs and take the half hour to time it right.
Idle Speed: Roughly 550 when in drive with brake on. (Ends up being like between 700-850)
Fuel/Air: Turn screw in all the way towards the carburetor (DO NOT TIGHTEN, carb can break)
back out 3 turns. Start motor. TUrn in the screw slightly to gain best engine smoothness as possible (usually a 1/4 turn in after the 3 turns out).
The timing should be 4 degrees BTDC.
I've seen a lot of people on here say different things about timing that just sounds... well, mroe trouble then it is.
Just go by those specs (or look them up in "The Book" yourself and you'll see that they're right). Either way, timing is the FIRST THING to try for something like this.
1967 Chevy truck "The Hurricane"
WARNING:
This suspect has a tendency to jerry-rig.
"My engine ain't fast, but I pulled a tree trunk out of the ground once."
| | |
|
|
| |
