engine and drivetrain Engines dies while hard turning/braking.

[moose]

I cannot find an answer to this, i searched the forums and google and found nothing really relating to what my problem is. I checked fuse #12 and its good just to put that out there. My engine no matter what gear, or rpm will die in two ways, either when i turn very sharp, or panic breaking. I found i guess a pinpoint or two to try and tackle the brake issue and theres been no luck. The car wont die if its just idling and if you push in the brake pedal hard. I know that was suggested somewhere to see if that made it stall out. Any ideas?

[Simeon]

Ruling out a massive vacuum leak from your booster (just humour us and disconnect and block the hose, try it again ).

Have you checked the low tension wiring around your distributor and coil? Condenser nice and tight on the distributor? What are your engine mounts like? Does your tacho drop immediately when it stalls?

[Simeon]

double post

Edited February 17, 2016 by Simeon

[2002#3]

Same thing here for at least a couple of years many years ago with my '73 2002.  Stalling with a sharp turn.  Only way to restart was to bounce the car at each front fender, sorta like bouncing the car and checking the shocks.  Started right up.  One day I noticed the battery was shifting a few mm and shorting out (my term; probably incorrect); positive post (again, maybe wrong; was in late '70's or so) was touching the end of a body sheet metal screw that was projecting in toward the battery.  Bouncing moved the battery away from the screw.  

 

Does any of that explanation sound reasonable?  That was >40 years ago, and I have cloudy memories of that decade. 

[Hans]

If the tach needle just plops back to zero, I'd be thinking about some electrical problem caused by movement of the engine. I'd think a sudden vacuum leak would cause some engine roughness before conking out.

[KFunk]

Mechanical or electric fuel pump? My electric pumps have always tended to stall the car by flooding it after hard braking at the end of an autocross run.

Which carb or carbs? If fuel level is not right in carb, braking and turning can slosh fuel around.

But besides that, first place I would look is for loose wire at distributor.

Edited February 17, 2016 by KFunk

[roadhog0]

Im gonna say check the float height in the carb. Use to run a backwards 32/36 on Datsun pickup, the thing would stall out every time you slammed on the brakes hard or braked at the bottom of a hill. Was a float issue in that truck. But as others have said, coil wiring does seem like a possible culprit.

[JayMac]

Some Seafoam in the fuel might help if the carb has any gunk in it causing the floats to hang up.

[Alexkafy]

Have you done any work recently with the carb? Check with the floats for inaccurate height diff