Why.

[jcvhsle]

Ok guys firstly, been awhile since I've been on. I recently installed my new motor. Set the motor to tdc 1 to install dizzy. All good. When it's running the timing mark doesn't even register in the the degree indicators, thoughts please. Crank and cam was set by the old dot method and nine links. I have to turn the dizzy clockwise 90 degrees to get the timing mark in the zone but the car then stalls
Cheers jc

 

[EYY]

Check that the balancer hasn't spun

 

[Batca]

Check that the balancer hasn't spun

Good possibility, I had one with a flogged key way once. Drop the belt off and check for play.

 

[jcvhsle]

Good possibility, I had one with a flogged key way once. Drop the belt off and check for play.

All new, full rebuild

 

[wildfiremaint]

For a carbureted engine you
have to disconnect the vacuum
hose from the dizzy and block the rubber hose with a small screw or a golf tee so there is no vacuum leak .
Then you can adjust the timing.

 

[EYY]

have you made sure that the TDC mark is actually at TDC for number one, and that you've got the dizzy in the correct spot? Even if you think it's right, check it again.

Apart from that, was the timing cover original, or from a later model?

 

[Batca]

Did you block off vacuum advance and is the dizzy in good condition with no shaft play. The mech advance weights etc could be worn but not likely that's more at speed.
Perhaps double check the cam timing?

 

[jcvhsle]

Did you block off vacuum advance and is the dizzy in good condition with no shaft play. The mech advance weights etc could be worn but not likely that's more at speed.
Perhaps double check the cam timing?

Full rebuild, everything is new. Blocking the vac advance made no difference. Will reset dizzy again for the 4th time.

 

[EYY]

Is it a genuine Bosch dizzy or a copy?

 

[jcvhsle]

Is it a genuine Bosch dizzy or a copy?

Genuine Bosch rebuilt and curved to match the cam