85 GSL-SE... new rebuild, timing not quite right?

scarsofcarma · 08-02-2013, 07:37 PM

This question is regarding my 85 GSL-SE

My buddy just recently rebuilt the engine and we just got it running yesterday. Not exactly running perfect yet though... for example, the timing isn't quite right. The main pulley is set right, but as far as the distributor goes if we set it right on the dot, it only runs on the orange 'trailing' mark when the dizzy is turned fully retarded. Or, if we set the distributor off one tooth it runs on the yellow 'leading' mark when its turned fully advanced. Nothing in between.

It idles better on the orange mark so for now that's where it set. Any idea why the timing is off?

scarsofcarma · 08-03-2013, 12:12 AM

Oh... duh... I know why its not set right. We were assuming TDC was the yellow 'leading' mark on the front pulley. We have to set TDC with the flywheel.

08-02-2013, 07:37 PM	#1
scarsofcarma Rotary Fanatic Join Date: Aug 2013 Location: Antioch, Ca Posts: 101 Rep Power: 12	85 GSL-SE... new rebuild, timing not quite right? This question is regarding my 85 GSL-SE My buddy just recently rebuilt the engine and we just got it running yesterday. Not exactly running perfect yet though... for example, the timing isn't quite right. The main pulley is set right, but as far as the distributor goes if we set it right on the dot, it only runs on the orange 'trailing' mark when the dizzy is turned fully retarded. Or, if we set the distributor off one tooth it runs on the yellow 'leading' mark when its turned fully advanced. Nothing in between. It idles better on the orange mark so for now that's where it set. Any idea why the timing is off?

08-03-2013, 12:12 AM	#2
scarsofcarma Rotary Fanatic Join Date: Aug 2013 Location: Antioch, Ca Posts: 101 Rep Power: 12	Oh... duh... I know why its not set right. We were assuming TDC was the yellow 'leading' mark on the front pulley. We have to set TDC with the flywheel.