Quick question about Duraspark II

[Anonymous]

I converted from stock to a DSII w/MSD about 2 years ago.
If I remember right I had to rotate the DSII 180 deg from where the original distributor rotor was pointing so the engine would run and I could set the timing.
Does this sound right? Has anyone else had this problem?

DSII is rebuilt from a 79 Fairmont.

 

[CoupeBoy]

Usually the only time you need to rotate the dist 180° is if you put installed it incorrectly, which I have done more then a few times. Do you remember if you happened to have rotated the engine for anything while the dist was out?

When me and my buddy replaced his old points dist we had a used one from a wrecking yard and pulled the old and dropped the new right in the same location and fired it up, after we fixed some old broken wiring..

-ron

 

[pedal2themetal45]

HI
I agree the only reason you would have to rotate it 180* is if you droped it in 180* out..
Remember the timming marke comes up to TDC twice once for TDC of the compression stroke and once for the TDC of the exhaugst stroke.
Tim

 

[CobraSix]

If you didn't rotate the engine to TDC on #1, and then dropped in the DS2, you probably just drop the dizzy it at a different orientation to the cam.

Does it matter? Not really. There is nothing saying that #1 post on the dizzy has to be at a certain point. I never set mine that way. I just usually drop my dizzy it, rotate the engine to TDC on #1, see where the rotor is pointing, and then make that the #1 post and just put the wires in the correct order from there.

Slade

 

[Anonymous]

Humm, I must have done something wrong then. Just wanted to double check before I installed my new engine.

Thanks,

Brian

 

[Anonymous]

I had to change the spark plug wires on mine rotated 1 plug setting back to get my timing set up. The vacuum advance needed to be rotated away from the block. The # 1 mark on the distributor is not leading to the # 1 plug wire. This distributor is much larger in diameter than the original. As long as the ditributor fires in the proper sequence and at the correct timing it doesn't matter 180 degree one way or the other or as mine is set up 20 plus degrees to line the vacuum advance up with the block.

 

[Anonymous]

That's probably all I did in the begining. Thanks for all your input.