Gotcha Charlie.  I knew that, having a senior moment I guess.

Butch Lawson

Manchester,  TN

No.  If you do that, then the cam timing will be wrong and it will not matter if the ignition timing is correct, the engine will not run.

It would be impossible to do that if the gears are installed correctly, with the dots at 3:00 and 12 pins between.  They only go on one way.


Lawrenceville, GA

If the gears are installed with #1 on compression, can the distributor be moved 180* to compensate?

Butch Lawson

Manchester,  TN

With the gears installed correctly, #1 and #6 will always be at tdc at the same time only one will be on compression and the other will be on exhaust.


Lawrenceville, GA

Thanks Ron. All the years I've worked on these y-blocks not sure I was aware of this. I lined the timing chain up then put everything together, set the motor in, then rolled #1 up and set the distributor in. 

Dave, I would trust Charlie's advice on this. He has helped me out many times!

Rono

  Ron Lane,  Meridian, ID

Wow !! I can not believe I forgot that might be the case. Thanks.

No.  That is a common misunderstanding.  It is with #6 at tdc on compression.


Lawrenceville, GA

Is the timing marks on the cam and crank gear 12 teeth apart on #1 compression stroke?

If it was running, then you are mistaken.  Remember, it takes 2 revolutions of the crank for 1 revolution of the cam so at one point it will appear to be 180 off.


Lawrenceville, GA