Hei conversion troubleshooting

smokinnjokin said

I think I just figured it out. Rotor phasing in my BRAND NEW distributor. With no advance in, the rotor is just barely lining up with the lead edge of the cap contact. As advance comes in, it gets farther away. With full advance in, its probably sitting directly in between cap contacts. My understand is that it is supposed to be on the trailing edge of the contact at base advance setting, so that as advance comes in it sweeps across the contact.

Click to expand...

If it's between contacts IT IS WRONG. But it should start --or at least is acceptable--to start at one corner, contact to contact, and the advance will sweep the two past each other and "may" end up at the opposite corner to corner. Mechanical advance "only" SHOULD NOT CHANGE phasing very much, because the mechanical advance movement should keep it aligned. It is the vacuum advance that causes the big phasing change.

If you notice EG the Mopar factory distributors, the reluctor has two key slots and an arrow for CCW (B / RB block) and a CW arrow at the opposite key for LA blocks. This is because of distributor mechanics, the phasing is different between B/ RB and LA engines. There has been "reports" that even some Mopar dist. are not properly in phase. Evidence of this would be cap carbon tracking