Double Timing Marks?

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GregL
Posts: 97
Joined: Tue May 16, 2017 8:44 pm

Double Timing Marks?

Post by GregL » Sat Jul 13, 2019 7:54 pm

My harmonic balancer appears to have two sets of timing marks, about an inch and three quarters apart. If you look from the front, with the keyway at the 12:00 position, the first set is at about 2:00 and the second is at about 3:00.
Any explanation for this?
Thanks, Greg
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paul2748
Posts: 1243
Joined: Sun Mar 15, 2009 12:23 am
Location: Northeastern New Jersey

Re: Double Timing Marks?

Post by paul2748 » Sat Jul 13, 2019 9:18 pm

The only thing that I can think of is that the balancer was sent out for repair, was completely disassembled and put back together wrong so new marks were set into. Possibility, but not probable. You will have to get # 1 cylinder at top dead center to check which set of marks are correct.

Of course, it could be a factory error??
1956 Fiesta Red 312
1954 Ford Victoria 312
1948 Ford Convertible Street Rod 302

GregL
Posts: 97
Joined: Tue May 16, 2017 8:44 pm

Re: Double Timing Marks?

Post by GregL » Sat Jul 13, 2019 10:24 pm

Thanks Paul.
I also noticed this; if you look close you can see the lower set of marks align with a groove in the front pulley. Could that be a clue?

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paul2748
Posts: 1243
Joined: Sun Mar 15, 2009 12:23 am
Location: Northeastern New Jersey

Re: Double Timing Marks?

Post by paul2748 » Sun Jul 14, 2019 9:37 pm

Possibility - but I never looked at the timing marks vis-a-vie the groove to see the relationship.
1956 Fiesta Red 312
1954 Ford Victoria 312
1948 Ford Convertible Street Rod 302

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