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  #1  
Old 07-24-2014, 01:19 PM
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Default Timing Marks

On my 62, the manual shows the timing mark as a "O" that is supposed to line up with the 0,3,6,10 on the harmonic balancer. I do not see or have the "0" marking but have 2 "X"s instead. Which "X" would I use to line up to 8 degrees BTDC?
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Old 07-24-2014, 01:54 PM
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You should have a raised dimple on the balancer that you can feel. That is your timing mark. The 0,3,6,10 pointer should be on the timing cover. Ford changed the timing setup quite a few times over the years. I'm assuming your motor is the original. Earlier FE models had the timing degrees on the balancer and just a pointer on the timing cover. Without seeing a picture I can't tell what setup you have. That being said I've never seen X's used as timing marks.

John
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Old 07-24-2014, 02:54 PM
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Thanks John,

I will post some pictures. I have the pointer with the timing marks on the timing cover. The pointer at 8 is pointing at one of the Xs on the balancer. It seems to be running smooth there. I did see the raised dimple after all but it is far from the Xs(about 1/4 turn . With the car running and timing light pointing at the balancer if I rotate the distrib so the raised dimple is heading towards the numbers on the pointer, the engine bogs down and wants to stall. So I put it back towards the two Xs and plugged the vacuum line back into the distributor.
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Old 07-24-2014, 03:03 PM
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Sometimes the balancer will spin and that's why the timing marks are off. There are a number of ways to find out where TDC is. You can also set the timing using a vacuum gauge. Retard the timing until the vacuum goes down. Then advance it until you get the highest vacuum then retard it slightly. If it pings when you drive it then retard it a little more.

John
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Old 07-24-2014, 03:24 PM
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Here are the pictures. First time ever doing this and I do not own a vacuum gauges or compression gauges. They will be my next investments. You can see the first 0 on the pointer pointing at the second X on the balancer. The raised dot is about 7 inches around the circumference of the balancer. I tried to get a picture of it but it did not turn out. When I tried to bring that raised dot towards the pointer the engine tried to stall so I figured that wasnt the raised dot I was looking for. I will try again later. Must drive my sons to soccer practice.
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Old 07-24-2014, 04:05 PM
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Hi John,

I was thinking what you said. If the dot spins is that called centrifugal advance and servicing the balancer is required. I thought I saw that raised dot bouncing back and forth when I was focusing the timing light on the Xs. Sorry I new to this and am just guessing. I will do some research when I get home.
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Old 08-12-2015, 08:11 PM
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Default Timing Marks

Yes, there is supposed to be a raised bump, but I also do not have one. I spun the balancer and ran my finger along the entire circumference. There are hash marks and an "XX", but nothing that really lined up with TDC. So I made my own mark using a Q-Tip and some white paint.

This weekend's small job is to set 6-10 degree BTDC, per Joe's recommendation. That should be as efficient as I can get before I start this winter's project: REBUILD! LOL! I figure once El Nino hits So Cal, I'll have lots of rainy days to work on her!
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Old 08-12-2015, 09:16 PM
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Did you see any numbers on the balancer. It's possible someone replaced it with a balancer from a later model 390 that has the numbers on the balancer instead of the pointer.

John
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Old 08-13-2015, 11:53 AM
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Default Timing Marks

Yes, there are a few #'s on the wheel, plus a series of "|" marks, in addition to the "XX" marks. I intuitively would think the "XX" were the mark to align, but there's just no clear indication in any documentation anywhere. So, I figure the paint dot I applied at TDC is as good as I am going to get. It trues up the max push by the cylinder to the "0" indicator.

Is this correct in your point of view?
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Old 08-13-2015, 12:56 PM
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If you have numbers on the balancer then they are your timing numbers. If you also have numbers on your timing pointer than the balancer was replaced at some point. You can certainly do as you did and find true TDC rather than rely on the balancer. I'm not sure how you found true TDC but the way I do it is to turn the crank until the rotor points at the #1 spark plug terminal on the distributor cap. Then I remove the driver side valve cover and make sure the #6 valves are perfectly even with each other.

John
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