advanced only
 

i rebuilt my engine it runs great but only fully advanced and i cant figure out what i missed, has anyone else had this problem?

Re: advanced only
 

? Timing

Re: advanced only
 

Put the advance lever fully up. Take out the number 1 spark plug and turn over with the crank. Where did the plug spark? Here is an idea where it should spark. I have a nurex timing gauge but you can estimate using my picture where it should spark around TDC. Should spark somewhere around the near side of the crank as you look down on the engine. I've never had any luck timing with the various manual methods out there. I've tried them all. Best for me was getting the timing gauge costing all of $10. I timed the distributor just this last Saturday by turning over by hand and looking at my gauge. If you don't like the looks of the gauge take it off once it's timed. I also mark the crank pulley by scratching it at TDC and smearing some white paint on it like all modern cars are marked. This was after trying once again the various manual methods out there and not being able to start it. Started first time by my method!

http://i371.photobucket.com/albums/o...psmfmlkwjm.jpg

Re: advanced only
 

Does it run at all in positions other than fully advanced, or does it run poorly when you retard it? In positions other than fully advanced does it have an intermittent, or worse, miss? Does it run smooth or rough? Can you tell if it's missing on the same cylinder(s)? When you retard the timing lever, does it just suddenly die?

Re: advanced only
 

Timing gear off a tooth.

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Have you checked to make sure #1 is at TDC when the timing pin drops in the dimple ? [ correct timing gear alignment]
How are you trying to set the timing ? There is a specific way to do it.

Re: advanced only
 

When you find the solution to this problem, please post it.

Tommy-

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Kborde,

Did you ever find out how to fix this.

I have the same situation.
My engine was rebuilt in the late 80's and only ran a few times. I wanted to make sure everything was still clean and lubed, so I pulled the head, the valve cover and the oil pan. I did not remove the timing cover. While the head was off, I rotated the engine to TDC, and reassembled everything. Then put in the distributor and rotated the cam so that it matched the picture in the below thread post #5. Then I used the spark advance lever to open the points, and set them to .020.
Now the car starts and runs great with the lever all the way down, but really bogs down when I movee the lever up.

Tommy-


https://www.fordbarn.com/forum/showth...ghlight=timing

Re: advanced only
 

did you put the timing pin in the cam gear dimple ??
when you put it at TDC

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??????
Pull sparklers

Spark lever up

rotate engine until timing pin drops in dimple in timing gear.

loosen distributor cam and rotate till points are fully open, set to .020".

Rotate distributor cam until points just start to open with rotor pointing to right fender[#1 in cap] and take out all slop/backlash. Keep in mind the rotor rotation is CCW.

Tighten cam and recheck

Re: advanced only
 

Loosen the distributor cam screw, turn the cam CCW, a trifle, & see if it runs BETTER!
Sounds like your timing's TOO SLOW.--(RETARDED)
Bill W.

Re: advanced only
 

I had the head off and the piston all the way up, and even with thetop opened up and rocking the car around in 3rd gear, I still couldn't get a good feel for the timing pin hole.

I'll try again this weekend.

Tommy-

Re: advanced only
 

Unless the timing pin drops into the dimple, your timing could be 180º off as its possible to try and set the timing with the piston at TDC on exhaust stroke.

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use a small cross point screwdriver to find the timing pin detent

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Got it !

When rotating the engine with the hand crank, I put my thumb over the spark plug hole, to make sure I was on the comprssion stroke, and just shortly after the pressure let up, I felt a small movement of the timing pin. It definitely isn't a pronounced recess, like i thought it would be, but it must be the right spot, because it all works the way it should now.:)

Thanks for your help guys.

Tommy-

Re: advanced only
 

Some of the replacement timing gears have a hole is too small for the pin to fit in. You can address this problem in either of two ways. The first way is to take the timing gear cover off and carefully and enlarge the hole with a drill bit. The other way is to remove your timing pin, chuck it in a drill, and run it against a grinding wheel to make more of a point at the end. On both my Model A's I went with the second method.


Sent from my iPad using Tapatalk

Re: advanced only
 

now your ready for the drag strip