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Tiny
JMV81
  • MEMBER
  • 1989 FORD F-250
  • V8
  • 2WD
  • AUTOMATIC
Hi I having a problem whit a ford 5.8 it won´t start when I put on 10 degree only on 20
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Thursday, December 2nd, 2010 AT 5:29 AM

5 Replies

Tiny
CJ MEDEVAC
  • EXPERT
Hey Feller

Maybe the outer ring of your harmonic balancer has "Slipped" thus throwing off the Calibration of the Balancer to "Actual TDC" [Top Dead Center](When # 1 piston is at its highest point). The Balancer has a rubber ring in-between the inner part and outer part. Sometimes the outer part will move, from its "Zeroed" location, many times because the rubber deteriorated

The 1st time I ever encountered it, my friend told me to drag my timing mark around to "0" (sorta did this with the balancer mostly removed from the crankshaft)

We removed the old one, Then WITHOUT MOVING A THING, we barely stuck another Re-manufactured one on. When the key-way is lined up, the REMAN was not on "0".I did not fully install it, till I was convinced that was the problem. Kinda EZer to take a Part back to the store if it is not showing signs of being installed!

Are you Timing Correctly? Normally you remove and Cap off the vacuum advance line (the distributor vac hose) while you time a vehicle, also insure your IDLE RPMs are close to specs when you time it. Just remember to put it back on, when you finish!

I have seen distributors "STICK" while they are advanced. This too will throw timing off.

If your rig has "Jumped Timing" (timing chain, jumping a cog), 10 degrees probably would not make it run/ run smoother. It would more than likely, not run worth a crap, much at all!

I do not know a lot of specifics on your rig. Just trying to help the best I can. Hopefully it was something simple, like the vacuum line, not being removed during your timing procedure.

I hope this helped you

Merry Christmas to you!

Respond with NO "Bah-Humbugs"

The Medic

The Medic
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Thursday, December 2nd, 2010 AT 2:07 PM
Tiny
JMV81
  • MEMBER
Yes I change the harmonic balancer for other and still the same I even change the timing chain and same it could be the ignition module'
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Thursday, December 2nd, 2010 AT 2:22 PM
Tiny
CJ MEDEVAC
  • EXPERT
What about the Vacuum advance line, are you removing it to TIME, then replacing it afterwards? "AFTERWARDS" might show the advance, if you watch the "TIMING MARKS" while someone else re-attaches the hose to the distributor. Are you at correct idle speed while performing the timing. Centrifugal advance would "Play In" if you are too high with idle.

You ain't by chance using a Timing Light with a Advancement adjustment on it?

The Medic
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Thursday, December 2nd, 2010 AT 5:36 PM
Tiny
JMV81
  • MEMBER
It s doesn t have a vacuum line its fuel injection my bad
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Thursday, December 2nd, 2010 AT 9:18 PM
Tiny
CJ MEDEVAC
  • EXPERT
Truly My bad--I really do not know your rig well. Just trying to help you, so that you might not have to wait a long time to get assistance!

I do not know the procedure to time it, but surely something has to be unplugged or something to do it correctly.

Do you have a repair manual or can you maybe call a parts store to find out, what you possibly might be doing wrong?(If anything)

The Medic
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Friday, December 3rd, 2010 AT 12:47 AM

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