N Board Forum - Expanded Thread Page

Subject: Starter and timing problems

[Back] [Return to Top of Forum]

Tinkerer60    Posted 08-18-2017 at 12:28:56 [URL] [DELETE]        [Reply] [No Email]  
  • Starter and timing problems
  • First off, I am thankful for all of the positive input I have received here on my starter problem. We last left our mentally challenged self proclaimed shade tree guru ( me ). I was pretty sure reading your replies that I would have to replace the flywheel. On further investigation ( and finding no teeth that were damaged enough to cause the catastrophic failure of the bendix on the starter) I found that if timing was not correct and there was a backfire, and since my 8n is a 12 volt conversion, and a front loader attachment. Then there is a higher probability that a backfire would be of enough force to shatter said bendix.
    Being on my third starter I needed to regroup. I set my points and gaps according to the specs I have at the required gaps. Now I have re-read all the info I can find on setting the timing. My timing went out when my shear pin on my starter gear sheared off.


    The steps needed to set timing I have garnished is: Find TDC.

    Adjust distributor so that the points are about to open on the first cylinder.

    Setting points I have found online 015. plugs at .015. done.

    What else could I be missing that would cause backfire at starting cycle? All coil wiring points cap plugs are brand spanky new.

    As always look forward to you guys informative if not often humorous input. I know on this vehicle I'm a newbie. I'm having to go back to the stuff my Dad taught me on "by ear" tune-ups. I think he would be having a good belly yuck-up at my antics. He was a foreman at the International Harvester repair shop. :)

    Rustyal    Posted 08-19-2017 at 17:11:04 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Starter and timing problems
  • I think your problem started a couple months back. You posted the flywheel had a couple bad teeth. It is common for the bendix to break. I've replaced one or two. On tractors with perfect flywheels. So I'm thinking that is a problem. Then the backfire problem could be another problem.

    HCooke    Posted 08-19-2017 at 09:09:23 [URL] [DELETE]        [Reply] [Email]  
  • Re: Starter and timing problems
  • Very important -- we can't help you until we know if your tractor has a front mount distributor or a side mount distributor!

    Tim Daley(MI)    Posted 08-19-2017 at 05:14:43 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Starter and timing problems
  • Tink-
    When making a post like this, it is always a good idea to let the reader know up front what it is you are talking about as far as make, model, year, and any other pertinent information regarding your subject, regardless if you listed it in a prior post. We all don't read every post let alone remember what each person was asking or what tractor they have. I rarely do this, but I just scrolled down the entire N-Board going back to July 1, 2017 and did not see anything you posted prior so once again please tell us the vital details so we can better help diagnose your issues. Model year and make is important, if one was to assume anything, we can surmise you have a vintage Ford ergo why you're on this board, so is it a 9N, 2N, 8N, or NAA model, and does it have a front mount distributor or side mount? Is it 6-volt/positive ground with a generator and voltage regulator/roundcan cutout, or, if it is a 12-volt 'conversion'? I use that term loosely because I have seen in my shop, and read here, of so many 12-volt conversions done improperly which usually turn out to be the true root cause of the tractor's failure to start and/or run. Starters don't care if 6 volts or 12 volts and not causing your backfiring issue nor busting the Bendix drive. You could have something wired incorrectly, or something not set correctly (points) -see LINK below to JMOR's Wiring Pictograms and download/save a copy to keep handy for reference. He ha s shown detailed sketches of complete with pictures, every possible CORRECT way to wire these old N's. My next question would be where are you getting these starters from? The original parts on these old Ford tractors are made to be rebuilt -starters, generators, water pumps, governors, carburetors, distributors, hydraulic pumps, plus many more and ALWAYS is the better choice rather than buying something made 'new' that mostly comes from Cheena where Quality Control is a foreign language.

    Regards
    Tim Daley(MI)

    Bruce (VA)    Posted 08-19-2017 at 06:29:09 [URL] [DELETE]        [Reply] [Email]  
  • Re: Starter and timing problems
  • " When making a post like this, it is always a good idea to let the reader know up front what it is you are talking about as far as make, model, year, and any other pertinent information regarding your subject, regardless if you listed it in a prior post. "

    Amen.

    I recall a post a few years go on the YT board when someone asked for advice on setting the points. The very first reply said to pull the distributor, it will only go back one way, off-set tang, so put in on the bench, yada-yada. Apparently the poster did exactly as told, because a day or so later he was back saying the tractor wouldn't start, was backfiring, etc. It took a few more replies to figure out that he had a sidemount distributor.

    steveVa    Posted 08-18-2017 at 23:08:34 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Starter and timing problems
  • Check your plug wires and firing orders.
    Backfires happ when you have a plug wire wrong.
    Also when point gap is wrong.

    36 coupe    Posted 08-18-2017 at 19:40:45 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Starter and timing problems
  • There are some junk starter drives being sold.12volts makes the starter engage much harder.This is why I avoid 12 v conversions.

    clayton ingmire    Posted 08-18-2017 at 17:32:26 [URL] [DELETE]        [Reply] [Email]  
  • Re: Starter and timing problems
  • like bruce said ignition timing the exact point the spark plug fires in relationship to crankshaft rotation is completely different from point gap that you are trying to set even through when the points open this is when the coil discharges its built up voltage and fires the plug your problem is the crankshaft has not turned close enough to top dead center and the plug fires and drives the piston backwards while the starter is still engaged

    r geiger    Posted 08-18-2017 at 13:46:36 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Starter and timing problems
  • "My timing went out when my shear pin on my starter gear sheared off."

    not gonna happen. It will not change the timming.

    Bruce (VA)    Posted 08-18-2017 at 12:47:31 [URL] [DELETE]        [Reply] [Email]  
  • Re: Starter and timing problems
  • Front or side distributor?

    Plug gap is .025 regardless of distributor type.

    Points gap is .025 on a sidemount, .015 on a frontmount.

    Timing is totally different depending on your distributor.

    [Back] [Return to Top of Forum]


    Top