Timer problem

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Model T Ford Forum: Forum 2012: Timer problem
Top of pagePrevious messageNext messageBottom of page Link to this message  By Sam Humphries on Wednesday, July 11, 2012 - 11:50 am:

As a newby I have been fighting a timer/starting problem for weeks. I had rebuilt the carb, reset the timer to 2 1/2", installed a new gas line, cleaned the plugs and installed new exhaust manifold including gaskets. I had the T running and starting well until about a month ago when it started backfiring through the exhaust on mag. It ran better on battery but still not good.

Yesterday I removed the radiator and made installing a new timer rod very easy. I also cleaned the timer and filled it with red grease. It continued to be had to start and would backfire when the switch was turned to battery.

Today I finally found my old Simpson Roll Top and began checking the wiring. In doing so I found the the #2 lug on the timer was shorted to the case. I again removed the timer, getting pretty good at it too, and took the #2 contact out. I found small metal shavings that shorted the lug to the case. After cleaning #2 I removed all the contact and cleaned around the opening.

I reinstalled the timer and checked that the leads at the coils were grounding in the right sequence, 1-2-4-3. I reconnected the wiring and attempted to start the T. Nothing doing. I was scratching everything at this point trying to find a solution.

DUH, one does have to turn the fuel valve on to make things work. The T started and runs pretty well. Still need to do some carb adjusting but one more problem solved.

Next up opening the trany to see if the brake band can be adjusted. It goes nearly to the floor to hold the T from moving.

This forum has been the greatest for me as a new to the T world oldie. Thanks millions for the many posts I have read and used the trouble shooting and solutions.

Sam


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jeff Humble on Wednesday, July 11, 2012 - 01:01 pm:

Sam,
Best way to set the timer is by removing a spark plug and checking for TDC. The measurement method may work if you have a ford timer and a ford roller and the timer cover is centered, etc., but it is a bit like checking tire pressure buy measuring the height of the wheel hub from the ground. If you are getting spark with the spark rod retarded and the piston prior to TDC you run the risk of kickback during starting. Only way to be sure is to pull a plug, stick a wire rod down the hole and verify just past TDC.

When you adjust your brake band do not tighten it up to where it feels like a modern brake, but if you are hitting the floor board it is too loose.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Norman T. Kling on Wednesday, July 11, 2012 - 03:10 pm:

All the pedals should get tight about 1 inch above the floorboard. If they are too tight, you risk burning the bands and cracking the drums. Tighten just enough to be able to lock the brake before the pedal hits the floor.
Norm


Top of pagePrevious messageNext messageBottom of page Link to this message  By Royce in Dallas TX on Wednesday, July 11, 2012 - 05:57 pm:

Totally agree with Norman. The brake pedal should be nearly to the floor if adjusted properly.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Craig Anderson, central Wisconsin on Wednesday, July 11, 2012 - 09:36 pm:

Since you have, pretty much, ruled out timer trouble are your SURE the carb is getting enough gas?
It SHOULD pour from the line at the carb.


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