D17 series1 timing

AllisD17-1

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We have an Allis D17, serial #12249.
The governor was running wide open, so my husband took the tractor apart and discovered that the governor gear and at least one of the weights were broken. I found the parts online and all but the governor gear are in. My husband has everything cleaned up and ready to put the tractor back together once the gear arrives.
However, he can't figure out how to get the distributor timed, because the cam gear only has a timing mark on the crank gear side. There is no timing mark on the governor side on the cam gear.
Can someone please help us?
Thank you...
 
If you would like to e-mail me, so that then we could talk, I would talk him through it. I'm not going to try to type it out. Maybe someone else will.
 
Mr. Bancroft, I don't know why you didn't get my e-mail. I received notification on my end that it was sent. However, here's what I think about our question....feel free to correct me if I'm wrong. I don't think we HAVE to set the governor gear in this tractor. I think that we just have to set the distributor with the #1 spark plug. Am I right? If I am, I have a question. Why is there a timing dot on our governor gear? Is it because this governor gear may also be used in a tractor that takes a cam gear that DOES have a timing dot that is to be matched up to the dot on the governor gear?
 
Governor gear does NOT need to be timed....don't worry about any "dot" on the gear. The #1 cylinder is on TDC when the crankshaft pulley setscrew is pointing straight down. So, if you get #1 on it's compression stroke and point the pulley setscrew straight down, then make the distributor rotor tang point at the #1 spark plug wire on the dist cap. Final ignition timing should be done with a timing light shining thru the 1 inch hole on the right side of the flywheel bell housing. Set timing to FIRE or F-30 with the engine at full throttle.
 
You are correct. Just time the distributor to the engine as described by DrAllis. No need to time the governor. If you are familiar with doing that(as with any engine) then you should be OK.

Sorry, I can't answer your question on the marks. Many possibilities. I've read enough on here to think that anything is possible! AC made little changes along the way, not necessarily documented, or tied to a serial number break. Those engines had multiple applications, one being a power unit, with a magneto instead of a dist.
 
(quoted from post at 20:42:04 06/22/16) Governor gear does NOT need to be timed....don't worry about any "dot" on the gear. The #1 cylinder is on TDC when the crankshaft pulley setscrew is pointing straight down. So, if you get #1 on it's compression stroke and point the pulley setscrew straight down, then make the distributor rotor tang point at the #1 spark plug wire on the dist cap. Final ignition timing should be done with a timing light shining thru the 1 inch hole on the right side of the flywheel bell housing. Set timing to FIRE or F-30 with the engine at full throttle.

Thank you DrAllis! I don't know that my husband knows "how" to do this, so this info will be a big help to him. :wink:
 

Thank you for your help Mr. Bancroft. It tickles me that I figured out the governor thing before my husband. He's the mechanic in the family(but he did teach me how to rebuild auto engines and carburetors when we were younger). I think he might have been thinking that was the way it was done, but didn't want to maybe destroy new(or even more older) parts without being sure. He's in the process of putting the tractor together now, because he doesn't need to have all that apart just to put the new governor gear in when it finally gets here.
Thanks again... :)
 

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