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Farmall & IHC Tractors Discussion Forum
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Setting timing correctly on my 44 H

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tanner clark

12-31-2004 14:13:07




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Ok I know it is New years eve but today was the first chance I have had in a while to trouble shoot the tractor. Ok the old Dist. I was able to make the shaft seperate the points 4 times per revolution, but it wasn't spinning evenly so only 1/4 of a revolution would be at the 0.020 gap and the rest were wider. So I hooked up the other Dist. and it works perfectly, and I have power to the spark plugs, so the electronics are finally completed. So now I need to time the Dist. and the motor. I am reading the manual on how to time the Dist, and then also how to time the Dist to the motor. It seems easy on paper but I have a few questions. When setting the Dist to the Motor it says to set the no:1 cylnder to TDC. to determine which plug gets the no:1 plug wire. This sound good but how do you know when it is at TDC without taking the head off? I have been told to take the plug out and feel the cylinder with your pinky but I have not felt anything in there. The other question is, is that the book says the no:1 cylinder is the one closest to the radiator, however when I look at the motor it shows the firing order left from right (Rear to front of motor) as 1-3-4-2, so now I am confused on what to do or which one to set? I am trying to learn as best I can so please bare with me. But the main thing is how to set the motor and no: cylinder to TDC so you can get the timing correct? Thanks in advance.

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tanner clark

12-31-2004 17:32:29




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 14:13:07  
Thanks for comments Hal, and others. I will try these things. But the tractor is not running so I can use the timing light method as of yet. But I hope once I set the TDC and get the plugs put on correctly that I will at least get it to fire. Can you set TDC on no:1 if all you have is the starting motor to use?



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tanner clark

01-01-2005 14:32:09




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 17:32:29  
Ok guys, when I got it to backfire I thought I set the TDC on the no:1 cylinder, and the wires from the spark plug to the Dist. 1 on 1, 2 on 3, 3 on 4, 4 on 3. I know this is wrong but this is what I did and it backfired on me. I had set the TDC with the single notch on the crank and not the double notches. I felt for the compression I let go of the starter and it stopped right on the single notch so this is when I tried firing it up, and it backfired. I tried this a couple of times and it would only backfire each time I tried it. Plus it blew out carbon each time out the exhaust. Eventhough the wiring was incorrect I thought it might be right and that I was just on the exhaust stroke and not the compression stroke, so I thought I just needed to change it over 180 degrees, I did this and then I didn't get a back fire or anything. So now I am back to square one. After reading my owners manual, it says to set the TDC on no:1 by hand cranking the motor until the timing pointer is at the first of the double notches. Is this correct, by doing this will the TDC be set correctly on the no:1? And then you need to time the Dist. to the motor, correct?

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riverbend

01-01-2005 07:31:08




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 17:32:29  
Once you get close to TDC on #1 with the starter, you can put the tractor in 5th gear and rock the rear wheel. If you have the plugs out, you might be able to turn it over with the fan belt.

With the valve cover off, #1 will be at TDC, of the compression stroke when the pointer lines up with the mark on the pulley and both valves on the front cylinder are closed (you will be able to wiggle both rockers arms with your fingers).

On some motors you can see the edge of a valve through the spark plug hole when #1 is at TDC between the exhaust and intake strokes. I have not looked lately, but seem to recall that does work for the H. If not, someone will be along to set things straight.

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El Toro

12-31-2004 15:31:51




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 14:13:07  
Hi Tanner, Why don't you use a timing light. Mark the knotch or groove on the pulley with a piece of chalk. Hook the timing light to the battery posts and the other lead to No1 sparkplug
that is closest to the radiator. My light is the inductive type that you just clip over the sparkplug wire. You may have a use piece of copper tubing to slide over the end of plug and hook the plug wire to the tubing, then hook timing light to tubing too. Run engine at an idle and switch on timing light. The light should blink every time the engine fires on No1. Note where chalk is on damper pulley. Should be close to pointer. You move distributor gently until both marks are aligned. Easier if you have a helper. Loosen distr. just enough so it can be
rotated if needed. Retighten when timing is set.
Hal

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tanner clark

12-31-2004 15:58:20




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 Re: Setting timing correctly on my 44 H in reply to El Toro, 12-31-2004 15:31:51  
Thanks for comments Hal, and others. I will try these things. But the tractor is not running so I can use the timing light method as of yet. But I hope once I set the TDC and get the plugs put on correctly that I will at least get it to fire. Can you set TDC on no:1 if all you have is the starting motor to use?



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El Toro

01-01-2005 06:45:04




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 15:58:20  
Hi Tanner, Just checking with you in 2005 to see if you got that engine running. It's nice here in MD for January. It would be a good day to fire up that engine. Good Luck, Hal



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tanner clark

01-01-2005 08:26:46




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 Re: Setting timing correctly on my 44 H in reply to El Toro, 01-01-2005 06:45:04  
Hey Hal, I must have done something correct because I got it to backfire, so this must mean I set it on the exhaust stroke instead of the compression. Anyway I set it to TDC and the pointer was just in front of the single mark on the pulley. So I wired everything up and then it backfired only. Should TDC be set with the double set of notches or just the single one? It is hard doing this with the starter motor.

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El Toro

12-31-2004 18:25:09




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 15:58:20  
Hi Tanner. If you want to find TDC on the compression stroke, remove No1 plug near the radiator and hold your thumb over the hole while
someone either cranks the engine with the hand crank or they bump the engine very gently with the
starter. (Very gently means you want the engine
to crank very slowly so you do not crank past TDC). When you begin to feel pressure against your thumb (stop) cranking. Look for the first notch on the pulley, it should be near the pointer. Gently crank the engine until this first
notch is aligned with the pointer. Your No1 piston is at TDC and your rotor should point to
No1 plug wire in the distr. If it does your engine is in time. Your rotor turns clockwise and the next plug in the firing order is No3, the plug wire goes to No3 sparkplug, then No4, and then No2. Your engine should start then with some choking. Remember No1 plug is near the radiator. Hal

notch

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El Toro

12-31-2004 15:31:20




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 14:13:07  
Hi Tanner, Why don't you use a timing light. Mark the knotch or groove on the pulley with a piece of chalk. Hook the timing light to the battery posts and the other lead to No1 sparkplug
that is closest to the radiator. My light is the inductive type that you just clip over the sparkplug wire. You may have a use piece of copper tubing to slide over the end of plug and hook the plug wire to the tubing, then hook timing light to tubing too. Run engine at an idle and switch on timing light. The light should blink every time the engine fires on No1. Note where chalk is on damper pulley. Should be close to pointer. You move distributor gently until both marks are aligned. Easier if you have a helper. Loosen distr. just enough so it can be
rotated if needed. Retighten when timing is set.
Hal

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El Toro

12-31-2004 15:30:49




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 14:13:07  
Hi Tanner, Why don't you use a timing light. Mark the knotch or groove on the pulley with a piece of chalk. Hook the timing light to the battery posts and the other lead to No1 sparkplug
that is closest to the radiator. My light is the inductive type that you just clip over the sparkplug wire. You may have a use piece of copper tubing to slide over the end of plug and hook the plug wire to the tubing, then hook timing light to tubing too. Run engine at an idle and switch on timing light. The light should blink every time the engine fires on No1. Note where chalk is on damper pulley. Should be close to pointer. You move distributor gently until both marks are aligned. Easier if you have a helper. Loosen distr. just enough so it can be
rotated if needed. Retighten when timing is set.
Hal

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MagMan

12-31-2004 15:21:55




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 14:13:07  
Hi Tanner , No thats just the way IH stamped it on the block it doesnt mean what it looks like the #1 is in the front toward the rad. Now you stick your finger in the spark plug hole to get compression stroke when you feel compression you line up the pointer in the front of the motor and that should be top dead center. If it pops and back fires you didnt have compression stroke. JON

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Bob

12-31-2004 15:21:12




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 Re: Setting timing correctly on my 44 H in reply to tanner clark, 12-31-2004 14:13:07  
With help, slowly turn the engine over with the crank, while holding a finger OVER (not IN) the #1 (front) spark plug hole,

As the #1 piston is coming up on compression stroke, you will feel the compression pressure blowing past your finger. At the instant that the blowing ceases, just before you can feel suction with your finger, the #1 piston will be at TDC of the compression stroke, which can be confirmed with the timing marks.

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