Just wonder how all you all get you points open to measure the gap. Today I got it close with the starter, put it in 4th and pushed it over with the back tire to get the points on the bump and open. Then I measured, set and cleaned. Seemed to run better. It was a bit wide so probably worn a bit. We will see how it handles the spreader next week. FWIW it is a 200
- Thread starter clint s
- Start date
Massey farmer
Member
Leave it in neutral and grab the fan and turn the engine till they
are at the highest point on the distributer lobe.
are at the highest point on the distributer lobe.
Nebraska Kirk
Well-known Member
I usually use the hand crank to turn the engine until the points are open, but then all my tractors have hand cranks. On those few that did not have hand cranks, I just turned the engine over by hand by holding the fan belt tight with one hand and turning the fan with the other. This usually works to turn the engine over enough to open the points.
Massey farmer
Member
And it is a funny story too, thanks.
Nebraska Cowman
Well-known Member
I always pull the distributor off and work on it on the bench where I can see.
Janicholson
Well-known Member
As the points wear the contacts widen some, but the rubbing block wears them closer. Both are at play. A dab of grease on the rubbing block of the points the size of a wooden match head on the side that the cam approaches, helps wear. Jim
Hugh McKinney
Member
You have to be really careful, but on my 450 I just get a big Stilson wrench and put it on the front of the crankshaft that protrudes toward where the hand crank would fit into it (if it worked), and slowly nudge it either way. But be dead sure not to try this unless the ignition system really is disabled.
SadFarmall
Member
On Farmall H and M tractors I use the hand crank to and get an assistant to watch the distributor cam. Works for magneto and coil ingition systems. Set the gap when the bakelite block is at the highest point of the cam on any cylinder. My experience with petrol and kerosene motors of all sorts is that breaker point gaps tend to close down with wear and spark plug gaps tend to open slightly. Setting the timing on a magneto engine is easy. Setting the timing on a coil ignition Farmall is something I have never done - all my tractors are magneto.
SadFarmall
SadFarmall
John G. Hasler
Member
> I always pull the distributor off and work on it
> on the bench where I can see.
I always just loosen the distributor clamp bolts and rotate it until the cam is on top of a lobe, but maybe you can"t do that on a 200.
> on the bench where I can see.
I always just loosen the distributor clamp bolts and rotate it until the cam is on top of a lobe, but maybe you can"t do that on a 200.
Massey farmer
Member
Yes he did it, no, not exactly the right way.
Care to explain?
How else you going to do it?
You could spend hours bumping the starter trying to get it on a lobe.
The fan belt isn't enough to roll over some of these high-compression 6-cylinder engines.
Why would you take the distributor off the tractor, or rotate it? You just messed up your timing!
SadFarmall
Member
Well, I don't know whether anyone did anything 'wrong' here, but taking the distributor off is not an issue so far as timing is concerned because changing the point gap alters the timing in any case.
The narrower the point gap, the earlier the points will open.
The wider the point gap, the later the points will open.
The moment you alter the gap, you change the timing.
If you have a dwell angle meter, you can see the change even .001" increase or decrease in point gap causes.
I do not have data for six cylinder engines, but on a four cylinder engine .004" change in the point gap alters the timing by approximately 3 degrees.
SadFarmall
The narrower the point gap, the earlier the points will open.
The wider the point gap, the later the points will open.
The moment you alter the gap, you change the timing.
If you have a dwell angle meter, you can see the change even .001" increase or decrease in point gap causes.
I do not have data for six cylinder engines, but on a four cylinder engine .004" change in the point gap alters the timing by approximately 3 degrees.
SadFarmall
Massey farmer
Member
If he can't turn that little motor on a 200 over with the fan belt
that's the first thing I would address. Second, it's best to be
able to turn the motor over by hand to get it close then turn it a
little both ways while your standing over the distributer to make
sure the points are riding on the highest point of the lobe, not
just close enough while your trying to push a tire and watch. I
dont know if the 200 has a bolt in the front of the crank you
can get a deep socket on or not and turn the motor that way.
He said the crank pully is pressed on so maybe not. Like I
said, it works how he did it, but you said he did it "exactly right"
and I don't believe that statement is true.
that's the first thing I would address. Second, it's best to be
able to turn the motor over by hand to get it close then turn it a
little both ways while your standing over the distributer to make
sure the points are riding on the highest point of the lobe, not
just close enough while your trying to push a tire and watch. I
dont know if the 200 has a bolt in the front of the crank you
can get a deep socket on or not and turn the motor that way.
He said the crank pully is pressed on so maybe not. Like I
said, it works how he did it, but you said he did it "exactly right"
and I don't believe that statement is true.
Similar threads
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.
Copyright © 1997-2024 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy