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Stationary Engines Discussion Forum

wisconsin vf4

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balfe

09-01-2005 18:14:20




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I just had mag rebuilt,new plugs,wires.Cap is numbered 1234.Firing order? How do I line up gear on mag? Has a 1/2" plug on the side of mag. It is getting spark to the plugs.Does sputter then seems to flood.Also gas pours out of carb when cranking? Oh yah it,s a crank,ouch!!!! should I take it to a shop? Thanks Scott




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JOB

09-03-2005 20:11:32




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 Re: wisconsin vf4 in reply to balfe, 09-01-2005 18:14:20  
Remove the screen that covers the flywheel first. You will now be able to see the timing marks on the shroud and flywheel. On the shroud there is a line that marks the centerline of Number one and number three cylinders. The flywheel is marked with a DC next to one of the air circulating vanes, that same vane is further marked with an X cast on the end of the vane. The leading edge of that vane should line up with the line that marks the centerline of one and three cylinder. Then take the plug out of the inspection hole, you should see an X on the magneto gear in the lower half of the inspection hole. If you don't, remove the magneto and turn the magneto gear until the X will be seen in the lower half of the hole. When the magneto is properly timed the impulse coupling will snap when the DC-X marked vane lines up with the center line on the shroud of number one and three cylinder. Check this by turning the engine over slowly by hand with the crank. The magneto should snap every 90 degrees of rotation thereafter. I hope I have not confused you I would send you a picture if I could. Good luck

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balfe

09-04-2005 15:26:38




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 Re: wisconsin vf4 in reply to JOB, 09-03-2005 20:11:32  
To JOB, Thanks so much for info.I,ll try it. Facing crank ,is cylinder #1 & #3 on the left? #2 & #4 on right? Thanks again Scott



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JOB

09-05-2005 19:33:19




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 Re: wisconsin vf4 in reply to balfe, 09-04-2005 15:26:38  
Yes facing the engine 1 and 3 is on the left. I have a VE4 on a wood splitter that has split wood for 25 years. It is crank start also. The way I start it is to take the air filter hose loose from the carburetor. I then use the manual prime lever, which is between the fuel pump and engine block to pump fuel to the carburetor. I have to turn the engine with the crank until I can feel resistance on the lever. I pump the lever until the resistance goes away. I then pull the choke out all the way. I then give it a good crank. On the second pull it will generally try to start. I then push the choke in half way and give it another good crank. On the second pull of the crank it will generally start. I then take the throttle linkage rod and run it manually until the engine will run on it's own. Then the throttle lever is pulled back and the air filter hose gets put back on and we go to work. This engine would not start this spring even though it had spark. I took the points out and used very fine sandpaper on them, regaped them and it ran fine. You need shiny points. I have a newer 30 horse with an electric start that I should rebuild and put on this machine; I am getting tired of this crank start business. good luck.

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Balfe

09-07-2005 16:29:40




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 Re: wisconsin vf4 in reply to JOB, 09-05-2005 19:33:19  
To JOB, When cranking to adjust points , How do you get to the high spot on the mag cam? When cranking cam snaps past high spot.Points, cond. mag coil are all brand new rebuilt by a shop . Also carb is filling and over flowing when cranking. Cylinders seem to be flooding. I pull plug and wet plug sparks and catches fire.I did pull heads off,and 2 exh valves were stuck open.I tapped them down and they seem to be working ok now.I lined up timing marks and X on mag gear.There is a homemade center punch mark on mag gear 6 teeth away from the X. Now lets see who is confusing who? Thanks for your help, Scott

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JOB

09-07-2005 19:01:10




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 Re: wisconsin vf4 in reply to Balfe, 09-07-2005 16:29:40  
To get the points to open and not snap past turn the engine over backwards until the points are open. As for the carburetor flooding you might want to check the float in the carburetor and make sure it is set correctly also check your needle valve to make sure it shuts off the gas supply when the bowl in the carburetor is full. The punch mark on the magneto might mean that someone has completely made it a breed of it's own. Count the number of teeth on the gear. If it is 24 maybe you can go with that mark. Put a wire and plug on the number one hole in the magneto. Turn the gear by hand and see what mark is in the position of the hole when the plug fires. Then go with that mark. I am guessing this engine has not run for quite some time.

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Balfe

09-09-2005 15:51:24




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 Re: wisconsin vf4 in reply to JOB, 09-07-2005 19:01:10  
to job, I got the engine to fire. Backfires thru carb.And crank wants to break my arm.I know it,s out of time. Didn,t notice before there are 3 lines on fan shroud. One is at about 9:30, others at 12:00and 1:15. Are these the cyl marks?Other problem #1 cyl is firing when homade punch mark snaps on mag,not the X.Also I,m reading that firing ordr for mag is diff than distributor.1432 ?The spec# is 343,and mod.Y-54 is this right mag for Vf4?Is there a way of physically cking pistons to line up X in mag plug hole?Sorry for all the Questions ,but I know I,m getting close it,s very frustrating. Thanks again Scott ?

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JOB

09-09-2005 18:38:27




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 Re: wisconsin vf4 in reply to Balfe, 09-09-2005 15:51:24  
Sounds like you have a Wico XH-4 Magneto Y-54 series. This magneto will work on the VE4, VF4 and the VP4. The VP4 went obsolete in 1954 and I would think the VE and VF went obsolete around the same time. You should have 4 lines on your air shroud. One line at 12 0-clock, to the right of the 12 0-clock line in the centerline of number 2 and 4 cylinders you should have a line. To the left of the 12 o-clock line there should be a line through the centerline of number 1 and 3 cylinders. 27 degrees to the left of that line there should be another line. That line is used to time your engine using timing light. To do this paint or white chalk the end of the X-DC marked vane. Hook timing light up to number one spark plug. With the engine running at 1800 RPM the light should flash when the whitened vane lines up with the 27-degree mark. When the magneto is properly timed, the impulse coupling will snap when the X-DC marked vane lines up with the centerline of Number one and three cylinders, on the flywheel shroud. Check this by turning the engine over slowly by hand. What I would do in your case is put a wire in the number one hole in the magneto and hook it to a spark plug. Turn the engine over slowly by hand till the X-DC marked vane comes to the centerline mark of number one and three cylinders. See if the magneto snaps when the X-DC marked vane lines up with the mark
On the shroud. If number one does not snap but another one does, find out which one does and use that one for number one and wire the magneto accordingly. If the impulse coupling does not snap when the X-DC vane lines up with the centerline of number one and three cylinders you have a magneto gear problem. The firing order of the engine is 1-3-4-2. That is not how the holes in the magneto are laid out. They are laid out 1-4-3-2 in direction of magneto rotation. I know you know to run a wire from number one hole in the magneto to number one cylinder. Number three hole to number cylinder and so on. Good Luck

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JOB

09-10-2005 03:51:46




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 Re: wisconsin vf4 in reply to JOB, 09-09-2005 18:38:27  
The Magneto point gap is .015 the spark plugs are gaped at .030. The number one cause for magneto failure is incorrectly gaped spark plugs, or bad plugs.



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balfe

09-11-2005 17:04:06




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 Re: wisconsin vf4 in reply to JOB, 09-10-2005 03:51:46  
To JOB, Well it,s a good day.I got my vf4 running.One final question ,I hope? It runs a little ruff. Can the timing be slightly adjusted while the engine is running? Like a distributor?I see a slotted hole on the bottom mounting bolt of the mag.Might need to be advanced a touch.Plugs and points clean and gapped properly.I have a 58 ford tractor,sounds the same when dist. needs a slight adj.Sputters pops a bit.Any info is greatly appreciated.You have been such a great help.Thanks Scott P.S.needle screw on carb where fuel line comes in,I can run it all the way or out, doesn,t seem to affect running of engine?Is this air adj.screw?

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JOB

09-12-2005 02:32:17




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 Re: wisconsin vf4 in reply to balfe, 09-11-2005 17:04:06  
Timing can not be adjusted while engine is running. Check timing with a light as described in a previous post. Screw on carb is air, the fuel metering jet is inside, and it is non-adjustable.



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