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I'am giving up on my workmaster 661

C

chuck kaufman

Member
I have always ahd good luck ressurecting old tractors. well I've met my match with this 661. Been chasing an ingition problem for months when I can get it runnig it runs fine for 2 minutes then starts to smoke like crazy.I have 128# pressure in all cylinders still she smokes and fouls #3 plug.Tha rest of the tractor is in pretty nice shape.I've put a 12v alternator,water pump,starter drive.pertronix ingnitor unit and cleaned up the carb.What say you guys as to what a fair price would be to ask ? PS she just started throwing oil out the front seal Thnaks Chuck K. Hood River Oregon
 
if it has spark.. doesn't sound like an ignition problem.

IE.. running and beggining to smoke, fouling plugs and leaky front seal are not ignition problems.. those are worn engine problems, and to some extent, possibly carburation issues.
 
Hi
sounds to me like something my friend does, buys a tractor for next to nothing, gets lucky on 15 tractors out of 16 by spending next to nothing sorting them. makes a huge profit on selling them or uses them then sells, and cries like a baby,rips the ear of and throws the teddy bear in the corner. When the 16th one needs a little more money and time to get it right.
You spent a fair bit of money on it why dump it cheap now, and let the next guy fix it and get the benefit of what you did cheap.
Regards Robert
 

When you pull the plug does it smell like gas? If it does, it is fouled, which likely means it quit firing.

If it quit firing, replace that spark plug. Start by swapping #3 for another cylinder's plug. If it continues with three or four different plugs something is wrong in the distributor. I'd start with the usual suspect - a bad cap. While you're messing around, wiggle the distributor...if it moves, find out why. Could be loose bolt, could be worn out shaft.

Also, pull the float bowl and check for debris. Mine was doing something similar...found a piece of plastic in the bowl that would float around and when it got in the right spot, it would stick the float causing flooding. Sometimes this would happen, sometimes not, so check the bowl.

In my experience, all carbs are sensitive to float adjustment, too. A little error can dump a lot of fuel into the engine.

Start with the easiest, cheapest fixes: Swap plugs, check float, buy cap, buy plugs. Eliminate the easy things first.
 
IS the crankcase vent plugged causing pressure inside the engine pushing oil where ever it will go, thus causing the smoke??
 
I'm with Robert, sometimes you get lucky some times you don't.
Nice model like that, I wouldn't give up.
Decide what the smoke is, water, oil, excess gas smoke and keep after it, you'll find it.
too much gas, black and the governor will hunt like mad trying to fix it before it stalls.
water getting dumped in a cylinder and doing the steam engine thing is usually pretty easy to identify. Nothing smells like antifreeze.
oil smoke or water smoke? take your glasses off and pass them thru the smoke. Oil will let ya know pretty quick on the lenses.

Had a Farmall once that broke the piston skirt above the oil ring but below the compression rings. Still had compression on that cylinder, but was blowing oil with the smoke out the vertical exhaust. Pretty impressive. Couple bucks for a part here and there and it's fine now.

Remember on these old tractors....even hopeless engines, swapping in another one is cheap and only takes a little time and you are back in the game.
 
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