Re: Major 4020 ???

Posted by Gerald j. on December 29, 2006 at 20:57:09 from (67.0.103.9):

In Reply to: Major 4020 ??? posted by Raleigh Boulware on December 29, 2006 at 20:10:14:

$7400 - 2500 is $4900. A workable price for a gas tractor alone. The 158 is a sturdy and good loader, and often sells for more than $2500.

I paid $5250 for a 1968 gas 4020 about 8 years ago. I had to replace plugs and plug wires, and cure its running rich as well as set the timing. If its not been tuned lately too little point gap from rubbing block wear will have retarded the timing and can easily cost 18 hp on the dynomometer. Carbon wires and old plugs can do a lot to reduce the power too.

Oil out the side of the head gasket isn't so good. I know mine has been apart, every engine bolt has marks from sockets or box end wrenches.

You'd pay several thousand more for a similar vintage diesel and if the Roosa pump hasn't been rebuilt you will soon and that will cost a whole lot more than a few sets of plugs and copper wires. I figured for the price of farm gas when I bought my 4020 gas that if a diesel cost $4000 more, I could pay for gas for 14 years. Since then I have weaned it and the price of gas has gone way up, but I still have years of gas paid for by the savings in purchase price.

Doing a head gasket and valve job shouldn't be too expensive. The hood lifts off after you take off the cowl and some bolts and then top of the engine access is very good though not too handy standing on the ground. Some blocks and planks would be handy.

Gerald J.

Replies:

• Re: Major 4020 ??? Raleigh Boulware 18:32:41 12/30/06 (0)
• Re: Major 4020 ??? Raleigh Boulware 21:07:22 12/29/06 (2)
  • Re: Major 4020 ??? Gerald J. 08:35:33 12/30/06 (1)
    • Re: Major 4020 ??? Raleigh Boulware 18:34:24 12/30/06 (0)

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