Re: Farmall 560 Glow Plugs

Posted by Hugh MacKay on July 25, 2003 at 17:41:08 from (209.226.247.103):

In Reply to: Farmall 560 Glow Plugs posted by JB Bratton on July 24, 2003 at 09:18:25:

JB: You can tell right from your tractor seat if glow plugs are working and if they are not your gauge will tell you how many are not working. That gauge is showing amps drawn and each plug requires so many amps. I have forgotten the exact amps drawn, been 18 years. If the hand on gauge is going almost to the right they are all workng. You can pretty well dervide it out on gauge. A simple test light between supply wire and glow plug will tell you which ones are bad.

The major problem with 560 glow plugs is care or lack of it. Your battery cables must be 1 gauge all soldered on ends. Your cables must be kept clean. And last you must use those glow pluges a min of 1 min. even in hot weather and suposeing the tractor was going 20 minutes ago. In sub zero weather I have held 560 glow plugs on for 5 minutes. There is just one place for that ether can, that being an emergency at -20F For cold weather starting use a circulating block heater. I used to start my 560 daily at temps as low as -35F , the secret block heater, just like a summer time start. Remember roughtly 85% of engine wear occurs while engine is not up to temperature. To me, a block heater is about starting, but more important than starting is engine wear. Get that engine up to temperature quickly as possible.

Most diesels will not maintain ideal operating temperature if left idleing in minus 20F weather.

I have a little story about a guy with a 656 diesel same engine as your 560. He used to haul heavy loads down a 3 mile incline, and would pullback on his hydraulic valves using them basically like engine brakes, and even then the tractor would over rev. One day the tractor stopped and wouldn't start. I was told that push down the hill in cool weather cooled engine to point it stopped firing. They had to use glow plugs to restart. I understand this wasn't the first time. The first time tractor sat for two days, owner wondering what was wrong. He thought he had broken something. After two days of consulting people in the know, They went back to tractor, using glow plugs of course, and tractor fired right up.

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