WATER TEMP GAUGE'S

Bud W · Apr 27, 2010

Of my four IH tractors only the SC has a Temperature Gauge. My SA , 48 Cub and 67 Cub don't seem to even have a place in the dash for a gauge. What was the thinking behind this?
Thanks

mkirsch · Apr 27, 2010

Most Super As, and all Cubs had the "thermosiphon" cooling system. Since there's no thermostat or water pump there was apparently no perceived need for a temperature gauge.

Bud W · Apr 27, 2010

Thats kind of what I thought,: however" you would think they might have been concerned about some guy out in the field running out of water and not noticing it before it was too late. On the other hand how often do we look at a temp gauge even if we have one. Thats why they have gone to audible alarms on cars I guess. Thanks

Andy Martin · Apr 27, 2010

When you run low on water you have a "steam alert" which gets your attention pretty quickly. It is basically a 212 degree alarm, but without the water pump pumping vapor into the engine they don't seem to get much damage from running low on water, in my many opportunities to find out.

ScottyHOMeY · Apr 27, 2010

I'm with Andy, Bud. The thermosiphon is a simple and amazingly efficient system. The water pumps appeared on the A and C series that block when IH sleeved it out to make a 123 out of it, at the same time stepping up the RPMs. They apparently felt that the extra heat needed some help in shedding it.

As for an alarm, the steam alarm is about the most effective. It isn't like you're going down the road at 60 mph with your cooling system all tucked so neatly under a sleek hood that any steam is carried away out of sight and you never have a clue that you're boiling over. Them Farmalls, that radiator neck is hard to miss.

My BN (no pump, no gauge) cultivated beans and corn for days on end for years and never bothered about overheating. My SuperC doesn't bother about overheating, either. I use the gauge on it mostly to keep an eye on when to open the shutters in cold weather.

Athol Carr · Apr 27, 2010

On most IH tractors, Farmalls A through to M the temperature gauge was only standard on fistillate or kerosene tractors that had radiator shutters and the guage was used to help decide how much the shutter should be opened or closed. They were an optional extra on gasoline tractors. On the pre-war tractors (F-12, F-20 W-30 etc) they only appeared with the advent of the optional radiator shutters from about 1937,

WATER TEMP GAUGE'S

Bud W

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mkirsch

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Bud W

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Andy Martin

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ScottyHOMeY

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Athol Carr

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