Re: IH 1066 coolant problem

Posted by pete 23 on May 14, 2021 at 11:45:36 from (45.52.63.3):

In Reply to: IH 1066 coolant problem posted by Milk7 on May 14, 2021 at 07:37:29:

Have you had this tractor long and has it done this before. Or , have you changed radiator.

Reason for asking. We had a lot of problems with those tractors when new. For no good reason they would do just that, spew coolant when throttling down from a load.

IH's cure was to change the baffle in the radiator. The field fix IH supported was adding a coolant recovery tank in front of the pre cleaner baffle behind front grill. That and a radiator cap for recovery systems. Installed quite a few of them back in the 70'ss.

A little story behind this. Boss gets in a customers tractor , has a new radiator on hand because customer says radiator is leaking. I put new radiator on. Same problem.

Thing is no one discussed problem with me, just put on new radiator. About that time IH started getting numerous complaints and got to the bottom of the problem.

The original over flow hose was so short that any amount that came out of the over flow was picked up by the fan and it ended up on lower corner of radiator.

New baffled radiator and longer overflow hose came on the newer tractors.
Now, not saying this is your problem, just a possibility. Also, some anti freeze will foam some normally. Not all but some.
Next, if I really suspect combustion leakage, I fill radiator to the point of over flowing. Remove belt from water pump, and with cold or cool engine, start engine, rev engine up and down to high rpms a few times and watch for a rise of the coolant. NOT bubbles as they may be in rear of engine and take a while to surface. This is a 30 second to a minute test because the normal heating of engine will make it rise, BUT, if it raises up and out right away, you have a combustion leak. Head gasket, head or pin hole in sleeve.

Replies:

• Re: IH 1066 coolant problem Milk7 12:40:41 05/14/21 (0)

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