Posted by K Effective on May 13, 2020 at 05:33:02 from (99.184.108.123):
In Reply to: Radiator flush posted by svcummins on May 12, 2020 at 15:00:03:
The temp sender seemed to have failed last summer on one of my vineyard tractors, would read off-scale hot in less than a minute of run time, all metal registered 180F after warmed up and used.
I bought a gallon of radiator flush at Deere, think it was a Hastings product, when I got the new sender. It suggested removing the thermostat for a better flush, so might as well get one of those, too.
Well, to drain it per directions, I had to remove the lower hose, and since they are 1989 vintage, get replacements for those, too.
Once the top hose is off, look inside and see just how crappy the top of the tubes are!! Tried the Hasdtings product at double strength, it cleaned the thermostat area and other metal fine, but the radiator was still white and crusty around the tubes.
Took the radiator off, but no local shops would do a true cleaning any more, EPA restrictions on chemicals used and aluminum radiators failing were reasons given. They all said buy new.
Deere wanted $600, so eBAY provided a new radiator at $300. The plastic tank attaches directly to the top of the radiator, and is pressurized, but I was able to save that. New o-ring required, along with minor modifications to the brand new almost-right radiator. And, since the hydraulic oil cooler needed to be removed to get the radiator out, new hoses and clamps for that, too.
To get the thermostat out, you have to remove the muffler, and why not look into the turbo? Why is it all oily? Better run that down to the Turbo shop...GOOD NEWS, turbo is fine, but must be leaking valve guide seals causing the oily exhaust, so off comes the valve cover for new guide seals and keepers (oh, wait, this model does not have seals, so back up and live with it!).
When we got to the talk of pulling the head off and replacing valve guides I remembered why all this started, and decided I could live with a gauge that didn't work.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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