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Farmall & IHC Tractors Discussion Forum
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Cavitation 66 series tractors

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DHD

12-20-2005 17:02:49




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I read about cavitation in 66 series tractor and was this a common problem in these tractors? I was kind of interested in a 766, but wondering about this problem. What causes this?




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Brownie 45

12-23-2005 03:54:37




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 Re: Cavitation 66 series tractors in reply to DHD, 12-20-2005 17:02:49  
On the experience & advice of a mechanic who worked on IH's forever, we put a ground wire ( #8) from the alternator mounting bolt to a 3/8 inch bolt on the water outlet/ thermostat housing. The mechanic`s theory was cavitation caused by electrolysis in the cooling system was causing the problem.



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lightninboy

12-21-2005 12:38:08




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 Re: Cavitation 66 series tractors in reply to DHD, 12-20-2005 17:02:49  
The cooling system is said to be the most neglected part of any tractor. Follow the owner's manual.



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Aces

12-20-2005 17:18:28




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 Re: Cavitation 66 series tractors in reply to DHD, 12-20-2005 17:02:49  
DHD Cavitation is not just an IH problem it can happen to any wet sleve engine. Having said that they put filters on the antifreeze and that fixes the problem. Cause is boubles in the water around the sleve and when they brake they pit the sleve until they pit through the sleve.



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pcy1066

12-21-2005 06:43:06




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 Re: Cavitation 66 series tractors in reply to Aces, 12-20-2005 17:18:28  
it dont have to have sleeves the 6.9 and 7.3 dsl motors the ford 401-456-474 also will get electrollisis as well as many others, the filter on the ih motors is a joke , all they do is dissolve a block of treatment into the water systom 30 minites of run time its dissolved, save your money on the filter. for around 4 bucks you can buy the 1 pint bottle of treatment. we put 2 of these a year in our 686,-2-966, 5 1066s, 6600 jd combine and 5 trucks with power strokes 2 trucks with 7.3 motors and our 3430 nh loader tractor

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stroked550

12-20-2005 20:09:44




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 Re: Cavitation 66 series tractors in reply to Aces, 12-20-2005 17:18:28  
Actually there is an additive that you put in the coolant to help prevent the problem, the filter was there to keep the coolant clean. Filters are available pre-charged with the additive.

Ben



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