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    Universal 640 dtc head gasket?

    Thanks for the reply. I've done some more work ( been hanging around -22c) so it's a slow go. But I've ran the tractor with no rad cap and could not see any bubbles .. A good sign the rad cap I took off does look suspect though The crack in it might explain the coolant loss . Swapped the t stat...
  2. T

    Universal 640 dtc head gasket?

    Hello, thought I'd post an observation I had on my 640 dtc ( same as some long,white tractors not exact on their models) anyway.. It has run well for past few months and it never got too hot even in the the dog days of August . I was looking to clear some snow this past weekend so I plugged the...
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