09-19-2020, 08:30 PM
Quote:
2 hours ago, heavyhorse said:
my big tractor is 50 years old, a daily-use industrial tractor before I got it, my little tractor is 60 years old. The only spring that's ever stretched was a clutch pedal return spring.
Time to get worried. A common failure mode for high mileage heavy duty engines is a dropped valve due to a broken valve spring. That's why heavy duty overhauls include new valve springs. Case/IH products seem to worst about it.