Posted by jdemaris on September 30, 2010 at 07:08:44 from (67.142.130.34):
In Reply to: Farmall A Valve Seals posted by Roger46 on September 29, 2010 at 17:44:25:
I've been putting valve-stem seals on farm tractor and industrial engines for 40 years. Never had one die a premature death over it. And, I'm no "greenie." Not really a big issue on most diesels that don't have engine-vacuum, but it can make a big difference on gas engines or air-throttled diesels.
John Deere was one of the first to install positive-seal type stationary teflon seals in 1960 on 1010 and 2010 gas engined farm tractors and crawlers. Worked fine and their valves lasted just as long as anything else out there. These stationary seals let even less oil down the valve stems then umbrella seals.
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Today's Featured Article - A Lifetime of David Brown - by Samuel Kennedy. I was born in 1950 and reared on my family’s 100 acre farm. It was a fairly typical Northern Ireland farm where the main enterprise was dairying but some pigs, poultry and sheep were also kept. Potatoes were grown for sale and oats were grown to be used for cattle and horse feeding. Up to about 1958 the dairy cows were fed hay with some turnips and after that grass silage was the main winter feed. That same year was the last in which flax was grown on the farm. Flax provided the fibre which w
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