Posted by Indiana Ken on January 17, 2013 at 05:59:47 from (66.249.232.131):
In Reply to: Leaking Head Studs posted by David G on January 16, 2013 at 19:50:44:
One thing I observed on threaded pipe fittings for plumbing work. One time I did have any tape and elected to use a PTFE sealant. Several of the fittings leaked water when the system was placed in service - additional tighening did not help. I disassembled the leaking fittings and noted an absence of sealant inside the fitting. It was as if the female fitting wiped the sealant off the male threads as they were threaded together.
I reassembled the fitting placing sealant on the inside of the female fitting in addition to the male threads. No more leaks. I believe this method allows sealant to be pushed into the thread spaces when the system is pressurized thereby effecting a seal.
For tractor work I tend to use sealants rather than tape. I believe the various sealants will work however they have to be carried into the thread spaces to effect a seal. Of course one always needs to use sealants or tape sparingly to prevent contamination.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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