If the connections are pipe threads then the best stuff to use is the teflon in a tube, without the chunks used for normal pipe systems. IF that does not work then you can try teflon tape, but it's use on hydraulic systems is usually frowned upon. It's frowned upon because if not done properly pieces of the tape will end up inside the system and cause problems. IF you use it, make sure you wrap the threads in teh right direction and insure that the tape stays at least a few threads back from the end of the fitting so there is no chance of it getting pushed into the system as the fitting is tightened.
That said if the fittings are straight thread and have o-ring seals, like many valve manifolds are, then all you need to do is get new o-rings for the proper size SAE O-ring fitting size and reseal them.
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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