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Do those transmission and hydraulic stop-leaks really work?
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Posted by Ken McWilliams on December 13, 2001 at 15:29:32 from (64.12.102.31):
I have a hydraulic system on a CASE crawler that's been out of service for a while. As a result of the system not being used, the seals have dried out. The system was taken off and the oil had been drained out of it for several months. When I re-mounted the loader onto the crawler, I filled it with new hy-trans oil. The spool seals for the directional valves, one of the lift cylinder packings, and the pump shaft seal are seeping. None seemed to be leaking when taken out of service. I've seen advertisements for transmission and hydraulic system "stop-leaks". In the past, I've always considered these "stop-leaks" as "hocus-pocus" fixes in order to separate some unsuspecting buyer from his money. I've usually fixed the problem by replacing worn parts, and I've never tried any of them. Do they really work? Supposedly, they contain solvents that will attack the rubber seals and swell/soften them so they will seal again. I've worked on this crawler for months rebuilding the engine and under-carriage, and it has become somewhat tiring. I'd like to get something that would seal the system if only temporarily until I can get some work out of it. I'm just not in the mood, right now, to go through the hydraulic system and re-seal it. At this point, I'm willing to spend a few bucks and wait a few days to see if the system will re-seal itself. Is there is something that will help make the seals work again - at least, on a temporary basis? Which "stop-leaks" do you recommend? Ken McWilliams
Dayton, OH
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