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Synchro909 · 09-20-2016, 03:03 AM

The stainless shafts used these days are too soft. A leak-less pump doesn't stay that way for more than about 15-20,000 miles before the lip seal wears a groove in the shaft. The gland packing nut on them should have packing behind it and tightening the nut will work like the original pump for a while. The soft shaft wears quickly and you're back to square one pretty soon.
A pump built like Henry built them is not built like Henry built them because the shaft is so soft. Seems everybody has decided that stainless is best because it doesn't rust but they are not. The gland packing on a pump done like original quickly wears the shaft and the leak starts. A few years ago, there were pumps available with a modern ceramic seal in them. Does anybody have any info on those?
I have just fitted a modernish carbon seal to a pump for each of my cars. Haven't tried them yet but very hopeful of a good and durable pump.
A leakless pump that leaked cost me an engine rebuild. I'm not a fan of the so called leakless pumps that are about now. Contemplating making new pumps with ceramic seals.

09-20-2016, 03:03 AM	#8
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 8,043	Re: Water Pump The stainless shafts used these days are too soft. A leak-less pump doesn't stay that way for more than about 15-20,000 miles before the lip seal wears a groove in the shaft. The gland packing nut on them should have packing behind it and tightening the nut will work like the original pump for a while. The soft shaft wears quickly and you're back to square one pretty soon. A pump built like Henry built them is not built like Henry built them because the shaft is so soft. Seems everybody has decided that stainless is best because it doesn't rust but they are not. The gland packing on a pump done like original quickly wears the shaft and the leak starts. A few years ago, there were pumps available with a modern ceramic seal in them. Does anybody have any info on those? I have just fitted a modernish carbon seal to a pump for each of my cars. Haven't tried them yet but very hopeful of a good and durable pump. A leakless pump that leaked cost me an engine rebuild. I'm not a fan of the so called leakless pumps that are about now. Contemplating making new pumps with ceramic seals. __________________ I sometimes wonder what happened to the people who asked me for directions. Even at my age, I still like to look at a young, attractive woman but I can't really remember why.