newsance Posted February 27, 2004 Share Posted February 27, 2004 So I am tearing into my EA82 motor today to fix a coolant leak. I was all primed to change out the pump, as I thought it was coming out the weep hole. However, I notice that the pump bearings seem fine. I pull off the AC to get a clear look and see that the obvious culprit is the water pump to water pump junction. The pipe wobbles around in my hand freely, and I can see water dripping out of the junction. Upon further inspection, I see that this has to be the most mickey-mouse thing I have ever seen on a production vehicle. All that holds that together under high pressure is a cheesy o-ring? WTF? I have no confidence that me putting it back together with a new O-ring will seal right. What are you guys doing on these? Quote Link to comment Share on other sites More sharing options...
calebz Posted February 27, 2004 Share Posted February 27, 2004 In theory, the little O ring should be enough.. But I always slather it with blue RTV as well Quote Link to comment Share on other sites More sharing options...
toybuilder Posted February 27, 2004 Share Posted February 27, 2004 That O-ring doesn't hold anything together, it's just a seal. It's the bolt that secures the other end of the tube to the block that is holding things together. It is in all respects an adequate design. Quote Link to comment Share on other sites More sharing options...
rxpilot Posted February 27, 2004 Share Posted February 27, 2004 I just replaced my water pump ($42) and that O-ring comes with it. Good Luck :cool: Quote Link to comment Share on other sites More sharing options...
thealleyboy Posted February 27, 2004 Share Posted February 27, 2004 News: I have never had one spring a leak, but I do the same thing Cal does as a precautionary measure anytime I'm in there. I have seen this design on other Japanese models for many years, so it must not be a weak link in the system. good luck, John Quote Link to comment Share on other sites More sharing options...
Meeky Moose Posted February 27, 2004 Share Posted February 27, 2004 i think the o-ring was like .42 cents from importedparts.com bought one of those for my resealing.. Quote Link to comment Share on other sites More sharing options...
Snowman Posted February 27, 2004 Share Posted February 27, 2004 That's the same method they use to seal the water pipes that go between the cylinder heads on Cummins truck engines. If it works for them, I think it should work on a soob. That said, I too apply an ample amount of silicone as a backup. Quote Link to comment Share on other sites More sharing options...
teasdam Posted February 27, 2004 Share Posted February 27, 2004 I just rebuilt my ea82 and I too was somewhat confounded by this setup when I was reassembling those parts...I thought for sure I'd lost a part somewhere along the way. When I first installed it I didn't push hard enough and it leaked where the pipe meets the pump. So I pulled it back out, put some sealant on the ring, and worked it backed in place good the second time. The end of that pipe was rusted up more than I'm sure it should be, but so far it seems to be working just fine. This is on the intake (suction) side of the pump, so I wouldn't guess that there is nearly as much pressure on that seal as there would be on the output side. Quote Link to comment Share on other sites More sharing options...
jldskier Posted July 29, 2004 Share Posted July 29, 2004 I just replaced my water pump ($42) and that O-ring comes with it. Good Luck:cool: so how much of a hassle was it? jldskier Quote Link to comment Share on other sites More sharing options...
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