water pump replacement - is there an o-ring?
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water pump replacement - is there an o-ring?
Need to replace my water pump due to a slow coolant leak at the shaft seal. Was looking at some old threads on R&R (https://www.jaguarforums.com/forum/x...cement-195875/) and all I see mentioned is the new gasket. The parts catalog shows 2 o-rings associated with the water pump. Is this correct, I need 1 or 2 new o-rings to go with the new pump and gasket? I'm not seeing where any o-rings go on part AJ88912.
Thanks,
-Michael
Thanks,
-Michael
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I noticed the same thing about the o-ring in the manual when I looked, that's what had me confused. I also read about the Delco pump being good, however I prefer to stay OEM. Original pump has lasted 124k miles. So now I'm more confused--the Delco comes with the o-ring but the Jag pump does not? Or the Jag pump does not require one?
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rf69 (02-14-2019)
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#8
I noticed the same thing about the o-ring in the manual when I looked, that's what had me confused. I also read about the Delco pump being good, however I prefer to stay OEM. Original pump has lasted 124k miles. So now I'm more confused--the Delco comes with the o-ring but the Jag pump does not? Or the Jag pump does not require one?
Michael, when you have got this sorted and you have time, please tell us what symptoms caused you to renew your pump? Was it very slow loss of coolant but with no visible coolant spill under your car? Did you use your excellent 'jack it up and get under there with a torch' method? Can you see a weeping pump from under with all panels removed and the engine running?
I stress, when you have sorted your own problem out......
#9
I noticed the same thing about the o-ring in the manual when I looked, that's what had me confused. I also read about the Delco pump being good, however I prefer to stay OEM. Original pump has lasted 124k miles. So now I'm more confused--the Delco comes with the o-ring but the Jag pump does not? Or the Jag pump does not require one?
Since replacing the original my recent replacement is the third one over a period of 10k miles. The previous 2 were two piece design.
#10
I noticed the same thing about the o-ring in the manual when I looked, that's what had me confused. I also read about the Delco pump being good, however I prefer to stay OEM. Original pump has lasted 124k miles. So now I'm more confused--the Delco comes with the o-ring but the Jag pump does not? Or the Jag pump does not require one?
Be sure to tighten bolts to 8Nm + 90 deg.
#11
I can only imagine that the pump drawing (which I attached) in my X350 Workshop Manual is an original OEM Jaguar pump?
Michael, when you have got this sorted and you have time, please tell us what symptoms caused you to renew your pump? Was it very slow loss of coolant but with no visible coolant spill under your car? Did you use your excellent 'jack it up and get under there with a torch' method? Can you see a weeping pump from under with all panels removed and the engine running?
I stress, when you have sorted your own problem out......
Michael, when you have got this sorted and you have time, please tell us what symptoms caused you to renew your pump? Was it very slow loss of coolant but with no visible coolant spill under your car? Did you use your excellent 'jack it up and get under there with a torch' method? Can you see a weeping pump from under with all panels removed and the engine running?
I stress, when you have sorted your own problem out......
EsRay, there is a very slow coolant leak (top off the reservoir about 1/4 cup a month) and you can see white residue on the engine block below the pump when looking up from the bottom of the car. No drips on the ground.
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Basically the expansion tank and hoses near the water pump and the serpentine belt (and if you have a SC engine the SC belt and hoses going to the SC coolers)
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You tighten opposite bolts one at a time not in a sequential fashion but diagonally opposite each other.
When I did mine I felt that turning the torque wrench another 90 degrees after reaching the 8 Nm felt way too much so I did not "force" that 90 degree turn.
Have had no leak issue at all.
Last edited by jackra_1; 02-14-2019 at 07:08 AM.
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Don B (02-19-2019)