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D7-3T water pump

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16 years 1 month ago #21505 by greyhead
D7-3T water pump was created by greyhead
Thank guys for the info on pony operation.
New question ,I rebuilt the water pump this summer (as with everything else)
I made a new shaft and I am not sure how tight do I tighten the packing?
Is there a run in time frame?
I dont want to ruin the new packing or rut the shaft

CAT 977K-11K, JD450-B ,JD690-B, IH TD-9 ,CASE 450-B JD750-E JD850-B
CAT D7-3T, KOMATSU P-68-8 LGP, CLARK 55A LOADER
CLARK MICHAGAN 85-C LOADER, CAT V60 FORKLIFT
And some old AC tractors

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16 years 1 month ago #21506 by ccjersey
Replied by ccjersey on topic D7-3T water pump
general rule on packing is tighten it just enough so that it LEAKS at a rate you can stand. HA! HA!

The leakage keeps the packing lubricated and cooled. Some of the packing materials have enough lubricating ability to stay cool when not leaking, but I would make sure to adjust slowly and just enough to stop the drip. You may want to keep the wrench on the tractor and adjust when you stop the tractor after a run if you notice a drip after you shut it down while the engine is hot and radiator has a little pressure

D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time:D

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16 years 1 month ago #21509 by Kelly
Replied by Kelly on topic D7-3T water pump

Thank guys for the info on pony operation.
New question ,I rebuilt the water pump this summer (as with everything else)
I made a new shaft and I am not sure how tight do I tighten the packing?
Is there a run in time frame?
I dont want to ruin the new packing or rut the shaft


Greyhead,
Where is the correct way to tighten up the water pump packing nut on your tractor.
Be sure you do it why the engine is running as stated.
Kelly
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