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HydroGear Charge Pump Cover

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    Proud to be Deplorable

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Posted October 07, 2015 - 09:51 PM

This spring, we pulled the Craftsman GT out and there was a small 10-15 drip puddle on the floor. No visible leak after three days on cardboard. It is several years old, and the occasional drip is not unusual in today's short lifespan equipment.
Ran it a week and found drips again, this time on the charge pump cover.
Took cover off, true'd up the flat, topped it up...mproblem solved? Nope.

Turns out there is a flaw with the G7xx charge pump covers bending without warning and seemingly without reason. I suspect lead foot driving from my 15 year old and sudden direction changes... But I can't prove it.
This failure has also been seen on some HG units in Zero Turns.

The replacement kit is easy, the tranny was overdue on a fliter and new oil anyways. (HG says 400 hours, Sears says never :wallbanging:)
Here are the two charge pump covers, black one is new one and steel vs the old aluminum one.
image.jpg image.jpg image.jpg
No comparison.

The kit comes with new pump parts, o ring and bolts. Goof proof if you read the paper first (it warns you to note the orientation of the old cover before removal)

The kit for mine was 72274 (verify the part number for yours with Hydro Gear before ordering) and took longer to fill with 3qts of the 20w50 due to location of the fill hole than anything else.
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#2 wvbuzzmaster OFFLINE  


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Posted October 07, 2015 - 10:02 PM

Yup, great improvement, and definitely the fault of the KK. :poke:
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#3 KennyP ONLINE  



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Posted October 08, 2015 - 04:37 AM

That cover looks like it should hold up!