Anyone have issues with parts store (Murray) water pumps?
#1
Anyone have issues with parts store (Murray) water pumps?
The thermostat seems to open more erratically than with the original. I'm using a 160 tstat and I don't remember the truck ever going over 180 with the stock pump. Now I'm seeing mid 190s. I'm wondering if maybe the thermostat bosses are machined differently on some of these aftermarket pumps and my 160 tstat isn't seating/ opening properly.
#3
Originally Posted by Wolftrk99
Maybe its the thermostat, or everything youve done to the truck!?
#5
Found my problem. Murray water pumps ftl. The thermostat inlet bore is oversized and off center. The tstat must have been binding and not opening properly. Stock pump is going back on, my leak was actually from the steam vent seals anyways.
Stock pump: ~21mm bore
Murray: ~24mm bore
The 160 tstats are obviously designed around a stock pump. Lesson learned.
Stock pump: ~21mm bore
Murray: ~24mm bore
The 160 tstats are obviously designed around a stock pump. Lesson learned.
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