From: Jim Bailey [jim@928intl.com]
Sent: Monday, July 30, 2001 6:21 PM
To: 928
Subject: [928] Re: Water Pumps, etc.

There are rebuilts , rebuilts and rebuilts .......... Depends greatly on who
is rebuilding them ......... Mark Anderson has been running rebuilt water
pumps on his race engines for years . I use rebuilt pumps .  But we know who
is rebuilding them ...... Only the select cores are rebuilt to our exacting
standards by the company who also rebuilds for Porsche , the cores not up to
our standards are rebuilt and sold to other distributors . I am convinced
based on thousands of water pumps that " our " rebuilt may actually be
better than a new pump........




>testing for bad water pump impeller
>Date:     Saturday, December 7, 2002 6:46:36 PM (Pacific)
>From:     Albin Moore
>
>Many times I get a car in with a "no heat" complaint. After
>doing the basic tests for proper fill of coolant, any air
>in the system, water pump drive belt tight, I will remove
>the heater hose at the rear of the engine. I then block off
>the removed hose, hook a low pressure gauge to the exposed
>heater hose port, and start the engine. The radiator cap
>needs to be off for this test. Bring the engine rpm up to
>around 3000 rpm and watch the gauge. If there is no
>movement, there is no pressure in the engine block. That
>tells me that the water pump is not doing its job. I always
>like to see at least 10 psi on the gauge, but different
>engines will put up different pressures.
>
>This is a trick I learned for testing water pumps on heavy
>diesel engines, and it even works on the little gas engines
>too.
>
>Albin Moore
>Owner/Technician
>Big Wrench Repair
>Dryden, Washington, USA