[Healeys] 100 water pumps

[Michael Salter]

Titled pic


On Sat, Mar 6, 2021 at 2:59 PM Michael Salter <michaelsalter at gmail.com>
wrote:

> There are 3 main parts to the original seal system. Photo attached.
> The hard thing to find is the seal diaphragm.
> The sealing medium itself is a carbon block which runs directly against a
> face of the cast iron body casting. The carbon block is located in a bronze
> "holder" on top of the diaphragm seal.
> The bronze holder is driven by splines on the impellor which wear badly in
> use.
> I have successfully rebuilt a number of lower mileage originals but parts
> are really hard to find these days.
> M
>
> On Sat, Mar 6, 2021 at 2:35 PM S and T Miller <stmiller96 at hotmail.com>
> wrote:
>
>> Looking forward to hearing your results of using it, in the car. What is
>> the original seal material made of?  It's not metallic, and feels like
>> plastic or really hard rubber. I was thinking using valve lapping paste
>> could recondition the mating surfaces that isn't too far gone?
>>
>>
>> The Millers
>>
>> "Always drive them, but remember each drive in an antique car is a test
>> drive."
>> ------------------------------
>> *From:* Michael Salter <michaelsalter at gmail.com>
>> *Sent:* Saturday, March 6, 2021 11:10 AM
>> *To:* S and T Miller <stmiller96 at hotmail.com>
>> *Cc:* healeys at autox.team.net <healeys at autox.team.net>
>> *Subject:* Re: [Healeys] 100 water pumps
>>
>> No I left the seal out but left the holder to maintain the bearing
>> spacing.
>> On one of the others I  deleted the holder and turned up a longer bearing
>> spacer to compensate for the additional space.
>>
>> M
>>
>> On Sat., Mar. 6, 2021, 10:16 a.m. S and T Miller, <stmiller96 at hotmail.com>
>> wrote:
>>
>> That is awesome.  Is that a pool pump seal? Mine is the first one I ever
>> pulled apart, but I assume the other inner seal is simply to contain the
>> bearing grease. Since you are using sealed bearings, did you still use that
>> seal?
>>
>>
>> The Millers
>>
>> "Always drive them, but remember each drive in an antique car is a test
>> drive."
>> ------------------------------
>> *From:* Michael Salter <michaelsalter at gmail.com>
>> *Sent:* Saturday, March 6, 2021 8:57 AM
>> *To:* S and T Miller <stmiller96 at hotmail.com>
>> *Cc:* healeys at autox.team.net <healeys at autox.team.net>
>> *Subject:* Re: [Healeys] 100 water pumps
>>
>> After a couple of premature failures of repro 100 water pumps I decided
>> to look into rebuilding them with a modern seal and sealed bearings.
>> I have some concerns about the small size of the annulus through which
>> all the coolant must pass in the original design so I have managed to
>> install a considerably smaller seal as in the pics attached.
>> After bench testing one of the prototypes is now fitted to my car
>> awaiting a test drive as soon as the snow is gone.
>>
>> On Fri., Mar. 5, 2021, 11:13 p.m. S and T Miller via Healeys, <
>> healeys at autox.team.net> wrote:
>>
>> What's the skinny on the repo 100 water pumps? Hear they leak and need
>> broken in dry. Uprated pump any good? Moss states the brass tap can be
>> screwed into the uprated pump, but from the pictures it actually looks like
>> the standard has threads and not the uprated. Can anyone confirm? Rebuild
>> original?Thoughts/ advice welcomed?
>> TY, Shawn
>>
>> The Millers
>>
>> "Always drive them, but remember each drive in an antique car is a test
>> drive."
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