There is a thrust adjustment and 'button' on the end of the acc gear that
drives the dist and water pump. If not kept adjusted, it will let the shaft
go laterly go back and forth and this action will eventually hurt the seal
on the water pump.
Steve who has cussed at that pump and design on the JXLD driving the 30kw
genset
----- Original Message -----
From: Timothy Smith <timothy.smith1@worldnet.att.net>
To: Military Vehicles Mailing List <mil-veh@mil-veh.org>
Sent: Saturday, February 24, 2001 1:03 AM
Subject: [MV] Its about time!
> Hi list....
>
> I have almost every hub/brake assembly back on the Scout Car except for
the
> front left (called on account of rain and REALLY humid/foggy weather). I
> find that I will have to return to the front right and remove it once
again
> in order to check the clearance between the hub inner grease seal and the
> bearing. I heard something touching when I turned the drum and it cannot
be
> anything else so I figured I had better check it. Once this is
> accomplished, the Scout goes to the frame straightening
machine.....hooray!
> Having the Scout back on it's wheels means the sandblasting tent will be
> available for all the other parts that need attention. Of course it is
> spring time and the weather will probably not cooperate in the least but
> what else can I do but be ready for the few nice days?
>
> I recently received my water pump rebuild kit ($195.00!) and decided to
get
> after it. I went to the Greek Scout and removed it's water pump for my
> initial tear-down effort just in case I make a fatal boo-boo. That will
> leave me with the better (looking, at lease) water pump still on the US
> Scout's engine. It was raining one of those nasty soaking rains the whole
> time and I regret having my tools out in it but did get the pump off. I
> would hate to have to do it leaning over a fender and inner fender armor
> plate! After getting it off I got as far as the removal of the impeller
> pump housing from the assembly before deciding that I had better turn this
> over to a machine shop for a little more sophisticated disassembly than I
> can do without a press, etc. Better safe than sorry.
>
> Whoever designed the Hercules JXD water pump was either a genius or a
> lunatic.....I cannot decide which. It has this open section in the middle
> where the bronze packing nut can be seen encompassing the main shaft.
This
> section looks all the world like something is missing, though this is not
> the case. Forward of this is the part of the housing that holds the
> distributor gear drive and forward of that is the part that fits into the
> timing gear housing on the front of the engine. For the most part, the
> assembly has parts that are finely machined to fairly exact tolerances
and
> while the pumps were new, I am quite sure that overhauling them would be
no
> real challenge.....but here, we are talking about a pump that has sit for
> probably at least 20 years or more! Well, I was disappointed to have to
> consider sending this out, but it is the better part of valor. The good
> news is that the pump (while quite old) began to turn fairly freely with
the
> addition of some solvent, then some light oil to the main bearing.
> Impressive! I think I will have a winner with this pump and if a few
spare
> bucks crop up (Oh yeh....Riiiiiight!) I may go ahead and rebuild the other
> pump as well so as to have a back up.
>
> Hopefully, tomorrow the Scout will be back on its wheels. Good night all!
> TJ
>
>
>
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This archive was generated by hypermail 2b29 : Mon Mar 05 2001 - 07:58:35 PST