Author Topic: Water Pump Failure in Seattle!  (Read 3499 times)

Offline daveola

  • Galactic Bustastic!
  • Sr. Member
  • ****
  • Posts: 291
  • Big Red and Little Red
    • Dave's Bus
Water Pump Failure in Seattle!
« on: May 31, 2016, 12:12:02 AM »
On our way *to our wedding* our water pump (1986 MCI 102A3) started leaking heavily.

We had it checked out and the seal seems to be dying, it's leaking coolant heavily out the weep hole.

We tried finding a replacement and failed, looking up the parts doesn't seem to help, we keep finding water pumps that are "walking" instead of "standing" for the bottom two pipes.

Also, we aren't sure whether the gearing is reverse or standard (left or right) - does anyone know the correct info for this pump, or, even better, *where we can get one?*.  Failing that, somewhere we can get the pump rebuilt in a reasonable amount of time?  (A&T Rebuilders in MO have a 5-8 day lead time)

According to the MCI parts manual, it's part #23506031, but nobody seems able to find that.  The shop thought that we needed 23506602 or 235602, but that is a "walking" pump.

(We were able to make it to our wedding thanks to a continuous replacement of coolant/water and are now happily married!...  and hoping to go on our honeymoon instead of spending two weeks waiting for a pump rebuild  :) )

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20287
Re: Water Pump Failure in Seattle!
« Reply #1 on: May 31, 2016, 05:16:27 AM »
Call Luke or order a kit on line the seal is bad and it can be replaced with out pulling the pump
Life is short drink the good wine first

Offline Detroitenginespecialist

  • Newbie
  • *
  • Posts: 38
Re: Water Pump Failure in Seattle!
« Reply #2 on: May 31, 2016, 06:05:35 AM »
Daveola

Do you know what your engine serial number is?  We might be able to help you.
Thanks,
Brian Stanton
American Fleet Inc.
417.865.4420
417.234.7334  (cell)
bstanton.americanfleetinc@gmail.com

Offline Dave5Cs

  • Hero Member
  • *****
  • Posts: 3484
  • 1979 MCI MC5Cs 6V-71,644MT Allison, Roseville, CA
Re: Water Pump Failure in Seattle!
« Reply #3 on: May 31, 2016, 12:22:03 PM »
Congratulations on your marriage. May you have many years of fun adventures and long life together!... ;D ;D
Dave5Cs
"PATHFINDER" (PFBus)
 1998 Jeep TJ (PFTOED)
 Congressmen should wear uniforms,
 like NASCAR drivers, so we could
 identify their corporate sponsors

Offline daveola

  • Galactic Bustastic!
  • Sr. Member
  • ****
  • Posts: 291
  • Big Red and Little Red
    • Dave's Bus
Re: Water Pump Failure in Seattle!
« Reply #4 on: May 31, 2016, 02:07:42 PM »
Call Luke or order a kit on line the seal is bad and it can be replaced with out pulling the pump

I am baffled by this - how would you even get to the seal without pulling the pump off?  And I was under the impression that the seal had to be baked in?

Offline daveola

  • Galactic Bustastic!
  • Sr. Member
  • ****
  • Posts: 291
  • Big Red and Little Red
    • Dave's Bus
Re: Water Pump Failure in Seattle!
« Reply #5 on: May 31, 2016, 02:09:13 PM »
And as a wedding present, a pump has been found!

:)

Is the old pump worth keeping and/or rebuilding and/or selling?

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20287
Re: Water Pump Failure in Seattle!
« Reply #6 on: May 31, 2016, 03:10:02 PM »
You pop the cover on the front of the pump remove the impeller pull the seal install the seal,install the impeller ,tighten the nut, install the gasket (o-ring) cover, and snap ring,you install a different water pump the person doing it needs to know how to set the gear lash 
Life is short drink the good wine first

Offline eagle19952

  • Hero Member
  • *****
  • Posts: 3979
Re: Water Pump Failure in Seattle!
« Reply #7 on: May 31, 2016, 03:54:43 PM »
You pop the cover on the front of the pump remove the impeller pull the seal install the seal,install the impeller ,tighten the nut, install the gasket (o-ring) cover, and snap ring,you install a different water pump the person doing it needs to know how to set the gear lash 

read that part carefully about the gear lash. might be important...
Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 N, DD, Allison on 24.5's 12kw Kubota.

Offline niles500

  • Niles500
  • Hero Member
  • *****
  • Posts: 1320
  • ROSIE
Re: Water Pump Failure in Seattle!
« Reply #8 on: May 31, 2016, 05:17:42 PM »
According to Ocala Detroit, "not tight, just a 'little' lash, not sloppy" was how we did it, worked fine- FWIW
(\__/)
(='.'=)
(")_(")  

- Niles

Offline Geoff

  • Hero Member
  • *****
  • Posts: 1678
    • Geoff & Sherry's RTS Conversion Pics
Re: Water Pump Failure in Seattle!
« Reply #9 on: May 31, 2016, 05:37:29 PM »
I could rebuild the old pump, but I have yet to see how anyone can pull the impeller seal out without taking the pump off and apart.  It must take some Kent-Moore tool I have never seen.

--Geoff
Geoff
'82 RTS AZ

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20287
Re: Water Pump Failure in Seattle!
« Reply #10 on: May 31, 2016, 06:17:16 PM »
You cannot replace the seal on a pump that has the bolt on cover without removing the pump but the pump with the snap ring and cover the seal is right behind the impeller
Life is short drink the good wine first

Offline daveola

  • Galactic Bustastic!
  • Sr. Member
  • ****
  • Posts: 291
  • Big Red and Little Red
    • Dave's Bus
Re: Water Pump Failure in Seattle!
« Reply #11 on: May 31, 2016, 06:35:14 PM »
I don't even know what it means to set the gear lash?

Anyways, the new pump is in.

The bus used to run with the temp gauge really solid at 185 once I hit temp.  Now it's running really solid at 190, right at the top of the temp bounds.

Should I be concerned?

Offline niles500

  • Niles500
  • Hero Member
  • *****
  • Posts: 1320
  • ROSIE
Re: Water Pump Failure in Seattle!
« Reply #12 on: May 31, 2016, 06:52:18 PM »
Did you bleed both Tstats?
(\__/)
(='.'=)
(")_(")  

- Niles

Offline eagle19952

  • Hero Member
  • *****
  • Posts: 3979
Re: Water Pump Failure in Seattle!
« Reply #13 on: May 31, 2016, 08:31:59 PM »
I don't even know what it means to set the gear lash?

Anyways, the new pump is in.

The bus used to run with the temp gauge really solid at 185 once I hit temp.  Now it's running really solid at 190, right at the top of the temp bounds.

Should I be concerned?
might have an air lock.. yes watch the temp.. do you have over temp shut down or are you it ?
Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 N, DD, Allison on 24.5's 12kw Kubota.

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20287
Re: Water Pump Failure in Seattle!
« Reply #14 on: June 01, 2016, 06:05:23 AM »
The engine could have had the 5130701 high capacity water pump and they sent you the standard water pump for your serial number too
Life is short drink the good wine first