Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-13-2002, 01:41 PM   #1
2 Rivet Member
 
Join Date: Jun 2002
Posts: 24
Water pump has quit

'77 Excella 500, 31 ft, center bath. Finally, I thought, had enough of the bugs fixed to try it out. My son (the real owner) took it for a short vacation Sunday, called this morning that the water pump quit last night. Today he found a blown fuse (I guess on the 12 V board), had gone into town and got a fuse, put it in, but the pump still wouldn't run, fuse didn't re-blow.

Sounds like whatever blew the fuse may have also fried the motor. Have just order a Service Manual (finally), but in anticipation of having to remove the pump to either repair or replace, I'm looking for any advice that can help me out --- for getting to and removing the pump, or anything electrical that could be the real problem.
__________________

__________________
roessler is offline   Reply With Quote
Old 08-13-2002, 02:15 PM   #2
3 Rivet Member
 
1962 19' Globetrotter
2001 31' Excella
Join Date: Aug 2002
Posts: 242
Images: 3
I'm only a novice, so I have no idea what other problems it may be. But as far as getting to the water pump and access to it, on my 78 Center Bath Excella it's in the wardrobe across from the bathroom and very easily accessible.
__________________

__________________
Craig is offline   Reply With Quote
Old 08-13-2002, 02:40 PM   #3
2 Rivet Member
 
Join Date: Jun 2002
Posts: 24
Pump is in bad location???

From previous work, I know the pump is behind the oven, and sort of behind and below the 12v fuse panel. My impression is that the oven/range will have to come out to access the pump. I hope I'm wrong.
__________________
roessler is offline   Reply With Quote
Old 08-13-2002, 08:01 PM   #4
2 Rivet Member
 
sovereign's Avatar
 
mill springs , North Carolina
Join Date: Jun 2002
Posts: 43
Images: 6
on my 77 sovereign,just as you come into the coach on the left beside my oven is a sliding door where you can get too my pump and oven. but mine is a rear bath/center twin layout
__________________
sovereign is offline   Reply With Quote
Old 08-14-2002, 01:12 PM   #5
Rivet Master
 
davidz71's Avatar
 
1986 25' Sovereign
Southern Middle , Tennessee
Join Date: Mar 2002
Posts: 3,149
Images: 23
I will try to post pictures of my pump location, under the oven on my '77 Excella 500 rear bath.
__________________
Craig

AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
davidz71 is offline   Reply With Quote
Old 08-14-2002, 01:19 PM   #6
Rivet Master
 
davidz71's Avatar
 
1986 25' Sovereign
Southern Middle , Tennessee
Join Date: Mar 2002
Posts: 3,149
Images: 23
Let's try again.
Attached Thumbnails
Click image for larger version

Name:	mvc-648f.jpg
Views:	220
Size:	68.2 KB
ID:	410  
__________________
Craig

AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
davidz71 is offline   Reply With Quote
Old 08-14-2002, 01:21 PM   #7
Rivet Master
 
davidz71's Avatar
 
1986 25' Sovereign
Southern Middle , Tennessee
Join Date: Mar 2002
Posts: 3,149
Images: 23
Another shot.
Attached Thumbnails
Click image for larger version

Name:	mvc-649f.jpg
Views:	228
Size:	57.6 KB
ID:	411  
__________________
Craig

AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
davidz71 is offline   Reply With Quote
Old 08-14-2002, 01:38 PM   #8
2 Rivet Member
 
Join Date: Jun 2002
Posts: 24
Thanks for the info and pix, however I know where the pump is, the problem will be getting access to it since its behind the oven, and can barely be seen looking through the opening just to the left after leaning in the door.

I was hoping someone would have some ideas on trouble shooting the circuit before I actually have to pull out the pump/motor. I am guessing the circuit goes from the fuse, then maybe parallel circuits through the ON-OFF switches on the Control Panel and in the Bathroom, then the pressure switch, finally the motor and ground, although maybe not in the order just said.

I think I'll start checking resistance to ground beginning wherever I can access the circuit, might get lucky and find a bad switch.

Does anyone have any experiece replacing the OEM pump/motor with a small centrifugal pump, or other style pump? It seems like just about any kind of pump will work as long as the gpm and discharge pressure are sufficient, and put a check valve on the inlet and/or outlet to keep up the system pressure. Comments?
__________________
roessler is offline   Reply With Quote
Old 08-14-2002, 04:02 PM   #9
Rivet Master
 
davidz71's Avatar
 
1986 25' Sovereign
Southern Middle , Tennessee
Join Date: Mar 2002
Posts: 3,149
Images: 23
On-off switch is in series with the power source to the water pump. When the switch is depressed to the on position, 12 volts should be present at the pump and the light illuminated. If the light does not illuminate, the switch may be defective. There should be continuity between the two terminals with switch in the closed position. Your fuse may blown or the holder has a short.
The red wire to my pump was loose on the pump so it would not always work.
__________________

__________________
Craig

AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
davidz71 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Water Pump David Hall Water Heaters, Filters & Pumps 8 01-12-2004 09:31 PM
Water pump question ipso_facto Water Heaters, Filters & Pumps 12 12-04-2003 01:12 PM
Water Pump Joan D'Andrea Water Heaters, Filters & Pumps 3 11-01-2002 07:31 AM
need plumbing map for water pump silverbullet Water Heaters, Filters & Pumps 1 09-22-2002 10:13 PM
Water Pump Dbraw Water Heaters, Filters & Pumps 6 06-15-2002 11:35 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:23 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.