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Topic: Water Pump Leak 6v92 (Read 989 times) previous topic - next topic

Water Pump Leak 6v92

Had the coach into Stewart & Stevenson for service and asked about the small amount a water I keep seeing on the water hose beneath the water pump. I suspected the hose clamp and had them replace it. The mechanic said it could be the water pump and showed me where the weep hole on the back of the pump was so I could check it. Also said to check after I had run it for a while. Drove it home and checked and sure enough it's leaking out the weep hole.

Has anyone been down this path? I've found several 6v92 water pumps on ebay for less then a $100. That seems almost too cheap. Found a rebuild kit alone that was $175! Anyway what do you guys think?

The water pump is right in plain sight on the back err make that front of the engine. Is this something I can replace? Any special tools required? Any special techniques? Anything to watch for?

see ya
ken
The selected media item is not currently available.ken & dori hathaway & Big Agnes
🍺1992 U300 GrandVilla WTBI #4150 FOT FBP 2011
✨6V-92TA DDEC Parlor Coach 350HP Series 92
🏁2011 Nissan XTerra Pro-4X

Re: Water Pump Leak 6v92

Reply #1 –
If you can use a wrench, its straight normal.

Re: Water Pump Leak 6v92

Reply #2 –
I just replaced mine on my M11 and it was a bit of work for the tech.  I would bet Dave M knows what he is saying though.  It was leaking on me too and I decided to change it before it let go.
2025 Wanderbox Outpost 32 on F600 Expedition Motorhome
2015 Born Free Royal Splendor on Ford 550 nonslide version  for sale
Former Coaches  covering. 360,000 miles
1999 34 U270
2000 36 U320
2001 42' double slide U320
2018 Jeep Rubicon

Re: Water Pump Leak 6v92

Reply #3 –
The DD water pump on the 92  is easy if you have any mechanic skill at all, easier than most cars, just larger everything.

Re: Water Pump Leak 6v92

Reply #4 –
Ken,
I would get it from DD.  In 2003 I purchased a new one from DD (had a mechanic install it - so no advice there, labor was $266).  Pump was $204 (plus refundable core of $189).  So not much more money to make sure you get a quality part.  I replaced mine because the mechanic "thought" the impeller might be slipping and causing overheating.  Turned out the old one was fine.
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho

Re: Water Pump Leak 6v92

Reply #5 –
I just want to thank you for doing all of this stuff on your coach so you can guide me when my time comes. Keep up the good work.
The selected media item is not currently available.Kent Speers
Locust Grove, OK
1993 U300 SSE 40' (Restored at FOT 2009) Build 4323
720 watts Solar
6V92TA DDEC Silver Engine
2014 Subaru Outback

Re: Water Pump Leak 6v92

Reply #6 –
Just love em parts guessers bright bulbs, thank you. $$$ Keep em coming.

Re: Water Pump Leak 6v92

Reply #7 –
I'd replace the 2 thermostats while you are at it. Ernie- former 6v92 owner, now with an 8v92

Re: Water Pump Leak 6v92

Reply #8 –
Quote from: Dave M –
The DD water pump on the 92  is easy if you have any mechanic skill at all, easier than most cars, just larger everything.

Dave,

Yep, but not so easy if you have the rear radiator model. Feel for anyone trying to get in the back.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: Water Pump Leak 6v92

Reply #9 –
Pierce, amen bro. They are nifty coaches as long as some else does the engine scramble ;D
Bro Brad had one, a nice unit w/ retarder etc, but replacing radiator or anything on the 6V-92 was no joy. Ken has the 1992, that is a side rad ?
Dave M

Re: Water Pump Leak 6v92

Reply #10 –
@Dave Yep side radiator. Wouldn't even consider changing out the water pump myself if it was a rear radiator. I know my limitations. :)

I'll be pricing out a new water pump on Monday. If in the $200 range will go with that if not I'll be trying out one of the rebuilts on ebay. Will keep my old pump and have it rebuilt if the ebay rebuild fails down road.

see ya
ken
The selected media item is not currently available.ken & dori hathaway & Big Agnes
🍺1992 U300 GrandVilla WTBI #4150 FOT FBP 2011
✨6V-92TA DDEC Parlor Coach 350HP Series 92
🏁2011 Nissan XTerra Pro-4X

Re: Water Pump Leak 6v92

Reply #11 –
Ken,
Some times we are just lucky, and as for the rebuilt water pump, I would be looking at DD Reliabuilt pump & gasket, even both hoses.  Geez, this bring back memories, the water pumps come in 3 varities, standling, walking and running styles, would guess on the 6V there would be two, standing and running.  DD made so many versions of everything
Dave M

Re: Water Pump Leak 6v92

Reply #12 –
Thanks Dave. Reliabuilt was the key word I needed. Found one on ebay.

Detroit Diesel Reliabilt Water Pump 6 8V PT R23506623 | eBay

Now I need to figure out if I have a walking or running pump. I'm pretty sure the one in the link above is a running and which makes me believe mine is a walking. I'll have to take some pictures when I can get back to the coach.

see ya
ken
The selected media item is not currently available.ken & dori hathaway & Big Agnes
🍺1992 U300 GrandVilla WTBI #4150 FOT FBP 2011
✨6V-92TA DDEC Parlor Coach 350HP Series 92
🏁2011 Nissan XTerra Pro-4X

Re: Water Pump Leak 6v92

Reply #13 –
The 8V pump is different,  find on a valve cover the list of items used, if the water pump is different, it will have a number for it, not a part# but a code that they can match,

Re: Water Pump Leak 6v92

Reply #14 –
I think Dave is talking about this.  I took this picture several years ago.
It's a good idea to take a good picture of it in case it gets hard to read down the road in a few years.  Print it out and put in your coach binder.
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho

Re: Water Pump Leak 6v92

Reply #15 –
Yes, use both the w/p number and the serial number O6VF---------- listed along the lower edge will get what you need.