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Old 02-20-2012, 04:38 PM   #1
chockwald
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Default 6V92 Water Pump R&R, Model # 23506623

Had barely arrived in Tyler, TX at the home of my sister-in-law when the engine water pump had a massive internal seal failure and unloaded a few gallons of coolant on the ground....guess I couldn't have asked for a better "bad" situation....at least I wasn't somewhere in West Texas a 100 miles from anywhere when this happened. With this site's help I have located, and have ordered the replacement remanufactured water pump through Ebay, and should have in my hands by Thursday at the latest. Has anyone here had this specific pump replaced, or done the R&R yourself? I can see 2 of the 3 bolts that fasten the pump to the engine. Looks like I'll need to remove one of the fuel filters to get at the pump with clear access.....as you all know there are two filters....on my Newell there is one filter which has a mounting bracket bolted to the water pump....the other filter is remotely located on the forward wall of the driver side engine compartment. Anyway, looking for any pointers, or help. I have thought about calling in a mobile service via Good Sam ERS.....I am on the road, and I cannot move, so I believe I could get the labor covered by Good Sam ERS. There are three different water pumps that are used with 6V92's.....walking, standing and running. I have the running, and fortunately it is the easiest to find. The one my brother-in-law has on his Blue Bird is very hard to find, and cost him $500. The one I need can be had for $90 plus shipping and tax.....not too bad.
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Old 02-20-2012, 08:09 PM   #2
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I did the R&R of the coolant pump on my 6V92 a couple years ago. I followed the DD manual. The manual shows three bolts holding the assembly to the engine, two long ones and one short one. the locations of the different lengths are obvious. I do not recall the details of removal, I just moved stuff as needed.

The installation is as follows:
1) affix seal ring to pump body.
2) Mount pump so gear meshes with gear in engine and dowel, install bolts lightly.
3) Replace hoses and clamps, tighten after next steps
4) check gear backlash (setting is 1-6 thousandths). The manual isn't clear where to measure the backlash so I used a dial at the outer edges of the impeller.
5) adjust gear backlash by rotating pump around dowel, then tighten bolts
6) install pump cover
7) tighten hose clamps
8) replace items taken loose and refill radiator

The job wasn't hard except for finding a way to collect all the coolant for reuse, ended up with several 5 gallon plastic water carriers.

hopefully this helps
Jon
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Old 02-20-2012, 09:37 PM   #3
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Jon, thank you very much for the detailed description of your R&R. I count 3 bolts too.....one is not directly visible, but I know where it should be. I'm sure it will be easier to get at it when I remove the fuel filter and bracket. Will keep you posted on my progress!
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Old 02-21-2012, 01:51 AM   #4
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If the Bolts go into a Water Jacket, it is best to Seal them with something like Permatex or Silicone. Personally I like Permatex #2.
Wet the O-Ring with a little Engine Oil when assembling, you could use a little Lithium Grease if the O-Ring wont stay in place.
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Old 02-21-2012, 03:59 PM   #5
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I don't recall the bolts as going into a wet section of the block and I don't recall putting any sealant on them. You will be able to tell by looking at the condition of the threaded end.

I think I did move the second fuel filter out of the way.

Jon
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Old 02-21-2012, 04:14 PM   #6
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There are no bolts going into a wet section.
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Old 02-21-2012, 04:44 PM   #7
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I haven't done this job yet so that is good news about the bolts not going into a water jacket.
Remember the trick about a little bit of grease to hold the O-Ring in place. It makes it much easier to not have to concern yourself with that or to get everything back together and then have a leak and find the O-Ring on the ground or.....
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Old 02-21-2012, 05:19 PM   #8
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Since I am going to be replacing most of the coolant, I am thinking of just draining out what is left, and putting in a brand new batch. What is the best coolant for a 2 stroke to mix 50/50 with distilled water? I'm thinking I'll need at least 10 gallons of coolant and 10 gallons of distilled water for a total of 20 gallons, right?
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Old 02-21-2012, 05:39 PM   #9
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Here you go;
http://www.newellclassic.com/forum/m...l-engines.html

This is the Bulletin on Coolants and look at page 4 for the Chart on 92 Series Diesel Engines.

And be sure to use Distilled Water since that removes the unwanted Minerals. Page 11 states either Distilled or De-Ionized but I still prefer Distilled.

From page 6;
For best overall performance, a coolant consisting of 50% concentration of antifreeze (50% antifreeze, 50% water) is recommended.
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2007 Yukon, 1981 CJ7 Laredo, 2002 Honda CRV, 1955 Thunderbird, 1952 Pontiac Sedan Delivery, 1952 Ford 8N, 1958 Airstream, 1959 Glasspar 16' Avalon, Cabin in the Woods........what will I work on next
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Old 02-21-2012, 06:04 PM   #10
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Power Cool is fairly inexpensive. The last time I bought some it was under $10 a gal-that's less than I pay for my car's coolant. The Detroit Diesel part number for the concentrate(you mix) is 23512138. They also sell premixed. My local Freightliner dealer sells it.
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Old 02-21-2012, 08:54 PM   #11
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Clarke,
I forgot to advise you to use Anti-Sieze on the Bolts if you don't need to seal them. It isn't always necessary but it does help if you need to get them off in the future. Also a little Lube will help get the correct Torque on the Bolts;
Here is a link to a Chart;
http://www.portlandbolt.com/technica...que-chart.html
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2007 Yukon, 1981 CJ7 Laredo, 2002 Honda CRV, 1955 Thunderbird, 1952 Pontiac Sedan Delivery, 1952 Ford 8N, 1958 Airstream, 1959 Glasspar 16' Avalon, Cabin in the Woods........what will I work on next
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Old 02-21-2012, 10:01 PM   #12
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OK, Steve, thank you....I've located a dealer (Stewart & Stevenson) in Longview, TX....about 30 minutes from where I am....they have both the concentrate and premixed in ample quantities. Anyone out there know for sure how many gallons I'll need to put in if completely empty? I'm guessing 20 gallons, at least that's what someone told me one time. Any confirmation will help! Just want to be sure to purchase enough so I don't have to make two trips....
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Old 02-21-2012, 10:02 PM   #13
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Mr. Ward, thank you for the torque chart....
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Old 02-21-2012, 11:00 PM   #14
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I could tell you for a series 60. As a suggestion maybe a call to Newell would be appropriate.
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Old 02-22-2012, 01:56 PM   #15
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I put Powercool plus distilled water in 8 years ago and it still tests good with the test strips. I have a filter to collect particles that may occur. My 35 foot coach took 23 gallons.

Jon
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Old 02-22-2012, 07:26 PM   #16
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Jon, I'm inclined to believe that is close to the correct amount. I'll get 12 gallons of concentrate and mix my own with distilled water, and have a little left over.
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Old 02-23-2012, 02:27 PM   #17
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Keep in mind that you may need to vent the block. Air can get trapped and keep you from being able to fill the cooling system properly. I usually will fill the radiator and wait a day or so to allow the coolant to level out.

I do like your idea of knowing how much coolant is needed so you have a good idea when the system is full. Have you tried contacting Newell? They may have records on the 6V92.
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https://newellshowcase.com/thumbnails.php?album=214
2007 Yukon, 1981 CJ7 Laredo, 2002 Honda CRV, 1955 Thunderbird, 1952 Pontiac Sedan Delivery, 1952 Ford 8N, 1958 Airstream, 1959 Glasspar 16' Avalon, Cabin in the Woods........what will I work on next
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Old 02-23-2012, 02:58 PM   #18
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Now's a good time to add an overflow tank. I bought a 1-1/2 gallon one from US Plastics. Only had to heat weld a fitting on the top for the hose.
Works great to keep air out of the system.
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Old 02-23-2012, 04:46 PM   #19
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Forest, that is a great idea about adding an overflow bottle to help with the air and be professionally updated.

Clarke, I would take Forest's cue on this one.
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Old 02-23-2012, 05:45 PM   #20
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Just returned from Stewart & Stevenson in Longview, TX where we bought 12 gallons of Power Cool Concentrate. Then stopped off at the supermarket to buy 12 gallons of distilled water. So we now have 24 gallons of mixed coolant to add back in after we finish draining the rest of the coolant, and replace the water pump. Still awaiting delivery of the pump...."Out on truck for delivery".

Steve, how would I vent the block, other than what you did letting it sit for a day, or so letting the coolant level out?
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