New Water Pump, Fan & Accu-Link Belt, Kama 554

[roy697]

My thought was a factory made hole like on my brush hog to remove the bolts on the blades for replacement, guess I am not very clear.

[bradblazer]

It's late I'll have to repair this post later. The pictures are in reverse order. I got the pump apart without damaging anything too badly. The bearings are #6303-2RS. I should be able to get them locally no problem. The water seal is an unknown for me to acquire. Does anyone know of a good sourse for these? The labels on the rubber part are WJHT and TN86.

Edit: The pictures are in order now. Before I started I flushed and rinsed the radiator. I removed the backhoe, fed some round bales to the animals, and removed the loader while doing that. Here are the picture descriptions:

1. Removed (OEM Chinese!) battery. 2. There are 2 nuts to remove under the radiator. These are 2 big carriage bolts with the heads in slots on the bottom of the radiator. 3. The other rigid support is a rod from the top of the radiator to the thermostat outlet casting. 4. Alternator side view. 5. Fan shroud and top support disconnected and hoses loosened to allow radiator to be pulled.

6. Radiator out of the way. 7. Pump assembly pulled. 8. Engine sans water pump. 9. Steering wheel puller on the pulley. The mismatched M8 screws were the best I could find.


10. Doh! That end is a plastic spacer hiding a retaining nut! You might notice the divot I pulled off around one of the holes. Luckily I didn't have the screw in very deep and there are still good threads below that. 11. The pulley came off nicely once the nut was removed. An impact wrench is sovreign for removing a nut from a free-spinning shaft. 12. After wiping off the watery grease I was able to remove the bearing retaining ring. That's my heavy duty ring pliers from Northern Tool.


13-16 Pulling the impeller. The same 8mm screws fit the holes in the impeller so I could use the steering wheel puller. I sprayed it with penetrating oil to put the screws in and possibly help loosen impeller on the shaft. It popped a little as it broke free and pulled off just fine. That's a ceramic seat pressed into the end of the impeller that mates with the seal in the pump body. You can't see it from this picture but it was sitting a little crooked on the impeller. That may have caused a wobble that fatigued the seal bellows.


17. The seal in the pump. You may be able to read "TN-86". 18. I drove the shaft out on the press. There were 2 retaining rings in 1 groove against the inside bearing that pushed the seal out as I drove the shaft out. For some reason I didn't get any more press pictures but I was also able to press the bearings out. There were 2 #6303-2RS bearings separated by about a 1" spacer tube.

[mrmikey]

Wonder about a seal for a circulating pump on a hot water baseboard heating system. ....Mike

[bradblazer]

Thanks Mike
McMaster actually has some similar seals but not metric or anything with dimensions close enough for me to think it will work. Style #3 looks pretty similar to what I have.
www.mcmaster.com/#pump-seals/=ajog0o

My seal is 35mm OD x 20mm long. The shaft is 17mm and the bore in the impeller for the flanged seat is 25mm.

[mrmikey]

I wonder if you go to a plumbing supply shop with the old one and see if there's some way they could match it up.
With all the import stuff nowdays you'd think there'd be a metric seal somewhere.....Mike

[bradblazer]

I'll have to try that. The roads have been slick here so I haven't been able to do much running besides getting to work.

I finally fixed my post above!

[3RRL]

Hi Brad (and gang),
Looks like your 554 and mine suffer the same ailments over time?
I see you got right after yours and posted all those terrific photos right away. I'm surprised as to how easy your pump came apart compared to mine ... mine was trashed !! Glad you found my notes useful though. Are you gonna put that same belt as I used on yours Brad?

It's been a year since I did the last repair and about 100 hours on the tractor since (883hrs now). Listen to this...I've had zero problems since my engine rebuild and that water pump issue, so there's really not much to report on.
LOL...maybe I FINALLY fixed everything on that dang tractor?
Rob-

[Rich Waugh]

You were doing fine until you said that, Rob. Now your hubris will be rewarded with a string of broken stuff. At least if it was me that's the way it would go. :-)

RIch

[bradblazer]

Hey Rob,
Good to hear from you! I sure hope mine doesn't suffer from ALL of the same ailments . I suppose I should finally post the rest of my repair. It got dragged out because I had a concurrent project with my 98 Ford Explorer. I was driving it to work after a recent snow and the front end started grinding and popping like there was a serious problem. I had a nearby service station look at it and after running it on the lift, removing the front drive shaft, and doing some hand turning the diagnosos was front differential damage (ouch). He buttoned it back up and I took it home. Well, in my standard maschochistic fashion I decided to look at it myself. I got the differential out and opened it up and found...nothing. The gears all looked great! The only evidence that something was wrong anywhere was a small amount of slop in the right CV axle. In the meantime I noticed all of the ball joints were pretty much shot since the boots were rotted. I replaced all of the ball joints and both front CV axles. Got it all back together before the Superbowl (did I ever mention that I was born and raised a Cheesehead? ) and had the alignment done yesterday. Low and behold it's fixed!

In the meantime I had ordered some pump seals from McMaster that seemed "close" in hopes I could make something work. The rubber bellows failed on the original seal. The ceramic seat was inserted a little crooked in the impeller and I think it caused the bellows to have to flex with each rotation. The one I was able to use was Mcmaster 9281K183 Shaft Seal Type 304, Industry #1000, .625" Shaft, 1.437" Seal OD. The metal cup was a little bigger than the OEM. I took the ceramic seal, spring, and bellows out of the oversized cup. The bellows was firmly glued in the OEM cup so I had to cut it out, leaving a smooth ring of rubber in the bottom. I trimmed the outer edge of the new bellows off where it wrapped around the spring and then I was able to insert it into the old cup and glue it in place with some tire patch cement. In this picture you can see the rebuilt seal in the lower right corner. To it's left is a gasket made from a tire patch that the seal will sit in. Lower left is the original ceramic seat that inserts into the end of the impeller. (Does owning a Chinese tractor make me a tightwad by definition? Chip had a new pump for 150 some bucks.)



I used a big deep socket to press in the bearings with the spacer in between. The shaft then had to be pressed into the bearings and I used the old tubular piece shown to support the inner races as I tapped the shaft in. The shaft has 2 snap rings in 1 groove where it stops against the bearings.

I centered the tire patch as good as I could over the seal bore and used a piece of PVC to tap the seal in place. Then I trimmed off the excess rubber. The centering of the seal around the shaft turned out very good.


I pressed the impeller on the shaft and then worked on the gaskets. I use a specially sharpened pencil and regular paper to rub out the gasket pattern, then stick it to the gasket material and cut it out.


Then my camera battery died but I just put some Tack and Seal on the gaskets and bolted it all back together. I also of course put on all new radiator hoses. I had taken the originals in to the parts store and done a comparison fit. About the belt - I had forgotten to get a new one but I noticed hanging on the wall some leftover Powertwist Link Belt about the right length! Got it all back together and filled with Fleet Charge. The only leak was where I forgot to tighten a hose clamp. I did notice the alternator pulley wobbling a lot and the problem turned out to be a loose retaining nut on the pulley.

[mrmikey]

Glad it worked out for you, nice job.
Another way to cut a gasket is to lay it on the piece you're needing to seal (waterpump) and tap around the outside with a small hammer. Yours turned out fine tho so whatever works, the end justifies the means ......Mike

[GuglioLS]

Feb 12, 2011 22:46:06 GMT -5 bradblazer said:

.....SNIP......SNIP........(Does owning a Chinese tractor make me a tightwad by definition? Chip had a new pump for 150 some bucks.)

No but you've admitted to being one of those several times. Which begs the question - did you return for credit the unused seals from McMaster Carr? ;D

$150 sounds very reasonable, but nothing like the satisfaction of doing it yourself right? I think now you know whats inside there and your repair should last longer than the original.

Nice repair documentation Brad, glad you got the front end fixed up on your Explorer too. Nothing like a break down and repair in the middle of winter huh?

Larry

[3RRL]

Yeah Larry, I know what you mean about doing repairs in Winter.
Remember when you came out to help me and it snowed when I was doing that front wheel drive repair on my Kama?

Brad, I hope you're right about not suffering the same ailments as My Kama, and I would guess you won't. Remember that most of my repairs (except a few) resulted directly from operator malfunction and abuse, lol.

I just saw a documentary on the greatest coach of all time...Vince Lombardi, and how he took the Packers to win 3 Super Bowls from a so-so team. This is their 4thchampionship! You must be elated...
Rob-

[bradblazer]

Mike - good suggestion. I had heard of that before. My rubbing method has worked well for me in the past plus I was able to quickly make the patterns then sit in the warm house and cut them out.

Larry, I'm a packrat too so I just kept the extra seals. Plus my whole order was only about $25. I did some waiting on weather but mostly I had okay weather to work in. Things are really looking up now - it's supposed to be in the 70s on Saturday.

Rob, I forgot to mention it's great to hear that your Kama has been running fine since the big rebuild!

Oh, who can forget Vince Lombardi and the Glory Years. When I was a kid Starr was the coach and the team was not strong. Everyone longed for those Glory Years. I hear there's a Broadway play called Lombardi that's pretty awesome. At the Packer Hall of Fame at the stadium in Green Bay they have his office reproduced. They also have lots of great quotes on the walls near where the SB trophys are on display.
I really like the current team. They have a wholesome image, some interesting characters, and of course they Brought it Home! By the way its the 4th Superbowl but it's the 13th championship.

[rkirk80]

I recently bought a kama 454 tractor and would like to know where to get parts