Is there a trick to removing vbelt on D17?
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Category: Allis Chalmers
Forum Name: Farm Equipment
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=8740
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Topic: Is there a trick to removing vbelt on D17?
Posted By: ChuckLuedtkeSEWI
Subject: Is there a trick to removing vbelt on D17?
Date Posted: 27 Feb 2010 at 8:10pm
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Was tearing into the D17 for a bit tonite and I got the generator off to fix the rear bearing and was looking at replacing the belts as long as I was this far. Problem was I couldn't seem to find a way to get the v belt around the double pulley for the generator/water pump and the power steering pump. These belts seem pretty worn, and they still don't want to go between the crank pulley and the back of the front bolster. There is some grease/grime built up inbetween but I didn't think there was that much!!
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Replies:
Posted By: kbeatty
Date Posted: 27 Feb 2010 at 8:18pm
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pully has slipped forward the set screw proably has loosened mine doe the same thing
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Posted By: ChuckLuedtkeSEWI
Date Posted: 27 Feb 2010 at 8:54pm
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thanks, that would explain the belt wear.
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Posted By: ChuckLuedtkeSEWI
Date Posted: 28 Feb 2010 at 11:59am
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I turned the engine over and pulled out the set screw which was tight and the threaded hole on the pulley and the tapered hole in the crankshaft line up perfectly so that isn't it. I will have to check on how much gunk is built up between the pulley and the front bolster when I get home later.
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Posted By: jrjuday
Date Posted: 28 Feb 2010 at 12:49pm
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I usually cut the old belt and drive the new one through the gap with a BFH and long drift. Just not much room in there!
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Posted By: ChuckLuedtkeSEWI
Date Posted: 28 Feb 2010 at 7:20pm
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Ok, sounds like a plan. I will cut both off and try to get them matched up this week.
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Posted By: Skyhighballoon(MO)
Date Posted: 28 Feb 2010 at 9:43pm
Chuck - that set screw on the crank belt pulley is REAL important to get right and tight. Mine came loose on my Series IV and ruined the end of the crank and it couldn't be rebuilt...ended doing a full engine rebuild out of the deal with another good used crank...probably a good thing though as a I had bottom end deck erosion at the sleeve o-rings on #4 and the oil pump shaft had cracked. Mike
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1981 Gleaner F2 Corn Plus w 13' flex
1968 Gleaner EIII w 10' & 330
1969 180 gas
1965 D17 S-IV gas
1963 D17 S-III gas
1956 WD45 gas NF PS
1956 All-Crop 66 Big Bin
303 wire baler, 716H, 712H mowers
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Posted By: skipwelte
Date Posted: 02 Mar 2010 at 4:56pm
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When you have the double crank pulley on a D17 its almost impossible to get the belts between the pulley and the front bolster. the BFH and the long drift and lots of 4 letter words seem to work, cause it aint no fun tryin to get the belts back thru that little space without runining something. Good luck!!
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Posted By: Dave(inMA)
Date Posted: 02 Mar 2010 at 5:59pm
And I'll bet that the repair manuals say something like "reinstall fan belts" with no real guidance! LOL
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WC, CA, D14, WD45
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Posted By: BillyL(SC)
Date Posted: 02 Mar 2010 at 7:15pm
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The sleeves that the belts come in from one of our boat engine makers have warnings on them not to remove or replace the belt with the engine running.I have rolled belts over tight pulleys by turning the motor over but never seen anybody try to change a running V-belt.
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Posted By: Dave(inMA)
Date Posted: 02 Mar 2010 at 7:50pm
Billy, I am struggling with the mental picture of some poor demented mechanic trying to remove or install a v-belt on a running engine. I can't make it work - boggles the mind! Certainly raises an interesting question about the boat engine maker's view of the mechanics working on its engines!!!
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WC, CA, D14, WD45
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Posted By: jaybmiller
Date Posted: 02 Mar 2010 at 8:11pm
Someone sent me a video(maybe a youtube ?) of a guy who easily removes AND installs the vbelt on a VW beetle with the engine running !! Don't know where it is,maybe goggle for it, but everytime I played it my fingers cringed !!!
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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Posted By: BillyL(SC)
Date Posted: 02 Mar 2010 at 8:46pm
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I have heard stories of it being done but I can't imagine the guy that looks at the belt in his hand then the running engine and has a light bulb go off in his head."Hey why should I waste the time to shut this thing down?"
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Posted By: diamondc
Date Posted: 14 Mar 2010 at 10:28pm
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someone emailed me a clip of a guy changing a belt with the motor running. looked pretty scary
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Posted By: CTuckerNWIL
Date Posted: 14 Mar 2010 at 11:38pm
Fastest belt change.
http://www.youtube.com/watch?v=Xzo6a16IZgg - http://www.youtube.com/watch?v=Xzo6a16IZgg
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http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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Posted By: legn4
Date Posted: 15 Mar 2010 at 12:02am
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Chuck there is a belt on the market not sure of name . But it goes together in sections(1 1/2" long) there is a tee slot & twist a 1/4 turn you can made a V belt any length.I have used it on a couple of thing that was going to be a bear to take apart. They are red in color & I think I got it from a place that sold industial stuff (bearings belts) etc. HTH
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Posted By: Dave(inMA)
Date Posted: 15 Mar 2010 at 5:52am
Just watched the video CTucker posted - pretty clever, but there's no radiator OR fan in the way! My D14 sports a belt like legn4 describes. Was on it when I bought it. So far, so good! My opinion is that it doesn't have the gripping power of a v-belt, but getting a v-belt on it would mean removing the drive shaft for the crank-driven hydraulic pump.
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WC, CA, D14, WD45
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Posted By: Rawleigh
Date Posted: 15 Mar 2010 at 8:15am
http://www.mcmaster.com/#v-belts/=687li3 - http://www.mcmaster.com/#v-belts/=687li3
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Posted By: ChuckLuedtkeSEWI
Date Posted: 15 Mar 2010 at 6:46pm
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Well, I got pretty good at taking them off and putting them on. Cut the old two off, and matched them up at Napa and came back home. Put the power steering one on, that one was fine. Took a long piece of 1/8" x 1" flat stock about 3' long and rounded the edges and hammered it through the small space. Next belt went on which we had the number off of the old belt to match up. Once I got it on and around the fan, I tried to fit, my generator, and too tight. Old belt must have been way stretched. Worked that one out and pulled it out without cutting it. went to the store on Sunday as Napa was closed and matched up to a new belt 1" bigger. After comparing them, I thought 1" might not be enough so I got the next one up, so 2" bigger then the old. Got that one on and to no suprise, too big. Pulled that one out, and took it back and got the one inbetween. Hope to put that one on tonight and get the generator on and start it up again. Well, even a bad day tinkering on AC tractors is better then a good day at work.
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Posted By: Dave(inMA)
Date Posted: 15 Mar 2010 at 7:21pm
Chuck, I'm sitting here laughing as I read your post - sounds like something that would happen here in my shop! But you are totally right about the last part.
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WC, CA, D14, WD45
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Posted By: DREAM
Date Posted: 15 Mar 2010 at 7:36pm
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Good luck Chuck. I hope it's going better for you than the hydraulic pump repairs to my C.
C Tucker, that was a cool video, but the one where the royal marines changed the engine in a Ford escort in 42 seconds was really neat! The guys that set the guiness record for fastest engine replacement on a VW bug at 1 min. 4 seconds was pretty good too.
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