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Jul 21st, 2025 | | | | Joined: Jun 2012 Posts: 166 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 166 | I finally got my 270 rebuilt in the ol 51 3 ton. I drove it one time in the front yard and the water pump went out. I pulled it off pretty easily but the pulley is stuck on the pump and is not budging no matter what we try. I really need help finding means to get tje pulley off or someone who could steer me to a new/reman pump.
Any ideas ?
Thanks, Troy
| | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | The pulley is pressed on. Try using a puller bolted to the fan attaching holes with the jackscrew bearing against the center shaft. GMC pump rebuild kits are available on Ebay.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jun 2012 Posts: 166 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 166 | Jerry, done tried that puller thing. It's pressed on like you said. I can't rebuild the pump if I can't get the stupid pulley off. It's getting bent up already  TT | | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | How many bolts are you using? I'd suggest making a puller from steel plate that pulls on all 4 bolts at once. A piece of 1/2" plate with a fine thread nut welded to the middle for the jack bolt, and 4 bolts sharing the load should keep the pulley from bending.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2008 Posts: 4,903 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,903 | What is bent? Is it the pulley or the shaft. You probably just need to buy a new water pump with a pulley on it. If you have bent the pulley, you will never get it straight. There are some on eBay, but they aren't cheap. It is a GMC only part. | | | | | Joined: Jun 2012 Posts: 166 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 166 | Thank you sir for the information and I will look again at eBay. I guess that's my only option now because it is been pretty good TT | | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | Hang onto the old one, Red. I can make a pulley, or adapt a different one to your pump shaft.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jun 2012 Posts: 166 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 166 | Wow, that's cool Mr. Jerry H. ! When I'm able to pry the other one off (if I can), I'll holler at you all the way from Alabama !
Troy
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