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Jul 21st, 2025 | | | | Joined: Mar 2020 Posts: 44 'Bolter | | 'Bolter Joined: Mar 2020 Posts: 44 | Hello All,
I am at the tail end of a 216-235 Engine Swap. A machinist friend will be shortening the water pump shaft for me. Can anyone tell me where I can locate the correct short pulley? I have tried calling and emailing Jim Carters but cannot seem to get thru. They provide it with the water pump but they do not appear to sell them separately. Classicchevy.com has one but they are unable to tell me the groove width. The groove on the HB pulley is 5/8.
Thanks!
Patrick | | | | | Joined: Mar 2014 Posts: 4,208 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,208 | I don't know about the width of Classicchevy's pulley, but the one I'm using matches the harmonic balancer's pulley and came with the pump I bought. Fan belt top width is 1/2", however.
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
| | | | | Joined: Mar 2020 Posts: 44 'Bolter | | 'Bolter Joined: Mar 2020 Posts: 44 | Jon, thank you for your reply. Did you buy the water pump with the shortened shaft for the 235 swap? | | | | | Joined: Sep 2001 Posts: 29,262 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,262 | Jon, . . . Did you buy the water pump with the shortened shaft for the 235 swap? Or, did you use the water pump relocator plate? | | | | | Joined: Mar 2020 Posts: 44 'Bolter | | 'Bolter Joined: Mar 2020 Posts: 44 | Jon,
Can you tell me where you purchased the water pump?
Thanks
Patrick | | | | | Joined: Dec 2018 Posts: 2,451 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,451 | Patrick m I went to Jim Carters on Feb 2nd 21, they are closed due to covid but a sign said to call they would put parts on the loading dock for you. Tried-could'nt get thru,went and knocked the girl said go to the dock they will help you. Finally got my parts. Had driven way out of my way to go there! were nice once we conected ! | | | | | Joined: Mar 2020 Posts: 44 'Bolter | | 'Bolter Joined: Mar 2020 Posts: 44 | Fixite7, thanks for letting me know!
Patrick | | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | On the 216 pump that I converted to a bolt-on 2-groove pulley by machining the belt groove off the pressed-on pulley into a mounting flange, I used a pulley for a 302 Ford V8. It was necessary to re-drill the fan mounting holes to the proper bolt circle, but the pulley hub has plenty of room to do that.
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: Mar 2020 Posts: 44 'Bolter | | 'Bolter Joined: Mar 2020 Posts: 44 | Hi Jerry,
That sounds like an interesting idea!.
Patrick | | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | That setup needs another idler to wrap the belt further around the crankshaft hub. The belt will slip and squeal every time the A/C compressor clutch engages with the limited contact on the drive pulley. Pulling the belt through the gap between the crank and the water pump and adding an idler will give all the pulleys at least 180 degrees of belt contact.
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: Dec 2018 Posts: 2,451 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,451 | Patrick M Did you know you can easily take the back off your water pump,press the hub back,cut the HARD shaft off (it's a bearing race) put your back on,you 've got it. use a cut=off wheel on the shaft. Found a sheave (pulley) at the swap meet 3724816 that is 7 1/8 inch that I think is close 2 inches deep, Have been watching for a sheave too. The trouble is may be too big in diameter ! maybe our number crunchers will tell what that part no. fits Also have another GM looking sheave that is smaller but no no. Have found that you push your hub back and stop just before it rubs on the pump body is close (thats with the 2 inch deep sheave I think ,been a while) I hate to spend 140$ just to get a sheave when I have a pile of those pumps. | | | | | Joined: Mar 2020 Posts: 44 'Bolter | | 'Bolter Joined: Mar 2020 Posts: 44 | coilover,
These will help immensely! Very much appreciated.
Patrick | | | | | Joined: Mar 2020 Posts: 44 'Bolter | | 'Bolter Joined: Mar 2020 Posts: 44 | fixite7
Thank you! I apologize for the late response. For the moment I am using a electric fan until I can acquire all the right parts. I appreciate the model# I'll keep an eye out.
Patrick | | | | | Joined: Jan 2016 Posts: 5 New Guy | | New Guy Joined: Jan 2016 Posts: 5 | Anyone figure out the pulley part number? What do you need to press the shaft to the right size. The conversion pumps keep going up in price or are no longer available. Would like to see what the process involves. | | |
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