Help, Borgeson PS Pully alignment woes
Thread Starter
Drifting
Joined: Nov 2004
Posts: 1,281
Likes: 927
From: Indiana
2024 C3 of the Year Finalist- Unmodified
Help, Borgeson PS Pully alignment woes
After reading about all of the successes with the Borgeson PS conversion I opted to buy one for my daughter's 72. I figured it would be easier to do it now before dropping the body back on.
I'm having major issues with pully alignment and I'm using the factory mounting system from Paragon, along with a couple of different balancer pullys. One is #1813 62-80 two groove, the other is #887 62-80 and a #2579 for 75-80 with A/C and or 81-82 all. Also have the 1769 63-74 PS add-on pully but it doesn't fit inside any of the above pullys.
None of those tried will line up with the PS pump pully.
The engine is a balanced 383 built by the local sprint car engine bulder and he uses a harmonic balancer that is 1 3/16" thick, 6 1/2" diameter.
Any wise counsel and advice from those that have won this battle with pully alignment?
Thanks
I'm having major issues with pully alignment and I'm using the factory mounting system from Paragon, along with a couple of different balancer pullys. One is #1813 62-80 two groove, the other is #887 62-80 and a #2579 for 75-80 with A/C and or 81-82 all. Also have the 1769 63-74 PS add-on pully but it doesn't fit inside any of the above pullys.
None of those tried will line up with the PS pump pully.
The engine is a balanced 383 built by the local sprint car engine bulder and he uses a harmonic balancer that is 1 3/16" thick, 6 1/2" diameter.
Any wise counsel and advice from those that have won this battle with pully alignment?
Thanks
Melting Slicks
Joined: Mar 2006
Posts: 3,456
Likes: 102
From: Piedmont Va
St. Jude Donor '11-'12-'13,'19-'20
I had same issue, first two pulley I tried would not line up. This is the one that eventually worked...no A/C
http://www.zip-corvette.com/ProductDetails/ProductDetails.aspx?pid={be784f01-79be-456c-a7d5-a9d8db711239}&gid={cb55b3cc-401d-48b0-ad78-a8c37ee5a6e1}&GroupName=Power+Steering+P ump+Pulleys&pname=65-74+Hiperf+Power+Steering+Pump+Pulley+(Ca st+Iron)&Referer=&Alias=&ptct=SGR-SR&CTitle=&
There is also a specific style pump for this, not sure exactly which part # but it has the tapered shaft with the locking key.
http://www.zip-corvette.com/ProductDetails/ProductDetails.aspx?pid={be784f01-79be-456c-a7d5-a9d8db711239}&gid={cb55b3cc-401d-48b0-ad78-a8c37ee5a6e1}&GroupName=Power+Steering+P ump+Pulleys&pname=65-74+Hiperf+Power+Steering+Pump+Pulley+(Ca st+Iron)&Referer=&Alias=&ptct=SGR-SR&CTitle=&
There is also a specific style pump for this, not sure exactly which part # but it has the tapered shaft with the locking key.
Last edited by CheezMoe; Nov 17, 2010 at 10:37 PM.
Drifting
Joined: Jun 2008
Posts: 1,495
Likes: 134
From: Blanco County, TX
I'm in the middle of doing one as well and had a minor alignment issue. I bought the pump and bracket from Borgeson. I have a double groove balancer pulley and keyed/tapered (cone shaped) pump pulley from Ecklers. It's on a ZZ4 motor. I had to shim the pump bracket with a couple of stainless steel washers. There is plently of thread in the block. The stainless washers I used (Lowe's, not HD) are thinner so I could do more fine adjusting. Once I get it finished and I'm satified with the alignment, I'll buy and cut a proper spacer.
Have you had any problems getting the pittman arm on?
If you change the balancer pulley, you're going to have to change your fan pulley and your AC bracket/pulley.
Have you had any problems getting the pittman arm on?
If you change the balancer pulley, you're going to have to change your fan pulley and your AC bracket/pulley.
Race Director
Joined: Apr 2000
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
The problem we with pulley alignment boils down to: Is it a "real" corvette motor. Original Corvette SBC/SWP motors ran a pulley offset that differed from every other SBC/SWP. If our P/S bracket & pulley is used on an original motor with all original brackets and pulleys there will be no issues. If the pulley system is just a generic SBC then you will need a different pulley. Hope this helps.
Thanks, Jeff
Thanks, Jeff
Been saying that for years here 
Drifting
Joined: Jun 2008
Posts: 1,495
Likes: 134
From: Blanco County, TX
If I already have bracket and pulley's that are in alignment from an original motor, why would I buy new ones? I think you could make a killing selling brackets/pulleys for generic SBC's since that's where most of these units are probably going.
Race Director
Joined: Jan 2000
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From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
He's just saying that Corvette stuff is often different. Water pumps are different lengths etc. BUT...regular stuff WILL bolt on....but the original Vette brackets will be off some. Just a matter of figuring out what you're dealing with.
I have about as goofy a deal as you can imagine with a bigblock in a C-2 using .600" raised exhaust ports, C-3 pulleys, aftermarket water pump, an early Camaro style alternator bracket, super tall valve covers and a Nippondenso alternator. I was able to get the proper pulley's from Borgeson just by explaining exactly what I was using. All lined up just fine. Then later I installed a Jesel cam belt drive and had to space the water pump out 1/4" and was able to simply do the same thing with the PS brackets.
Post some pics and maybe we can help narrow it down.
JIM
I have about as goofy a deal as you can imagine with a bigblock in a C-2 using .600" raised exhaust ports, C-3 pulleys, aftermarket water pump, an early Camaro style alternator bracket, super tall valve covers and a Nippondenso alternator. I was able to get the proper pulley's from Borgeson just by explaining exactly what I was using. All lined up just fine. Then later I installed a Jesel cam belt drive and had to space the water pump out 1/4" and was able to simply do the same thing with the PS brackets.
Post some pics and maybe we can help narrow it down.
JIM
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Race Director
Joined: Apr 2000
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
That's kind of an odd marketing strategy. If I had a "real" corvette motor, why would I be installing a non-OEM power steering unit?
If I already have bracket and pulley's that are in alignment from an original motor, why would I buy new ones? I think you could make a killing selling brackets/pulleys for generic SBC's since that's where most of these units are probably going.
If I already have bracket and pulley's that are in alignment from an original motor, why would I buy new ones? I think you could make a killing selling brackets/pulleys for generic SBC's since that's where most of these units are probably going.
Drifting
Joined: Jun 2008
Posts: 1,495
Likes: 134
From: Blanco County, TX
Don't get me wrong. I'm not complaining. The alignment actually turned out to be easier than I was expecting. I talked to Jeff (with Borgeson) before I bought and he told me I would have to look elsewhere for a pulley setup, so I knew what I what getting into. My point was simply that most (I'm guessing) of these units are not going into original cars, and I think Borgeson could make more money and have less frustrated customers if they had a few other bracket/pulley options.
