Progress Thread Off to machine shop

KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
I can only not work on something for so long. Just ordered up a bunch of Lincoln Navigator pulleys. See if 8 rib pulleys and belt will curb my belt slippage.
 
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KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
This was my next step, something to note is I did not have belt slippage issues... I also applied belt dressing liberally
I’m not noticing slippage in the datalog but I am noticing belt dust. I have used dressing and it helped but didn’t seem to help long term. I also may get a machined snout and smaller pulley and might as well take advantage of that custom crank pulley
 

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
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A smaller pulley may make the issue worse but going to 8 rib may offset that. Imo I would redo the inlet tract first, if you have a way to monitor vacuum in the inlet side we can see how much of a restriction the current setup is.
 
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KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
A smaller pulley may make the issue worse but going to 8 rib may offset that. Imo I would redo the inlet tract first, if you have a way to monitor vacuum in the inlet side we can see how much of a restriction the current setup is.
I don’t disagree at all. I have all these ideas in my head. It’s nothing I’m doing right away. Winter project will definitely be the inlet and maybe the snout and pulley.
 

2000xp8

SN Certified Technician
Aug 8, 2003
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I looked back a bunch of pages to find pics, that looks like a lot of belt wrap.
I'd be kinda surprised if it was slipping.
 
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KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
I looked back a bunch of pages to find pics, that looks like a lot of belt wrap.
I'd be kinda surprised if it was slipping.
you may be right, there is a lot of belt dust though. I didnt post a pic but i'm actually using a bigger idler to the left of the blower and it wraps even more. The blower pulley and crank are for an 8 rib belt so i might as well get the rest of the pulleys and run an 8 rib. If anything it wont look like I'm running the wrong belt and it certainly wont hurt.
 

Steel1

Mustang Master
Aug 18, 2017
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Well , can't get much better wrap then that.
What about trying a different type of belt?
When I had my various supercharger set-ups I remember people having good
luck with the Gates fleet runner belts.
 
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KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
Well , can't get much better wrap then that.
What about trying a different type of belt?
When I had my various supercharger set-ups I remember people having good
luck with the Gates fleet runner belts.
I am running a Gates belt for superchargers. Not the green belt though. I think the 8 rib will solve any issue I'm having if its actually slipping. I don't mind the work and the pulleys were less than $100 and it'll look more complete with the whole pulley being utilized.
 

KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
Water pump pulley was a bit of work. It’s a 1/2” bigger, water pump pilot hole was way big and bolt pattern different. Some lathe work and welding required. There was a huge lip on the back side I had to turn off. It’s about .032 from the crank pulley which means I need to remove to put belt on.
 

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KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
I could cut out the hubs and weld in the old one or bore out or sleeve the new one depending on whats needed.
 
Last edited:

KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
Well I got the pulley off and it fought me the whole way. But good news is the new pulley is smaller so I will order a reamer to get it opened up to the right diameter for a press fit.
 
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