Procharger idle pulley and water pump pulley too close?

me2dumb4college · November 13th, 2011, 11:27 PM

Has anyone else had this problem? My belt is rubbing between the ati idle pulley and the water pump pulley.

Should I buy a smaller idle pulley? The tensioner seems to be in the right place...

me2dumb4college · November 14th, 2011, 09:31 AM

Picture worth 1000 words?

stal94gt · November 14th, 2011, 09:37 AM

That is def not right. Im thinking you have your belt run wrong or you have a under drive pulley on your water pump

me2dumb4college · November 14th, 2011, 10:09 AM

Called procharger... evidentally the idle on a 96-00 is 2.3 while the 01-04 is a 1.95... too bad they didnt tell me this when i called last week and asked the differences between the kits... arg

Eagle2000GT · November 14th, 2011, 11:45 AM

My first guess is that you have an underdrive waterpump pulley. My installation manual indicates that the 00-04 are the same. The 99 is different. I had the same problem. I couldn't get it to fit because the previous owner put on underdrive pulleys. I had to buy a crank pulley and instead of getting a stock waterpump pulley I bought a Miezere electric water pump. If you only replace the water pump pulley and you leave the underdrive crank pulley then you won't make enough boost. If this is your problem then it has to be replaced. The stock crank pulley is 6.5".

What size supercharger pulley are you running? If I could do it all over again instead of paying for a stock crank pulley I would buy a 10% over drive pulley. But if you are running a small supercharger pulley it would make too much boost.

me2dumb4college · November 14th, 2011, 11:52 AM

Nah the water pump pulley is stock, I believe. I bought an after market crank pulley at 6.5" (stock) since my harmonic balancer was losing its rubber. The idler pulley was just too big...

Going to pull it and replace it this week. I'll dyno tune it friday and let you guys know what I run.

me2dumb4college · November 16th, 2011, 07:26 PM

So I need help... I got a smaller idler puller, the 1.95 but the belt is still touching just slightly... I tried a larger belt than recommended to hopefully bring the tensioner back just enough to clear it, but it's still rubbing... my only option seems to be a smaller water pump pulley??

Thoughts??

DickH · November 16th, 2011, 07:44 PM

try to get a part number off the water pump pulley and make sure its not an under drive pulley.

me2dumb4college · November 16th, 2011, 07:54 PM

528-AA on the top, F4SE-8A on left side

me2dumb4college · November 16th, 2011, 09:15 PM

It's stock, I'm pretty sure

Eagle2000GT · November 16th, 2011, 10:31 PM

I can't tell very well from the picture but your entire bracket appears to be lower than mine. I was wondering if you might be missing a part. There is an offset adapter that attaches to the bottom altenator bolt. The bolt that goes through the ProCharger idler pulley screws into the offset adapter. It raises the bracket and idler pulley up away from the belt on the water pump pulley. Are you using that offset adapter?

me2dumb4college · November 16th, 2011, 10:39 PM

Originally Posted by Eagle2000GT

I can't tell very well from the picture but your entire bracket appears to be lower than mine. I was wondering if you might be missing a part. There is an offset adapter that attaches to the bottom altenator bolt. The bolt that goes through the ProCharger idler pulley screws into the offset adapter. It raises the bracket and idler pulley up away from the belt on the water pump pulley. Are you using that offset adapter?

do you have a pic? my kit must've been missing the offset adapter

me2dumb4college · November 16th, 2011, 10:56 PM

yea thats how mine's run... it's just a spacer so everything lines up

Eagle2000GT · November 16th, 2011, 10:57 PM

It took me forever to scan this but here is a page from my installation manual. The bottom right drawing shows the idler pulley and the offset adapter.

Eagle2000GT · November 16th, 2011, 11:09 PM

Is is possible that you put the offset adapter on upside down? I still think your bracket is setting lower than mine.

me2dumb4college · November 17th, 2011, 08:49 AM

the offset adapter is just a spacer though, i dont see how that would have any impact on the location of the ati idler

Eagle2000GT · November 17th, 2011, 10:07 AM

It's not exactly a spacer. The bolt that goes through the idler pulley could have just replaced the one that goes into the altenator brace. But then the belt would rub. Look at the drawing. The idler pulley bolt is above the one that goes into the altenator. The offset spacer raises the idler pulley about 3/8". If it happened to be put on upside down it would lower the idler pulley about 3/8".

me2dumb4college · November 17th, 2011, 10:52 AM

30 bucks, fml... its on the way

evidentally, the mechanic made a spacer

me2dumb4college · November 17th, 2011, 11:08 AM

Because everyone loves pictures:

Procharger:

ATI Pulley and Water Pump, belt is still barely touching with the new 1.95 ati idler:

We tried a bit larger belt, hoping that the tensioner would fall back enough for belt to clear:

Reverse angle (behind the supercharger):

As you can see, the mechanic made a spacer for the ati idler, since it apparently didn't come with the offset spacer.

Eagle2000GT · November 17th, 2011, 11:10 AM

I hope it fixes your problem. Good luck.

Edit: I do like pictures. I noticed on the installation page I posted that you did need the 1.95" idler pulley.

November 13th, 2011, 11:27 PM	#1
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	Procharger idle pulley and water pump pulley too close? Has anyone else had this problem? My belt is rubbing between the ati idle pulley and the water pump pulley. Should I buy a smaller idle pulley? The tensioner seems to be in the right place...

November 14th, 2011, 09:37 AM	#3
stal94gt I Post Entirely Way Too Much 2003 mustang v6 ;) slow Join Date: May 2010 Location: eglin afb florida Posts: 10,197 iTrader: 2 reviews	That is def not right. Im thinking you have your belt run wrong or you have a under drive pulley on your water pump __________________ bone stock from the factory!

November 14th, 2011, 11:45 AM	#5
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	My first guess is that you have an underdrive waterpump pulley. My installation manual indicates that the 00-04 are the same. The 99 is different. I had the same problem. I couldn't get it to fit because the previous owner put on underdrive pulleys. I had to buy a crank pulley and instead of getting a stock waterpump pulley I bought a Miezere electric water pump. If you only replace the water pump pulley and you leave the underdrive crank pulley then you won't make enough boost. If this is your problem then it has to be replaced. The stock crank pulley is 6.5". What size supercharger pulley are you running? If I could do it all over again instead of paying for a stock crank pulley I would buy a 10% over drive pulley. But if you are running a small supercharger pulley it would make too much boost. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

November 16th, 2011, 07:44 PM	#8
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,191 iTrader: 2 reviews	try to get a part number off the water pump pulley and make sure its not an under drive pulley. __________________ 2003 Mustang gt - usual mods - slowly working on 5.4 swap 2004 srt4 - Stock DD/winter beater Click here for your tuning needs Before asking a gearing related question click THIS link and enjoy all your saved time.

November 16th, 2011, 10:31 PM	#11
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	I can't tell very well from the picture but your entire bracket appears to be lower than mine. I was wondering if you might be missing a part. There is an offset adapter that attaches to the bottom altenator bolt. The bolt that goes through the ProCharger idler pulley screws into the offset adapter. It raises the bracket and idler pulley up away from the belt on the water pump pulley. Are you using that offset adapter? __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage. Last edited by Eagle2000GT; November 16th, 2011 at 10:56 PM.

November 14th, 2011, 09:31 AM	#2
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	Picture worth 1000 words?

November 14th, 2011, 10:09 AM	#4
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	Called procharger... evidentally the idle on a 96-00 is 2.3 while the 01-04 is a 1.95... too bad they didnt tell me this when i called last week and asked the differences between the kits... arg

November 14th, 2011, 11:52 AM	#6
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	Nah the water pump pulley is stock, I believe. I bought an after market crank pulley at 6.5" (stock) since my harmonic balancer was losing its rubber. The idler pulley was just too big... Going to pull it and replace it this week. I'll dyno tune it friday and let you guys know what I run.

November 16th, 2011, 07:26 PM	#7
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	So I need help... I got a smaller idler puller, the 1.95 but the belt is still touching just slightly... I tried a larger belt than recommended to hopefully bring the tensioner back just enough to clear it, but it's still rubbing... my only option seems to be a smaller water pump pulley?? Thoughts??

November 16th, 2011, 07:54 PM	#9
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	528-AA on the top, F4SE-8A on left side

November 16th, 2011, 09:15 PM	#10
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	It's stock, I'm pretty sure

November 16th, 2011, 10:56 PM	#13
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	yea thats how mine's run... it's just a spacer so everything lines up

November 16th, 2011, 10:57 PM	#14
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	It took me forever to scan this but here is a page from my installation manual. The bottom right drawing shows the idler pulley and the offset adapter. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

November 16th, 2011, 11:09 PM	#15
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	Is is possible that you put the offset adapter on upside down? I still think your bracket is setting lower than mine. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

November 17th, 2011, 08:49 AM	#16
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	the offset adapter is just a spacer though, i dont see how that would have any impact on the location of the ati idler

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November 17th, 2011, 10:07 AM	#17
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	It's not exactly a spacer. The bolt that goes through the idler pulley could have just replaced the one that goes into the altenator brace. But then the belt would rub. Look at the drawing. The idler pulley bolt is above the one that goes into the altenator. The offset spacer raises the idler pulley about 3/8". If it happened to be put on upside down it would lower the idler pulley about 3/8". __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

November 17th, 2011, 10:52 AM	#18
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	30 bucks, fml... its on the way evidentally, the mechanic made a spacer

November 17th, 2011, 11:08 AM	#19
me2dumb4college Enthusiast Join Date: Sep 2011 Location: Reston, VA Posts: 866 iTrader: 0 reviews	Because everyone loves pictures: Procharger: ATI Pulley and Water Pump, belt is still barely touching with the new 1.95 ati idler: We tried a bit larger belt, hoping that the tensioner would fall back enough for belt to clear: Reverse angle (behind the supercharger): As you can see, the mechanic made a spacer for the ati idler, since it apparently didn't come with the offset spacer.

November 17th, 2011, 11:10 AM	#20
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	I hope it fixes your problem. Good luck. Edit: I do like pictures. I noticed on the installation page I posted that you did need the 1.95" idler pulley. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

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