WATER PUMP PULLY SPACING????????

Posted By: hemi-itis

WATER PUMP PULLY SPACING???????? - 03/19/11 03:35 PM

Need to move the groove

Closer to the water pump.Right now there seems to be a little over an inch between the back of the pulley and the head of the water pump bolts.Are there available choices in "backspace" for w/p pulleys????

Attached picture 6537933-Assembly16.jpg

Posted By: RapidRobert

Re: WATER PUMP PULLY SPACING???????? - 03/19/11 03:55 PM

Quote:

Are there available choices in "backspace" for w/p pulleys????

yes there's several diff depths of pulleys but 1st eyeball things & see if pressing the "cross" rearward will take care of it (w no interference anywhere after pressing it) & if so support the rear of the shaft as you move the cross further down in your shop press & for reference note your crank/wp pulley ratio as overdriven cools better esp if you add the anti cav plate (easy/cheap/works well) EDIT I'm assuming the crank and alt are in line just need the WP to line up w them

Posted By: JohnRR

Re: WATER PUMP PULLY SPACING???????? - 03/19/11 03:58 PM

You aren't going to find pulleys in increments from a company , you have a few pulley choices , B/RB , 69 up hemi , B/RB A/C and small block. The B/RB sits real close to the pump. i assume spacing the bottom pulley out is not an option ?

Post up a picture of the pulley it self , do you know the pulley application.

Posted By: stumpy

Re: WATER PUMP PULLY SPACING???????? - 03/19/11 04:41 PM

From the angle of the belt it looks like it should go on the foward part of the pulley. Is that an optical illusion or not?

Posted By: ahy

Re: WATER PUMP PULLY SPACING???????? - 03/19/11 07:26 PM

Bouchillon stocks all the standard pulleys made in various backspacing. They can help you find the closest possible to what you need.

Posted By: Pacnorthcuda

Re: WATER PUMP PULLY SPACING???????? - 03/19/11 07:38 PM

Quote:

From the angle of the belt it looks like it should go on the foward part of the pulley. Is that an optical illusion or not?

What forward part? Pretty sure that is a V-belt

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/20/11 12:47 AM

Quote:

Quote:

Are there available choices in "backspace" for w/p pulleys????

yes there's several diff depths of pulleys but 1st eyeball things & see if pressing the "cross" rearward will take care of it (w no interference anywhere after pressing it) & if so support the rear of the shaft as you move the cross further down in your shop press & for reference note your crank/wp pulley ratio as overdriven cools better esp if you add the anti cav plate (easy/cheap/works well) EDIT I'm assuming the crank and alt are in line just need the WP to line up w them

I did not know the "cross" is just pressed on the shaft

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/20/11 12:55 AM

Quote:

You aren't going to find pulleys in increments from a company , you have a few pulley choices , B/RB , 69 up hemi , B/RB A/C and small block. The B/RB sits real close to the pump. i assume spacing the bottom pulley out is not an option ?

Post up a picture of the pulley it self , do you know the pulley application.

You jarred my old memory,went through a few part bins and look what I found

,,,but it seems to be a larger diameter pulley and might be touching the crank pulley.The back of THIS pulley almost touches the 4 waterpump to housing bolts.

Attached picture 6538798-GARAGE013.jpg

Posted By: RapidRobert

Re: WATER PUMP PULLY SPACING???????? - 03/20/11 03:30 AM

Does the pulley in the last pic (that's nearly touching the bolts) line up w the alt and the crank? If so only need a smaller dia wp pulley OR a smaller dia crank pulley (of the same depth). One of the two is made in a smaller dia (OE)as there's alot of em out there. If the pulley in the pic b 4 that has a dia that will work yes you can easily press the cross in further just mockup/eyeball ahead of time & see if the inside of the pulley bell will clear if you do press the cross down as far as it needs to b. A smaller WP one will cool better and a larger crank one will also and (the bigger crank one) will spin the alt faster (always needed

) and w the depths lined up the prob is as you're seeing, the interference between the two if one or both is too large. Best is large crank/small wp pulleys

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/20/11 04:13 AM

The object of this project is to reduce the amount of spacer required on the crank hub.The new blower hub & timing ring purchased is 1.5 inches,the hub that came off is 3 inches.That would be a total of 3 inches of spacer needed to align the crank drive/blower pulley.I not diggin' that much,puts too much stress on the crank snout.Soooooo,I have the w/p pulley as far back as possible and can reduce the spacer on crank,just need to get a shorter blower snout.Might still return this hub & ring.

Posted By: JohnRR

Re: WATER PUMP PULLY SPACING???????? - 03/20/11 06:16 AM

Quote:

Quote:

Quote:

Are there available choices in "backspace" for w/p pulleys????

yes there's several diff depths of pulleys but 1st eyeball things & see if pressing the "cross" rearward will take care of it (w no interference anywhere after pressing it) & if so support the rear of the shaft as you move the cross further down in your shop press & for reference note your crank/wp pulley ratio as overdriven cools better esp if you add the anti cav plate (easy/cheap/works well) EDIT I'm assuming the crank and alt are in line just need the WP to line up w them

I did not know the "cross" is just pressed on the shaft

The one in the first picture is not the standard B RB pulley , looks somewhat like a smallblock pulley ... or the 69 - 71 hemi ??? ... , could be an old , from your cars era , pulley though . Your second picture is the newer std B/RB pulley, everything from 66 up , 66-68 hemi , used that second pulley.

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/20/11 04:39 PM

After I found my selection of pulleys,there were a few that went up against the w/p bolts.So the close pully must be as you said John.Well at least I have the proper depth in the event I need to obtain another pulley.
Thank you guys for the replies!!

Posted By: 68GTS383

Re: WATER PUMP PULLY SPACING???????? - 03/20/11 04:47 PM

Have you thought about machining the engine side of the water pump? I know guys that have run mounting plates on the front of their engines and corrected alignment by machining the water pump.

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/27/11 02:05 AM

First,let me thank RapidRobert for being generous enough to offer me a smaller diameter pulley,But I received an angry phone call from my very dear friend Stephen or as FULLMETELJACKET calls him "Special K"

Anyway,Steve wanted to know why I didn't just call him in the 1st place

he has the pulley I need and will bring it to the LONG ISLAND MOPARS get together tomorrow at Hot Rod Burger King in Bethpage.I will keep ya'll posted w/pic's of course

LI MOPARS http://mysite.verizon.net/vzes9hbq/longislandmopars/index.html

Attached picture 6551410-IMG_1747.JPG

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/27/11 02:11 AM

Quote:

Have you thought about machining the engine side of the water pump? I know guys that have run mounting plates on the front of their engines and corrected alignment by machining the water pump.

Yes Ashley.There is .150 to .175 to be found with a quick shave.I will wait untill I obtain a shorter blower snout and ATI crank damper before the milling if need be.Thanks for that suggestion

Now should I just clean the aluminum waterpump,,,,,or should I stick it in the beadblaster cabinet to spruce it up.I need to do the alternator too

Posted By: Cab_Burge

Re: WATER PUMP PULLY SPACING???????? - 03/27/11 07:55 AM

Eagle Cast alumiinum wheel cleaner really cleans cast aluminum, follow the directions for the best results. Some parts need two or three cleanings to get them looking like new

Posted By: therocks

Re: WATER PUMP PULLY SPACING???????? - 03/27/11 12:46 PM

If you want more clearance to the wp bolts get some button head allens for it.That what March uses with the underdrive pulley sets.Rocky

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/27/11 02:04 PM

Few more great suggestions

Posted By: RapidRobert

Re: WATER PUMP PULLY SPACING???????? - 03/27/11 02:23 PM

Quote:

Now should I just clean the aluminum waterpump,,,,,or should I stick it in the beadblaster cabinet to spruce it up.I need to do the alternator too

You dont want beads inside the housing as they'll lodge in crevices & cant b blown out w air & then release when it gets hot & lodge in rad tubes. Cover the housing openings ten ways from sunday & bolt on the pump & cover the pump seal area under the cross. If the alt halves are totally stripped w no place for beads to hide it'd work good. Glassbeading has it's place but on the outside not inside

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/27/11 03:00 PM

I hear ya on that Rob,I was gunna try cleaning it with some aluminum cleaner with a pulley in place to protect the front seal.OH,also,the "star" on my pump is rather thick and has no room to be moved down

If I blast it,the pulley will be on and ANY openings would be stuffed & covered with the best duct tape.

Posted By: hemi-itis

Re: WATER PUMP PULLY SPACING???????? - 03/30/11 12:39 PM

Quote:

If you want more clearance to the wp bolts get some button head allens for it.That what March uses with the underdrive pulley sets.Rocky

Rocky,I picked up a set of buttonheads.So thanks for blowin' the dust around in my bobblehead