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Author Topic:   SBC Pulley Alignment
BanditRacingTX
Member
posted October 14, 2004 06:50 AM
Help! I have a sbc 350ci in a limited late model. I have replace the long water pump with a short Moroso aluminum pump. My power steering is a KSE block mount and the pullies are SCAT 30 % reduction billet aluminum. I just added a new CAT 6.25 inch fluid dampner. NOW, my problem is the crank pulley does not, will not or just palin won't line up with the water pump and power steering pump. The water pump and power steering pump pullies line up fine. The crank pulley is about 1/4 inch too short. I called CAT manufacturing and their response was "Well Boss, I don't know what to tell you." All of the items listed were purchased new from Smileys Racing. Any help will be accepted graciously and gratefully accepted. My email is BanditRacingTX@cs.com

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marshalr
Member
posted October 14, 2004 07:15 AM
2 options i can think of :

1. You can buy an adapter kit to move your short pump to the long pump position.

2. You can also buy shims for your pulleys.

I use them all the time.
I lay a piece of 1/2" angle in my pulley grooves to align them.
The shims are a pain unless you glue them to the pulley once you have determined the right placement.


autoshop
Member
posted October 14, 2004 10:39 AM
i wouldnt shim the damper. It is a press fit and needs to be fully seated.

You can buy spacers for the crank pulley if you need to move it out a little bit. Or if you are real good with metal you could take a piece of aluminum and make your own. Just make it big enougn around so that the pulley has something to rest against and keep it round and balanced so it doesnt tear up the internals.

dirtbuster
Member
posted October 14, 2004 11:28 AM
...about forgot you are using matched pulleys for the short pump setup right?


Dixon
Member
posted October 14, 2004 01:43 PM
If you go with a crank pulley shim, you need to be sure the bolt is long enough. ARP makes a longer bolt, but it's about $25. I've had to do that before, we just made our own.


ratracer10
Member
posted October 14, 2004 02:31 PM
If you go with spacer on lower pulley, you need to make sure it is still centered on ballancer. I make a shim from old Moroso cast aluminum pulleys.

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2nd2none
Member
posted October 15, 2004 09:46 PM
I've got an awesome crank pully spacer about 1/4" thick a buddy made me on his lathe. PM me your addy and i'll send it to ya. It even has a groove to align itself into the dampner.


Istock66
unregistered
posted October 17, 2004 07:32 PM           
They sell lower pulley spacers. 1\8 and 1\16.

It took one of each to line mine up right, they are easy to put on just slide all the bolts in the pulley with the spacers behind them and install it like normal.

got mine from Kosiski

BanditRacingTX
Member
posted October 17, 2004 07:36 PM
quote:
Originally posted by marshalr:
2 options i can think of :

1. You can buy an adapter kit to move your short pump to the long pump position.

2. You can also buy shims for your pulleys.

I use them all the time.
I lay a piece of 1/2" angle in my pulley grooves to align them.
The shims are a pain unless you glue them to the pulley once you have determined the right placement.


I have some Moroso water pump shims, but haven't be able to find shims for the crank pulley. Do you know of anyone who sells them. Also what type of adhesive do you use to glue the shims to the pulley

BanditRacingTX
Member
posted October 17, 2004 07:47 PM
Marshalr, what type of glue do you use to glue the shims to the pulley?

Dirtbuster, do you know who sells the shims for the crank pulleys, I have't been able to locate anyone who sells them.

Ratracer10, not sure about the corvette pump, but the guy at Smileys said he sells the aluminum water pump and the billet reduction pulley sets all the time and has never had any problems or complainants from anyone.

Todchester, I purchased some plate aluminum and I am planning on trying to make a shim using my crank pulley for the pattern. First drill out all of the bolt holes on my drill press the cut the plate aluminum to near the size of the crank pulley and then finish it by grinding it down to the same diameter as the pulley.

2nd2none, I sent you a PM.

I really want to thank everyone for your time to respond to my problem.

marshalr
Member
posted October 18, 2004 09:25 AM
Sorry for the delay, i get on this board at work.
I use rtv silicone or contact cement to bond the shims. I just use it to hold the shims while i get it bolted up.


dirtbuster
Member
posted October 18, 2004 11:23 AM
Try ths is link and scroll to the bottom of the page. http://www.evanscooling.com/catalog/C_plys1.htm