11SECSS

iTrader: (199)

Well finally got around to test fitting my Aster bracket ,after mocking it up found out the belt seems to be hitting the water pump pulley. Heres some pics . Did a search but came up with nothing.

sheikss

iTrader: (11)

You have to use the ls2 vette water pump and move the pulley on it.

conan

iTrader: (5)

Are you still running the LS1 water pump or is that the LS2 ? Yours looks like the LS1.

mcamarols1

iTrader: (9)

What he said

The Alchemist

iTrader: (19)

There's a reason that Bob@Brutespeed sells the bracket with the LS2 waterpump, it's because of this reason. Honestly, the extra flow out of the ls2 pump is worth buying it alone especially when you're making as much hp as you are.

11SECSS

iTrader: (199)

thanks guys I bought this from a member here and didn't know about the LS2 water pump . So I'll pick one up here in the next few days. I have the instructions with it and it didn't say anything about it either.

How hard is it to remove the pulley from my Ls1 WP it looks to be pressed on , hate to mess it up.

11SECSS

iTrader: (199)

Is this the P/N 89018052 for the pump you guys are using ?

stmz28

iTrader: (9)

From brute speed web site

(The standard LS1 F Body water pump and aftermarket water pumps with the "bell shaped" pulley cannot be used with the Aster bracket. This is due to utilizing the standard Procharger eight rib 7.65 crank pulley. A smaller crank pulley could of been used, but would result in having to use a smaller head unit pulley to maintain blower speed. Smaller pulleys lead to less belt wrap, and having to replace the water pump to maintain the larger ProCharger crank pulley is a small price to pay. The GM Corvette 2005 LS2 part number 89018052 water pump (shown above) is the one to use. The pulley needs to be pressed forward 11/32 of an inch, to properly align the accessory belt. We can supply the water pump with the pulley already moved forward, or you can purchase the water pump yourself.This bracket has been in use for several years with the above water pump, and has proven itself to be extremely dependable.)

Bob@BruteSpeed

iTrader: (16)

This how how Chris moves the pulley on the pump. Bob

"When I am pulling the pulleys on the water pumps I start with a large three jaw puller, a six or seven inch puller is best for getting a good grab on the pulley. I place a long pipe between two of the jaws for leverage and to keep the pulley from moving. With a breaker on the socket I do seven or eight quarter turns on the puller then usually have to loosen up and reposition jaws halfway between where they were resting before then tighten up and do another 8 or 9 quarter turns. Usually it breaks loose at that point, but every now and then one is stubborn and I have to reposition the jaws again just to minimize any flex in the pulley. Once it breaks lose it will begin to pull much easier. I pull the pulley forward so that the depth from the front face of the pulley sleeve to the top of the shaft gets to .24”. I usually go carefully here and check the depth regularly as you can’t push the pulley back on if you go too far without risking pushing the shaft out the back side of the pump."