CHAOS REIGNS

i've got another thread going on where to get a pulley

but that has me thinking


what size pulley's should be running my power steering pump and my raw water pump?

my motor runs cold now -- i'm wondering if my power steering and raw water are backwards -- and the smaller one should be running the raw water -- not the power steering ??

CHAOS REIGNS

ttt

blown formula

The raw water pump pulley is smaller than the power steering pump normally. Some Merc applications though, such as the 900SC may use a larger water pulley to reduce pressure & volume.
One thing that confuses me is: the power steering pulley is pressed on & the raw water pump is bolted on, how could they be switched???

CHAOS REIGNS

i'm strictly referring to the crank shaft pulley -- each individual piece -- raw water, alternator and power steering pump are fine.


however my crank shaft pulley came flying off the other day and is tore up. I'm not sure if my engine guy had the right one on there or not.

The Crankshaft pulley that was on mine was a 3 groove 2 piece pulley. The inner two grooves are the same size and larger than the outer single groove. The outer single groove actually sits inside the 2 groove "dish" of the crankshaft pulley.

I've got a new pulley on the way -- but its grooves are setup so the inside one is big -- middle one is small and outside one is big -- hence "reversing" the drive size of the pulley for both the power steering and raw water pump.

perhaps a few pic's would help

CHAOS REIGNS

#2

CHAOS REIGNS

#3

CHAOS REIGNS

sounds as if my engine dude put the wrong crank pulley on

and i should be running a standard 3 groove v-belt crank pulley


make sense?

blown formula

Wow!! You are correct. The correct pulley has 3 grooves. The smaller grove for the sea pump is in the middle. The two other are the same size & larger. The outer one is for the power steering pump, the inner for the alternator.

Do you have one? If not, I have several spares. Let me know- just pay the shipping expense & it's yours.
George

CHAOS REIGNS

i've got one on the way -- should be here tomorrow -- but if not

i will take you up on your offer!!!!!


thanks!!!