pvoth

the one took off has a 2.5" ish impeller the new one has 3" ish impeller....
what gives....differance in the block??

BTW when the newer one instnalled it dont turn

michaelmount123

The larger impeller is for a 3L block. The 2.5 uses the smaller impeller.

pvoth

those bastards..... any one want a 3L water pump????

pvoth

OH Hey also do i have to have the "belt deflector" and i have a pump that will fit but dont have it does it really matter??

John_AZ

You may be asking for trouble if you put it on your '84 944.

You have been a 928 owner for years. You know the misery of "Do Overs"

You can use the non turbo WP on the '84 944
You need to get or use the 32mm cam idler pulley--you may have the 46mm idle pulley now.

The non turbo WP might not have the updated HD water pump bearing----The reason for the change to the updated turbo water pump.

How old is the non turbo pump you might use? Did the PO have it and not use it himself?

IMO not worth it just to use an old pump.

John

pvoth

i do know not to use a used pump ....its new as is the other one for the 3.0L....i seem to be water pump rich....just not one that exactly matches the one i took off.