Kill No Cone

iTrader: (6)

Hello Folks,
I am putting an S4 engine in
To my first gen and I have a question for you. Do you use one very thin washer on the stud furthest away from the water passages between the block and water hosing? A couple of my first gen cars have this washer, which help to stop leaks between the block and the steel water housing, but I do not know if you use this with an aluminum housing.
Thanks ~ JEB

Aaron Cake

iTrader: (1)

The thin washers (there are two of them) go on the two studs that do not have a gasket. They should always be used.

Kill No Cone

iTrader: (6)

Thanks Aaron,
On your recomendation I went an ordered them from Mazda to make sure I installed the right ones.
Thanks!

Digi7ech

iTrader: (1)

What exactly are they for? Just to make the water pump level and flush?

I put them on mine but was confused as to why.

WAYNE88N/A

I guess they make up for the thickness of the gasket, so you won't warp the housing when you torque it down...

Kill No Cone

iTrader: (6)

Ya, they keep keep the water housing flush so that it does not leak on the other side (opposite of the washers).

Kill No Cone

iTrader: (6)

Well, I just got the water housing washers today and I thought I would post the thickness of them for anyone needing toi make their own - .021 inch.

silverrotor

iTrader: (1)

Although the question In hand was asked for s4 Engines, It shouldn't be misunderstood that s5 Water Pumps need the Shims...b'c they don't. I learned the hard way.