Water Pump question

["Sean Howley" <tsuyoi@xxxx>]

I am in the middle of disassembling all of the stuff to get to the water pump. I was a little nervous about doing this job myself, but in examining the situation (and with the manual as a reference), it actually looks pretty easy. Anyway, here are my questions:

Note: the following #'s and descriptions are listed/labeled in Section 1, Subsection 4, Group 1 in the Parts Manual

In-between the Throttle Valve assy (#10) and the Mix Unit Lower Housing (#9) is the Lower Housing to Throttle Valve assy Gasket (#11). Securing this gasket in place (onto the Mix Unit Lower Housing) are 4 M6 Cap Screws with washers (#12 and #13). When I removed this part, there were additional flat washers in-between the Mix Unit Lower Housing (#9) and the Gasket (#11). The Parts Manual does not show these washers, so I assume that these washers were installed at some time as shim for some unknown (to me) reason. Should I replace anything - like this Gasket? Should I put the "shim" flat washers back in place?

Also, when I removed the Inter Inlet Manifold (#49), the Throttle Valve assy (#10) could be moved a little relative to the Mix Unit Lower Housing (while it was still secured in place). Should this occur and if so, how much? The reason for this question, is that the "shim" flat washers may have allowed the Throttle Valve assy to move more than it should.

Thank you,

Sean Howley
VIN#2345


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