2 stage fuel pump question

[kend301]

I posted this in the Chrysler / Force forum , Thought it may not be a bad idea to post here as well as I have a Sport Jet merc engine by force .
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I have a 1994 Sport Jet 90 by merc / force , I went to put a new diaphram in the fuel pump and in the first stage there is a spring and washer assy not shown in the shop manual , the way it mounts it is all but impossiable to get the diaphram flat with the spring in , Looks like I will tear the new Diaphram by the bolt holes. Do I need this spring / washer ? It is not shown or mentioned in the factory manual but is on the parts diagram on boats.net

http://www.boats.net/parts/search/Me...BLY/parts.html

I am talking about part # 12 and # 7

 

[Faztbullet]

Re: 2 stage fuel pump question

Yes you need them and it will not tear the holes unless you get rough with it.