Quote:
Originally Posted by 240Dude
I need to replace the ip diaphragm in my 240d and was wondering if this is just a straight replacement? Do i need to set any kind of preload on it? I know the vacuum leak could also be the poppet valve stuff so i'll replace the o-rings as well.
john
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There is several thread on what to do.
There is a special tool for setting the shims on the Diaphragm but as far as I can remember most people have taken it apart carefully keeping the shims together and getting them back to where they came from.
There is a tubular end on the Diaphragm that has a cross drilled hole in it. inside of that there is some shims and one or 2 springs. You need to get those back to where they came from.
There is also shims other places but they are more obvious.
Best to find the threads and or take advice from some one who has done it before.