I wanted to update this thread for anyone who is doing this also.The 'kit' from the dealer was only for the valves.It had the two valves,two sealing rings,cover gasket and one screw(need two
) for $112Cdn
The diaphragm 'kit' had the diaphragm,cylinder head screw and seal,two cover screws(need six
)and a little tube of locktite for $46Cdn
.The best part of both 'kits' was the instruction sheet(s).The mangled translation to english was confusing at first.For both repairs it says to remove and thoroughly clean the pump.The pump must be removed to replace the diaphragm because you need to pre-load the springs.Measure from the roller bearing to the back of the mounting flange,the roller must be held .5 inch(12.5mm) before removing diaphragm cover.I used a piece of U-channel bolted across the mounting flange and a small block of 1/2" wood between the roller and U-channel.Having a vise to hold the pump is critical for the next part,as well as a third hand.Before you reassemble the cover,theroller has to be spring loaded to 1.02"(26mm).I used the old cylinder head screw and a pair of vise grips to pull the springs towards the front and my wife slipped the 1.02" block of wood in place(two 1/2" pieces plus tape to equal 1.02",god I'm soooo anal).Then I assembled the diaphragm with loctite on the cylinder head screw,bolted the cover on and then slowly released the U-channel.The diaphagm only moved a little when the pressure was released.Then I bolted the pump back onto the engine with the new gasket,$4Cdn
and all was well once again.
I suppose I could have used jobber parts to save some $$ but I mentioned the lack of cooperation at the local parts supplier(unfortunately they are the Altrom supplier here).At least at the dealer he knows what he's talking about and also it's the right part for my car,the pumps changed in mid 1980.I think the valves must be made of Unobtainium to be worth that much,even in metric money