JC 1965 1,532 #1 Posted August 14, 2011 I took apart my neighbors fuel pump off his old K321 to replace the diaphragm with a diaphragm out of another fuel pump. His pump has the primer lever, I had never taken one of these apart before. I just assumed the diaphragms were the same but they're not. I couldn't get the diaphragm out of his pump. When I tried to turn the diaphragm 1/4 turn and lift out it didn't work. Then I noticed the end of the diaphragm shaft on his pump is round and just turns down inside the pump housing. Soooooo has any one else had this problem? Will this pump have to be scrapped? I've never seen any rebuild kits with that type of diaphragm shaft. Any help appreciated!! :D Share this post Link to post Share on other sites
smoreau 658 #2 Posted August 14, 2011 I have seen them on generator engines and pump engines. I have one and thought it would be nice on my brothers K301 when I rebuilt it. it leaked . so the regular style was put on, so I have never tries to repair it yet. Share this post Link to post Share on other sites
Martin 2,133 #3 Posted August 14, 2011 i have one on the 1054. was leaking where the shaft/lever is. never pulled it apart as it was working well, only thing i did was remove the lever/shaft from the body and replace the seals they have on the ends. still weeps a little, but that shaft was a pain in the butt to get situated in there. its like two different shafts together working the same in one direction (pump)and independently the other (suction).- or is that the other way around . the lever is nice but i would rather just have a better sealed shaft on a standard pump. Share this post Link to post Share on other sites
JC 1965 1,532 #4 Posted August 14, 2011 :ROTF: Thanks for the replies Scott and Martin, Now I know it's not just my imination. I'm going to tell my neighbor he needs to purchase a new fuel pump. :D Share this post Link to post Share on other sites