sqrlgtr 767 #1 Posted Monday at 09:51 PM Look what came in mail today. Wasn’t expecting it this quick. + 1 for then and know auto. Couple questions for those that have experience rebuilding these pumps. 1. Best way to get valves out of body? One just fell out hadnt tried getting other one out yet… 2. What is the little black dots that came in kit and what is the gasket with the 2 holes in it go too? I know the one that goes between pump and block. 3. Best way to get valves apart once I get both out of pump body lol???? Share this post Link to post Share on other sites
rjg854 12,416 #2 Posted Monday at 10:01 PM I used the right sized socket to drive them out and in, helps keep them square. 1 1 Share this post Link to post Share on other sites
sqrlgtr 767 #3 Posted Monday at 10:33 PM @rjg854hello friend, I can see driving them in but I didn't think they could be drove out. Keep in mind I've not looked at pump in a day or two and don't have it in front of me at the moment. Now that I think about it, seems like they were indentions in pump for that purpose. I believe I'm getting a better mental picture of how they are put together now. I hope it's not rocket science, seeing how I'm, a brain surgeon..... Share this post Link to post Share on other sites
953 nut 61,318 #4 Posted Monday at 11:42 PM Then and now kits contain the valves (small black dots) and springs for the old style pump as well as the newer style. 3 1 1 Share this post Link to post Share on other sites
sqrlgtr 767 #5 Posted Monday at 11:50 PM @953 nut, thank you for clearing that up for me. 1 1 Share this post Link to post Share on other sites
WHX?? 52,416 #6 Posted Tuesday at 01:13 AM Yes don't throw those out they can be used on a lever type pump. 5 Share this post Link to post Share on other sites
wallfish 18,519 #7 Posted Tuesday at 01:50 AM pick tool 1 Share this post Link to post Share on other sites
sqrlgtr 767 #8 Posted Tuesday at 08:19 AM @wallfish the pick was first thing I grabbed but the one side want move. tried my favorite needle nose also. The ol hammer and socket trick is next on list as rjg854 suggested earlier. Share this post Link to post Share on other sites
sqrlgtr 767 #9 Posted Tuesday at 11:13 AM Does anyone have an exploded view of the type of pump that's in picture? The valve in the right side of pic just kinda fell out when I separated pump and not sure if I have the right side facing out? Share this post Link to post Share on other sites
953 nut 61,318 #10 Posted Tuesday at 11:43 AM The check valves need to be placed with one in the open end up position and one in the open end down position. As the diaphragm moves down the inlet valve will open and the outlet valve will close, as it moves up the outlet will open and the inlet will close. When properly installed there should be little or no resistance to air flow from the inlet side if slight air pressure is applied. 1 Share this post Link to post Share on other sites
sqrlgtr 767 #11 Posted Tuesday at 11:51 AM @953 nut thank you I haven't made back to fuel pump yet but got to looking at my picture and got to thinking that I had to have reversed it when I laid it back in there for pic. Thanks a bunch for your help. 1 Share this post Link to post Share on other sites
Handy Don 14,414 #12 Posted Tuesday at 03:19 PM The pumps I’ve had open seemed symmetric as far as the ports and valves and I’ve seen the inlet/outlet configuration in both ways on different WH engines! Be sure to keep track so that when you reassemble and mount it, the ports are at your desired ends, i.e. inlet toward fuel tank line and outlet toward carb line! 1 1 Share this post Link to post Share on other sites
sqrlgtr 767 #13 Posted Tuesday at 05:29 PM All buttoned up and ready to roll. Before and after pics. Of course assembled bass ackwards on first attempt @Handy Don 1 4 Share this post Link to post Share on other sites
sqrlgtr 767 #14 Posted Tuesday at 05:32 PM Almost forgot, big thanks for everybody's help....... 1 1 Share this post Link to post Share on other sites
Handy Don 14,414 #15 Posted Tuesday at 05:36 PM 4 minutes ago, sqrlgtr said: assembled bass ackwards on first attempt Probably all but unanimous who among members here has done something like that--more than once. Looks good! 1 1 1 Share this post Link to post Share on other sites
953 nut 61,318 #16 Posted Tuesday at 10:53 PM 5 hours ago, sqrlgtr said: Of course assembled bass ackwards on first attempt In the case of these fuel pumps the inlet could become the outlet and visa versa and it would work. Share this post Link to post Share on other sites
Retired Wrencher 5,973 #17 Posted Thursday at 10:27 AM Thanks for the post of this vacuum pump. Just my if you find find you don’t like this pump because being vacuum, you can always switch to an electric pump. I put one on my 856 and I like it a lot starts right up.I have the name of the company if you would like it. 1 Share this post Link to post Share on other sites
702854boy 126 #18 Posted 15 hours ago On 10/2/2025 at 6:27 AM, Retired Wrencher said: Thanks for the post of this vacuum pump. Just my if you find find you don’t like this pump because being vacuum, you can always switch to an electric pump. I put one on my 856 and I like it a lot starts right up.I have the name of the company if you would like it. Do you still have the vacum pump? Share this post Link to post Share on other sites
