RED-Z06 2,221 #26 Posted December 3, 2022 Tell yall a weird one, i put a new plastic one off ebay on my magnum and it worked poorly, kept failing to produce volume...bypassed it and did a vane type wired to the acc pin on my key...it worked about 4 hours and something melted, plastic was hanging out the outlet into the line. Tractor was like a mile from home...of course...i hooked the plastic pump back up, hoping...and it cranked up, has worked fine ever since, this was in March of this year. Biggest problem I have with plastics is the stupid snap in elbows leaking 4 Share this post Link to post Share on other sites
Rick3478 428 #27 Posted December 3, 2022 On 11/29/2022 at 2:28 PM, pacer said: Generally called "pot metal" one tech name is/was? 'Zamac' Had a lot of tin in it I believe..... ZAMAK = acronym for Zinc Aluminum Magnesium and Kupfer, from german toy makers IIRC. 1 Share this post Link to post Share on other sites
Rick3478 428 #28 Posted December 3, 2022 2 hours ago, RED-Z06 said: Biggest problem I have with plastics is the stupid snap in elbows leaking Little bit of motor oil on the O-Rings when assembling helps keep the dry plastic from chafing them, also works on fuel tank grommets. 3 Share this post Link to post Share on other sites
Rick3478 428 #29 Posted December 3, 2022 On 11/29/2022 at 11:51 AM, Bill D said: I started using vacuum pumps awhile ago. I made a plate to mount it to the engine in place of the stock mechanical pump. Looks like you have a couple vacuum (?) lines going somewhere behind the magneto plate. What's up with those? Share this post Link to post Share on other sites
Bill D 1,920 #30 Posted December 3, 2022 2 hours ago, Rick3478 said: Looks like you have a couple vacuum (?) lines going somewhere behind the magneto plate. What's up with those? That's just the way I ran the vacuum line from the fitting in the mounting plate to pulse port on the pump. The line coming in the bottom right side of the pump is the intake side. The line on the top left side of the pump is the outlet to the carburetor. Share this post Link to post Share on other sites
peter lena 8,625 #31 Posted July 9 @ ahs been using CARBOLE ELECTRIC PUMPS FOR YEARS , self monitoring 2-3.5 psi like@ d 953 nut , picture , also added a single green LED light, at dash area , to tell me what's going on , $ low 20,s on the net , very quiet / solid , pete Share this post Link to post Share on other sites
