Bucks 31 #1 Posted May 30, 2022 I have a raider 9 with tecumseh hh100 engine and i seem to have a bad fuel pump.Are the old mechanical pumps repairable? and are there replacement pumps for this engine? 1 Share this post Link to post Share on other sites
ebinmaine 67,484 #2 Posted May 30, 2022 I haven't tried to rebuild a Tecumseh pump yet. It's possible Lincoln at A to Z Tractor in PA may have one. There are a few folks changing over to using Facet electric pumps. That could be a good alternative. 6 Share this post Link to post Share on other sites
Achto 27,571 #4 Posted May 30, 2022 Changing to an electric pump would be a great option. 5 Share this post Link to post Share on other sites
953 nut 55,224 #5 Posted May 30, 2022 an electric pump is the way to go. Quick starts and no more concern about the diaphragm leaking gas into the engine oil. 4 2 Share this post Link to post Share on other sites
Bucks 31 #6 Posted June 2, 2022 appreciate the advice thanks 3 Share this post Link to post Share on other sites
Bucks 31 #7 Posted June 8, 2022 Thanks guys I ordered a in line fuel pump from a-z tractor. I left the existing pump in place rather than blank it off . I removed the existing 90 degree gas hose fittings and replaced with same thread plugs on the pump. Easier than fabricating a blank if I removed the pump altogether. thanks for your help and advice. 1 2 Share this post Link to post Share on other sites
Liberty work shop 9 #8 Posted June 10, 2022 My 520H must have had fuel pump issues because it had an electric on it when I got it ... Works great and I find that if I turn the key on and let the pump run until it brings up fuel pressure ( about four seconds before it shuts off ) , I barely have to choke it at all ... 4 1 Share this post Link to post Share on other sites
Bucks 31 #9 Posted June 10, 2022 my new problem is where to mount the new electric pump. any suggestions? 1 Share this post Link to post Share on other sites
953 nut 55,224 #10 Posted June 11, 2022 Be sure to mount the electric pump lower than the bottom of the fuel tank, they are better pushers than suckers. 6 Share this post Link to post Share on other sites
Bucks 31 #11 Posted June 12, 2022 made some brackets and was able to mount new electric fuel pump below gas tank and just over the starter. its all under the hood and looks ok . now have gas to carb but it still won't start. thinking about replacing carb. how can you tell if its a tecumseh carb or another manufacturer. the mechanical fuel pump had a square body that looked similar to kohler. everything on the engine looks original. my tecumseh engine model is HH100-115095B. Its on my Raider 9. Very hard tracking down parts for this. Jacks small engine & toro parts came up empty. Help! thanks in advance. 1 Share this post Link to post Share on other sites
ebinmaine 67,484 #12 Posted June 12, 2022 16 minutes ago, Bucks said: made some brackets and was able to mount new electric fuel pump below gas tank and just over the starter. its all under the hood and looks ok . now have gas to carb but it still won't start. thinking about replacing carb. how can you tell if its a tecumseh carb or another manufacturer. the mechanical fuel pump had a square body that looked similar to kohler. everything on the engine looks original. my tecumseh engine model is HH100-115095B. Its on my Raider 9. Very hard tracking down parts for this. Jacks small engine & toro parts came up empty. Help! thanks in advance. Those carbs can be rebuilt. Carefully and thoroughly. Remove the fuel bowl and check for obvious immediate blockages. I highly recommend using an OE carb if at all possible. 2 1 Share this post Link to post Share on other sites
Bucks 31 #13 Posted June 13, 2022 i removed bowl & cleaned used fine wire and opened port . i am getting gas to the bowl also think i wired pump wrong will try again later do you know where to get rebuild kits for this carb? tractor was dormant for thirty plus years I'm assuming it needs one. 1 Share this post Link to post Share on other sites
Blasterdad 2,692 #14 Posted June 13, 2022 (edited) 1 hour ago, Bucks said: i removed bowl & cleaned used fine wire and opened port . i am getting gas to the bowl also think i wired pump wrong will try again later do you know where to get rebuild kits for this carb? tractor was dormant for thirty plus years I'm assuming it needs one. Fleabay has them, get an OEM one though, the China ones are junk. Have you checked to see if you're getting spark? Edited June 13, 2022 by Blasterdad 1 Share this post Link to post Share on other sites
Bucks 31 #15 Posted June 13, 2022 I agree to stay away from the junk makers! planned to check spark but now have a new problem .engine not cranking at all. Im taking a break . heat & humidity are back with a vengeance. thanks for your advice and ill get back to ya when i hopefully make some progress. still determined to resurrect this old girl but little depressed at the moment. 2 Share this post Link to post Share on other sites
ebinmaine 67,484 #16 Posted June 13, 2022 1 hour ago, Bucks said: I agree to stay away from the junk makers! planned to check spark but now have a new problem .engine not cranking at all. Im taking a break . heat & humidity are back with a vengeance. thanks for your advice and ill get back to ya when i hopefully make some progress. still determined to resurrect this old girl but little depressed at the moment. No worries. Just get a schematic diagram and start poking around. Remember... It's a DC system. No ground or bad connection anywhere and you have no circuit. 2 Share this post Link to post Share on other sites
Bucks 31 #17 Posted June 14, 2022 I believe I have the red fever, will dig into further thanks 2 Share this post Link to post Share on other sites
ebinmaine 67,484 #18 Posted June 14, 2022 9 minutes ago, Bucks said: the red fever You'll find on this site in particular there's quite a few who have it. Fortunately it's not curable. I started out with 1 Horse about 5 years ago. Trina got one shortly after. We now have 5 (her 3, me 2) that run n drive. 1 more soon. 2 projects left after that. 2 Share this post Link to post Share on other sites
rjg854 11,361 #19 Posted June 15, 2022 14 hours ago, ebinmaine said: 1 more soon. 1 3 Share this post Link to post Share on other sites
ebinmaine 67,484 #20 Posted June 15, 2022 @rjg854 Well. I mean. You know in a slightly longer scale than some people might use.... I think it's safe to say that when I use the word SOON it might be on a slightly different setting of urgency and speed than some others. 😂 I've got that tecumsehorse partially disassembled and waiting for service. First things first though.... I have to get the new garage site emptied out before I can go back to messing with tractors much. 3 Share this post Link to post Share on other sites
rjg854 11,361 #21 Posted June 15, 2022 I was thinking a project called Collases or some such thing. 1 2 Share this post Link to post Share on other sites
Bucks 31 #22 Posted June 17, 2022 yep starter still good key switch bad ordered new one. plugging along. 2 Share this post Link to post Share on other sites
ebinmaine 67,484 #23 Posted June 17, 2022 1 hour ago, Bucks said: yep starter still good key switch bad ordered new one. plugging along. Did you find the letters stamped into the back near the terminals? There are 2 predominant ignition switch types. 1 Share this post Link to post Share on other sites
Bucks 31 #24 Posted June 18, 2022 yep starter still good key switch bad ordered new one. plugging along. yeah but some un readable. body of switch and terminals somewhat corroded. i have the original schematic thanks to the forum. switch should be a 3 post terminal the one on the unit had 2 screw terminals and 3 spade terminals. original part #101482 is still available. positions on that switch which i ordered are S M B. 2 Share this post Link to post Share on other sites
sparkie333 265 #25 Posted June 18, 2022 4 hours ago, Bucks said: switch should be a 3 post terminal the one on the unit had 2 screw terminals and 3 spade terminals. original part #101482 is still available. positions on that switch which i ordered are S M B. Hi--It is very important to use the correct switch-------I have a C160 Automatic with a Kohler 16HP engine. Good Luck 2 Share this post Link to post Share on other sites
