Ed Kennell 47,425 #1 Posted 9 hours ago The 5 HP B&S on my Trac Vac was becoming hard starting and needing choke. So I started to remove the carb and found it was loose from the block which is probably the problem. The two bolts were loose about 3 turns. While I was in there, I decided to remove it and do a cleaning. I could use a manual and pictures of the throttle and governor linkage to help me do the reassembly. M/N 135232 Type 1036 E1 Code 930813 YA @gwest_ca TIA Garry. Share this post Link to post Share on other sites
Handy Don 17,506 #2 Posted 9 hours ago 18 minutes ago, Ed Kennell said: The two bolts were loose about 3 turns. Ouch! Can’t help on images, sorry. 1 Share this post Link to post Share on other sites
squonk 48,170 #3 Posted 9 hours ago This reminds me of the neighbor lady who borrowed my Tecky powered push mower years ago. She mowed part of her yard in the morning. After lunch she comes over and says it won't start, I go over and the carb is laying on the deck. I reinstall it and she mows some more. Next day she's back and ir won't start again. I go over and the carb is on. I pull the cord and the whole engine spins around! 3 bolts had fallen out. 1 2 1 Share this post Link to post Share on other sites
ri702bill 13,105 #4 Posted 7 hours ago 2 hours ago, Ed Kennell said: I could use a manual and pictures of the throttle and governor linkage to help me do the reassembly. The Horse is already out of the Barn, but... And THAT is exactly why we need to pull out the Cell Phone & click off a couple of pictures at different angles prior to disassembly. Priceless in that situation. Cell phone pix are better than the digital camera in that you can zoom up & around for fine detail. 1 Share this post Link to post Share on other sites
pfrederi 21,201 #5 Posted 6 hours ago 5 hp BS flat head, but it is on a generator the orange thumb screw is the speed adjustment... Is yours an OHV?? I have an OHV some where if that is what you need 2 1 Share this post Link to post Share on other sites
Ed Kennell 47,425 #6 Posted 6 hours ago 2 minutes ago, pfrederi said: 5 hp BS flat head, Is yours an OHV?? Flat head...Thanks Paul. 58 minutes ago, ri702bill said: we need to pull out the Cell Phone & click off a couple of pictures I tried, but things are so tight I could not see the gov. linkage till I removed the fuel tank. I may have to pull the engine to reassemble the linkage from the bottom. 3 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 12,491 #7 Posted 6 hours ago Often there is info in the B&S operator manual also if you can find one. 1 Share this post Link to post Share on other sites
pfrederi 21,201 #8 Posted 6 hours ago Best I can do on the bottom side. There is nu way to really see anything with out pulling the tank and carb Sorry 1 1 Share this post Link to post Share on other sites
ri702bill 13,105 #9 Posted 6 hours ago (edited) The only B&S engines I have are the "Classic" 3-1/2 HP with the oldy-but-goodie PulseJet carb on top of the tank... and the plastic wind vane governor. Edited 6 hours ago by ri702bill 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 12,491 #10 Posted 6 hours ago Found an operator manual that has carb info 1 Share this post Link to post Share on other sites
C-85 826 #11 Posted 5 hours ago I had the same issue of the carb bolts getting loose on the 5hp B&S on our wood splitter. This turned into more of a disaster, I tried taking off its muffler so I could have more access and both of them broke off. After I drilled out the broken off bolts and Helicoiled new threads, I used some Allen head bolts to remount the carb. I cut off an Allen wrench so it would reach the bolts. That allowed me to get those carb bolts very tight! Then I used a wire on the muffler bolts. 4 Share this post Link to post Share on other sites
ri702bill 13,105 #12 Posted 5 hours ago Excellent safety wire job. Note that if either bolt loosens, it tightens the wire. Share this post Link to post Share on other sites
pfrederi 21,201 #13 Posted 5 hours ago The B&S single L head service manual has some diagrams. If you give me the engine Model and series I can look it up and scan the pages this evening 1 1 Share this post Link to post Share on other sites
cafoose 3,867 #15 Posted 1 hour ago https://www.small-engines.com/5briggs 1 1 Share this post Link to post Share on other sites
Ed Kennell 47,425 #16 Posted 1 hour ago (edited) Thanks Chuck, Paul, and Garry. She's starting with one pull and running with open choke. So the two loose carb bolts was the problem. Amazing it ran at all with a dangling carb. The qov. linkage wasn't much of a problem but I had a bit of a problem with the throttle linkage. Found this pic in the OM that showed the how the U shaped part connected the throttle to the qov. My linkage pic. Throttle Governor Edited 1 hour ago by Ed Kennell 1 1 Share this post Link to post Share on other sites
Ed Kennell 47,425 #17 Posted 29 minutes ago 6 hours ago, ri702bill said: click off a couple of pictures at different angles Your advice is well taken Bill. The part that gave me trouble was on top and easily visible. A picture would have saved me some time. I searched thru over 50 pictures in the OM till I found the throttle configuration that showed the part in question. Seems Briggs used a different arrangement for every engine. Share this post Link to post Share on other sites
Ed Kennell 47,425 #18 Posted 9 minutes ago 5 hours ago, C-85 said: I had the same issue of the carb bolts getting loose on the 5hp B&S on our wood splitter I was lucky, no problem with the muffler bolts. After I found the loose carb bolts, I knew that was the problem. I could have just retightened the bolts but they did not have lock washers so I wanted to remove the bolts and add lock washers. My bolts had both a hex head and a torx head so I was able to use a short torx bit with a box end wrench to tighten them. I see you have lock washers. Were they factory or did you add them? Share this post Link to post Share on other sites