RED-Z06 2,531 #1 Posted May 18 Its long been known that briggs 31xxxx and 33xxxx vertical single engines have cam issues, the compression release arm snaps off...and it requires you to pull the engine, drain it, pull the valve cover..rockers, push rods, sump..governor/slinger, cam and lifters...then flushing the engine of metal debris...and reassembling it. Briggs never addresses the problem, and there is pretty much no warranty on new parts..they will always say there was some underlying cause. Customer brings in a rider, i gave him a quote to repair and tried hard to discourage him from getting it done because...it will likely happen again, the new cam is just as flawed as the original...they are actually made even more poorly since covid. He wants it done...fine, so i tore it down, put in a new cam...it takes about 3 hours start to finish, started up fine...ran fine, i ran it 30 minutes, no leaks, no smoke. Next morning..it turns over fine but acts like its flooded, an unrelated issue...something in the carburetor probably from all the movement. So i addressed that, restart it.. no problems, its running and it jerked one time, like hesitated...i shut it down, go to restart...same problem, compression release is broken. Im not doing it again, in fact im not going to do another one until parts quality improves, because this happened last year and another one where the lobes were not hardened and wiped both off in an hour. Im not planning to charge him anything, its not fixed, im just over it..its 103⁰ with heat index in the shop and to do all that and have a new internal part grenade like that is beyond frustrating. 4 Share this post Link to post Share on other sites
stvski80085 197 #2 Posted May 19 I would refuse to fix it too. Tell him to swap a better motor on it if he really wants it fixed. Steve Share this post Link to post Share on other sites
RED-Z06 2,531 #3 Posted May 19 5 minutes ago, stvski80085 said: I would refuse to fix it too. Tell him to swap a better motor on it if he really wants it fixed. Steve I blame briggs, their shoddy engineering caused this Share this post Link to post Share on other sites
stvski80085 197 #4 Posted May 19 All brands quality is going down so the stock will go up. Share this post Link to post Share on other sites
RED-Z06 2,531 #5 Posted May 19 54 minutes ago, stvski80085 said: All brands quality is going down so the stock will go up. Whats frustrating is, if you buy from Briggs or the aftermarket its the same cam kit, $100 dollar difference in cost...and neither have a warranty, ive had a couple oem Briggs cams fail the same way the $40 Amazon cams fail. Briggs went to Chinese oem carbs a few years ago, suddenly we had fuel solenoids shorting and melting the plugs...Briggs says its not their problem Share this post Link to post Share on other sites
