Mudrig150 331 #1 Posted May 28, 2019 So my brother has a tractor with a B43G and I was wondering the longevity of the onans. He got it for 100$ from the neighbour, he said it had a fuel pump issue but my brother didn't even test to see if the pump was bad, he just immediately went to tearing the tractor down to do whatever to it. It's been sitting since 2016 I think, and the motor is tight, but he thinks its because the driveshaft is compressed from the motor not bolting in correctly. The hour meter says something like 2314 hours, so I'm concerned it's toast. Haven't checked oil or anything, but I think it has some. Any problems that would arise? Also, how would I go about test running it? Share this post Link to post Share on other sites
Mudrig150 331 #2 Posted May 29, 2019 (edited) So I looked at the motor and I was unable to determine if it had any oil leaks or not. Guess I'll have to look it over a bit better. For now I have to focus on my 317 and getting this magnum 18 for it. Edited May 29, 2019 by Mudrig150 Share this post Link to post Share on other sites
ZXT 2,401 #3 Posted May 30, 2019 There's certain a plethora of issues that could arise from a 2300 hour engine that is unexpectedly tight.. Before I asked anything, I woudl've checked the oil to see if it was clean, or nasty with gunk and metal shavings. I would check the oil level and oil the cylinders before I turned it over too much. Does it sound like anything is overly loose when turning it over? Any rod noise? As for test running it, I would do it the same as running any other engine. Make sure it has clean oil and good gas in it, and give it a go. Not much you could hurt. Share this post Link to post Share on other sites
Mudrig150 331 #4 Posted May 30, 2019 I think something's not right, the driveshaft is severely compressed from something. Would that cause the engine to feel tight? Share this post Link to post Share on other sites
