Lost Pup 172 #1 Posted April 6, 2018 Posting a few photos of my own ( Onan P216 - 416H ) to answer the question. PO said the tractor never ran well. 4 1 2 Share this post Link to post Share on other sites
clueless 2,893 #2 Posted April 6, 2018 2 hours ago, Lost Pup said: Posting a few photos of my own ( Onan P216 - 416H ) to answer the question. PO said the tractor never ran well. Ah, those mysterious ethanol gas crystals . Share this post Link to post Share on other sites
953 nut 51,003 #3 Posted April 6, 2018 I should have taken a picture of a fuel pump I rebuilt a few years back, the stuff in it was thick and looked like shoe goo. After soaking in lacquer cleaner over night it was floating on the surface, didn't even dissolve! Have no idea what it was but the steel tube to the carburetor was half full of it too. 1 Share this post Link to post Share on other sites
lynnmor 6,698 #4 Posted April 6, 2018 While products like Sea Foam have their place, I find disassembly is the only long term fix. Dissolving that mess with snake oil, and sending it thru whatever, is making the problem worse. 3 3 Share this post Link to post Share on other sites
WVHillbilly520H 10,369 #5 Posted April 7, 2018 MEK is a better solvent than laquer thinner but the Berryman carb cleaning buckets are better than the Gunk brand, I'm wondering if a sonic cleaner like jewelers use wouldn't be a good option too? and if all that is in the carb the fuel lines are usually ate up from the inside out another issue of ethanol, Jeff. 2 Share this post Link to post Share on other sites
boovuc 1,090 #6 Posted April 7, 2018 I looks like someone was using that carb as a urinal. (I think they left the cake holders in there too)! MEK is a bit too nasty on gaskets and particularly any rubber or synthetic rubber parts if your soaking the whole carb without complete disassembly. Berrymans or NAPA carb soak works best if you give it time. 1 Share this post Link to post Share on other sites
AMC RULES 36,936 #7 Posted April 7, 2018 ...but, do take note... if left in more than 24 hrs... ...you'll discover the aluminum has started turning black. 2 1 Share this post Link to post Share on other sites
JimmyJam 516 #8 Posted April 7, 2018 Looking good Craig! 1 Share this post Link to post Share on other sites