On Wednesday 05 June 2019 09:45:17 am Dave Cole wrote: > You have at least one issue, perhaps more. > > 1. Oil level was over full. By 1/4" > The float in the carb is stuck open which causes fuel to drain > into the carb and then into the intake valve, by the piston and into > the oil reservoir.
I've had this happen, caught it before twisting the key, and changed the oil and cleaned the carb, usually a walbro. > It isn't that unusual as I have had this happen on vertical > shaft Briggs engines. Seems to be a generic problem with briggs verticals. Unless the carb is a pumper with the tank hanging on the bottom of the carb. > 2. Plumes of smoke > With the oil overfull with oil and gas, the oil is now very thin > which blows by the piston rings, gets into the cylinder and blows lots > of smoke. That its doing, light smoke even at 900 rev idle. > 3. Blowing oil out the engine - you have way too much oil and gas in > the crankcase. Not according to the dipstick. It was sitting with the right front tire flat, which usually makes the stick show 1/4" high by running to the righ side of the case where the stick is. Thats high on the stick but not excessively so. > Solution: > Remove the carb and unstick the float valve/replace if needed, and > clean the carb and blow out all of the passages. Been there, done that. lox clean internally. > Drain the oil and replace. Once you get it running, drain and replace > again to get rid of the last bits of gas in the oil. > Its best to install a fuel shutoff valve between the tank and the > carb, Got one. > that way if you have a leaky float valve, this won't happen > again. If the spark plug is fouled up really bad, you might need to > replace it. > > Chances are that your engine is still ok. > > If you are running the tractor on standard pump gas, that is likely > the issue. The Ethanol in our crappy gas attacked the die castings > that the carb is made of the results in zinc oxide (white stuff) in > the carb which plugs up passages, etc. If you can, start buying > alcohol free gas and use that in your lawn equipment, weed wacker > etc. Life will become much easier! :-) > > I used to service small engines when I was younger. I was even a > McCulloch chainsaw repairman. Back when they were a real American > company that made things in the US. Now McCulloch is just a brand > name used by a Chinese company. So I've noted, much to my dismay. > Dave > > On 6/5/2019 3:24 AM, Gene Heskett wrote: > > On Wednesday 05 June 2019 01:06:33 am Andy Pugh wrote: > >>> On 5 Jun 2019, at 00:15, Gene Heskett <[email protected]> > >>> wrote: > >>> > >>> Get up this morning, check the oil & its 1/2" overfull??? Not even 1/2". 1/4", 3/8" maybe but it was leaning that way because the right front tire was also flat. All I know is that it was shut off with at least 2 gallons of gas in the tank, the shutoff valve was closed, and the tank, when I did check it, was dryer than a bone, so it went someplace, but its not in the engine now. If I feel like it I'll pull the head & see if theres any chrome left on the cylinder wall. If I feel like it but I'm sick of being $200 dollared to death. I'm done with John Deere. I have a split rail fence and I tapped it on one of the rails. Broke off the bolted on frame horns the hood pivots on. By the time I'd got the bolts to go with a new piece of bent 7/16" rod, it was a hair over $200. For $12 worth of stuff? I priced a new pan for the 38" deck, with shipping to the dealer in Flatwoods, 40 miles down the superslab, a few cents over $400 for a bare 16 gage stamping? 'tain't gonna happen. > >> Is it a vacuum fuel tap? If the vacuum diaphragm goes it can let > >> fuel in to the crankcase. No. > > No, straight gravity feed, with a hand operated globe valve (1/4 > > turn) shut off in middle of line from tank to carb. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
