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Gator 620i gas in engine oil
I bought a JD gator 620i in 11/07. I am having trouble with gas in the oil.I have not had much success with yhe dealer.I know there are other people having this problem,any ideas
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Gator 620i gas in engine oil
I do not know the gator but I'll throw out a couple of ideas from past experience.
If it has a mechanical fuel pump and the diaphragm ruptures they might leak fuel into the crankcase (depending on design).
If it has a gravity feed tank and the needle-and-seat does not seal properly fuel might leak into the crankcase when the fuel bowl overflows (typical Honda small engine problem).
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Gator 620i gas in engine oil
This engine has fuel injection and fuel tank is below the engine.
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Gator 620i gas in engine oil
I think there is a post on here somewhere that deals with your problem. If I remember correctly I think they replaced the computer or the throttle body. Ask your dealer if there is a bulliten on it, I know I've seen it on here.
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Gator 620i gas in engine oil
There is no O2 sensor, so injection is preprogrammed. If you do a lot of starting and stopping of engine or prolonged idling, you will wash down the cylinders getting fuel in the oil. Know problem, but they may not admit it. I've seen up to a pint/month!!!! with lots of starting and stopping. Dealer will tell you to run it hard and change oil frequently!
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Gator 620i gas in engine oil
AllisMan;
I haven't noticed a problem yet with out XUV 620i. It varys from a hard couple hours to a five minute run to the mailbox. I'm kind of a wacko when it comes to oil and filter changes on small equipment like mowers, Gators and the like. Probably none of them run more than 25-30 hours between changes, so if I do have a gas in the oil problenm I just never knew it. My reasoning is that with Gators and mowers easily topping ten grand I don't mind a ten dollar oil and filter change that might add up to 40 or 50 bucks a year. I know they have good air filter systems but most of those little engines sit right down where all the dirt gets to them.
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Gator 620i gas in engine oil
I have a 620i bought 5/08 135hrs on it , sent to dealer this week after I could not diagnose RPM loss. Dealer advises needs motor overhaul& advises caused by idling or frequent on / off motor not geting up to temperature. Neither cause applies though! Technically out of warranty but this is not a $2000 chinese POS knock off, dealer is contacting JDeere regional mgr. Will post further...
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Gator 620i gas in engine oil
Like I said... It's frustrating. I have a 620i with 60 hrs...same issue. You would expect this from a POS Kymco!
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Gator 620i gas in engine oil
What kind of fuel pump delivers gasoline to the fuel injection? I know a lot of these Gators have Kawasaki engines, and I have a Kawasaki 430cc V-twin with a vacuum type fuel pump that I have to replace about every 18 months due to a perforated diaphragm. Dang thing is a sealed unit, so the whole bloody pump has to be replaced. Vacuum to the pump comes from the crankcase. Once perforated, fuel goes two ways; via normal line to the intake, PLUS back down the vacuum line and into the crankcase.
If this machine does not however have a vacuum type, disregard.
//greg//
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Gator 620i gas in engine oil
As I said in a prior post I likely change oil too often to catch the problem if I do have it.
I've been greener than a tree hugger for the past 20-25 yrs. more because of the dealership than to make the Deere quarterly report look good. But as has been said this isn't a cheap Chineese POS knock off, Deere is supposed to be somewhat of a standard of quality, which they have been in most but not all things they have built.
From as many reports as I have seen and heard about with this problem Deere does need to approach this as something of a their fault issue rather than always a customer fault issue. I don't feel real happy with a 12 grand supposed to be a standard of the industry machine in my shed that may need an engine at 300 hours.
You guys with the known problem I urge to put the squirm on Deere and keep us up to speed.
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02-10-2010, 18:21 
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