Join Today, It's Simple and FREE!
As a member, you can post in our forums, upload your photos and videos, use and contribute to our downloads, create your own member page, add your ATV events, and even start your own ATV club to host your own club forum and gallery. Registration is fast and you can even login with social network accounts to sync your profiles and content.
By Brandon Bollinger
Doesnt seem to make the sound all the time. Mostly does it under load or going up an incline. Its kind of like a clunk and or grinding noise, Kind of hard to decipher. Today while going up an incline it actually stopped and it sounds like something spinning and then it ingauged again and it would move. I checked the clutches and installed a new belt before it did that also. Rear drive shaft seems ok where U joint is too. Has all new rear CV shafts and bearings and al new bushings in rear arms. Also flushed out the rear Diff with no shavings. Any ideas or where to check.
So few months ago I acquired a 01 Explorer 4x4 (think its a 350 but not sure)
Anyway the owner said it started reving very high, shut the key off and still kept running
until finally he shut off fuel and it finally died. During the run away he said the exhaust got
red hot and has melted plastics to prove it. Said some thing flew out the tail pipe, I kinda figured
it was the top of the piston. Anyway finally got around to looking at it (have a lot of other projects in the works)
and checked the compression, Shows about 40 psi. Can hear air coming out the carb while rotating the motor over.
Gonna pull it apart eventually, don't hear any noises or binding in the stroke, You think the piston came apart?
any horror stories of these and is it worth my effort and money? Don't really have any money in it yet. Thoughts? Az
By Dra O
posted a while back - it was running at one point - I have all the plastic shroud off - it's down to frame and engine now
-fuel pump: when line from petcock is attached, no fuel comes out other side to carb; the line to the carb is open (can blow through it); I thought when I cranked engine that the pump would spit out fuel on other side but it does not; I removed fuel pump and opened it up - diaphragm looks good - but internal areas had lotsa calcification build up - I cleaned this out and dried it good - the clear plastic pieces (?diaphragms) aren't broken - the spring w/ steel ball on end moves freely; am putting it back on tomorrow; but can anyone answer about the pump? isn't it supposed to pump fuel through it... to other side... to carb? puzzling
-along with fuel pump: I replaced petcock 3 weeks ago (gas tank had rusty fuel in bottom - cleaned it out prior to new petcock); when I turn petcock arrow NOT to on or reserve, fuel comes out of line; when I turn it to on or reserve, fuel doesn't come out; puzzling
-I don't know what's on back of fuel pump - it's a valve that has a hose coming out of it - looks like it goes to engine/carb - I haven't traced this out yet - what is it?
-can squirt gas on air filter and engine will run for 2-3 seconds then stop - fuel in top of carb (under diaphragm) does same
-it likely needs carb rebuild - will get to this - but something isn't allowing fuel to get from fuel pump to carb
-I THINK it has a mikuni model x carb - diaphragm is ID 26mm OD 68mm - hard to find inexpensive diaphragm, I guess because it's a model x
-last thing - I replaced solenoid due to old one clicking; I HAVE to be charging the battery or it won't start/turn over - battery just goes dead; but if charging, it'll turn over nicely; i'm guessing it's a bad battery
-any help appreciated - I've never owned an ATV before - inherited this beast from grandparent in-law
Recently Browsing 0 members
No registered users viewing this page.