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  1. #11
    Platinum Member
    Join Date
    Dec 2006
    Posts
    585
    Location
    Coastal Rhode Island
    Tractor
    Jinma 354, purchased 2007

    Default Re: Compression release on tractor

    Quote Originally Posted by stampede38899 View Post
    So this is an aid to help with cranking, do they use that instead of glow plugs in these chunese tractors? i beleive my tractor has the plugs as my switch has a place for it.
    Mine has both.

  2. #12
    Bronze Member
    Join Date
    Feb 2012
    Posts
    51
    Location
    Desota Forest, ms.
    Tractor
    WT404

    Default Re: Compression release on tractor

    Mine has no Glow Plugs. Without the compression release, it takes over 1000 amp of battery to spin engine fast enough to start w/o starting fluid. Engine turns over slow with 750amp battery. Originally, tractor had 2 - 6 volt batteries in series to give amperage.

    Yes, lever from operator seat works fine. I use to stick my hand at back off engine and pull linkage while using a screwdriver to jump solonoid before I fixed starting circuit. I am in no hurry and will get to it in a month or so after I get some more chores done. Sure would like to move to the islands Rich. Is it paradise there?

    .

  3. #13
    Platinum Member
    Join Date
    Nov 2008
    Posts
    794
    Location
    US Virgin Islands
    Tractor
    Jinma JM304

    Default Re: Compression release on tractor

    Well, I've never needed starting fluid. (grin) Of course, I wouldn't use that stuff in a diesel no matter what. Way to easy to trash an engine that way.

  4. #14
    Veteran Member
    Join Date
    Apr 2012
    Posts
    1,264
    Location
    Northern Ontario, Canada
    Tractor
    2012 Kioti CK27HST

    Default Re: Compression release on tractor

    DO NOT use ether if you have glow plugs.
    DON'T use gasoline fumes either.

  5. #15
    Super Member greg_g's Avatar
    Join Date
    Dec 2003
    Posts
    5,984
    Location
    Western Kentucky
    Tractor
    JD3720 Cab, 300X loader with 4-in-1 bucket

    Default Re: Compression release on tractor

    Quote Originally Posted by Hickory Creek View Post
    Mine has no Glow Plugs. Without the compression release, it takes over 1000 amp of battery to spin engine fast enough to start w/o starting fluid. Engine turns over slow with 750amp battery. Originally, tractor had 2 - 6 volt batteries in series to give amperage.

    Yes, lever from operator seat works fine.
    You may have more than one problem. The SL3105 is a direct injection engine, and should start much easier than that - with or without compression release. I'd be curious to learn whether the compression release stopped working after someone performed a valve lash adjustment. Did you buy this tractor new? or used?

    //greg//
    USN (Ret)
    Former Chinese tractor owner (x4)
    Current John Deere owner

  6. #16
    Bronze Member
    Join Date
    Feb 2012
    Posts
    51
    Location
    Desota Forest, ms.
    Tractor
    WT404

    Default Re: Compression release on tractor

    Ok, for those of you who don't remember me, here is the start.
    http://www.tractorbynet.com/forums/c...04-29-4kw.html

    If I do not use starting fluid, I need my car battery connected to tractor with car engine running to crank this thing off. Really need to spin up starter. And at that, it takes 6-8 seconds of constant cranking to fire it off. It seems like when I pull the fuel shut down lever, it removes all the fuel from pump and system and it takes 6 seconds of cranking for it to build back up before it will even attempt to try to run.

    How long should it take to crank one of these?

  7. #17
    Veteran Member Bob Rooks's Avatar
    Join Date
    Feb 2007
    Posts
    2,155
    Location
    Bothell & Silverdale, WA
    Tractor
    Yuchai Bulldozer

    Default Re: Compression release on tractor

    Quote Originally Posted by Hickory Creek View Post
    How long should it take to crank one of these?
    About 2 - 4 complete revolutions max for the DI engines. It's very unlikely that the fuel is siphoning back to the tank because the fuel level is always above the injection pump (flooded suction).
    Curious if you are getting white or black smoke whisps from the exhaust during startup (sans starting fluid)?
    Your injector timing could be a little retarded. Engine could also be low on compression.
    Yuchai YCT dozer, Mustang 2040 skid steer, Mitsubishi MS035 Mini-Ex, Trimble equipped 7' Dual Dozer, and a LiTW BH7600 back hoe for sale.

  8. #18
    Super Member greg_g's Avatar
    Join Date
    Dec 2003
    Posts
    5,984
    Location
    Western Kentucky
    Tractor
    JD3720 Cab, 300X loader with 4-in-1 bucket

    Default Re: Compression release on tractor

    Quote Originally Posted by Hickory Creek View Post
    How long should it take to crank one of these?
    Depends on the temperature, but this time of year it should be running within 2 seconds. Again, new or used? And to your knowledge, has the valve cover ever been off for any reason?

    //greg//
    USN (Ret)
    Former Chinese tractor owner (x4)
    Current John Deere owner

  9. #19
    Super Star Member Diamondpilot's Avatar
    Join Date
    Jan 2007
    Posts
    13,835
    Location
    Daleville, IN
    Tractor
    Jinma 254/284 Ford 861 Powermaster at work

    Default Re: Compression release on tractor

    Mine has both Compression Release and Glow Plugs. It cranks right over after 20 seconds of glow plugs when its below 40. Above that I use nothing, just start it as if it were my car, truck, boat, ect.

    Chris

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