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  1. #1
    Gold Member BlackRaptor's Avatar
    Join Date
    May 2008
    Posts
    368
    Location
    SEMN
    Tractor
    John Deere 3320

    Default John Deere 70 smoking question

    Well i think my rings or valves are going bad in the 70.

    I topped off the oil and coolant couple days ago and i noticed she has really started smoking. even at idle i can see light white smoke and when i throttle up or work the motor it smokes white until you load it down than it darkens also i'm getting little light splatters of oil on the hood from the exhaust. is there an easy way to figure out if the valves are leaking or if its the rings?

    I'm going to do a total rebuild restore but not for a few more years. the tractor runs perfect still starts right up and the power seems to be about the same.
    I used it for a couple hours this weekend so tonight i plan to add oil to it tonight and can report on how much oil it takes to get it back to full again.

    Also my son LOVES the 70. he calls it the Big putt putt.
    and for the safety police when hes on the seat for a ride i am going VERY slow and am not doing any loader work or pulling. I grew up riding on this same tractor with my dad and grandpa. he's Gen 4 to ride on it.

    Also the from the front picture its running and you can see the smoke from idle. and yes the tractor is in N breaks are locked. ha-ha.

    John Deere 70 smoking question-20130428_104230-jpgJohn Deere 70 smoking question-20130428_104241-jpgJohn Deere 70 smoking question-20130428_110111-jpg
    Chad.

    2012 John Deere 3320 Cab 300CX FEL
    2010 John Deere Z910a
    1962 JI Case 830 wide Front
    1960 Farmall 460 Narrow Front
    1954 John Deere 70 Wide Front FEL

  2. #2
    Silver Member
    Join Date
    Oct 2012
    Posts
    122
    Location
    Windham
    Tractor
    John Deere 70

    Default Re: John Deere 70 smoking question

    Has to be rings or valve guides are getting bad.Have had a few of these two lungers apart over the years and a lot of them have condensation that pits the cylinders especially us Northerners with the extreeme heat changes we have.My 70 gas is finally going back together new engine and all.

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