1. Can’t make it to the GIE+EXPO 2017?
    LawnSite brings the trade show floor to your fingertips with our new GIE+EXPO 2017 Sneak Peek video series debuting now in the Lawn Mowing forum.

    Dismiss Notice

Engine compression

Discussion in 'Trucks and Trailers' started by ArboristSite, Sep 27, 2001.

  1. ArboristSite

    ArboristSite LawnSite Member
    Messages: 65

    Anyone have information on what the compression should be per cylinder on a Dodge 360? I found one used for my plow truck and want to check it out before hand. Thanks, Darin
     
  2. strickdad

    strickdad LawnSite Senior Member
    Messages: 544

    what year engine?
     
  3. ArboristSite

    ArboristSite LawnSite Member
    Messages: 65

  4. thelawnguy

    thelawnguy LawnSite Silver Member
    Messages: 2,411

    Minimum compression 100 psi (engine warm spark plugs removed and wide open throttle)

    Maximum variation per cylinder 40 psi.
     
  5. HOWARD JONES

    HOWARD JONES LawnSite Member
    Messages: 233

    May I ask what the FSM is, and is it online? Many years ago I raced and built my own engines - 40 pound variation sounds absolutely awful, like a real smoker.
     
  6. thelawnguy

    thelawnguy LawnSite Silver Member
    Messages: 2,411

    Factory Service Manual (Chrysler)

    No its not online, its in your garage or local used bookstore :D
     
  7. strickdad

    strickdad LawnSite Senior Member
    Messages: 544

    a compression test is an ok way of telling and engines cond. but a leak down test is alot better. the above post says 100 psi with a maxium spread of 40 psi. i say he is in the ball park , but it should be around 115 to 120 with no more than 20 psi. spread.
     

Share This Page