1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Wont start after rebuild

Discussion in 'Engine Building' started by Treve o-w, Oct 22, 2015.

  1. Treve o-w

    Treve o-w New Member

    Messages:
    1
    Likes Received:
    0
    Joined:
    Oct 22, 2015
    Hi guys I'm new on here. Using this as a last resort. My mb6 had a cracked valve so I replaced it. Everything went together, I've compression tested it and it's around the 150 mark on all of them bar one where that sits at around 130-140. It has compression, it has spark, it has fuel, I've set the timing as per timing marks for the bottom and top so timing isn't an issue but she doesn't want to start. I'm at the end of my tether now having spent the last two days problem solving. If anyone could she'd any light on me it would great. Many thanks. Treve
     
  2. get_nick

    get_nick These snozzberries taste like snozzberries... VIP

    Messages:
    11,937
    Likes Received:
    1,056
    Joined:
    Apr 21, 2003
    Location:
    Washington State
    interesting. it sounds like you've checked everything that I would start with. thread bump for you.
     
  3. Briansol

    Briansol Admins Admin VIP

    Messages:
    21,448
    Likes Received:
    2,110
    Joined:
    Nov 18, 2007
    Location:
    CT
    i would double check that you're not 180 degrees out on the timing. if you have all 3 fuel/spark/compression, it should start. if your timing is off, it will have the wrong valves open (exhaust) when it should have intake air and fuel coming together.

    are you flodding your plugs?
     
  4. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

    Messages:
    30,015
    Likes Received:
    3,945
    Joined:
    Sep 28, 2002
    Location:
    CT
    ^^ happened on my mazda when i was putting a new engine in it
    took way too damn long to figure that one out
    :lmao:
     
  5. get_nick

    get_nick These snozzberries taste like snozzberries... VIP

    Messages:
    11,937
    Likes Received:
    1,056
    Joined:
    Apr 21, 2003
    Location:
    Washington State
    That is what I was thinking as well. When everything is set up right, it usually comes down to timing.
     
Verification:
Draft saved Draft deleted

Share This Page