+ Reply to Thread
Results 1 to 7 of 7

Thread: Compression

  1. #1
    kdaniels1 Guest

    Default Compression

    My engine has lost compression. Has spark. The bolts to the cylinder are now loose as well. What do i need to do?


  2. #2
    gone_fishin Guest

    Default

    that's a pretty sketchy description...my opinion based on what you did say:

    remove the headbolt nuts, make sure the headbolts are fully seated in block, retighten the nuts.

    if this is the only problem, it should start and run again.

    if/when you get it running, check gaskets and replace if needed.

    good luck...welcome to MBc.

  3. #3
    kdaniels1 Guest

    Default Compression

    Here is what happened. I was coming home from the grocery store and in the neighborhood when the motor lost compression. I changed the top gasket out and the bottom gasket out. As I was putting everything back together the 2 bolts striped out on me. What can I do to fix the bolts or do I need to replace them?

    Thank you,
    Kimberly

  4. #4
    gone_fishin Guest

    Default

    this topic might be of some help: http://www.motoredbikes.com/viewtopic.php?t=458

  5. #5
    Join Date
    Jul 2008
    Posts
    23
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Default I just lost compression on my 80CC

    I resealed and retorqued the head bolts and still no compression. I think the bottom gasket of the cylinder is shot. What do I need to do to get at that gasket? Anybody?

  6. #6
    Hot Dog Piggy Tails Guest

    Default

    take your carb off pull your spark plug, exhaust, then pull all 4 head bolts pull your head and head gasket off then tap your block (jug) with a peice of wood and itll come loose! lift it up and replace the gasket I use gasket material sheets from our true value marina.

  7. #7
    Join Date
    Apr 2008
    Location
    north bend wa.
    Age
    70
    Posts
    1,076
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    7

    Default

    the stock wardware should be replaced with stronger american hardware. use locktite on studs and blue on nuts.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •