Results 1 to 3 of 3
  1. #1

    FX140Blown Cylinder Head Gasket

    I just noticed an enormous amount of oil in the hull of my 2004 FX140. I discovered that there a two rubber 'nubs' on the Cylinder Head Cover Gasket, facing the front of the craft. One was blown out and leaking a lot of oil when running. Any ideas why it blew out, and is this gasket easy to replace? It looks straight forward.

    Thanks


  2. #2
    PEST!'s Avatar
    Join Date
    Jun 2008
    Location
    Rockledge Florida
    Posts
    768
    could be excess pressure in the crankcase. From excess blow by of piston rings or a plugged or restricted crankcase vent

  3. #3
    32 Valves To Love! Racecar_Dave's Avatar
    Join Date
    Jul 2009
    Location
    Alum Creek
    Posts
    635
    +1
    2
    It should be really easy to replace just take off the coil packs, valve cover and unbolt the head. You need to find out if the head bolts/studs can be reused or if you need to replace them. Most automotive head bolts are only safe to use once.

    Should take your head to the local automotive machine shop and have them put a port/polish/valve job on it and pick up an extra 25+ HP

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Use 12ll as cylinder head COVER gasket? SUV 1200
    By jhawker23 in forum Yamaha How To & FAQs
    Replies: 2
    Last Post: 09-18-2016, 11:47 PM
  2. SOLD Factory Yamaha Cylinder Head Gasket 1.8L
    By ksalles in forum Yamaha Classifieds
    Replies: 7
    Last Post: 08-12-2015, 11:29 AM
  3. FS - Parts FS - Nice 750 Cylinder, head, used piston, rings, head gasket, base gasket combo
    By BlueFishCrisis in forum Polaris Classifieds
    Replies: 12
    Last Post: 08-29-2013, 09:42 AM
  4. thinner head gasket wont go on right
    By PAINKILLER in forum 4-Tec Performance
    Replies: 12
    Last Post: 05-15-2006, 08:58 AM
  5. Rotax Racing Head Gasket good or bad
    By Jrsrxp in forum 4-Tec Performance
    Replies: 2
    Last Post: 09-06-2005, 08:33 PM

Posting Permissions

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