Results 1 to 3 of 3
  1. #1

    Hydro-lock and crankcase

    I have a 96 780sl that is running very poorly, seems like only one cylinder is firing, carbs checked out fine. The crankcase was full of fuel last year but I got that cleaned out by turning it over without the plugs in. It was cranked over several times with the plugs in, it was also flipped and turned back over in the wrong direction.
    Could that pressure cause the crank to twist and be why the rear and middle cylinders seem to be misfiring? If so, do I need a new crank or can the old one be re-aligned?

    Thanks

    ekmols


  2. #2
    Sooo...how much for the 780? stimpsonjcat's Avatar
    Join Date
    Apr 2012
    Location
    Georgia - Lake Lanier - near 6TH
    Posts
    853
    +1
    19
    Do an index test to see.

    Several methods have been done and detailed here (do a search), pick whichever makes the most sense to you.

    I use google to search here BTW, so 'greenhulk crank index' should get you lots of threads to look thru.

  3. #3
    BlueFishCrisis's Avatar
    Join Date
    Aug 2011
    Location
    Medina, Ohio, United States
    Posts
    4,988
    +1
    140
    Check your compression too just to be sure you are not chasing the wrong problem....

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. GPR Crank installation and crankcase sealing
    By OsideBill in forum Yamaha How To & FAQs
    Replies: 48
    Last Post: 05-21-2017, 04:55 PM
  2. Help with SC locked and striped gear
    By whitemax in forum 4-Tec Performance
    Replies: 19
    Last Post: 08-29-2011, 10:45 AM
  3. hydro locked ultra 150 what to do?
    By jayblazer in forum Kawasaki Open Discussion
    Replies: 20
    Last Post: 08-26-2011, 11:00 PM
  4. WTB crank and crankcase
    By bajaeater in forum Yamaha Classifieds
    Replies: 8
    Last Post: 06-08-2010, 01:11 AM
  5. WTB: Ultra 150 magnetic lock and key
    By Axlef1123 in forum Kawasaki Classifieds
    Replies: 1
    Last Post: 08-13-2008, 11:57 AM

Posting Permissions

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