Results 1 to 3 of 3

Thread: New Transmission 4 Redsky

  1. #1
    Join Date
    Sep 2007
    Location
    37.205346,-121.963398
    Posts
    779

    Default New Transmission 4 Redsky

    Redsky - Olson 34 - has been without a forward gear for two months. The marina members were asking lots of questions about why she was seen backing down the fairway several times. As of this weekend I have installed a new transmission, exhaust riser mixing elbow, and flywheel damper plate. A short tour of the marina seems to indicate it all works as nothing flew apart. The Hurth/ZF transmission was replaced with a Twin Disc TMC MG40 (Italian build) . Lucky that it was almost a drop in replacement as only the motor alignment and the shift cable needed shimming / moving. Also luckily room was made for the removal of the transmission by inflating a dock bumper under the engine as opposed to pulling the entire engine out of it's little cave. A bit more oil clean up and a touch of copper colored Rustoleum and the boat will be back patrolling the waters south of the Bay Bridge. Engine: Universal 25XP Transmission: HURTH ZF 30 Name:  Tranny.jpg
Views: 113
Size:  169.2 KB

  2. #2
    Join Date
    Apr 2014
    Posts
    36

    Default

    Brian What was the cost of the new Twin Disc transmission? Did a local vendor provide it or were there shipping costs involved? About how many hours were involved in swapping out the new unit for the old Hurth?

  3. #3
    Join Date
    Apr 2014
    Posts
    36

    Default

    Good detailed information on this Ericson Yachts forum thread on replacing a Hurth transmission on a Universal M25XP engine including costs, sources for the Twin Disc and some issues to consider along the way:

    https://ericsonyachts.org/ie/threads...8/#post-154506

Posting Permissions

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