Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 21-05-2016, 19:55   #1
Registered User

Join Date: Jan 2009
Location: Tampa, FL
Boat: Yankee 30'
Posts: 155
Hurth HBW gearbox

I have a question about a Hurth HBW50 gearbox. I have one in the back of Universal M25 diesel that I installed on my boat back in '83. In '85 I managed to fill it with salt water while motoring against stiff norther in the intracoastal. It was still working when I drained and refilled it with ATF few times, but I rebuilt it anyway, just to be sure. Replaced few bearings, half the friction plates and everything was good for the next 20 years. Then it started to refuse to engage in forward. Occasionally first, with regularity later. Checked the shift lever travel, the shifter shaft plate fore/aft position. OK. No, it doesn't exactly slip, which is the problem I read about here often. After moving the lever into fwd and neutral 10 times or so it engages with softer than normal klonk and I can motor for hours with no problem. At first, it may pop out of gear and back in few times at low RPM as if the gearbox needed to warm up. Later on a trip it is more willing to engage again.
Now, I wanted to replace the gearbox many times, but never could come up with the money, so I lived with it. I am thinking about rebuilding it second time now and I am afraid that replacing the friction plates may not do the job. I remember the hubs with the little balls in their curved tracks that generate the thrust for the clutches and I worry that it may be there that the problem lies and my only option would to buy ZF 6M or ZF 10M. Anyone here can advise?
sv.antea is offline   Reply With Quote

gear, gearbox, hurth

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hurth HBW 150 Rebuild bdcruzer Propellers & Drive Systems 26 09-02-2014 12:07
Hurth HBW 50 R2 gearbox removal GrahamW Engines and Propulsion Systems 20 27-01-2014 11:26
Hurth HBW 10, HBW 100 and HBW10-2R Maxs Engines and Propulsion Systems 3 01-09-2011 07:17
Lost Forward and Reverse (Hurth HBW 250) rabrown10 Engines and Propulsion Systems 7 04-08-2010 07:40
Hurth HBW 10-2R in pieces on my bench Kaptin-Jer Engines and Propulsion Systems 13 26-04-2008 15:09

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:00.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.