Thread Tools Search this Thread Display Modes
Old 11-16-2017, 03:51 AM   #21
City: Canvey island essex
Join Date: Nov 2017
Posts: 2
Originally Posted by bogranjac1 View Post
If the question is regarding the shudder and addressed to me - yes I did fix the problem.
I have done over 500 hrs since repair and all is fine.

The root of the trouble is 'varnishing' of the surfaces of 2 cones in the gearbox. These 2 cones must have a mat finish so when they engage there is good contact for the drive. What happens is that over time and INCORRECT oil in g/box the surfaces become 'glazed' and slip.

You need to remove the box dismantle the gears and use some grinding paste on the 2 surfaces of the cones that engage.
Caution- do not go overboard when using the paste - use fine grade and ONLY rotate the cones on each other a max. or 6 complete rotations !!
You only want to clean the surface NOT grind or reseat as in valves.

To do this job yourself you need a gear puller and a vice and bench...that's all.

There is a u tube video kicking about that shows it step by step.

Even a mug mechanic (like me ) can do it.

P.S. Go buy the CORRECT OIL as indicated on the manufacters plate attached to g/box.

Oil I use :- TOTAL 30 SAE MONOGRADE - This is what I use in the gearbox/engine. Also use it in my Toyota Landcruiser truck.
Comes in a nice clean big orange plastic drum - buy it in bulk and save.

Good luck, if you need any other help come back to T.F. as there's a great bunch of guys here loaded with firsthand experience.

Yes is the same fault i think slips in gear mor throttle it drops in with a big wake from the prop, mine is in a 55ft canal boat will pull the box out hopefully today will be pulling the engine soon aswell as blow by is awfull but hasn't been run for over 7years !

Thanks for all the replys as had put the prob on a few forums with 0 response !

Canveysteve is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program

All times are GMT -5. The time now is 04:18 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012