Boat Design Forums  |  Boat Design Directory  |  Boat Design Gallery  |  Boat Design Book Store  |  Thanks to Our Site Sponsors

Go Back   Boat Design Forums > Design > Propulsion > Diesel Engines
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read Most Recent Posts Gallery Images Search

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 06-21-2010, 01:02 PM
phiphitdi phiphitdi is offline
Junior Member
 
Join Date: Nov 2008
Rep: 10 Posts: 5
Location: FRANCE
gearbox technodrive TM345A rotate in neutral

Hello everybody

I have baught the use boat (ARVOR190) of my dream with inboard engine VW SDI 50 and the gearbox is a Technodrive TM345A .I have a very strange issue in neutral the propeller and the shaft at the output of the gearbox are spinning very very slowly .The engine has ran 60 hours in 5 years .I haven't put a piece of wood in the propeller to see if there is force on it

Have you an idea about this trouble ?

Thanks in advance for your answer
Reply With Quote


  #2  
Old 06-21-2010, 03:17 PM
marshmat's Avatar
marshmat marshmat is offline
Senior Member
 
Join Date: Apr 2005
Rep: 2006 Posts: 4,132
Location: Ontario
This one? (spec sheet http://www.technodrive.it/italy/inve...df/TM_345A.pdf )

Looks like it has hydraulically operated clutches... perhaps one of them is dragging very slightly. How fast is the shaft spinning (very slowly = 1 rpm, 5 rpm, 60 rpm,...?), is it spinning in forward or reverse, and is it transmitting significant torque? (I wouldn't advise sticking wood in the prop, but holding a piece of wood against the shaft inside the boat might give you an idea of whether or not it's easily stopped- be careful!!!)
Reply With Quote
  #3  
Old 06-21-2010, 03:50 PM
phiphitdi phiphitdi is offline
Junior Member
 
Join Date: Nov 2008
Rep: 10 Posts: 5
Location: FRANCE
thanks for your answer

Your spec sheet is the good one .How does it work an hydraulically operated clutches ?
It is spinning slowly in neutral position .I will hold a piece of wood against the shaft to see if there is torque .Thanks for the advice
Reply With Quote
  #4  
Old 06-22-2010, 04:26 AM
CDK's Avatar
CDK CDK is offline
retired engineer
 
Join Date: Aug 2007
Rep: 1758 Posts: 2,934
Location: Adriatic sea
This is normal behavior caused by whirling of the oil in the gearbox, especially at low temperatures or when the oil cooling option is installed.

Make sure the oil level is correct and the color is red. Technomarine gearboxes use ATF, not engine oil.
__________________
cogito, ergo sum (Descartes' credo)
Reply With Quote
  #5  
Old 06-28-2010, 12:55 PM
phiphitdi phiphitdi is offline
Junior Member
 
Join Date: Nov 2008
Rep: 10 Posts: 5
Location: FRANCE
I am not sure that all Technomarine gearbox use ATF oil , I have found on the net the user manual of my gearbox TM345A and the oil is Api cd sae 20w40
http://www.dieselpowersweden.se/imag...raph/28493.pdf
I have done the test to evaluate the torque on the propeler shaft ,I could stop the shaft with my hand .I agree with you the oil is probably to thick or cold
Reply With Quote


  #6  
Old 06-28-2010, 03:32 PM
CDK's Avatar
CDK CDK is offline
retired engineer
 
Join Date: Aug 2007
Rep: 1758 Posts: 2,934
Location: Adriatic sea
If the manual states that, I was wrong. My 2007 manual covers several types from small to large, all using ATF, but does not include the TM345A.
__________________
cogito, ergo sum (Descartes' credo)
Reply With Quote
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Technodrive Tmc10 zorton01 Propulsion 1 04-24-2009 04:55 AM
Won't go out of neutral tomjohnson Propulsion 1 10-14-2008 01:16 PM
Stuck in Neutral RHaan Sterndrives 5 04-26-2007 11:36 PM
Rotate pulleys using gravity. Jigar111 Propulsion 18 12-02-2006 12:12 AM
wrong way counter rotate yotphix Outboards 9 11-23-2006 11:48 PM


All times are GMT -4. The time now is 04:25 AM.


Powered by: vBulletin Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Web Site Design and Content Copyright ©1999 - 2014 Boat Design Net