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 > Inboards
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 08-10-2011, 04:18 PM
partgypsy partgypsy is offline
Junior Member
 
Join Date: Jan 2007
Rep: 10 Posts: 28
Location: 20744
gear ratio change

I understand the idea of faster and slower engines needing different drive ratios so the propeller rotates at the optimal speed. How does one change the drive ratio of the transmission? Is it done by this swapping a gear in the transmission? I am replacing a gas engine with a diesel engine. The diesel engine will rotate at about 1/2 half the speed of the gas engine. The transmissions will connect with either engine. What do I have to modify? I do know that there will be some tinkering with the propellers, but I need to understand the gear box aspect first.
Thanks!!
__________________
Lukey
http://www.lukeysboats.com
Reply With Quote
  #2  
Old 08-10-2011, 10:18 PM
gonzo's Avatar
gonzo gonzo is offline
Senior Member
 
Join Date: Aug 2002
Rep: 1493 Posts: 7,447
Location: Milwaukee, WI
What make and model of gearbox do you have and reduction gear if any?
__________________
Gonzo
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
HBW-5 Gear ratio kvk Diesel Engines 4 05-30-2010 06:52 PM
Gear Ratio vs speed cheddar Inboards 6 07-07-2009 02:10 PM
appropriate gear ratio gharai Propulsion 1 10-03-2008 09:05 AM
Gear Ratio? mossy Sterndrives 2 08-19-2007 04:31 PM
gear ratio question captword Boat Design 8 04-19-2005 05:27 AM


All times are GMT -5. The time now is 01:19 PM.


Powered by: vBulletin Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Web Site Design and Content Copyright ©1999 - 2012 Boat Design Net