150HP Diesel Re-power Questions - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel
 Not a Member? 

Diesel This is a forum dedicated to diesel engines and their applicable accessories.


Reply
 
LinkBack Thread Tools
  #1  
Old 09-12-2010
Member
 
Join Date: Oct 2006
Location: St Thomas, USVI
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
kaakre is on a distinguished road
150HP Diesel Re-power Questions

Will be re-powering my ketch in a couple of months with a 135-175HP 6 cylinder natural diesel. Would prefer 150HP or greater. Transmission will be an axial 2:1. Current engine is a dead 165HP Fiat with Velvet drive.

Prefer a new engine but a credible rebuild could work.

Three questions:

1. Will start making the calls to engine peddlers next week. Have Gulf Marine, Trans Atlantic Diesel, Gold Coast, and Northern Equipment on my list. Any other recommendations? Anywhere in the US is OK.

2. The old engine was a hard mount-- bolted steel to steel. The driveshaft it mates to is fixed and cannot be modified. When I go to rubber mounts, the engine will crawl around and stress the shaft. Looked at CentaFlex coupler options but the price is breathtaking -- about $2400. Is there another way to accommodate the movement of the engine -- a short jack shaft with U joints etc -that anyone has seen that will work well?

3. Any engine or transmission recommendations would be helpful as well.

Thanks,

Keith

Last edited by kaakre; 09-12-2010 at 05:49 PM. Reason: spelling
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 09-12-2010
Senior Member
 
Join Date: May 2006
Posts: 201
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
r.furborough is on a distinguished road
Beta Marine are just launching a new 150HP diesel that may be of interest or are you looking at rebuilds? Engine mounting brackets and compatibility with your existing configuration will be a big issue, this is something most engine suppliers will not help you with and could be very frustrating if you lack the skills to work out the geometry and build mounts.

Regarding transmissions, I would rebuild your Velvet Drive as they are an 'axial' transmission, even with reduction. Most new transmission will be 'drop center' to allow for the reduction gearing. This means you will probably have to modify your engine beds to raise the engine by the amount of the 'drop center'

(drop center means that the output shaft of the transmission is below the level of the input shaft, this can be greater than a couple of inches)

Last edited by r.furborough; 09-12-2010 at 09:24 PM. Reason: Additional comments on Geometry
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Diesel outboard questions flyfisher Gear & Maintenance 3 08-07-2010 03:41 PM
Two questions about solar power and MPPT regulators ArgleBargle Gear & Maintenance 0 02-15-2009 10:47 PM
Diesel Re-Power Questions 1970Columbia34 Gear & Maintenance 14 01-28-2009 02:14 AM
Re-power with universal diesel bayme Gear & Maintenance 3 01-25-2009 10:41 AM
Diesel questions rperret Gear & Maintenance 21 08-07-2008 12:51 PM


All times are GMT -4. The time now is 03:07 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.