Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 29-01-2010, 11:03   #1
Registered User
 
NautiHippie's Avatar

Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
Images: 3
Rebuild

Hi All,

We have a Tiara S2 9.2 that needs an engine rebuild. It has a Yanmar 2QM15 2 Cylinder engine in it, prop and shaft are perfect. Some seals are bad, the injectors are shot, and a rocker arm is bad, and we are getting ready for an extended cruise and would like to have peace of mind. What would a ball park figure be for this rebuild? I'm figuring $2000 - $3000 is this about right? Also if you know of anyone good in the Miami area please let me know!

P.S. I already have it torn down to the block but don't have the mechanic skills required to rebuild


Thanks,

Nauti
__________________

__________________
NautiHippie is offline   Reply With Quote
Old 29-01-2010, 11:10   #2
Registered User

Join Date: Jun 2005
Posts: 1,901
skip the rebuild, repower it. The new engine will be lighter, more fuel efficient and sound.
__________________

__________________
never monday is offline   Reply With Quote
Old 29-01-2010, 11:15   #3
Registered User
 
NautiHippie's Avatar

Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
Images: 3
If I repower will be doubling the cost? As I would probably need a new shaft, prop, and it is in a small space under the chart table so size is a factor. What engine would you suggest if repowering, the 2QM15 seems to have more than enough power to push the boat.
__________________
NautiHippie is offline   Reply With Quote
Old 29-01-2010, 11:24   #4
Registered User

Join Date: Jun 2005
Posts: 1,901
you won't need a new shaft. You'll need a new prop, IIRC the QM uses a left hand prop. Most everything new is right hand.

A 2YM15 Yanmar is smaller than the 2QM15 you have.
__________________
never monday is offline   Reply With Quote
Old 29-01-2010, 11:26   #5
Registered User
 
NautiHippie's Avatar

Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
Images: 3
What would the repower cost roughly if i went to the 2YM15? Thanks again for the help
__________________
NautiHippie is offline   Reply With Quote
Old 29-01-2010, 11:29   #6
Registered User

Join Date: Jun 2005
Posts: 1,901
Quote:
Originally Posted by NautiHippie View Post
What would the repower cost roughly if i went to the 2YM15? Thanks again for the help
it depends on how much you are willing to do yourself and have the ability. I don't know you and your mechanical aptitude.
__________________
never monday is offline   Reply With Quote
Old 29-01-2010, 11:40   #7
Registered User
 
NautiHippie's Avatar

Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
Images: 3
It would be fully on the vendor not much mechanic in me
__________________
NautiHippie is offline   Reply With Quote
Old 29-01-2010, 11:41   #8
Registered User

Join Date: Jan 2010
Location: Gloucester, MA
Boat: CS 36t
Posts: 387
I would call around to the local rebuilders and see what it would cost. I have not rebuilt an engine that small so I can't give you an accurate price but if you pull the engine and strip all the peripherals, $3k should be in the ball park.

Regarding repowering versus rebuilding, rebuilding is a lot easier and cheaper. A repower requires new motor mounts, exhaust, fuel plumbing, raw water plumbing, often changes to the throttle, sometimes a new shaft, often a new prop and all of those things take a lot of time. If the current engine does its job well and isn't underpowered or noisy, I would stick with it.
__________________
klem is offline   Reply With Quote
Old 29-01-2010, 11:42   #9
Registered User

Join Date: Jun 2005
Posts: 1,901
Quote:
Originally Posted by NautiHippie View Post
It would be fully on the vendor not much mechanic in me
I can't say much then. I'm not familiar with the market in the Keys. There are some reputable Yanmar guys down there.
__________________
never monday is offline   Reply With Quote
Old 29-01-2010, 11:49   #10
Registered User

Join Date: Jun 2005
Posts: 1,901
Quote:
Originally Posted by klem View Post
Regarding repowering versus rebuilding, rebuilding is a lot easier and cheaper. A repower requires new motor mounts, exhaust, fuel plumbing, raw water plumbing, often changes to the throttle, sometimes a new shaft, often a new prop and all of those things take a lot of time. If the current engine does its job well and isn't underpowered or noisy, I would stick with it.

A repower requires new motor mounts, - all the engine companies include new mounts

exhaust, - typically the hose is the same size

fuel plumbing, - typically the same size, age related replacement is different.

raw water plumbing, - again typically the same size

often changes to the throttle, - rarely required

sometimes a new shaft, - more often no.

often a new prop, again, only if it's a rotation change or major HP change.
__________________
never monday is offline   Reply With Quote
Old 29-01-2010, 13:13   #11
Registered User
 
r.furborough's Avatar

Join Date: Oct 2008
Location: Norfolk, VA
Boat: Freedom 32 (Hoyt)
Posts: 223
Try contacting Luis Garcia at Marathon Diesel He is a Yanmar dealer and can offer advice on whether your existing engine is rebuildable, rebuild it if it is OK or offer to supply and install the latest Yanmar replacement.
__________________
------------------------------------------------
the memories of a man in his old age, are the dreams of a man in his prime
Pink Floyd - 'Free Four'
r.furborough is offline   Reply With Quote
Old 01-02-2010, 06:11   #12
Registered User
 
NautiHippie's Avatar

Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
Images: 3
I'm going to wait till the weather is better later on this week then I'll sail down and check him out. Thanks!
__________________

__________________
NautiHippie is offline   Reply With Quote
Reply

Tags
rebuild

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
YSE12 Engine Rebuild Scaffi S28 Engines and Propulsion Systems 4 10-09-2009 07:14
SL windlass rebuild Islandmike Construction, Maintenance & Refit 11 19-02-2008 11:58
After rebuild - running in sildene Engines and Propulsion Systems 20 16-08-2007 00:41
Stringer rebuild...many ?? never monday Powered Boats 9 05-09-2006 11:34
Refrigerator box Rebuild Strygaldwir Construction, Maintenance & Refit 8 03-06-2005 14:39



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 13:36.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.