 |
29-01-2010, 11:03
|
#1
|
Registered User
Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
|
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
|
|
|
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.
|
|
|
29-01-2010, 11:15
|
#3
|
Registered User
Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
|
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.
|
|
|
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.
|
|
|
29-01-2010, 11:26
|
#5
|
Registered User
Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
|
What would the repower cost roughly if i went to the 2YM15? Thanks again for the help
|
|
|
29-01-2010, 11:29
|
#6
|
Registered User
Join Date: Jun 2005
Posts: 1,901
|
Quote:
Originally Posted by NautiHippie
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.
|
|
|
29-01-2010, 11:40
|
#7
|
Registered User
Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
|
It would be fully on the vendor not much mechanic in me
|
|
|
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.
|
|
|
29-01-2010, 11:42
|
#9
|
Registered User
Join Date: Jun 2005
Posts: 1,901
|
Quote:
Originally Posted by NautiHippie
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.
|
|
|
29-01-2010, 11:49
|
#10
|
Registered User
Join Date: Jun 2005
Posts: 1,901
|
Quote:
Originally Posted by klem
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.
|
|
|
29-01-2010, 13:13
|
#11
|
Registered User
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'
|
|
|
01-02-2010, 06:11
|
#12
|
Registered User
Join Date: Sep 2008
Location: Florida Keys
Boat: s/v Dharma and s/v This End Up!
Posts: 43
|
I'm going to wait till the weather is better later on this week then I'll sail down and check him out. Thanks!
|
|
|
 |
Thread Tools |
Search this Thread |
|
|
Display Modes |
Rate This Thread |
Linear Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Advertise Here
Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
Vendor Spotlight |
|
|