Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 28-10-2015, 21:23   #1
Registered User

Join Date: Sep 2014
Location: AUSTRALIA
Boat: DUNCANSON 40' PILOTHHOUSE
Posts: 24
Volvo Penta s120c replacement

I have a VP S120C sail drive and am wondering if anyone can tell me whether or not a VP 120B would be a comparable replacement, I'm not sure if they have the same gear ratio?
Any info would be appreciated thanks.
__________________

__________________
Duncanson40 is offline   Reply With Quote
Old 29-10-2015, 04:05   #2
Registered User

Join Date: Mar 2011
Location: The Netherlands
Boat: Victoire 1122
Posts: 107
Re: Volvo Penta s120c replacement

Quote:
Originally Posted by Duncanson40 View Post
I have a VP S120C sail drive and am wondering if anyone can tell me whether or not a VP 120B would be a comparable replacement, I'm not sure if they have the same gear ratio?
Any info would be appreciated thanks.
I think you need to re-asses the drive you currenty have as the range of drives Volvo made/makes is
120S-A, 120S-B, 120S-D, 120S-E, MS25S-A, MS25SR-A
130S-A, 130S-B, 130SR-A, 130SR-B
150S-A, 150S-B, 150SR-A, 150SR-B

In general the last character in the type number tells you the revision level of the drive, so the last modification they did for the S120 is E. Revision C never made it to the sales department as far as I can tell.
The ratio is printed on the type-plate on the transmission as they could be delivered with either 1:2.19 or 1:2.43 or thereabout. It all depends on the max-rpm of the engine that sits in front. 3200 => 1:2.19 and 3600 => 1:2.43

Most S120 drives were supplied with the 200x series and most MS25S were supplied with the 20x0 series. The new D1-xx and D2-xx series are supplied with the 130 or 150 series.

Hope that helps.
__________________

__________________
aluijten is offline   Reply With Quote
Old 29-10-2015, 06:16   #3
Registered User

Join Date: Nov 2013
Location: Slidell, La.
Boat: Morgan Classic 33
Posts: 1,102
Re: Volvo Penta s120c replacement

Quote:
Originally Posted by Duncanson40 View Post
I have a VP S120C sail drive and am wondering if anyone can tell me whether or not a VP 120B would be a comparable replacement, I'm not sure if they have the same gear ratio?
Any info would be appreciated thanks.
I beg to differ with aluijten, because I have an S120C in the shop. Attached are pictures of the serial number tag, which clearly show it as an S120C ratio 2.24/1.

And to be a little capitalistic about if, though we're half a world away, it's for sale for 500.00 or best offer. It's been tested, on the engine it's seen mounted on in the pictures, and shifts and runs to full rpm, forward and reverse, on the engine on the stand, but obviously I can't vouch for what it will do under load. I did load it a little with a block of wood pressed against the shaft when in gear, stayed in gear and made no difference in gear train sound. Can't tell about seals either, but there was no oil leaking out anywhere. The rubber boot looks new,(though it should probably be replaced), and it comes with a new clamping ring.
Attached Thumbnails
Click image for larger version

Name:	120c.jpg
Views:	162
Size:	89.8 KB
ID:	111787   Click image for larger version

Name:	sd1.jpg
Views:	304
Size:	214.8 KB
ID:	111788  

Click image for larger version

Name:	sd2.jpg
Views:	459
Size:	219.2 KB
ID:	111789  
__________________
jimbunyard is online now   Reply With Quote
Old 29-10-2015, 06:36   #4
Registered User

Join Date: Mar 2011
Location: The Netherlands
Boat: Victoire 1122
Posts: 107
Re: Volvo Penta s120c replacement

Quote:
Originally Posted by jimbunyard View Post
Attached are pictures of the serial number tag, which clearly show it as an S120C ratio 2.24/1.
Fascinating, Maybe send it back to VP, they may not be aware of it :
Volvo Penta Drives & Transmissions - MarinePartsEurope.com

I'm guessing a bit but it may actually be a A revision from the looks of it. They may have changed the type number logic since then.
But I stand corrected

I have good experiences with the VP saildrives. It's only the wear on the propshaft where the seals are located that can cause issues (water ingress).
But these days you can buy these sleeves from SKF that make the repair much simpler.

I like them because of absence of shaft vibration and contact noise of the rotating shaft. I hate them for changing the drive bellow (have had 7 sessions doing that the past years).
__________________
aluijten is offline   Reply With Quote
Old 29-10-2015, 12:39   #5
Registered User

Join Date: May 2015
Location: Whangarei
Boat: Bavaria 38 Cruiser, 12meters, 2004
Posts: 109
Re: Volvo Penta s120c replacement

This may not be all that helpful if you have already removed the saildrive, but otherwise here is a video of saildrive removal and replacement of bellows on a D2-55 and MS-25S
__________________
Kerry1 is offline   Reply With Quote
Old 30-10-2015, 17:49   #6
Registered User

Join Date: Sep 2014
Location: AUSTRALIA
Boat: DUNCANSON 40' PILOTHHOUSE
Posts: 24
Re: Volvo Penta s120c replacement

Totally agree as the plate on mine clearly has S 120 C, stamped on it
__________________

__________________
Duncanson40 is offline   Reply With Quote
Reply

Tags
men, penta, volvo

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
Volvo Penta 130S-B Sail Drive Lower Seal Replacement Cotemar Propellers & Drive Systems 24 24-02-2016 09:58
Volvo Penta S120C Workshop Manual rclark Engines and Propulsion Systems 36 06-05-2015 06:42
SS Volvo Penta Replacement Exh. Ellbow deblen Engines and Propulsion Systems 1 14-12-2014 13:40
Volvo Penta 120 SE Saildrive Cone Replacement Magnum Engines and Propulsion Systems 19 14-11-2013 16:41
Volvo-Penta MD3B GordMay Engines and Propulsion Systems 6 14-01-2004 23:37



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 22:09.


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.