Yanmar 2QM15: How can I keep it running forever? - Page 4 - SailNet Community
LinkBack Thread Tools
post #31 of 33 Old 05-13-2013
Just another Moderator
Faster's Avatar
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 19,004
Thanks: 152
Thanked 525 Times in 499 Posts
Rep Power: 10
Re: Yanmar 2QM15: How can I keep it running forever?

Whether to use ATF or 30wt oil will depend on the actual tranny mated to your engine. As mentioned above find out what tranny you've got.. read the nameplate; it should specify.


1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #32 of 33 Old 05-13-2013
Senior Member
casey1999's Avatar
Join Date: Oct 2010
Location: HI
Posts: 3,550
Thanks: 23
Thanked 53 Times in 51 Posts
Rep Power: 7
Re: Yanmar 2QM15: How can I keep it running forever?

Originally Posted by weephee View Post
I have a 2QM15 which I'm going to replace my A4 with. I had no engine history so I had the head rebuilt and some other work done. My manual says to use ATF in the clutch housing which I have done. I've started the engine on a skid but not in the boat yet. Should I replace the ATF with SAE30. I put diesel SAE 30 in the crank case.
Do not run until you check the name plate on the transmission.

The Yanmar manuals give the wrong transmission oil in many cases as the engine may be mated to a different transmission. Triple check before running.
casey1999 is offline  
Quote Quick Reply Share with Facebook
post #33 of 33 Old 05-13-2013
Senior Member
bristol299bob's Avatar
Join Date: Apr 2011
Location: Oriental NC
Posts: 311
Thanks: 96
Thanked 19 Times in 13 Posts
Rep Power: 7
Re: Yanmar 2QM15: How can I keep it running forever?

I'd say it depends on the transmission that's bolted on to that 2qm15. If you have the Kanzaki/Hurth transmission then you should use ATF. My 2qm20 came original with a kanzaki-hurth KBW10 and I believe your 2qm15 came with one as well.

Of course you may have an after market tranny installed. Most folks seem to go with TwinDisc models when the old KBW10 gives up the ghost. They are a bolt on replacement ... they don't use ATF.

Bottom line is to check the plate on your transmission.

1977 Bristol 29.9
Hull #5
Oriental NC
bristol299bob is offline  
Quote Quick Reply Share with Facebook

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
2QM15 Yanmar weephee Gear & Maintenance 5 04-06-2013 08:15 PM
Yanmar 2GM or 2QM15...? marinesniper Gear & Maintenance 20 03-10-2012 12:47 AM
Yanmar 2QM15 sundownersc Diesel 11 02-09-2012 09:21 AM
Yanmar 2QM15 repairtime Gear & Maintenance 7 12-09-2011 04:40 AM
Yanmar 2QM15 rpowell Gear & Maintenance 3 01-10-2002 08:26 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome