The C-Brats Forum Index
HomeForumsMy TopicsCalendarEvent SignupsMemberlistOur C-DorysThe Brat MapPhotos

Cracked! - Need a lower unit for Honda BF40 (1997)
Goto page Previous  1, 2, 3
 
Post new topic   Reply to topic    The C-Brats Forum Index -> Motor Control Systems
View previous topic :: View next topic  
Author Message
Wood Zeppelin



Joined: 09 Feb 2016
Posts: 300
City/Region: Seattle
State or Province: WA
C-Dory Year: 1997
C-Dory Model: 22 Angler
Vessel Name: C-Creature
Photos: Childhood Dream
PostPosted: Fri Nov 24, 2023 6:47 pm    Post subject: Reply with quote

thataway wrote:
You can get a parts diagram for your motor by google. That will tell about the bolts.

You will most likely have to go to salvage yards or E bay to find the "used but in good shape" lower unit. You should always do a run out dial caliper on one of these to assure that the prop shaft is not damaged. If it is out of true, send it back.


Yes, thanks for that reminder!

About the "bolts", let me refine my question... what I am wondering is: if there is an updated design on later models that replaces the internally threaded bearing retainer nut (with two bolts).. Because if so, I'd want to get one of those lower units? Anyone know?

_________________
James Salay - Real Estate Broker / Investor, Engineer, Artist, Fisherman, Canyoneer, Outdoor Enthusiast






Current boats:

1997 22' Angler - "C-Creature"
1988 16' Angler - "E-fishn-C" (Project boat)
1997 16' Cruiser - "Wet-a-Net"

Also:
14.5' Drift Boat - "Wood Zeppelin"
Back to top
View user's profile Send private message Send e-mail
Wood Zeppelin



Joined: 09 Feb 2016
Posts: 300
City/Region: Seattle
State or Province: WA
C-Dory Year: 1997
C-Dory Model: 22 Angler
Vessel Name: C-Creature
Photos: Childhood Dream
PostPosted: Fri Nov 24, 2023 6:52 pm    Post subject: Reply with quote

For example, here is a diagram of one with the two bolts. But I don't know:

(a) what year did the design change
(b) Are these two-bolt models a bolt-on for my motor (1998)
(c) What does the "D" in BF40D stand for?


https://yumbo-jp.com/en/catalog/outboard/honda/0/BF40D+LRTA/43536/PROPELLER+SHAFT.html
Back to top
View user's profile Send private message Send e-mail
ssobol



Joined: 27 Oct 2012
Posts: 3368
City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
PostPosted: Sat Nov 25, 2023 11:14 am    Post subject: Reply with quote

Wood Zeppelin wrote:
...
(c) What does the "D" in BF40D stand for?

...l


"D" models are fuel injected.
Back to top
View user's profile Send private message
Hunkydory



Joined: 28 Mar 2005
Posts: 2656
City/Region: Cokeville, Wyoming
State or Province: WY
C-Dory Year: 2000
C-Dory Model: 22 Cruiser
Vessel Name: Hunkydory
Photos: Hunkydory-Jay-and-Jolee
PostPosted: Sat Nov 25, 2023 12:02 pm    Post subject: Reply with quote

Wood Zeppelin wrote:
For example, here is a diagram of one with the two bolts. But I don't know:

(a) what year did the design change
(b) Are these two-bolt models a bolt-on for my motor (1998)
(c) What does the "D" in BF40D stand for?


https://yumbo-jp.com/en/catalog/outboard/honda/0/BF40D+LRTA/43536/PROPELLER+SHAFT.html




The design changes occurred in 2008 & the new design with the o-ring & 2 bolts vs the screw into case will not fit the older ones such as you have. Mainly the shifter connection using a smooth rod in the pre 2008 with a splined shaft shifter in the 2008 & up prevents the interchange. There could also be other changes made that could prevent it.

_________________
Jay and Jolee 2000 22 CD cruiser Hunkydory
I will not waste my days in trying to prolong them------Jack London
https://share.delorme.com/JuliusByers
Back to top
View user's profile Send private message Send e-mail
Wood Zeppelin



Joined: 09 Feb 2016
Posts: 300
City/Region: Seattle
State or Province: WA
C-Dory Year: 1997
C-Dory Model: 22 Angler
Vessel Name: C-Creature
Photos: Childhood Dream
PostPosted: Thu Nov 30, 2023 12:49 pm    Post subject: Reply with quote

Ah, thanks... Good to know. That leaves me thinking my best options are:

(1) reconditioned or new
(2) a used one (preferably closer to 2008)
(3) a used one from freshwater
Back to top
View user's profile Send private message Send e-mail
Wood Zeppelin



Joined: 09 Feb 2016
Posts: 300
City/Region: Seattle
State or Province: WA
C-Dory Year: 1997
C-Dory Model: 22 Angler
Vessel Name: C-Creature
Photos: Childhood Dream
PostPosted: Wed Feb 07, 2024 2:24 pm    Post subject: Reply with quote

srbaum wrote:
WZ,
Give a call to Atlantic Marine, they are wonderful people and truly Honda outboard experts. They specialize in selling and installing Honda's to the military, as well as to commercial and recreational boaters. They are also the go-to for rebuilt or new lower units.
www.atlanticmarineva.com


Thank you. I called them and they were significantly more helpful that some of the local dealers in my area! I would also highly recommend them!
Back to top
View user's profile Send private message Send e-mail
Wood Zeppelin



Joined: 09 Feb 2016
Posts: 300
City/Region: Seattle
State or Province: WA
C-Dory Year: 1997
C-Dory Model: 22 Angler
Vessel Name: C-Creature
Photos: Childhood Dream
PostPosted: Wed Feb 07, 2024 2:29 pm    Post subject: Reply with quote

Hunkydory wrote:
Wood Zeppelin wrote:
For example, here is a diagram of one with the two bolts. But I don't know:

(a) what year did the design change
(b) Are these two-bolt models a bolt-on for my motor (1998)
(c) What does the "D" in BF40D stand for?


https://yumbo-jp.com/en/catalog/outboard/honda/0/BF40D+LRTA/43536/PROPELLER+SHAFT.html




The design changes occurred in 2008 & the new design with the o-ring & 2 bolts vs the screw into case will not fit the older ones such as you have. Mainly the shifter connection using a smooth rod in the pre 2008 with a splined shaft shifter in the 2008 & up prevents the interchange. There could also be other changes made that could prevent it.


Hi HunkyDory,

The guys at Atlantic Marine confirmed that these design changes preventing them from fitting the older motors happened in 2008, but they said the fitment changes were on the BF75's 90's, 115's... But NOT on the BF40's and BF50's. They said they swap newer units onto older 40/50 motors quite often. Is it possible you were referring to these larger motors? I want to double check because once I order a new unit I don't think I can send it back..!
Back to top
View user's profile Send private message Send e-mail
Hunkydory



Joined: 28 Mar 2005
Posts: 2656
City/Region: Cokeville, Wyoming
State or Province: WY
C-Dory Year: 2000
C-Dory Model: 22 Cruiser
Vessel Name: Hunkydory
Photos: Hunkydory-Jay-and-Jolee
PostPosted: Wed Feb 07, 2024 4:46 pm    Post subject: Reply with quote

James, I apologize for giving you incorrect information, as itís worse than none. After rechecking back through this today it does appear your information from Atlantic Marine is correct & the changes werenít relevant to the Honda 40 & 50. Either, I made the wrong interpretation of information I read or what I read was wrong, when doing my parts research for the water pump exchange on my replacement Honda 60ís, following doing the same on the previous old Honda 40ís.

Jay
Back to top
View user's profile Send private message Send e-mail
Wood Zeppelin



Joined: 09 Feb 2016
Posts: 300
City/Region: Seattle
State or Province: WA
C-Dory Year: 1997
C-Dory Model: 22 Angler
Vessel Name: C-Creature
Photos: Childhood Dream
PostPosted: Wed Feb 07, 2024 5:38 pm    Post subject: Reply with quote

Jay,

Thank you. As it turns out, you've helped.. because if you hadn't replied to my post in the first place, I would not have asked this question to the guys at Atlantic Marine. So by putting our heads together here on the board and contributing from our experiences, we eventually get this kind of valuable information!

It's good to now know a solution to this problem is to swap in a later model lower unit, for this horsepower range and vintage of motors.

Thanks again!
James
Back to top
View user's profile Send private message Send e-mail
T.R. Bauer



Joined: 17 Nov 2007
Posts: 1726
City/Region: Wasilla
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Vessel Name: C-Whisperer
PostPosted: Thu Feb 08, 2024 11:54 am    Post subject: Reply with quote

It's ironic this came up again. I was just at the Honda dealer dreaming of new outboards and saw the 40 and 50 hp outboards still have lower units just like my 30 year old ones. I don't know if they are the same, but they sure do look the same. BTW new outboards are flipping expensive!
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    The C-Brats Forum Index -> Motor Control Systems All times are GMT - 5 Hours
Goto page Previous  1, 2, 3
Page 3 of 3

 
     Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum



Page generation time: 0.0417s (PHP: 66% - SQL: 34%) - SQL queries: 28 - GZIP disabled - Debug on