Author Topic: Final Drive Fill Plug  (Read 3685 times)

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Offline Slybones

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Final Drive Fill Plug
« on: December 11, 2008, 12:33:00 am »
The big round one in the middle. Looks like I cracked mine while doing the 7th gear mod.     If you have been following the summers adventures, I went out into the garage the other day and found gear oil on the garage floor. I basicaly went friggin nuts. Cussed and swore for a good 1/2 hour at least.    Finally went out there a few minuts ago to see the fill plug did not look like it was seating well. So I grabbed into it and the outer cover came right off in my hand. Which of course is not holding the o-ring in place very well.      2003 Concours, 46K  COG #6953  IBA 28004  http://mysite.verizon.net/slybones/Concours/connieMain.htm  
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Offline Colin

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Final Drive Fill Plug
« Reply #1 on: December 11, 2008, 03:44:00 am »
Ouch!    Slybones that's real unfortunate..     At first I thought it was the casing that was broken, then I realized its just the pug.    Colin    Colin Prior  Cogmos Committee Chairman  Lake Forest Park WA  COG#7767    
« Last Edit: December 11, 2008, 03:46:00 am by colinp386 »
Colin Prior

Offline 2linby

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Final Drive Fill Plug
« Reply #2 on: December 11, 2008, 05:09:00 am »
Fred!    WTF! did you do!  AKA "2linby" That's 2-lin-by folks!  Northwest Area Director  COG #5539  AMA #927779  IBA #15034  TEAM OREGON MC Instructor    http://community.webshots.com/user/2linby  http://tinyurl.com/njas8 (IBA BunBurner Gold Trip)  http://tinyurl.com/lwelx (Alaska trip)
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Offline Steve in Sunny Fla

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Final Drive Fill Plug
« Reply #3 on: December 11, 2008, 10:06:00 am »
 that's just a cap basically, like the oil fill cap. because it's hexed I guess the brain says "tighten". And I guess becuase it's a big hex the brain says "tighten it alot".      Nope!    But then I'm a little late for this, huh? Steve   Shleper of the 7th gear unit and performance exhaust cam sprockets.       My bike - "SHOODABEN" - 1109cc's of what an 04 concours "shoodaben"!
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Offline Slybones

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Final Drive Fill Plug
« Reply #4 on: December 11, 2008, 10:16:00 am »
Yeah its an easy fix. I posted for your amusement. I figure its fate just ####ing with me. Given my summers adventures with leaks, I pretty much went nuts when I walked out to the garage and found gear oil on the floor. I think the gods of fate were looking down and laughing their a** off.  2003 Concours, 46K  COG #6953  IBA 28004  http://mysite.verizon.net/slybones/Concours/connieMain.htm  
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Offline smithr1

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Final Drive Fill Plug
« Reply #5 on: December 11, 2008, 11:39:00 am »
I think someone added a 1 in front of your torque spec.  I think its like 12 not 112 lb  :8o:  ----------------------------------  I will answer any question.  It is up to you to figure out if I should have.    <p align="left">My Photos<br
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Offline Slybones

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Final Drive Fill Plug
« Reply #6 on: December 11, 2008, 07:26:00 pm »
$12  2003 Concours, 46K  COG #6953  IBA 28004  http://mysite.verizon.net/slybones/Concours/connieMain.htm  
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Offline Sahagan

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Final Drive Fill Plug
« Reply #7 on: December 12, 2008, 02:16:00 am »
Look just below your exhaust pipes at their exit from the head, and you'll see another one just like it....I broke it in the process of replacing the 'O' ring, which had been pinched during assembly at the factory, leading to a hard to find oil leak.    Replacement cost less than half your quoted 12 bucks nowadays. On the other hand, the 'O' ring cost $3.55 from Kawasaki, while my downtown hardware store sold me a spare for .49 cents.    Sahagan  

Offline Bill Hookman

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Final Drive Fill Plug
« Reply #8 on: December 12, 2008, 06:23:00 pm »
Exactly what happened to mine a couple months ago.  And, I didn't torque it down all that tight.    I was real careful tightening up the replacement (plus I added some locktite, so I wouldn't have to worry about it backing out with less torque applied) and I can still see some metal stress around the "nut" where the other one broke.  I searched all over and could not find a torque setting for it.  
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Offline Brett0769

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Final Drive Fill Plug
« Reply #9 on: December 12, 2008, 08:26:00 pm »
Will it accept torque similar to the oil drain plugs?  
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Offline Colin

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« Reply #10 on: December 12, 2008, 10:37:00 pm »
 
Quote
 Will it accept torque similar to the oil drain plugs?  
   Personally I would not recommend it.  Oil drain plugs: have a copper crush washer, not an o-ring, and are subjected to higher pressure of oil and temperature. I simply don't see the need to reef down on the drain bolt on the final drive. There is no pressure in there as the oil level is at the bottom of the threads and it does not get that hot, or subject to much vibration. As Steve says it has a big size but the need to tighten it down hard is non existent. Simply tighten by hand until the o-ring bites and snug it down. I had the same type of tappet covers on my 1975? Honda SS50 :) and broke many a cover until I learned better. And yes I snapped a few spark plugs too!   :blush:  Colin Prior  Cogmos Committee Chairman  Lake Forest Park WA  COG#7767  
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Offline Raycad

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Final Drive Fill Plug
« Reply #11 on: December 12, 2008, 11:02:00 pm »
From my previous Honda ST1100 Service Manual: Final gear case oil filler cap torque - 9 ft-lb. The Connie cap is very similar, so that's what I use for the Connie since 2005 and so far, no problem and no broken cap !  
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Offline Bill Hookman

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Final Drive Fill Plug
« Reply #12 on: December 12, 2008, 11:57:00 pm »
I've never stripped or had any problems with any oil drain plug on any vehicle.  I did not put anywhere close to the amount of torque on the final drive cap that I do on oil drain plugs when it broke.  I think that part of the problem is the cheap, crappy metal (aluminum?) the cap is made from.  
Bill Hookman  Columbus, OH

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Offline norm-9688

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Final Drive Fill Plug
« Reply #13 on: December 13, 2008, 01:42:00 am »
Just snug it,,turn it by hand till it bottoms and add a slight twist,,something like 1/16 of a turn if that,it should never come loose and I would NOT recommend locktite.     Oil drain plugs are almost the same,turn by hand till it stops and then MAYBE an 1/8 of a turn to crush the washer. I can use the washer 3-4 times before it needs to be replaced.  CT AAD  COG #7011-A  2003 Concours-Mary Ann  1995 Honda Nighthawk 750 wifes