QD12 shift rod O ring replacement.

Greg O.

Petty Officer 2nd Class
Joined
Jan 9, 2011
Messages
125
I am re-sealing the lower gear case on my QD12. How do I replace the o ring for the shift rod? Also any good suggetsions on removing the drive shaft seal, and the prop shaft seal? Should I use a sealer around the spaghetti seal, as well as the shaft seals?

Another question, should I use a thread sealer on the cylinder head bolts?
 

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racerone

Supreme Mariner
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Dec 28, 2013
Messages
37,972
Re: QD12 shift rod O ring replacement.

That o-ring can actually be replaced without removing the brass retainer.-----------Some will argue that it can not be done.------You could pull it out with a bolt after running a 5/16" tap in for 3 threads.----Or pull it out using 1/4" threaded rod with a filed down nut on it.
 

Greg O.

Petty Officer 2nd Class
Joined
Jan 9, 2011
Messages
125
Re: QD12 shift rod O ring replacement.

What do you use to get the old o ring out?
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: QD12 shift rod O ring replacement.

Well Im not sure if it can be taken out or not without removing the bushing, but it is so easy to remove the bushing Im not sure why you would want to try.

You can either buy a special tool for removing the bushing which works perfectly from the link I will post, or you can try to make one your own out of rod ground down. I have both. I much prefer Franks tool.

I add 3m 847 sealer around the circ of the seals, and the bushing, incase there are any imperfections in the casing. Also use it on the spaghetti seal, and the skeg bolt threads.

Cylinder head bolts get the OMC gasket sealing compound on them.

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Frank's Tools
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: QD12 shift rod O ring replacement.

Here is my home made rod, and the bushing/o ring removed.



 

64osby

Admiral
Joined
Jul 28, 2009
Messages
6,823
Re: QD12 shift rod O ring replacement.

HT - What gasket material do you use when cutting your own?
 

nwcove

Admiral
Joined
May 16, 2011
Messages
6,293
Re: QD12 shift rod O ring replacement.

lol...not sure what HT uses for gasket material, but some how, he has my missing pair of scissors!!! ;)
 

64osby

Admiral
Joined
Jul 28, 2009
Messages
6,823
Re: QD12 shift rod O ring replacement.

^^^ Funny, reminds me of my Admiral. "So that's where those are".

I made a seal removal tool from a 5/16" x 3.5" bolt. Ground off the threads and two edges off the head, then used a long rod to hit that.
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: QD12 shift rod O ring replacement.

I bought a roll of the cork gasket material at one time. I have since found it easier to buy them pre made. ;)
 

Greg O.

Petty Officer 2nd Class
Joined
Jan 9, 2011
Messages
125
Re: QD12 shift rod O ring replacement.

Thanks for all the help everyone. I will buy or make a tool on the lathe.
 
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