Author Topic: leak from primary case  (Read 1143 times)

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Offline gio2013

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leak from primary case
« on: November 15, 2013, 07:03:15 PM »
I have a oil leak coming from the back of the primary case is there anything that I can do or does it need to be stripped down and a new seal put in.
I have a 2009 Heritage.
Thanks

Offline McClean

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Re: leak from primary case
« Reply #1 on: November 15, 2013, 07:48:26 PM »
:)

I have NFI.

Richo would be your go to guy for that one.

He's forgotten more about bikes than most people will ever know.

I'll bring this thread to his attention and see if he can steer you in the right direction and again, welcome.

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And face the fact that I'm a circle in a world full of squares

Offline Hardman

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Re: leak from primary case
« Reply #2 on: November 16, 2013, 09:41:36 AM »
:)

Well, been a long time since I serviced a bike but from what I know it's best to strip and replace the seal.

As Jamie said either Richo or Dready may well have a better idea.

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Offline Richo

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Re: leak from primary case
« Reply #3 on: November 16, 2013, 12:23:21 PM »
G'day mate !


I'd want to be sure the leak was coming from the primary seal first. If it is then bite the bullet and replace it, its the only way to be rid of it forever. It is however possible to dodge it up by using a quality synthetic lubricant as they contain an additive to make seals expand. You could try HD's Syn3 or an equivalent, you'll know if the leak slows down by 1000 klicks or so.

The other things it could be is a gasket or the tiny O-ring on your primary drain plug.


What sort of primary oil are you running ?  I ha a retired HD mechanic from the states put me onto an older grade of ATF for the primary. You want a D or F grade and not the dexron as the old grades don't have friction modifiers that can make your clutch slip. I've run the ATF on my '05 nightrain since the warranty expired 6 yrs ago and never had a problem. In fact the clutch action is excellent andI see fuck all wear when I change the oil out (change all your oils every 5000 klicks).

The old mechanic mate got over 100,000 miles on his old glide's primary using nothing but ATF and its still running strong on all the original chain / clutch pack / etc.


Cheers, Richo.
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Offline McClean

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Re: leak from primary case
« Reply #4 on: November 17, 2013, 05:27:42 AM »
As I said, Richo is your go to guy when it comes to bikes... 

If you happen to have any computer problems, come to me or Chris but Richo is our resident bike expert.  :-*
Where everything out here ain't what it seems
When I'm down to nothing, I just go ahead and dream
And face the fact that I'm a circle in a world full of squares

Offline Skipper

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Re: leak from primary case
« Reply #5 on: April 09, 2015, 12:13:31 PM »
Richo is the man.   ::X  If his suggestions do not fix your issue.....you might torque the outer primary bolts to 21 inch pounds....just another thought... 
Those who would trade their essential liberties for a little safety deserve neither safety nor liberty. (or something like that)