leak from backside of primary??
Thread Starter
|
Tourer
Joined: Nov 2013
Posts: 433
Likes: 18
From: Cheyenne, WY
leak from backside of primary??
Hey all,
I've noticed here a while ago that after a few hundred miles (not necessarily all at once) I get a couple drops of oil on the ground. It feels like is coming from the bottom of the primary, however both inner and outer primary gaskets were replaced by dealership around 2000 miles ago so I can't image that's it. And besides that if it just sits for a while there is no leak (had a few weeks of bad hail storms where it didn't get out much and there was no oil on the ground). I'm thinking maybe its coming from somewhere on the back side of the primary. (Maybe when the oil starts moving around it finds a spot not on the bottom of the primary). I'm planning on checking everything when I get a chance tonight but was hoping you guys might be able to point me in the right direction.
Thanks!
I've noticed here a while ago that after a few hundred miles (not necessarily all at once) I get a couple drops of oil on the ground. It feels like is coming from the bottom of the primary, however both inner and outer primary gaskets were replaced by dealership around 2000 miles ago so I can't image that's it. And besides that if it just sits for a while there is no leak (had a few weeks of bad hail storms where it didn't get out much and there was no oil on the ground). I'm thinking maybe its coming from somewhere on the back side of the primary. (Maybe when the oil starts moving around it finds a spot not on the bottom of the primary). I'm planning on checking everything when I get a chance tonight but was hoping you guys might be able to point me in the right direction.
Thanks!
Ultimate HDF Member
Joined: Apr 2014
Posts: 6,322
Likes: 2,500
From: Tennessee
Odds are, it's a primary seal leaking...Fairly easy fix and pretty common.
Keep your fingers crossed that it's not the mainshaft seal which is less common but a pain in the *** to fix sometimes.
The inner primary will have to come off to fix either of those.
To be perfectly honest, if it's just a few drops every now and then, I'd leave it alone and ride it like that, 'til it gets worse.
Keep your fingers crossed that it's not the mainshaft seal which is less common but a pain in the *** to fix sometimes.
The inner primary will have to come off to fix either of those.
To be perfectly honest, if it's just a few drops every now and then, I'd leave it alone and ride it like that, 'til it gets worse.
Thread Starter
|
Tourer
Joined: Nov 2013
Posts: 433
Likes: 18
From: Cheyenne, WY
I was planning on doing just that. Just keep riding until it gets worse or until its time for winter projects.
I do have the Extended service plan, but the dealership here claims that they would have to charge me shop time until they found out what was wrong and then contact ESP to see if its covered. Personally as long as it's not too expensive or overly complicated I would rather do it myself.
I do have the Extended service plan, but the dealership here claims that they would have to charge me shop time until they found out what was wrong and then contact ESP to see if its covered. Personally as long as it's not too expensive or overly complicated I would rather do it myself.
Last edited by wyotana; Jun 28, 2014 at 07:57 PM.
Thread Starter
|
Tourer
Joined: Nov 2013
Posts: 433
Likes: 18
From: Cheyenne, WY
Good thinking, I'll check there first.
Ultimate HDF Member
Joined: Apr 2014
Posts: 6,322
Likes: 2,500
From: Tennessee
I was planning on doing just that. Just keep riding until it gets worse or until its time for winter projects.
I do have the Extended service plan, but the dealership here claims that they would have to charge me shop time until they found out what was wrong and then contact ESP to see if its covered. Personally as long as it's not too expensive or overly complicated I would rather do it myself.
I do have the Extended service plan, but the dealership here claims that they would have to charge me shop time until they found out what was wrong and then contact ESP to see if its covered. Personally as long as it's not too expensive or overly complicated I would rather do it myself.
Take your time...Replace the shifter shaft seal while you're in there even if it's not leaking.
I replace the shifter shaft seal every time I have the inner primary off of a bike.
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,586
Likes: 6,435
From: Honah Lee
Clean it up and look starting high. It could be any number of things including the oil filter. The only thing anyone can guarantee it's not is the WY plate. There is more chance it is leaking from what a dealer does then before he worked on it. Actually cleaned up, a few drop leak is pretty hard to find. My air filter throws that much out, drips on the cam cover and runs down.
Last edited by Jackie Paper; Jun 28, 2014 at 08:14 PM.
Trending Topics
Outstanding HDF Member
Joined: Apr 2006
Posts: 2,555
Likes: 3
From: Clarksburg, PA
Hopefully your tranny mainshaft bearing is not going out.
Mine went out and took the seal, but it was a good sized leak.
I run gear lube in the tranny so it is easy to smell what is leaking. lol
What are you running in all holes? May be able to pinpoint whether tranny or primary.
Check out my thread on doing the tranny mainshaft bearing:
https://www.hdforums.com/forum/dyna-...-upgrades.html
Mine went out and took the seal, but it was a good sized leak.
I run gear lube in the tranny so it is easy to smell what is leaking. lol
What are you running in all holes? May be able to pinpoint whether tranny or primary.
Check out my thread on doing the tranny mainshaft bearing:
https://www.hdforums.com/forum/dyna-...-upgrades.html
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Ultimate HDF Member
Joined: Apr 2008
Posts: 5,384
Likes: 12
From: Out on Deranged
if it looks like it comes from the middle of the primary and the drain plug has drips on it then it is the inner primary mainshaft seal. the part is 25$ or so but the outer primary and inner primary have to come out, plus the compensating sprocket, the chain and the clutch pak and that means you need the inner primary bolts as well. Don't bother replacing metal gaskets they last and last.
The good news I have for you is that job is covered under warranty. Let them mess with it!
If your dealer changed those inner and outer gaskets he is a dumb-*** for not replacing the mainshaft seal while he was in there. Heck he most probably messed it up putting on the inner primary!
The good news I have for you is that job is covered under warranty. Let them mess with it!
If your dealer changed those inner and outer gaskets he is a dumb-*** for not replacing the mainshaft seal while he was in there. Heck he most probably messed it up putting on the inner primary!
Thread Starter
|
Tourer
Joined: Nov 2013
Posts: 433
Likes: 18
From: Cheyenne, WY
if it looks like it comes from the middle of the primary and the drain plug has drips on it then it is the inner primary mainshaft seal. the part is 25$ or so but the outer primary and inner primary have to come out, plus the compensating sprocket, the chain and the clutch pak and that means you need the inner primary bolts as well. Don't bother replacing metal gaskets they last and last.
The good news I have for you is that job is covered under warranty. Let them mess with it!
If your dealer changed those inner and outer gaskets he is a dumb-*** for not replacing the mainshaft seal while he was in there. Heck he most probably messed it up putting on the inner primary!
The good news I have for you is that job is covered under warranty. Let them mess with it!
If your dealer changed those inner and outer gaskets he is a dumb-*** for not replacing the mainshaft seal while he was in there. Heck he most probably messed it up putting on the inner primary!