Leak at rear primary...
Thread Starter
|
Stellar HDF Member
Joined: Nov 2010
Posts: 3,113
Likes: 1,144
From: Directly above the center of the Earth
Leak at rear primary...
I've replaced the race on the main shaft and replaced the oil seal twice on the rear primary, yet still it's leaking very badly. After riding any distance - short or far - and stop/park, it will drip about a tablespoon or two worth of oil. *While* riding, there's no telling how much it's leaking, but let's say that it covers the whole left side of the bike from the main shaft area on back. If I ride 200 miles, the primary will almost be empty and I have to refill it.
Any ideas to look at or try?
Any ideas to look at or try?
Tourer
Joined: Sep 2012
Posts: 390
Likes: 79
From: WI
Any burrs on the main shaft at all?
Did you also replace the quad seal when you replaced the primary?
Is the main seal in correctly?
Is it possible that the seal(s) were put in incorrectly or damaged in some way when installed? <<< no offense meant.
Did you also replace the quad seal when you replaced the primary?
Is the main seal in correctly?
Is it possible that the seal(s) were put in incorrectly or damaged in some way when installed? <<< no offense meant.
Thread Starter
|
Stellar HDF Member
Joined: Nov 2010
Posts: 3,113
Likes: 1,144
From: Directly above the center of the Earth
Quad seal? The seal I should only need to replace is on the back side of the rear primary that gets tapped in (spring side toward the bearing - facing outward from the frame/tranny) next to the bearing. It's about an inch and a half or so diameter. Is this what you're calling the "quad seal"? Here:
http://partsfinder.onlinemicrofiche....CASE%20HOUSING
part #12052A oil seal
The seal is in nice and straight, no cocking whatsoever (no offense taken, ya gotta ask to get rid of any questions just in case, I understand). As I said, spring side toward the bearing/toward outside of bike.
No, got some new ones and didn't really think as much oil as is leaking could actually get out behind those 5 bolts. Is it possible though, that much oil?
Last edited by ChickinOnaChain; Jan 2, 2017 at 09:46 AM.
Seasoned HDF Member
Joined: May 2008
Posts: 21,093
Likes: 12,638
From: South Carolina
The leak is primary lube, so it is not the quad seal (the quad seal is on the transmission).
For that much oil to be leaking, it would seem like you would see quite a mess on the rear of the bike.
It may be something weird, like the sprocket shaft seal allowing the primary lube to be drawn into the crankcases...
For that much oil to be leaking, it would seem like you would see quite a mess on the rear of the bike.
It may be something weird, like the sprocket shaft seal allowing the primary lube to be drawn into the crankcases...
Tourer
Joined: Jul 2016
Posts: 341
Likes: 168
From: Vancouver
The leak is primary lube, so it is not the quad seal (the quad seal is on the transmission).
For that much oil to be leaking, it would seem like you would see quite a mess on the rear of the bike.
It may be something weird, like the sprocket shaft seal allowing the primary lube to be drawn into the crankcases...
For that much oil to be leaking, it would seem like you would see quite a mess on the rear of the bike.
It may be something weird, like the sprocket shaft seal allowing the primary lube to be drawn into the crankcases...
I think he's talking about the big o-ring (A)
...and sure there'd be a fair amount leaking from at least one of the bolts, it's proximity being at or below the oil level line. All the mount bolts need sealant or o-rings, depending on year and make
Tourer
Joined: Sep 2012
Posts: 390
Likes: 79
From: WI
No burrs, checked that well, even before I read it in my shop manual (just made sense, heh).
Quad seal? The seal I should only need to replace is on the back side of the rear primary that gets tapped in (spring side toward the bearing - facing outward from the frame/tranny) next to the bearing. It's about an inch and a half or so diameter. Is this what you're calling the "quad seal"? Here:
http://partsfinder.onlinemicrofiche....CASE%20HOUSING
part #12052A oil seal
The seal is in nice and straight, no cocking whatsoever (no offense taken, ya gotta ask to get rid of any questions just in case, I understand). As I said, spring side toward the bearing/toward outside of bike.
Quad seal? The seal I should only need to replace is on the back side of the rear primary that gets tapped in (spring side toward the bearing - facing outward from the frame/tranny) next to the bearing. It's about an inch and a half or so diameter. Is this what you're calling the "quad seal"? Here:
http://partsfinder.onlinemicrofiche....CASE%20HOUSING
part #12052A oil seal
The seal is in nice and straight, no cocking whatsoever (no offense taken, ya gotta ask to get rid of any questions just in case, I understand). As I said, spring side toward the bearing/toward outside of bike.
I apologize; I completely mis-understood your post. I thought you pulled off the inner primary and removed the seal on the output shaft of the trans.
Trending Topics
Seasoned HDF Member
Joined: May 2008
Posts: 21,093
Likes: 12,638
From: South Carolina
Not talking about an o ring.
I suggested that the sprocket shaft seal could be bad, allowing the primary lube to be drawn into the crankcase.
I suggested that the sprocket shaft seal could be bad, allowing the primary lube to be drawn into the crankcase.
Last edited by ChickinOnaChain; Jan 2, 2017 at 09:46 AM.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
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
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Tourer
Joined: Jul 2016
Posts: 341
Likes: 168
From: Vancouver
Ya, not you...another poster
Thread Starter
|
Stellar HDF Member
Joined: Nov 2010
Posts: 3,113
Likes: 1,144
From: Directly above the center of the Earth
It's getting to the point I can damn near take down the primary blindfolded, heh. If I could afford it, I'd just say F-it and get a dry clutch drive, but us poorer folk living on disability checks don't really get that kind of option financially,
, oh well. I'll check the sealing bolts once more...maybe a little black silicon might be all that's needed.