Bent Mainshaft!
Tourer
Joined: Jun 2009
Posts: 257
Likes: 1
From: Bayarea California
you wont have to pull the entire trans just pull the inter and outer primary and remove the gear set. i would almost say that the mainshaft bearing has failed
did you drain the tranny oil ? was there metal on the plug ? did the oil look metallic
did you drain the tranny oil ? was there metal on the plug ? did the oil look metallic
Thread Starter
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Novice
Joined: Apr 2009
Posts: 15
Likes: 1
From: England
It's just too curious there is no metal in the oil, the entire transmission looks perfectclean as a whistle.
The main shaft also spins freely. I still haven't pulled the transmission, the sprocket nut wrench I ordered a week ago is still in the post.
I'm starting to wonder if the problem is not the mainshaft but the clutch basket - it seems that plenty of people have reported lots of wobble on the clutch basket. I'll try and measure the mainshafts deflection using a feeler gauge, I was assuming that the wobble I saw on the clutch was due to the mainshaft and I could be wrong.
Thread Starter
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Novice
Joined: Apr 2009
Posts: 15
Likes: 1
From: England
It seems that there are a lot of posts about wobbly clutch baskets - what causes this?
Just recieved a sprocket bold removal tool. Will remove the transmission next week and look at the mainshaft and bearing.
then we'll look at the mainshaft runnout and check the general health of the transmission
Just recieved a sprocket bold removal tool. Will remove the transmission next week and look at the mainshaft and bearing.
then we'll look at the mainshaft runnout and check the general health of the transmission
Extreme HDF Member
Joined: Nov 2006
Posts: 13,389
Likes: 26
From: Windham,Maine
It takes a lot more than a stock drivetrain to bend a trans mainshaft.Something else had to have happened.
Both my big inch Road Kings 02 and 06, have beefed up trans work done to them to help the mainshaft carry the extra torque.Billet trap door with double bearings and the Shovelhead inner primary bearing /seal to support the clutch side.
Both my big inch Road Kings 02 and 06, have beefed up trans work done to them to help the mainshaft carry the extra torque.Billet trap door with double bearings and the Shovelhead inner primary bearing /seal to support the clutch side.
Thread Starter
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Novice
Joined: Apr 2009
Posts: 15
Likes: 1
From: England
It takes a lot more than a stock drivetrain to bend a trans mainshaft.Something else had to have happened.
Both my big inch Road Kings 02 and 06, have beefed up trans work done to them to help the mainshaft carry the extra torque.Billet trap door with double bearings and the Shovelhead inner primary bearing /seal to support the clutch side.
Both my big inch Road Kings 02 and 06, have beefed up trans work done to them to help the mainshaft carry the extra torque.Billet trap door with double bearings and the Shovelhead inner primary bearing /seal to support the clutch side.
Well not sure but I think you could justifiably say told you so...
The Mainshaft has maybe 25 thou runnout... (which doesn't seem like a bid deal ... right??)
But the main bearing of the clutch basket is def screwed. It "clicks" and kicks on each rotation.
So now reassembling with a new bearing to see whats what...
Ultimate HDF Member
Joined: Nov 2008
Posts: 6,682
Likes: 12
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Stage I
Joined: Jun 2011
Posts: 1
Likes: 0
From: Massachusetts North Shore
Bent shaft
I just got a call for Boston Harley Davisdson. Unfortunately I am not a mechanic. They said my trans shaft was bent. I had the exact same symptoms as you did. They quoted my repair as $800 parts and $680 labor.
Does that sound rich??
Thanks, Fred
Does that sound rich??
Thanks, Fred
Road Master
Joined: Sep 2005
Posts: 1,231
Likes: 1
From: Texas
The mainshaft for my 5 speed was $220.00. Add in all the bearings, seals, gaskets and other miscellaneous parts and you can get to that number pretty quickly. What I did (at the advise of my local HD parts guy!) was to buy a complete gear set off ebay. I paid $150.00 and got a low mileage gear set off the same year model bike as mine.