Primary cover off, now what?
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Road Warrior
Joined: Jul 2013
Posts: 1,476
Likes: 5
From: Florida
Primary cover off, now what?
Well, here is where I'm at (of course there's a pic!):
Obviously, the compensator nut needs to come off (what size is that thing?), primary chain (looks like it needs a serious adjustment, and sprocket. Then what? Remember, I'm doing all this sans manual (have one ordered, waiting) and relying on the forum and google, so please be nice.
So far, everything has been pretty obvious and fairly simple, but this stage of the teardown seems like it may have specific (and crucial) procedures, and I don't wanna F anything up. Should I wait for the manual to come in?
As a side note, is there supposed to be a lot of "wiggle" in the drive gear on the starter? Seems a little "sloppy" to me (another pic!):
Obviously, the compensator nut needs to come off (what size is that thing?), primary chain (looks like it needs a serious adjustment, and sprocket. Then what? Remember, I'm doing all this sans manual (have one ordered, waiting) and relying on the forum and google, so please be nice.
So far, everything has been pretty obvious and fairly simple, but this stage of the teardown seems like it may have specific (and crucial) procedures, and I don't wanna F anything up. Should I wait for the manual to come in?
As a side note, is there supposed to be a lot of "wiggle" in the drive gear on the starter? Seems a little "sloppy" to me (another pic!):
Last edited by HarDlife; Sep 16, 2013 at 11:46 AM.
Road Warrior
Joined: Mar 2007
Posts: 1,959
Likes: 2
From: Florida
The compensator, the chain, and clutch hub all come out at the same time. Compensator nut is something like 1 1/2, the chain adjuster needs to be freed, the clutch hub is left handed thread. Not the lock nut there, you need to take that clutch adjuster out. The chain tightens as it gets hot. My book says something like 5/8"-7/8" play in the middle when cold. Yours looks about right.
Club Member
Joined: Apr 2011
Posts: 5,816
Likes: 7,847
From: SE Louisiana
1 1/2" socket on the comp.
1 5/16" socket for the clutch left hand thread.
The jackshaft's outter support is the bushing in the primary cover.
You need a tool to lock the primary gears/chain.
You can make one out of some teflon or even use a old tensioner shoe.
Try not to use a impact on the compensator, can risk knocking the magnets loose in the rotor.
Hard to tell from that picture, but check the comp. sprocket for wear, make sure teeth are not wore to a sharp point.
and check if you still have enough adjustment left to tighten the chain with 5/8 to 7/8 slack measured at the top, midway between the comp. and the clutch sprckets
1 5/16" socket for the clutch left hand thread.
The jackshaft's outter support is the bushing in the primary cover.
You need a tool to lock the primary gears/chain.
You can make one out of some teflon or even use a old tensioner shoe.
Try not to use a impact on the compensator, can risk knocking the magnets loose in the rotor.
Hard to tell from that picture, but check the comp. sprocket for wear, make sure teeth are not wore to a sharp point.
and check if you still have enough adjustment left to tighten the chain with 5/8 to 7/8 slack measured at the top, midway between the comp. and the clutch sprckets
Road Warrior
Joined: Mar 2007
Posts: 1,959
Likes: 2
From: Florida
There is a healthy debate about using impact drivers here. I've used impact. I've tried locking up the chain and using a breaker bar, but it's brutal! I've never damaged the rotor, but I've read that impact could knock things out of alignment on the crank. I've never had a problem, but I'd rather not if I ever go there again.
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,200
Likes: 3,089
From: NW AR
I've used an impact almost all the time.
The shop I used to hang out at would pull a motor without pulling the inner primary. Leave it all on there, just pull the compensator nut off, undo the bolts, pull the motor out leaving the inner primary alone. I think they left the clutch on too, but it's been a while since I saw it done.
The shop I used to hang out at would pull a motor without pulling the inner primary. Leave it all on there, just pull the compensator nut off, undo the bolts, pull the motor out leaving the inner primary alone. I think they left the clutch on too, but it's been a while since I saw it done.
Club Member
Joined: Apr 2011
Posts: 5,816
Likes: 7,847
From: SE Louisiana
I used a impact before myself as a last resort, that's why I said "try"'
If you do use one just break it loose then wrench it the rest of the way.
Also there's red loctight on those nuts, a little heating of the comp nut helps to break it loose without a impact
If you do use one just break it loose then wrench it the rest of the way.
Also there's red loctight on those nuts, a little heating of the comp nut helps to break it loose without a impact
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Road Warrior
Joined: Mar 2007
Posts: 1,959
Likes: 2
From: Florida
The shop I used to hang out at would pull a motor without pulling the inner primary. Leave it all on there, just pull the compensator nut off, undo the bolts, pull the motor out leaving the inner primary alone. I think they left the clutch on too, but it's been a while since I saw it done.
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Thread Starter
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Road Warrior
Joined: Jul 2013
Posts: 1,476
Likes: 5
From: Florida
Thank guys. I've been youtubin' it for a coupla hours, looks pretty easy. The Dr. is right, if you pull the tensioner you should be able to get the comp and sprocket off without touching the clutch. Gotta go round up that BA socket, and then I'll have at it...
Stellar HDF Member
Joined: Jul 2011
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From: Boston, MA
