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#625 From: Bicycle Minden <bicycle.minden@...>
Date: Wed Jun 24, 2009 10:30 pm
Subject: Expedition drivetrain problems 		bicycle.minden
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I bought an Expedition about a year ago and have most of the bugs worked out except for a persistant drivetrain problem.  The chain jumps on the rear sprocket on several of the gears.  This problem persists even though I put on a new SRAM chain [after the original brike 2x in less than 6 months] that's one continuous piece except for the quick link.  New rear sprocket, different rear shifter.  Doesn't matter which front ring I'm in but I notice it mainly on gears 3 & 4 [counting from the smallest rear ring].  It's about to drive me nuts and my LBS mechanic thinks I am crazy.

Charles Rathbun

~~~~~~~~~~~~~~~~~
"It's a beautiful day out there.
What are you doing inside?
Turn off the computer and
GO RIDE YOUR BIKE!"


Reply | Forward
#626 From: Mike Rice <dolo724@...>
Date: Thu Jun 25, 2009 5:57 am
Subject: Re: Expedition drivetrain problems 		dolo724
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Charles,
A couple of things to check, that you can do yourself.
1 - Make sure the cable is tensioned correctly. If it has stretched over time the shift position indicator may not be on target, so that position 3 or 4 is actually just shy of the ring. This can cause the chain to catch on the next ring and attempt to shift, but fail. While you are pedaling, use the threaded adjuster (at the shifter) to tighten it or loosen it just a bit. You'll hear if the chain gets better; if worse, go the other direction. If the cable adjuster is already at its limit, you'll have to shorten the cable at the dérailleur end.
2 - Make sure the chain and drive path are clean, including the dérailleur pivots. Dirt here can cause the above condition without a loose cable, and a dirty or rusty chain can cause kinking.
3 - Chains stretch and sprockets wear, but you said you took care of that already. I think #1 will help. Patience!

mIke

cdesign proponentsists: eschew obfuscation, espouse elucidation.

--- On Wed, 6/24/09, Bicycle Minden <bicycle.minden@...> wrote:

From: Bicycle Minden <bicycle.minden@...>
Subject: [TeamCatrike] Expedition drivetrain problems
To: TeamCatrike@yahoogroups.com
Date: Wednesday, June 24, 2009, 3:30 PM

I bought an Expedition about a year ago and have most of the bugs worked out except for a persistant drivetrain problem.  The chain jumps on the rear sprocket on several of the gears.  This problem persists even though I put on a new SRAM chain [after the original brike 2x in less than 6 months] that's one continuous piece except for the quick link.  New rear sprocket, different rear shifter.  Doesn't matter which front ring I'm in but I notice it mainly on gears 3 & 4 [counting from the smallest rear ring].  It's about to drive me nuts and my LBS mechanic thinks I am crazy.

Charles Rathbun

~~~~~~~~~~~~ ~~~~~
"It's a beautiful day out there.
What are you doing inside?
Turn off the computer and
GO RIDE YOUR BIKE!"


Reply | Forward
#627 From: "cte766" <az1103@...>
Date: Thu Jun 25, 2009 5:11 am
Subject: Re: Expedition drivetrain problems 		cte766
Offline Offline
Send Email Send Email
  
--- In TeamCatrike@yahoogroups.com, Bicycle Minden <bicycle.minden@...> wrote:

>

> I bought an Expedition about a year ago and have most of the bugs worked out

except for a persistant drivetrain problem.  The chain jumps on the rear

sprocket on several of the gears.

>

Charles, I just got back from a long ride and fiddle session.....Tightened the

cable at the derailleur one click at a time rode a few miles, fiddled some

more...... I believe it's a compounded problem; First, when they assembled these

things they ran the cable around the steering tie rod which causes the cable to

kink and move at the slightest turn - I corrected that and ran it into the front

(between fabric layers) of the seat and straight back, readjusted the cable and

all was well for about 30 miles....Then it began the chattering again and I

began fiddling with the tension. I almost have it but I suspect there is a

deeper problem; Last time I had to fix that sort of problem, on a DF, it turned

out that the derailleur when aligned at some cogs was just a tiny tweak out of

parallel with the cluster gears and there was just enough lateral play in the

idler (not the tensioner) to cause some slop. Fixed it by upgrading that


Reply | Forward
#628 From: "cte766" <az1103@...>
Date: Thu Jun 25, 2009 5:20 am
Subject: Re: Expedition drivetrain problems 		cte766
Offline Offline
Send Email Send Email
  
--- In TeamCatrike@yahoogroups.com, Bicycle Minden <bicycle.minden@...> wrote:

>

> I bought an Expedition about a year ago and have most of the bugs worked out

except for a persistant drivetrain problem.  The chain jumps on the rear

sprocket on several of the gears.  This problem persists even though I put on a

new SRAM chain [after the original brike 2x in less than 6 months] that's one

continuous piece except for the quick link.  New rear sprocket, different rear

shifter.  Doesn't matter which front ring I'm in but I notice it mainly on gears

3 & 4 [counting from the smallest rear ring].  It's about to drive me nuts and

my LBS mechanic thinks I am crazy.

>

> Charles Rathbun

>

> ~~~~~~~~~~~~~~~~~

> "It's a beautiful day out there.

> What are you doing inside?

> Turn off the computer and

> GO RIDE YOUR BIKE!"



Charles, I just got back from a long ride and fiddle session.....Tightened the

cable at the derailleur one click at a time rode a few miles, fiddled some

more...... I believe it's a compounded problem; First, when they assembled these

things they ran the cable around the steering tie rod which causes the cable to

kink and move at the slightest turn - I corrected that and ran it into the front

(between fabric layers) of the seat and straight back, readjusted the cable and

all was well for about 30 miles....Then it began the chattering again and I

began fiddling with the tension. I almost have it but I suspect there is a

deeper problem; Last time I had to fix that sort of problem, on a DF, it turned

out that the derailleur when aligned at some cogs was just a tiny tweak out of

parallel with the cluster gears and there was just enough lateral play in the

idler (not the tensioner) to cause some slop. Fixed it by upgrading that


Reply | Forward
#629 From: "cte766" <az1103@...>
Date: Thu Jun 25, 2009 5:11 am
Subject: Re: Expedition drivetrain problems 		cte766
Offline Offline
Send Email Send Email
  
--- In TeamCatrike@yahoogroups.com, Bicycle Minden <bicycle.minden@...> wrote:

>

> I bought an Expedition about a year ago and have most of the bugs worked out

except for a persistant drivetrain problem.  The chain jumps on the rear

sprocket on several of the gears. 

>

Charles, I just got back from a long ride and fiddle session.....Tightened the

cable at the derailleur one click at a time rode a few miles, fiddled some

more...... I believe it's a compounded problem; First, when they assembled these

things they ran the cable around the steering tie rod which causes the cable to

kink and move at the slightest turn - I corrected that and ran it into the front

(between fabric layers) of the seat and straight back, readjusted the cable and

all was well for about 30 miles....Then it began the chattering again and I

began fiddling with the tension. I almost have it but I suspect there is a

deeper problem; Last time I had to fix that sort of problem, on a DF, it turned

out that the derailleur when aligned at some cogs was just a tiny tweak out of

parallel with the cluster gears and there was just enough lateral play in the

idler (not the tensioner) to cause some slop. Fixed it by upgrading that idler.

I would first check that.

This could end up being a similar problem. As to the Sram chain...So far I am

not particularly impressed.


Reply | Forward
#630 From: "cte766" <az1103@...>
Date: Thu Jun 25, 2009 5:09 am
Subject: Re: Expedition drivetrain problems 		cte766
Offline Offline
Send Email Send Email
  
--- In TeamCatrike@yahoogroups.com, Bicycle Minden <bicycle.minden@...> wrote:

>

> I bought an Expedition about a year ago and have most of the bugs worked out

except for a persistant drivetrain problem.  The chain jumps on the rear

sprocket on several of the gears. 

>

Charles, I just got back from a long ride and fiddle session.....Tightened the

cable at the derailleur one click at a time rode a few miles, fiddled some

more...... I believe it's a compounded problem; First, when they assembled these

things they ran the cable around the steering tie rod which causes the cable to

kink and move at the slightest turn - I corrected that and ran it into the front

(between fabric layers) of the seat and straight back, readjusted the cable and

all was well for about 30 miles....Then it began the chattering again and I

began fiddling with the tension. I almost have it but I suspect there is a

deeper problem; Last time I had to fix that sort of problem, on a DF, it turned

out that the derailleur when aligned at some cogs was just a tiny tweak out of

parallel with the cluster gears and there was just enough lateral play in the

idler (not the tensioner) to cause some slop. Fixed it by upgrading that idler.

I would first check that.

This could end up being a similar problem. As to the Sram chain...So far I am

not particularly impressed.


Reply | Forward
#632 From: Bicycle Minden <bicycle.minden@...>
Date: Thu Jun 25, 2009 5:59 pm
Subject: Re: Expedition drivetrain problems 		bicycle.minden
Online Now Online Now
Send Email Send Email
 
brane new cable installed when busted right shifter replaced less than a week ago.  Rode it 2 days after this was done...still jumping in the same places.  I'm thinking of the rear derailleur...tht's the only thing we haven't addressed.  I'll degrease it and clean it and blow it out and see if that helps.  It may ahve gotten bent ...it hangs so low

Charles Rathbun

~~~~~~~~~~~~~~~~~
"It's a beautiful day out there.
What are you doing inside?
Turn off the computer and
GO RIDE YOUR BIKE!"

--- On Thu, 6/25/09, Mike Rice <dolo724@...> wrote:

From: Mike Rice <dolo724@...>
Subject: Re: [TeamCatrike] Expedition drivetrain problems
To: TeamCatrike@yahoogroups.com
Date: Thursday, June 25, 2009, 12:57 AM

Charles,
A couple of things to check, that you can do yourself.
1 - Make sure the cable is tensioned correctly. If it has stretched over time the shift position indicator may not be on target, so that position 3 or 4 is actually just shy of the ring. This can cause the chain to catch on the next ring and attempt to shift, but fail. While you are pedaling, use the threaded adjuster (at the shifter) to tighten it or loosen it just a bit. You'll hear if the chain gets better; if worse, go the other direction. If the cable adjuster is already at its limit, you'll have to shorten the cable at the dérailleur end.
2 - Make sure the chain and drive path are clean, including the dérailleur pivots. Dirt here can cause the above condition without a loose cable, and a dirty or rusty chain can cause kinking.
3 - Chains stretch and sprockets wear, but you said you took care of that already. I think #1 will help. Patience!

mIke

cdesign proponentsists: eschew obfuscation, espouse elucidation.

--- On Wed, 6/24/09, Bicycle Minden <bicycle.minden@ yahoo.com> wrote:

From: Bicycle Minden <bicycle.minden@ yahoo.com>
Subject: [TeamCatrike] Expedition drivetrain problems
To: TeamCatrike@ yahoogroups. com
Date: Wednesday, June 24, 2009, 3:30 PM

I bought an Expedition about a year ago and have most of the bugs worked out except for a persistant drivetrain problem.  The chain jumps on the rear sprocket on several of the gears.  This problem persists even though I put on a new SRAM chain [after the original brike 2x in less than 6 months] that's one continuous piece except for the quick link.  New rear sprocket, different rear shifter.  Doesn't matter which front ring I'm in but I notice it mainly on gears 3 & 4 [counting from the smallest rear ring].  It's about to drive me nuts and my LBS mechanic thinks I am crazy.

Charles Rathbun

~~~~~~~~~~~~ ~~~~~
"It's a beautiful day out there.
What are you doing inside?
Turn off the computer and
GO RIDE YOUR BIKE!"



Reply | Forward
#633 From: Bicycle Minden <bicycle.minden@...>
Date: Thu Jun 25, 2009 5:56 pm
Subject: Re: Re: Expedition drivetrain problems 		bicycle.minden
Online Now Online Now
Send Email Send Email
 
it HAD a KDS chain to begin with I think and it broke 2x in the first 6 months although I an very meticulous on cleaning and lubing the drivetrain

Charles Rathbun

~~~~~~~~~~~~~~~~~
"It's a beautiful day out there.
What are you doing inside?
Turn off the computer and
GO RIDE YOUR BIKE!"

--- On Thu, 6/25/09, cte766 <az1103@...> wrote:

From: cte766 <az1103@...>
Subject: [TeamCatrike] Re: Expedition drivetrain problems
To: TeamCatrike@yahoogroups.com
Date: Thursday, June 25, 2009, 12:11 AM

--- In TeamCatrike@ yahoogroups. com, Bicycle Minden <bicycle.minden@ ...> wrote:
>
> I bought an Expedition about a year ago and have most of the bugs worked out except for a persistant drivetrain problem.  The chain jumps on the rear sprocket on several of the gears. 
>
Charles, I just got back from a long ride and fiddle session..... Tightened the cable at the derailleur one click at a time rode a few miles, fiddled some more...... I believe it's a compounded problem; First, when they assembled these things they ran the cable around the steering tie rod which causes the cable to kink and move at the slightest turn - I corrected that and ran it into the front (between fabric layers) of the seat and straight back, readjusted the cable and all was well for about 30 miles....Then it began the chattering again and I began fiddling with the tension. I almost have it but I suspect there is a deeper problem; Last time I had to fix that sort of problem, on a DF, it turned out that the derailleur when aligned at some cogs was just a tiny tweak out of parallel with the cluster gears and there was just enough lateral play in the idler (not the tensioner) to cause some slop. Fixed it by upgrading that idler. I would first check that.
This could end up being a similar problem. As to the Sram chain...So far I am not particularly impressed.



Reply | Forward
#634 From: Mike Fitzsimmons <themnfitz@...>
Date: Thu Jun 25, 2009 2:45 pm
Subject: Re: Re: Expedition drivetrain problems 		themnfitz
Offline Offline
Send Email Send Email
 
Does this, by chance, happen when you are cornering or going over bumps?  I've had trouble with my trike (NOT a catrike, however) and several other recumbents with long chain lines caused by chain whip resulting in phantom shifts.
Mike

--- On Thu, 6/25/09, cte766 <az1103@...> wrote:

From: cte766 <az1103@...>
Subject: [TeamCatrike] Re: Expedition drivetrain problems
To: TeamCatrike@yahoogroups.com
Date: Thursday, June 25, 2009, 12:11 AM

--- In TeamCatrike@ yahoogroups. com, Bicycle Minden <bicycle.minden@ ...> wrote:
>
> I bought an Expedition about a year ago and have most of the bugs worked out except for a persistant drivetrain problem. The chain jumps on the rear sprocket on several of the gears.
>
Charles, I just got back from a long ride and fiddle session..... Tightened the cable at the derailleur one click at a time rode a few miles, fiddled some more...... I believe it's a compounded problem; First, when they assembled these things they ran the cable around the steering tie rod which causes the cable to kink and move at the slightest turn - I corrected that and ran it into the front (between fabric layers) of the seat and straight back, readjusted the cable and all was well for about 30 miles....Then it began the chattering again and I began fiddling with the tension. I almost have it but I suspect there is a deeper problem; Last time I had to fix that sort of problem, on a DF, it turned out that the derailleur when aligned at some cogs was just a tiny tweak out of parallel with the cluster gears and there was just enough lateral play in the idler (not the tensioner) to cause some slop. Fixed it by upgrading that



Reply | Forward
#639 From: Bicycle Minden <bicycle.minden@...>
Date: Fri Jul 3, 2009 1:41 am
Subject: Re: Re: Expedition drivetrain problems 		bicycle.minden
Online Now Online Now
Send Email Send Email
 
not really...most of the time it's on straight runs and more often than not when I'm "under load" going up an incline

Charles Rathbun

~~~~~~~~~~~~~~~~~
"It's a beautiful day out there.
What are you doing inside?
Turn off the computer and
GO RIDE YOUR BIKE!"

--- On Thu, 6/25/09, Mike Fitzsimmons <themnfitz@...> wrote:

From: Mike Fitzsimmons <themnfitz@...>
Subject: Re: [TeamCatrike] Re: Expedition drivetrain problems
To: TeamCatrike@yahoogroups.com
Date: Thursday, June 25, 2009, 9:45 AM

Does this, by chance, happen when you are cornering or going over bumps?  I've had trouble with my trike (NOT a catrike, however) and several other recumbents with long chain lines caused by chain whip resulting in phantom shifts.
Mike

--- On Thu, 6/25/09, cte766 <az1103@verizon. net> wrote:

From: cte766 <az1103@verizon. net>
Subject: [TeamCatrike] Re: Expedition drivetrain problems
To: TeamCatrike@ yahoogroups. com
Date: Thursday, June 25, 2009, 12:11 AM

--- In TeamCatrike@ yahoogroups. com, Bicycle Minden <bicycle.minden@ ...> wrote:
>
> I bought an Expedition about a year ago and have most of the bugs worked out except for a persistant drivetrain problem. The chain jumps on the rear sprocket on several of the gears.
>
Charles, I just got back from a long ride and fiddle session..... Tightened the cable at the derailleur one click at a time rode a few miles, fiddled some more...... I believe it's a compounded problem; First, when they assembled these things they ran the cable around the steering tie rod which causes the cable to kink and move at the slightest turn - I corrected that and ran it into the front (between fabric layers) of the seat and straight back, readjusted the cable and all was well for about 30 miles....Then it began the chattering again and I began fiddling with the tension. I almost have it but I suspect there is a deeper problem; Last time I had to fix that sort of problem, on a DF, it turned out that the derailleur when aligned at some cogs was just a tiny tweak out of parallel with the cluster gears and there was just enough lateral play in the idler (not the tensioner) to cause some slop. Fixed it by upgrading that




Reply | Forward
#640 From: "irodguy" <rodneyhaas@...>
Date: Sat Jul 4, 2009 1:49 pm
Subject: Re: Expedition drivetrain problems 		irodguy
Offline Offline
Send Email Send Email
  
You know when I think about it I had a similar issue the chain was to long for

the amount the boom was out.  What I discovered as I had inadvertently not moved

the boom back out after a car ride cross country.  When I moved the boom sucking

up the chain problem solved.



Plano Rod

Plano Texas

99 X-Stream

98 Expedition

98 Strada











--- In TeamCatrike@yahoogroups.com, Bicycle Minden <bicycle.minden@...> wrote:

>

> not really...most of the time it's on straight runs and more often than not

when I'm "under load" going up an incline

>

> Charles Rathbun

>

> ~~~~~~~~~~~~~~~~~

> "It's a beautiful day out there.

> What are you doing inside?

> Turn off the computer and

> GO RIDE YOUR BIKE!"

>

> --- On Thu, 6/25/09, Mike Fitzsimmons <themnfitz@...> wrote:

>

>

> From: Mike Fitzsimmons <themnfitz@...>

> Subject: Re: [TeamCatrike] Re: Expedition drivetrain problems

> To: TeamCatrike@yahoogroups.com

> Date: Thursday, June 25, 2009, 9:45 AM

>

>

>

>

>

>

>

>

>

>

>

>

> Does this, by chance, happen when you are cornering or going over bumps?�

I've had trouble with my trike (NOT a catrike, however) and several other

recumbents with long chain lines caused by chain whip resulting in phantom

shifts.

> Mike

>

> --- On Thu, 6/25/09, cte766 <az1103@verizon. net> wrote:

>

>

> From: cte766 <az1103@verizon. net>

> Subject: [TeamCatrike] Re: Expedition drivetrain problems

> To: TeamCatrike@ yahoogroups. com

> Date: Thursday, June 25, 2009, 12:11 AM

>

>

>

>

> --- In TeamCatrike@ yahoogroups. com, Bicycle Minden <bicycle.minden@ ...>

wrote:

> >

> > I bought an Expedition about a year ago and have most of the bugs worked out

except for a persistant drivetrain problem. The chain jumps on the rear sprocket

on several of the gears.

> >

> Charles, I just got back from a long ride and fiddle session..... Tightened

the cable at the derailleur one click at a time rode a few miles, fiddled some

more...... I believe it's a compounded problem; First, when they assembled these

things they ran the cable around the steering tie rod which causes the cable to

kink and move at the slightest turn - I corrected that and ran it into the front

(between fabric layers) of the seat and straight back, readjusted the cable and

all was well for about 30 miles....Then it began the chattering again and I

began fiddling with the tension. I almost have it but I suspect there is a

deeper problem; Last time I had to fix that sort of problem, on a DF, it turned

out that the derailleur when aligned at some cogs was just a tiny tweak out of

parallel with the cluster gears and there was just enough lateral play in the

idler (not the tensioner) to cause some slop. Fixed it by upgrading that

>


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