Help me please!!!
09-08-12 | 12:22 AM
#1
Thread Starter
Junior Member
Joined: Sep 2012
Posts: 17
Likes: 0
Bikes: 70s amf roadmaster, mutt mountainbike/cruiser, leader
Help me please!!!
I'm trying to remove the crankset off this vintage bike I bought- but the chainring hits the frame and doesn't let Me take the cranks off. The cranks are the one piece s types
And the frame is a 1970s amf roadmaster.
Anything will help
This is frustrating the cr** out of me!
Thanks!
And the frame is a 1970s amf roadmaster.
Anything will help
This is frustrating the cr** out of me!
Thanks!
09-08-12 | 12:26 AM
#2
Insane Bicycle Mechanic
Joined: Mar 2008
Posts: 10,154
Likes: 1,121
From: other Vancouver
Turn the crank so the right arm is pointed upward. This will allow you to snake the left side of the crank out of the frame. Sometimes it helps to have a screwdriver handy to push the bearing cages out of the way.
As FB said- you have a one-piece "Ashtabula" crank: https://sheldonbrown.com/opc.html .
I overhauled hundreds of these in my bike shop days. Once you get it oriented correctly, it should just about fall out.
As FB said- you have a one-piece "Ashtabula" crank: https://sheldonbrown.com/opc.html .
I overhauled hundreds of these in my bike shop days. Once you get it oriented correctly, it should just about fall out.
__________________
Jeff Wills
Comcast nuked my web page. It will return soon..
Jeff Wills
Comcast nuked my web page. It will return soon..
09-08-12 | 12:42 AM
#4
Senior Member
Joined: Dec 2007
Posts: 3,518
Likes: 40
From: San Jose, California
Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed
Why another thread forking in the process? FBinNY was already getting started with helping out?
I agree with both...but also look at the bottom the shell (the underside) for any evidence that screws or rivets were put in for some reasons or another...chain guards, wire minders...kinda doubt it but you never know.
Having said that, please don't "fork" threads...stick around in the original and be patient.
=8-)
I agree with both...but also look at the bottom the shell (the underside) for any evidence that screws or rivets were put in for some reasons or another...chain guards, wire minders...kinda doubt it but you never know.
Having said that, please don't "fork" threads...stick around in the original and be patient.
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
09-08-12 | 12:52 AM
#6
Senior Member
Joined: Dec 2007
Posts: 3,518
Likes: 40
From: San Jose, California
Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed
Go back and read Jeff Wills post...
1. Screwdriver or some "nudging/picking" tool handy.
2. Hold the crank with right arm up and left arm down.
3. Slide the crank all the way right...until the left arm elbow is really close to the left side cup. (Make sure left side bearings, cones and nut have already been cleared out.)
4. Then tilt up the left arm and tilt down the right arm at the same time while clearing out the right side bearing if you can.
That should get the left side arm elbow inside the shell against the top and the right arm elbow partially out and against the bottom of the right side of the shell. As Jeff Wills said, "it should just about fall out."
=8-)
1. Screwdriver or some "nudging/picking" tool handy.
2. Hold the crank with right arm up and left arm down.
3. Slide the crank all the way right...until the left arm elbow is really close to the left side cup. (Make sure left side bearings, cones and nut have already been cleared out.)
4. Then tilt up the left arm and tilt down the right arm at the same time while clearing out the right side bearing if you can.
That should get the left side arm elbow inside the shell against the top and the right arm elbow partially out and against the bottom of the right side of the shell. As Jeff Wills said, "it should just about fall out."
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
09-08-12 | 01:14 AM
#7
Thread Starter
Junior Member
Joined: Sep 2012
Posts: 17
Likes: 0
Bikes: 70s amf roadmaster, mutt mountainbike/cruiser, leader
Sigh... Probably should've mentioned this earlier, the bike is upside down resting on it's handle bars and seat. I'm not sure what you mean by "up" or "down"
Or If youre giving me directions based on the bike being upright on
A bike shop rig.
Sorry
Ps. Tried again with a flathead screw driver and no dice-
Or If youre giving me directions based on the bike being upright on
A bike shop rig.
Sorry
Ps. Tried again with a flathead screw driver and no dice-
09-08-12 | 01:19 AM
#8
Senior Member
Joined: Dec 2007
Posts: 3,518
Likes: 40
From: San Jose, California
Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed
Bike right side up...
By left we mean side without the chainring. By right we mean the side with the chainring.
The right side bearing needs to be gently pried loose as you start the tilt process...else a jam occurs.
Hint: Try to get the following germ in your brain - if the crank went in clean, it will also come out clean.
Slow down, and with that little germ in your brain...try it again.
=8-)
By left we mean side without the chainring. By right we mean the side with the chainring.
The right side bearing needs to be gently pried loose as you start the tilt process...else a jam occurs.
Hint: Try to get the following germ in your brain - if the crank went in clean, it will also come out clean.
Slow down, and with that little germ in your brain...try it again.
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
09-08-12 | 01:34 AM
#9
Thread Starter
Junior Member
Joined: Sep 2012
Posts: 17
Likes: 0
Bikes: 70s amf roadmaster, mutt mountainbike/cruiser, leader
Oh my god! I did it! It just fell right out!!! Holy crap!!! Thank you guys so much! If it went in clean it'll come out clean!!! It just fell right out... Hours of work for one little 'plop' geez....
Sigh.... Thanks again guys! Appreciate the help!
Sigh.... Thanks again guys! Appreciate the help!
09-08-12 | 01:42 AM
#10
Senior Member
Joined: Dec 2007
Posts: 3,518
Likes: 40
From: San Jose, California
Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed
Congrats...it's late...get some sleep...
=8-)
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
09-08-12 | 10:18 AM
#11
Insane Bicycle Mechanic
Joined: Mar 2008
Posts: 10,154
Likes: 1,121
From: other Vancouver
09-08-12 | 10:22 AM
#12
Senior Member
Joined: Dec 2007
Posts: 3,518
Likes: 40
From: San Jose, California
Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed
Got up at 7:30am...just started my yearly yard sale....
...and the only things selling so far are my son's toys...
=8-)
...and the only things selling so far are my son's toys...
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
