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Stripped limit screw

Old 06-27-20, 06:21 PM
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trek330
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Stripped limit screw

I have an old mountain bike with a shimano Deore LX front derraileuer with a stripped limit screw,Any advice on 1.how to remove and2.How to replace??
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Old 06-27-20, 06:33 PM
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If the part has a stripped screw and you are not able to figure out how to remove the screw then I'm fairly certain that you do not poses the skills and/or tools to make the repair yourself. Sorry if that offends. Beyond that if you are an intrepid individual there are literally tons of youtubes that show visually in exciting detail how to....
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Old 06-27-20, 07:21 PM
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Originally Posted by trek330 View Post
I have an old mountain bike with a shimano Deore LX front derraileuer with a stripped limit screw,Any advice on 1.how to remove and2.How to replace??
Can you clarify what got stripped? Did the screws threads get damaged, such that you can turn the limit screw and the screw does not move. Or is the head of the screw damaged such that you can no longer fit a screwdriver blade into it?

I've seen people use the terminology in both contexts.
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Old 06-27-20, 08:52 PM
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And given the low cost of a new/used ft der how much time is this repair worth? Andy
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Old 06-27-20, 09:39 PM
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Originally Posted by Thomas15 View Post
If the part has a stripped screw and you are not able to figure out how to remove the screw then I'm fairly certain that you do not poses the skills and/or tools to make the repair yourself. Sorry if that offends. Beyond that if you are an intrepid individual there are literally tons of youtubes that show visually in exciting detail how to....

How about trying to help rather than postig an arrogant response ?
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Old 06-28-20, 12:16 AM
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Originally Posted by frogman View Post
How about trying to help rather than postig an arrogant response ?
Reality can sometimes be the mean teacher.
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Old 06-28-20, 02:08 AM
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If enough of the bolt head is exposed, try pliers. If it's in deep, tall the head with something small to try to create an edge for a smaller screwdriver. Otherwise you can try to drill it out. As for replacing, take out the other one and try to find a match.
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Old 06-28-20, 02:51 AM
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Originally Posted by MudPie View Post
Can you clarify what got stripped? Did the screws threads get damaged, such that you can turn the limit screw and the screw does not move. Or is the head of the screw damaged such that you can no longer fit a screwdriver blade into it?

I've seen people use the terminology in both contexts.
Yes,its the head that's shot.
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Old 06-28-20, 02:54 AM
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Originally Posted by tFUnK View Post
If enough of the bolt head is exposed, try pliers. If it's in deep, tall the head with something small to try to create an edge for a smaller screwdriver. Otherwise you can try to drill it out. As for replacing, take out the other one and try to find a match.
kGiven the proximity to the tube I think it will be hard to get the right angle with a drill.Pliers are not an option.I think I'll go with a new deralilleur.
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Old 06-28-20, 03:01 AM
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Originally Posted by Thomas15 View Post
If the part has a stripped screw and you are not able to figure out how to remove the screw then I'm fairly certain that you do not poses the skills and/or tools to make the repair yourself. Sorry if that offends. Beyond that if you are an intrepid individual there are literally tons of youtubes that show visually in exciting detail how to....
Let's see if this word is not automattically censored by the site,Schmuck!Great that worked!
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Old 06-28-20, 03:22 AM
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Well folks I just ordered an identical derailleur on ebay for $9.00!Includes postage.Despite the impression some less mannered people on this post had I did do my research and extractor tools alone cost more than that and You-tube clips didn't seem to be relevant due to the space limitations of my situation.Thank you all for your help!!
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Old 06-28-20, 04:02 AM
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If you remove the FD, then wouldn't you no longer have clearance problems to whichever "tube"?
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Old 06-28-20, 08:37 AM
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Originally Posted by trek330 View Post
Let's see if this word is not automattically censored by the site,Schmuck!Great that worked!
Dont be a prick! Why is the head stripped? Were you the one that stripped it? Come on man why be a name caller?
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Old 06-28-20, 11:49 AM
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Originally Posted by tomtomtom123 View Post
If you remove the FD, then wouldn't you no longer have clearance problems to whichever "tube"?
Yeah bicycling with the club today that occurred to me!I think my age is catching up with me.Anyway it's more trouble than it's worth and the replacement is on its way.Thanks for the input,
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Old 06-28-20, 01:32 PM
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Glad my suggestion was helpful after all. But as someone else followed up with why was the head stripped? Was it that a poor fitting screwdriver used in a damaging manor? Or that the screw's threads were becoming, was already, frozen in the der body? I suspect the latter. Given the der's location WRT the rear tire's tossing off water (and I'll bet the bike has no fenders) and that lubing der limit screw threads is about as far down the maintenance list as it gets.

Once the old der is removed I suggest playing with tit and finding out whether the screws are still turnable., or not. Drip a drop of lube, I like TriFlow for this type of thing, on the new der's screws and run the in and out a few turns before finalizing the adjustment. Repeat this every year. Oh, and make sure the rear der's screws are also lubed and that the screwdriver fits solidly too. Andy
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Old 06-28-20, 02:48 PM
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PRO-Tip get something like this, put it in your toolbox: https://www.amazon.com/Hozan-JIS-4-J...43&s=hi&sr=1-4
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Old 06-28-20, 05:42 PM
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Just a caution, but some of the posts in this thread, the ones with name calling are in violation of the Forum rules.
"Harassment
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Old 06-29-20, 10:00 AM
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With the right tools, I for instance have them, it would be an easy repair. Some of the old bolt should be sticking out, so use pliars and remove it. Then retap to a larger size an put in a new screw.
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Old 07-06-20, 08:31 AM
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Originally Posted by trek330 View Post
Yes,its the head that's shot.
The Shimano deraileur is designed for a JIS (Japanese standard) screwdriver head, using a Phillip's screwdriver is probably the cause of the damage.
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Old 07-06-20, 12:45 PM
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Originally Posted by roth rothar View Post
The Shimano deraileur is designed for a JIS (Japanese standard) screwdriver head, using a Phillip's screwdriver is probably the cause of the damage.
I didn't know there was a difference!!The bike was used when I bought it and the head was not good from the beginning.I usually used a flat head to turn it.Updateerailleur I bought had the wrong clamp size and the correct one is on it's way for much more money.
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Old 07-06-20, 03:13 PM
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Hard to believe you couldn't get a pair of needle nose pliers in there to extract and replace the screw.

But sometimes stuff just wears out. Finding a replacement screw was probably going to be a bigger challenge than sourcing a replacement derailleur. Unless you are like me and never throw anything out.
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