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Search: Posts Made By: Andrew R Stewart
Showing results 1 to 50 of 1000
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Forum: Framebuilders
07-04-20, 07:53 AM
Replies: 8
Views: 89
Posted By Andrew R Stewart

I think this photo shows how overengineered...

I think this photo shows how overengineered "traditional" steel frame building is. In this use of that term I am meaning how well designed to handle less then perfect fabrication. I today's world of...
07-03-20, 07:08 PM
Replies: 10
Views: 220
Posted By Andrew R Stewart

First is that the law of averages tend to catch...

First is that the law of averages tend to catch up to us all. I've had seasons with one flat and others with 6 or 7, seems to average about 1 per 1000 miles over time.

"with really high quality...
07-03-20, 06:56 PM
Replies: 3
Views: 106
Posted By Andrew R Stewart

I assume tapered square BB and cranks. Retaining...

I assume tapered square BB and cranks. Retaining bolts torque is generally stated at around 25-30 foot pounds.

Grinding can be from just too much preload on the bearings even if in good condition...
07-03-20, 06:36 PM
Replies: 2
Views: 77
Posted By Andrew R Stewart

With no barrel adjuster in the front cable run...

With no barrel adjuster in the front cable run for these levers the options for initial cable tension is pretty much a hit and miss. Since these were a flash in the pan just before indexing took over...
07-03-20, 06:45 AM
Replies: 12
Views: 138
Posted By Andrew R Stewart

Given the current shortage of many basic bike...

Given the current shortage of many basic bike parts, due to the world wide disruption of manufacturing and the massive increase of demand from the Covid-19 pandemic, it's no surprise that rim strips...
Forum: Framebuilders
07-03-20, 06:40 AM
Replies: 40
Views: 1,007
Posted By Andrew R Stewart

Weld, braze, glue depending on the material,...

Weld, braze, glue depending on the material, joint design and your skill set. Andy
07-02-20, 09:36 PM
Replies: 8
Views: 146
Posted By Andrew R Stewart

This is news that thousands of riders will find...

This is news that thousands of riders will find hard to believe as they have lived with poor indexing with Shimano freewheels replacing their worn out SunTours. Sorry but shop experience proves this...
Forum: Framebuilders
07-02-20, 08:40 PM
Replies: 7
Views: 198
Posted By Andrew R Stewart

A fine file held flush against the face does much...

A fine file held flush against the face does much the same. But I will file face's corner with the shell's OD first to prevent a chip off of paint from traveling from the face and onto the shell's...
07-02-20, 08:35 PM
Replies: 8
Views: 146
Posted By Andrew R Stewart

I think your claim of 5mm c-c cog spacing for...

I think your claim of 5mm c-c cog spacing for SunTour cog sets is not correct. Perhaps for the more current ST stuff that does mimic Shimano's lead. But the ST stuff from the 1990s had cog spacing...
07-02-20, 07:04 AM
Replies: 10
Views: 270
Posted By Andrew R Stewart

I doubt this. The hub description sure seems to...

I doubt this. The hub description sure seems to be a Shimano 105 or 600. But we'll all find out soon. At the OP's weight and then adding a touring load I would not run a freewheel hub on a tour if I...
07-02-20, 07:01 AM
Replies: 13
Views: 235
Posted By Andrew R Stewart

Do you have a LBS open near you? If you're doing...

Do you have a LBS open near you? If you're doing a one time freewheel removal and if the freewheel is the 333 version (whose tool is no longer available other then used , maybe on EBay) Then I...
07-01-20, 08:22 PM
Replies: 13
Views: 303
Posted By Andrew R Stewart

There are other possibilities for a buzzy sound...

There are other possibilities for a buzzy sound during riding. perhaps having a more experienced person ride the bike might shorten the search. Andy
07-01-20, 08:20 PM
Replies: 10
Views: 270
Posted By Andrew R Stewart

The wheels are not OEM in my experience. Also...

The wheels are not OEM in my experience. Also likely done because of the French hub/cog system used as the spec one on that bike, the heilocomatic system was unique and not supported by any other...
07-01-20, 08:16 PM
Replies: 7
Views: 272
Posted By Andrew R Stewart

Looks to be a side wall scuff damage to me. It...

Looks to be a side wall scuff damage to me. It happens to be located along the strip of serrations so it's a bit obscured. Wouldn't be the forts tire to survive the initial injury only to later fail....
Forum: Framebuilders
07-01-20, 04:37 PM
Replies: 8
Views: 205
Posted By Andrew R Stewart

These offsets can be helpful when fillet or...

These offsets can be helpful when fillet or welding to avoid overlapping tubes. Thus one can construct the joint one tuba at a time and/or insure a tube's complete diameter is contacting the BB...
07-01-20, 04:34 PM
Replies: 13
Views: 303
Posted By Andrew R Stewart

Very doubtful it's a frame crack. Number one...

Very doubtful it's a frame crack.

Number one is a valve base nut being loose. number two is a cable/casing vibrating against something. Three might be a loose spoke. Four is a bar end plug that...
07-01-20, 04:30 PM
Replies: 13
Views: 283
Posted By Andrew R Stewart

Given the greater chain angles these days it is...

Given the greater chain angles these days it is getting more common to suffer with back pedaling chain drop from the rear's larger cogs to ones smaller. The chain is trying to seek a lesser angle....
07-01-20, 07:05 AM
Replies: 11
Views: 290
Posted By Andrew R Stewart

Brass nipples break too. Just no where as common...

Brass nipples break too. Just no where as common as Al ones. Generally we find that the spoke didn't enter the head of the nipple, it was a couple mms too short. Andy
06-30-20, 10:10 PM
Replies: 16
Views: 301
Posted By Andrew R Stewart

Scott I do get that, every day at work I talk...

Scott I do get that, every day at work I talk about this. That so many people have a hard time actually doing the "soft pedaling" thing is why the industry is moving away from drivetrains with many...
06-30-20, 09:57 PM
Replies: 54
Views: 1,482
Posted By Andrew R Stewart

I haven't read beyond this post, in this thread,...

I haven't read beyond this post, in this thread, so please excuse me if I repeat what's been said since.

This and Mad Honk's advice is at the foundation of what a professional shop starts with....
06-30-20, 09:36 PM
Replies: 14
Views: 318
Posted By Andrew R Stewart

The ST indexed systems of the 1990s was never...

The ST indexed systems of the 1990s was never intended to interchange with Shimano's stuff. As mentioned the cog to cog spacing was different and while a shift or two might be good after a few more...
06-30-20, 09:27 PM
Replies: 16
Views: 301
Posted By Andrew R Stewart

The first thing I note is the comment about...

The first thing I note is the comment about shifting the front under stress. When shifting the front der stress/pedal pressure IS NEVER a good idea. Where did you get the idea is was a good way to do...
06-30-20, 06:57 AM
Replies: 14
Views: 271
Posted By Andrew R Stewart

Simple levers and action/reaction stuff. The...

Simple levers and action/reaction stuff. The inner cable is trying to shorten between the tops of the arms (because some of the inner cable is being pulled into the lever at the bars). Depending on...
Forum: Framebuilders
06-30-20, 06:50 AM
Replies: 7
Views: 203
Posted By Andrew R Stewart

WGB- I'm just an hour East of the boarder. Once...

WGB- I'm just an hour East of the boarder. Once it opens up I hope to travel up to Dwight where our family cabins are and suffered serious wind damage a few weeks ago. If it works out we could hook...
Forum: Framebuilders
06-29-20, 10:07 PM
Replies: 7
Views: 203
Posted By Andrew R Stewart

If the fork bent back with no side deflection...

If the fork bent back with no side deflection (when impacted) then the steering alignment is not changed. The stability factor is. As mentioned the first thing to figure out is whether the steerer is...
Forum: Framebuilders
06-29-20, 09:54 PM
Replies: 3
Views: 134
Posted By Andrew R Stewart

I always have smiled at this type of question....

I always have smiled at this type of question. The correct post is the one that works. Not always the one that math predicts.

Seat tubes vary is real IDs, fabrication heat distorts to some degree...
06-29-20, 09:25 PM
Replies: 15
Views: 494
Posted By Andrew R Stewart

I think the furniture sticker police will come...

I think the furniture sticker police will come and take you away. They do double as rotor sticker patrol. Andy (showing his age)
06-29-20, 09:22 PM
Replies: 6
Views: 163
Posted By Andrew R Stewart

Trying to "restock" a 38 year old bike is wrought...

Trying to "restock" a 38 year old bike is wrought with challenges of both what was "stock" and what's currently available. As example is the component in question. Crank spindle "standards" were...
Forum: Framebuilders
06-29-20, 07:30 AM
Replies: 6
Views: 209
Posted By Andrew R Stewart

My head badge is a simple "S". I had a batch...

My head badge is a simple "S". I had a batch (actually on batch #2 (https://www.bikeforums.net/usertag.php?do=list&action=hash&hash=2) just recently) cut out by EMachineShop.com. I knew long ago...
Forum: Framebuilders
06-29-20, 07:22 AM
Replies: 10
Views: 309
Posted By Andrew R Stewart

I would use a smaller diameter seat post to...

I would use a smaller diameter seat post to initially bend out the lip. Using a combo of bending force and impacts against the smaller post from behind, taking care to mind the smaller post's end...
06-29-20, 07:17 AM
Replies: 3
Views: 104
Posted By Andrew R Stewart

For the cost of new inserts why rely on others'...

For the cost of new inserts why rely on others' being able to discern from poor photo? Andy
06-29-20, 07:15 AM
Replies: 4
Views: 139
Posted By Andrew R Stewart

While one could just duplicate the current wall...

While one could just duplicate the current wall thicknesses I would suggest the added leverage of the longer reach will want somewhat thicker walls. I suggest using seamless DOM 4130 cro moly. Andy
06-29-20, 07:12 AM
Replies: 13
Views: 313
Posted By Andrew R Stewart

Shop EBay for older stuff. My favorite for...

Shop EBay for older stuff. My favorite for current (and older too) is Phil Wood. Used Phils tend to be in better condition then other equally old brands. I have a pair of Campy Low Flange NR hubs...
Forum: Framebuilders
06-28-20, 03:48 PM
Replies: 6
Views: 234
Posted By Andrew R Stewart

Tom- Can you comment on the technique? Do you try...

Tom- Can you comment on the technique? Do you try to keep the tip on the lug's vertical wall, on the tube at the base of balanced and in the root of the shoreline? I assume that the pen's cup gets...
Forum: Framebuilders
06-28-20, 03:44 PM
Replies: 6
Views: 214
Posted By Andrew R Stewart

My understanding is that the alloys used for bike...

My understanding is that the alloys used for bike frames and the processing to shape then results in a grain structure that makes cracks propagate far faster then with steels (or Ti alloys). Thus...
06-28-20, 01:41 PM
Replies: 9
Views: 336
Posted By Andrew R Stewart

Who are you asking? Andy

Who are you asking? Andy
06-28-20, 01:37 PM
Replies: 5
Views: 176
Posted By Andrew R Stewart

Are you sure it's a wheel issue? Have you tried...

Are you sure it's a wheel issue? Have you tried the same wheels with different cassettes? The same cassettes on different wheels? How's the spoke tensions or chain wear? From the play it at face...
06-28-20, 01:32 PM
Replies: 17
Views: 402
Posted By Andrew R Stewart

Glad my suggestion was helpful after all. But as...

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...
06-27-20, 08:52 PM
Replies: 17
Views: 402
Posted By Andrew R Stewart

And given the low cost of a new/used ft der how...

And given the low cost of a new/used ft der how much time is this repair worth? Andy
06-27-20, 08:51 PM
Replies: 21
Views: 347
Posted By Andrew R Stewart

If the goal is a show grade result then you'll...

If the goal is a show grade result then you'll want the OEM guard, good luck on that one. If you want a period correct one then you already have that. The first photo shows the metal core of the OEM...
06-27-20, 05:22 PM
Replies: 21
Views: 347
Posted By Andrew R Stewart

This bike wil have a freewheel mounted cog set....

This bike wil have a freewheel mounted cog set. So a freewheel specific protector is where you start. Next up is the hubshell's seat shoulder for the freewheel and it's dimensional relationship to...
06-27-20, 02:47 PM
Replies: 6
Views: 156
Posted By Andrew R Stewart

Where are you? Are there LBS's in your area that...

Where are you? Are there LBS's in your area that have been in business for a number of years? Did they sell/service Mavic wheel back then? Andy
06-27-20, 02:45 PM
Replies: 9
Views: 336
Posted By Andrew R Stewart

Alcohol fueled beer can stoves and bivvy sacks...

Alcohol fueled beer can stoves and bivvy sacks are not my preference. I also like civvies for off bike days. I once penned a trailer which would become the tent at camp. Too much weight even for me...
Forum: Framebuilders
06-27-20, 02:01 PM
Replies: 12
Views: 378
Posted By Andrew R Stewart

Simple and stiff, just like I wish I was still:)...

Simple and stiff, just like I wish I was still:) Andy
Forum: Framebuilders
06-27-20, 02:00 PM
Replies: 6
Views: 214
Posted By Andrew R Stewart

I sure wouldn't offer this service. Al does not...

I sure wouldn't offer this service. Al does not like bending after it's been heat treated. Chainstay cracking is one of the more common failures with frames of any material. Andy
06-27-20, 01:54 PM
Replies: 9
Views: 336
Posted By Andrew R Stewart

Interesting mix of touring, where weight is of...

Interesting mix of touring, where weight is of secondary importance, and weight weeny stuff.

My interest is, of course, the frame jig. The framebuilding forum would be pleased to see photos of...
06-27-20, 01:51 PM
Replies: 7
Views: 178
Posted By Andrew R Stewart

I think the OP will find that modern cones will...

I think the OP will find that modern cones will be a class b/c fit at best to the hub's outer races. When Asia came on line to the US market one change was the bearing contact angle that was common....
06-27-20, 01:39 PM
Replies: 6
Views: 156
Posted By Andrew R Stewart

Are the pawls worn enough to have shape change?...

Are the pawls worn enough to have shape change? If not then I suggest leaving them as is. I've serviced many Mavic hubs and never replaced a pawl (excepting the one that got lost under the work...
06-26-20, 08:17 PM
Replies: 12
Views: 289
Posted By Andrew R Stewart

I run Campy Ergo 9 speed levers but on Shimano 9...

I run Campy Ergo 9 speed levers but on Shimano 9 speed cassettes so my understanding might be tilted... (by the ShiftMates I use)

Isn't Campy still using cog C-C spacing that's the same across the...
Forum: Framebuilders
06-26-20, 05:56 PM
Replies: 12
Views: 378
Posted By Andrew R Stewart

Cynikal- Why the third and square beam? A simple...

Cynikal- Why the third and square beam? A simple flat plate is all that's needed to hold the butt gage in a bench vice. The shorty versions are cute but I like the ability to rest the tub's length on...
Showing results 1 to 50 of 1000
 


 
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