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Search: Posts Made By: Andrew R Stewart
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Forum: Framebuilders
11-29-22, 08:50 PM
Replies: 4
Views: 156
Posted By Andrew R Stewart

Steve- I think you will get similar replies as...

Steve- I think you will get similar replies as you did in the Bike Mechanics thread you started (70+ replies to date).

One of the questions i had, in that other thread, is if the seat post fit is...
11-28-22, 09:10 AM
Replies: 18
Views: 331
Posted By Andrew R Stewart

A steel frame will transfer to an Al post a...

A steel frame will transfer to an Al post a surface amount of rust. Unsure if that's what is the case here.
I'd rather see rust on an Al post then AlOxide:) Andy
11-28-22, 09:07 AM
Replies: 3
Views: 155
Posted By Andrew R Stewart

This type of need is why those who fix up bike a...

This type of need is why those who fix up bike a bunch (neighbors, family, friends or flipping) should have a good relationship with a LBS. Not only can they give the usual advise but have much more...
11-27-22, 08:48 PM
Replies: 10
Views: 215
Posted By Andrew R Stewart

More data would help us help you. QR or nutted...

More data would help us help you. QR or nutted axle? Cassette or freewheel? Its tough for us when you use mixed dimensions (hubs with tires). Yes, 26"/559 ISO wheels can be had with a 135 wide...
Forum: Framebuilders
11-27-22, 10:07 AM
Replies: 5
Views: 150
Posted By Andrew R Stewart

Tom- Did you apply a rust inhibitor (FrameSaver)...

Tom- Did you apply a rust inhibitor (FrameSaver) inside the tubes too? If not than I would just use a solvent first, maybe kerosene or a SafetyKleen shop tank. Any chemical paint removal should be...
Forum: Framebuilders
11-24-22, 03:28 PM
Replies: 14
Views: 308
Posted By Andrew R Stewart

I visited one of our community's maker spaces...

I visited one of our community's maker spaces shortly after I had moved back to Rochester. After a couple of evenings I decided to not return, Not because of the management or space (although the ban...
Forum: Framebuilders
11-24-22, 10:08 AM
Replies: 5
Views: 302
Posted By Andrew R Stewart

Not touch the decals during the paint rubbing...

Not touch the decals during the paint rubbing out??? How clean are you aiming for. There are auto industry products that are made for this stuff. Will there be an after cleaning clear coat?

I had...
Forum: Framebuilders
11-24-22, 09:59 AM
Replies: 14
Views: 308
Posted By Andrew R Stewart

Eric- I have rocked my 350lbish 2x3 cast surface...

Eric- I have rocked my 350lbish 2x3 cast surface plate up and onto 2 of the 3 pads when cold setting a built frame's main triangle before. Took a 1" bar bell shaft about 4 feet long. What amazed me...
11-24-22, 09:25 AM
Replies: 23
Views: 395
Posted By Andrew R Stewart

"Also be aware that Shimano 11-speed front...

"Also be aware that Shimano 11-speed front derailleurs use virtually no slack in the cable, unlike previous 8-, 9-, and 10-speed generations. Then there is the matter of the converter pin, whose...
11-23-22, 10:09 PM
Replies: 23
Views: 395
Posted By Andrew R Stewart

I don't care too much about the BB's being...

I don't care too much about the BB's being centered as it's the rings and crank arms that my body interfaces with. The BB only get those parts where the rest of the bike and my body can deal with...
Forum: Framebuilders
11-23-22, 04:49 PM
Replies: 14
Views: 308
Posted By Andrew R Stewart

MY first thought is how stiff the table saw top...

MY first thought is how stiff the table saw top is with such a localized force clamped to it (the whipping post). Most pre made posts I've seen have a fairly small diameter base.

Second was that...
Forum: Framebuilders
11-23-22, 04:35 PM
Replies: 21
Views: 1,281
Posted By Andrew R Stewart

Doug's Anvil mitering fixture wasn't there when I...

Doug's Anvil mitering fixture wasn't there when I did the brazing class. We used his old one that is based on a huge collet chuck, the collets were swapped out for each tube diameter. I was so...
11-23-22, 04:27 PM
Replies: 7
Views: 157
Posted By Andrew R Stewart

As usual, good advice. One can rotate the...

As usual, good advice. One can rotate the caliper/center bolt unit a bit past center so that when the backing nut is fully tight and the center bolt did it's slight spin thing it ends up on center....
11-23-22, 10:05 AM
Replies: 30
Views: 454
Posted By Andrew R Stewart

Before the cable and housing is replaced look at...

Before the cable and housing is replaced look at the original set up for any possibl;e changes with the new. The imaged housing damage is likely from rubbing against a tire or some other thing....
11-23-22, 09:56 AM
Replies: 23
Views: 395
Posted By Andrew R Stewart

"the cranks (not OEM) are not centered" with...

"the cranks (not OEM) are not centered" with respect to what? A published chain line dimension?

It seems to me that the spacers placed on the non drive side was done to allow better ft shifting...
11-22-22, 07:07 PM
Replies: 24
Views: 496
Posted By Andrew R Stewart

This topic, frame/fork alignment, has been...

This topic, frame/fork alignment, has been discussed many times before. There's quite a number of threads one can search for. here's one from 2017 where I describe a low cost "home" alignment check. ...
11-22-22, 09:39 AM
Replies: 37
Views: 763
Posted By Andrew R Stewart

Some carbon frames have had a release agent...

Some carbon frames have had a release agent applied to the insides of the frame, to better allow the compression bladder to be removed after inflation and curing.

Epoxy makes for a poor...
11-21-22, 09:14 PM
Replies: 20
Views: 348
Posted By Andrew R Stewart

Perhaps but with most current bikes having...

Perhaps but with most current bikes having vertical drop outs and the drive side QR portion is a simple nut and bolt (compared to the LH side's cam and pivot) I still suggest a rocking force is at...
11-21-22, 09:57 AM
Replies: 14
Views: 385
Posted By Andrew R Stewart

Back when indexing was just becoming "the way" I...

Back when indexing was just becoming "the way" I use to describe component interchangeability this way. "Everything MicroSoft knows about planned obsolescence and compatibilities was learned from...
11-21-22, 09:53 AM
Replies: 24
Views: 359
Posted By Andrew R Stewart

One issue with ft ders that are intended for 50+...

One issue with ft ders that are intended for 50+ T rings and used with much smaller rings is that the cage's lower edges have a fairly large curvature, to best match up with the larger ring's...
11-20-22, 10:46 PM
Replies: 20
Views: 348
Posted By Andrew R Stewart

I will suggest that a QR skewer noise is not as...

I will suggest that a QR skewer noise is not as much a crank driving the wheel as is the rider's side to side rock/force on the bike. Andy
11-20-22, 09:03 PM
Replies: 20
Views: 348
Posted By Andrew R Stewart

Some hubs (usually cup and cone designs) have an...

Some hubs (usually cup and cone designs) have an external "rubber" seal on the LH side. This seal often has a lip or contoured edge that interfaces with the hub shell. This interface can cause some...
11-20-22, 08:56 PM
Replies: 76
Views: 1,823
Posted By Andrew R Stewart

Seat post fit and sizing is a repeating topic...

Seat post fit and sizing is a repeating topic here. A few years ago i, actually, measured some "27'2"mm posts I have and posted their measurements. here's the link to that thread Another delay seat...
Forum: Framebuilders
11-20-22, 08:36 PM
Replies: 21
Views: 1,281
Posted By Andrew R Stewart

Had a Clausing 85208525 been available when i was...

Had a Clausing 85208525 been available when i was looking I likely would have bought it. But in hindsight and with more experience I am glad that my mill has a R8 spindle taper and not a M2 or B&S #7...
11-20-22, 08:19 PM
Replies: 76
Views: 1,823
Posted By Andrew R Stewart

If only the clamp's ID were the issue one could...

If only the clamp's ID were the issue one could shim just that and the clamp wouldn't be on the edge of closing up. However I agree with Francis in that the slot also looks to be closing up.

If a...
11-20-22, 07:55 PM
Replies: 8
Views: 367
Posted By Andrew R Stewart

Not always so. When looking to expand one's...

Not always so. When looking to expand one's customer list it can pay to service event rides and offer business place (as it is post C19...) visits. I've done event service quite a few times and one...
Forum: Framebuilders
11-20-22, 01:56 PM
Replies: 21
Views: 1,281
Posted By Andrew R Stewart

My mill tuns off a 120V 20A house line. Spindle...

My mill tuns off a 120V 20A house line. Spindle taper is R8 with a home made draw bar. Weighs about 900lbs. Not sure of the year of birth but I suspect early 1980s. It has a mix of metric and SAE...
11-19-22, 10:59 AM
Replies: 7
Views: 196
Posted By Andrew R Stewart

Sure sounds like you're experiencing chain...

Sure sounds like you're experiencing chain friction due to the extreme angles it runs at when in the small/big cogs.

What to do? Live with it as a cost of buying into the "better" system that...
11-19-22, 10:39 AM
Replies: 20
Views: 348
Posted By Andrew R Stewart

2nd vid is much better at providing the noise. I...

2nd vid is much better at providing the noise. I would want to try a few things to see if I could narrow down the source. Remove the chain from the ring and while keeping the chain from touching...
11-18-22, 05:17 PM
Replies: 8
Views: 274
Posted By Andrew R Stewart

Low tire pressures would lend support for my...

Low tire pressures would lend support for my suggestion. If the tire beads did come off the rim's seating ledge too low a pressure (on reinflating the tire) might not have been sufficient to lift the...
11-18-22, 05:07 PM
Replies: 20
Views: 348
Posted By Andrew R Stewart

All I hear is the ratchet clicks and some...

All I hear is the ratchet clicks and some breathing, no undo noise. But I'll bet someone here mentions checking the der hanger alignment (which seems to be a favorite thing to blame for all kinds of...
11-18-22, 01:23 PM
Replies: 9
Views: 188
Posted By Andrew R Stewart

As long as the rim's interior has no spoke nipple...

As long as the rim's interior has no spoke nipple access holes, or nipple heads sticking above the rim bed, no liner is needed.

By "mag wheels" I assume you mean a compression spoked wheel, and...
11-17-22, 08:01 PM
Replies: 8
Views: 274
Posted By Andrew R Stewart

A sometimes thing is when a bike sits around for...

A sometimes thing is when a bike sits around for a long time and the tires have bled down in pressure so much that the tire's beads become unseated. Then the bike is pulled out and the tires are...
11-16-22, 11:50 AM
Replies: 14
Views: 4,156
Posted By Andrew R Stewart

There are times when the intended post size...

There are times when the intended post size didn't fit a specific frame due to heat related distortion. The usual fix is to use the next size smaller post, faster then addressing the seat tube side...
11-16-22, 11:39 AM
Replies: 7
Views: 298
Posted By Andrew R Stewart

Some low cost pedals use a bushing at the...

Some low cost pedals use a bushing at the inner/thicker end. While a bushing is a bearing it isn't one with balls. Andy
11-16-22, 11:35 AM
Replies: 50
Views: 1,516
Posted By Andrew R Stewart

When I had my own shop in the 1990s I did a...

When I had my own shop in the 1990s I did a monthly sales as a % of year total sales assessment. IIRC the numbers were J- 2%, F- 3%, M- 7%, A- 10%, M- 15%, J- 18%, J- 16%, A- 12%, S- 8%, O- 4.5%, N-...
11-15-22, 10:36 PM
Replies: 7
Views: 298
Posted By Andrew R Stewart

Peter?- Looks like a radial contact cartridge...

Peter?- Looks like a radial contact cartridge bearing which will have no cone, the "lock nut" is only to secure the bearings/axle and has no bearing load aspect.

One trick that I've used for this...
11-14-22, 06:28 PM
Replies: 7
Views: 166
Posted By Andrew R Stewart

Many of the removable (thus threaded into a...

Many of the removable (thus threaded into a welded on base) brake boss use a thread locking compound to add extra insurance from a boss loosening from its base. Andy
11-11-22, 09:35 PM
Replies: 22
Views: 437
Posted By Andrew R Stewart

Pad spreading tool- I use a clean cone wrench...

Pad spreading tool- I use a clean cone wrench with the pads still in place. Andy
11-11-22, 10:34 AM
Replies: 22
Views: 437
Posted By Andrew R Stewart

As long as the brake works well with the new pads...

As long as the brake works well with the new pads (doesn't rub, applies sufficient stopping "power") why would one deal with fluid? Now if there's other issues that are fluid related (leaks, air in...
11-10-22, 10:30 AM
Replies: 29
Views: 578
Posted By Andrew R Stewart

As spokes rarely break at their mid sections the...

As spokes rarely break at their mid sections the strength of that portion is rarely an issue. The vast majority of spoke failures are at the ends, the elbow or the threading. Far more common is the...
11-10-22, 10:21 AM
Replies: 11
Views: 319
Posted By Andrew R Stewart

Some brands/models of tires do have a breaker...

Some brands/models of tires do have a breaker belt molded into the casing that are not black in color. I have thought these belts are a plastic of sorts. Some Schwalbes have a green belt, as example....
11-07-22, 11:54 PM
Replies: 13
Views: 355
Posted By Andrew R Stewart

Which is why I would mechanically remove the bent...

Which is why I would mechanically remove the bent steerer from the crown. And depending on resulting fit up with the replacement steerer either brass or silver it back in. The images suggest a chrome...
11-07-22, 09:53 PM
Replies: 13
Views: 355
Posted By Andrew R Stewart

Is this bike a rider or a wall hanger? The "best"...

Is this bike a rider or a wall hanger? The "best" repair method is to replace the steerer. The issue I have with a straightening and continuing to ride path is the lack of being able to easily and...
11-05-22, 08:40 PM
Replies: 8
Views: 255
Posted By Andrew R Stewart

That was likely championed as a great aspect of...

That was likely championed as a great aspect of these pedals when they were offered:) Andy
11-04-22, 09:53 PM
Replies: 3
Views: 218
Posted By Andrew R Stewart

Mafac Racer brakes (and other models I have dealt...

Mafac Racer brakes (and other models I have dealt with) used shifter cables for the straddle. Sometimes the head needed size deduction to better fit the brake arm's end. One trick we did was to grind...
11-04-22, 08:34 PM
Replies: 11
Views: 304
Posted By Andrew R Stewart

Key cylinders can live a hard life. I've dealt...

Key cylinders can live a hard life. I've dealt with a number over the years that became inconsistent in the key opening the lock. The usual situation is a lot of exposure to the elements, the lock...
11-04-22, 08:27 PM
Replies: 8
Views: 250
Posted By Andrew R Stewart

I'm glad that the shop stepped up to help out....

I'm glad that the shop stepped up to help out. The earlier post seemed to read that they were of no help. It is nice to have the fuller picture explained with the first post. My reply would have been...
11-04-22, 09:06 AM
Replies: 11
Views: 304
Posted By Andrew R Stewart

What aspect of your lock is sticking? The key...

What aspect of your lock is sticking? The key cylinder? The "U" hoop's ends that enter the "I" end?

BTW never heard "D" used to describe these locks, we always called them "U" locks. Andy
11-04-22, 09:03 AM
Replies: 8
Views: 250
Posted By Andrew R Stewart

I have seen AL posts bend as you describe. Not...

I have seen AL posts bend as you describe. Not common (no where as common as steel BMX posts bending:)) but can happen. I always attributed the bending to a combo of large forces and low strength...
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