It's time to start a winter Project. The Red Bike

[5twins]

When drilling a disc, there are a couple important points to consider. First, for improved cooling, you want to create more surface area, and you will create the most by making the holes the same size as the disc is thick. Here's a thread on it .....

https://www.xs650.com/threads/drilled-disc-hole-sizes.59637/#post-692555

The second important point is you want the holes to cover the whole pad swept area. To achieve that, the edge of one hole should overlap the edge of the next one like so .....

Unfortunately, that old disc from Griz's stash doesn't meet either of those requirements. One more thing - to keep the pads scraped clean, you want to leave the holes sharp edged (don't countersink them). They look countersunk on that one. So, to me anyway, that disc is nothing more than shop wall art now, lol.

 

[jpdevol]

Unfortunately, that old disc from Griz's stash doesn't meet either of those requirements.

Sorry, I got lost on that statement and can't find my way; the rotor isn't drilled right or not a candidate for drilling? (I can't find the rotor in question).

 

[gggGary]

Sorry, I got lost on that statement and can't find my way; the rotor isn't drilled right or not a candidate for drilling? (I can't find the rotor in question).

He's whining about this one.

It obviously had been used for "quite a while", cleaned up fine on the lathe with a flap wheel in a hand grinder.
"It'll work just fine" LOL

 

[5twins]

Yes, I guess it will work, it's just not done properly. The holes don't overlap and most of them are too big. That means the whole pad surface won't be scraped clean and the most additional surface area hasn't been created. These discs are a dime a dozen, I'd just start over, lol.

 

[gggGary]

Hey 5T I'll send you an untouched rotor ,no charge, drill it and send it on to Kevin?

 

[5twins]

Well, I suppose I could do that, as long as he's in no hurry, lol. Send me a P.M. so we can work out the details?

 

[Kevin Werner]

I am moving slow on this. No hurries.

 

[Kevin Werner]

Looks like one more item on the shopping list, tapered rollers, and one more process to search in the forum. Tubes came out easy but I will put a straight edge on the triple clamps any way to ensure they are not twisted.

 

[Kevin Werner]

Cut the rear tire off the original 16" rim. 4 cuts to the rim on one half (180 to 220 degrees)and leveled the other side of the 20+(MDJ203) year old tire off the rim so I can take the rims and rear hub to the scrapper. PM if I need to save the drum hub and brake.

 

[gggGary]

why would you scrap the hub???

 

[gggGary]

yes save it!!!

 

[Jim]

why would you scrap the hub???

 

[Kevin Werner]

I will save it. I was gauging the need. The rim is bent so I will disassemble it. Who wants it for the freight? Backing plate included. 19inch chrome front rim too. Rear is bent.

 

[Kevin Werner]

I don't have a "shed of ill repute". I spent 40 or 50 years of my life saving "something in case I ever need it". I am still in costly therapy...

 

[Kevin Werner]

I found that a narrow punch at the closest angle possible to the casting base got the lower race moving on the stem. Tap, tap...go to the other side (really only about 120 degrees around the back of the stem), tap, tap.. Repeat. Squared up the tip on the disc sander first.

 

[gggGary]

You can stretch the rubber seal over the race to remove it so it's out of the way.
(now I tell you that)

 

[Kevin Werner]

Does the rubber seal stay with the new tapered roller bearing?

 

[gggGary]

Does the rubber seal stay with the new tapered roller bearing?

Yes reuse the stock seal.
IMO it's better n the ones that come in the no balls kit.

 

[Jim]

Does the rubber seal stay with the new tapered roller bearing?

The All Balls kit comes with a new lower seal. Use it or use the original... just don't use both.

 

[Kevin Werner]

My 11 and 12 size spoke wrench didn't fit, too small, the spokes on my rear wheel. I know I disassembled the front so I looked everywhere for a 13/14 combination. It's easy for you guys who have done this stuff forever... shit, the 8, 9 are bigger! Gauge I imagine now...