Author Topic: Sandcast #97 restoration (Read 202913 times)

MoMo · « **Reply #825 on:** February 03, 2019, 12:28:03 PM »

Exquisite, the bike that is...Larry

MauiK3 · « **Reply #826 on:** February 03, 2019, 02:45:29 PM »

You braved the Artic conditions? That’s dedication!
I would love to have been there

SOHC4 Cafe Racer Fan · « **Reply #827 on:** February 03, 2019, 08:50:47 PM »

Nice. My buddy Brady Walker has been putting together the AHRMA displays at the IMS shows.

Bankerdanny · « **Reply #828 on:** February 06, 2019, 09:52:18 AM »

Quote from: markb on February 03, 2019, 09:07:25 AM

I took some time this weekend to go the Minneapolis Motorcycle Show.

I answered a lot of questions. It’s amazing how many people have at least heard of a sandcast.

Cool. The Chicago show is this weekend, I am looking forward to it. Unfortunately I will have to drive. Back in 2008 or so it was in the low 60's and I was actually able to ride my FJ1200 and MC parking was free.

Tews19 · « **Reply #829 on:** February 07, 2019, 07:55:39 PM »

Quote from: Bankerdanny on February 06, 2019, 09:52:18 AM

Quote from: markb on February 03, 2019, 09:07:25 AM
I took some time this weekend to go the Minneapolis Motorcycle Show.

I answered a lot of questions. It’s amazing how many people have at least heard of a sandcast.

Cool. The Chicago show is this weekend, I am looking forward to it. Unfortunately I will have to drive. Back in 2008 or so it was in the low 60's and I was actually able to ride my FJ1200 and MC parking was free.

Danny, any info about this event? Is it saturday and sunday?

Bankerdanny · « **Reply #830 on:** February 07, 2019, 08:00:23 PM »

Quote from: Tews19 on February 07, 2019, 07:55:39 PM

Quote from: Bankerdanny on February 06, 2019, 09:52:18 AM
Quote from: markb on February 03, 2019, 09:07:25 AM
I took some time this weekend to go the Minneapolis Motorcycle Show.

I answered a lot of questions. It’s amazing how many people have at least heard of a sandcast.

Cool. The Chicago show is this weekend, I am looking forward to it. Unfortunately I will have to drive. Back in 2008 or so it was in the low 60's and I was actually able to ride my FJ1200 and MC parking was free.

Danny, any info about this event? Is it saturday and sunday?

Yes. It's in Rosemont a couple miles from O'Hare Airpotrt. I go most years.

http://www.motorcycleshows.com/city/chicago-il-0

wi.st.rod · « **Reply #831 on:** February 08, 2019, 07:53:37 AM »

Looking forward to seeing this progress.

markb · « **Reply #832 on:** March 08, 2019, 07:57:50 AM »

My latest project is working on restoring brake disks. For now I have a NOS K1 disk until I can replace it with a correct restored one. I made a special tool for grinding the disks on a surface grinder.

I’m still experimenting but here’s where I am so far. Before…

…and after.

If you’re interested here is a thread that shows a little more detail about what I’m doing starting at reply #45.
http://forums.sohc4.net/index.php/topic,175601.25.html

SOHC4 Cafe Racer Fan · « **Reply #833 on:** March 08, 2019, 09:09:23 AM »

From what your tool looks like, your grinding not only takes out wear but can also address any warping. Can you also "thin" the rotor surface to lighten the disc?

markb · « **Reply #834 on:** March 08, 2019, 02:53:47 PM »

I think that's correct. The outside of the disk is now parallel with the mounting surface on the hub. When I flip it over to do the inside, the disk will be sitting right on the turntable so both side will be parallel to each other. I haven't done that yet. I'm going to wait until I get a courser wheel.

The wheel is thinner after grinding but not much. I only took about 0.005" of it. It would take a while to lighten it with this method.

Can550 · « **Reply #835 on:** March 08, 2019, 05:17:10 PM »

Like it a lot

Sent from my iPhone using Tapatalk

Stev-o · « **Reply #836 on:** March 12, 2019, 06:44:01 AM »

Looks great!

Godffery · « **Reply #837 on:** March 12, 2019, 07:41:59 AM »

Quote from: SOHC4 Cafe Racer Fan on March 08, 2019, 09:09:23 AM

From what your tool looks like, your grinding not only takes out wear but can also address any warping. Can you also "thin" the rotor surface to lighten the disc?

I provide a drilled & Thinned Rotor service if your looking for lighter. (Roughly half the weight of stock)

https://godfferysgarage.com/wp-content/uploads/28336422_332195967288423_6739062907242179043_o.jpg

markb · « **Reply #838 on:** May 20, 2019, 07:07:40 AM »

I’ve finally finished restoring the brake rotor. I think it turned out pretty good. The masking was a challenge because of the spokes and the rivets on the inside.

I tried different tapes and trimming with an exacto knife but couldn’t get decent results. I finally made a tool that has a hole the same size as the diameter of the rivet with a flat land around it.

Then I drilled the same size hole on the other end and machined an angle to make it sharp.

After trying masking tape, vinyl tape and some others I found that the tape that worked the best was duct tape. The flat end of the tool formed the tape around the rivet head.

Then the sharp end trimmed the tape perfectly.

Here’s a pic of the finished product on the outside…

…and the inside. Now #97 finally has a correct rotor!

SOHC4 Cafe Racer Fan · « **Reply #839 on:** May 20, 2019, 08:59:20 AM »

Nice detail solution.

markb · « **Reply #840 on:** June 01, 2019, 06:55:27 AM »

IT RUNS!!

I took #97 out for a short test ride last night. It’s tuned up, carbs synced and sounds great. I only went about a mile. Ran it up to 60 and through all 5 gears. Everything works. I have about a 15 second video (28MB) of it running that I would like to post but not sure how to do that. Can anyone point me in the right direction?

fastbroshi · « **Reply #841 on:** June 01, 2019, 07:21:52 AM »

Youtube might be the easiest way, or maybe Imgur. Not sure if you can upload vids there though.

markb · « **Reply #842 on:** June 04, 2019, 06:21:31 AM »

I think I got it to work. Click on the link below. It's a short video. I'll try to post a longer one later. But at least it proves it runs.

Tews19 · « **Reply #843 on:** June 10, 2019, 08:07:34 PM »

Excellent work! She sounds very smooth!

fastbroshi · « **Reply #844 on:** June 10, 2019, 09:26:31 PM »

I must be getting old, because wow, that sounds good even with a quiet exhaust.

markb · « **Reply #845 on:** June 11, 2019, 12:29:29 PM »

It's not as quiet as it sounds on my phone. I plan to post another video showing it rolling down the road and I'll get a good shot from behind.

markb · « **Reply #846 on:** June 16, 2019, 12:27:09 PM »

I decided to take #97 to a show (one of the reasons I wanted to make sure it runs).
It was a pretty big local show. There was close to 200 bikes there. After I saw the picture on the flyer I knew I had to bring mine. Both the local chapter of the AMCA and the local chapter of the VJMC were there.

Here’s a pic of it on display. It was nice that they put it on a stand right near the entrance. It definitely got a lot of attention. I was hoping it would do well.

It did better than I could have hoped for. The local VJMC has cool trophies, large, nicely polished and chromed metric wrenches. I got one for Best In Show.

The AMCA was also judging and I got the Junior First Award (first time entered) with 100 points!

They did comment about the chrome finish on the taillight bracket but didn’t deduct any points. Maybe it helped that in was the 50th anniversary for the bike (to the month) and the only sandcast there.

The icing on the cake though was the editor of the AMCA magazine was there and took pictures of #97.

He said they will be in the September/October edition. So like I said I couldn’t have asked for more. I feel very lucky and grateful for all the help I’ve gotten from the SOOC and SOHC4 sites. Thank you guys for all your help and support.

So I got the bike home and drained the gas tank, petcock bowl and carburetor bowls. I blew air down the fuel lines (lightly) with the drain screws loose and cranked the engine over for about 10 seconds (it ran for about 2 seconds) to try to suck any last gas out of the carbs. I don’t even know if that does anything, it just seemed like a good idea. Short of actually removing carbs and cleaning them is there anything else I should do? Should I actual pull them or not? It might be a while before the bike runs again. Although after the success this weekend I am toying with the idea of going to Barber.

MauiK3 · « **Reply #847 on:** June 16, 2019, 08:09:43 PM »

Wow, the #97 legend continues!
What an inspiration, I’m wondering where I could get my hands on a sandcast now, dangerous.

SOHC4 Cafe Racer Fan · « **Reply #848 on:** June 17, 2019, 10:02:01 AM »

Congratulations! The bike looks amazing.

markb · « **Reply #849 on:** June 18, 2019, 06:10:44 AM »

Thanks guys.

Quote from: markb on June 16, 2019, 12:27:09 PM

So I got the bike home and drained the gas tank, petcock bowl and carburetor bowls. I blew air down the fuel lines (lightly) with the drain screws loose and cranked the engine over for about 10 seconds (it ran for about 2 seconds) to try to suck any last gas out of the carbs. I don’t even know if that does anything, it just seemed like a good idea. Short of actually removing carbs and cleaning them is there anything else I should do? Should I actual pull them or not?

Anyone have any comments about my storage preparation? I was also thinking about fogging the cylinders, maybe changing the oil, etc.

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Author Topic: Sandcast #97 restoration (Read 202913 times)