Author Topic: 1972 CB750K2 (start from scratch) project. Cases back together (Read 102596 times)

Davez134 · « **Reply #175 on:** February 05, 2015, 11:24:22 AM »

Seller refunded my money, said he is going to work on another set based off measurements I gave him. Stand up guy.

timbo750 · « **Reply #176 on:** February 05, 2015, 12:12:42 PM »

You might want to tell him also that there are others interested. Maybe he should join the forum and put an ad in the classified section.

Davez134 · « **Reply #177 on:** February 05, 2015, 12:19:24 PM »

Quote from: timbo750 on February 05, 2015, 12:12:42 PM

You might want to tell him also that there are others interested. Maybe he should join the forum and put an ad in the classified section.

Yeah I told him about the forum. Said he wants to get it right first, but I told him there is definitely an interest.

Davez134 · « **Reply #178 on:** February 06, 2015, 06:28:33 AM »

Well, I think I successfully saved these.
Rust removed:

High temp paint to stop further rust:

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Davez134 · « **Reply #179 on:** February 06, 2015, 08:45:52 AM »

This is done too. I wish I took a "before" pic

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Restoration Fan · « **Reply #180 on:** February 06, 2015, 11:50:13 AM »

Quote from: Davez134 on February 06, 2015, 08:45:52 AM

This is done too. I wish I took a "before" pic

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That's gorgeous!
Did you paint that or use something like Mother's Back to Black?

Davez134 · « **Reply #181 on:** February 06, 2015, 12:14:40 PM »

Tried back to black, wasn't working so well cause the surface wasn't worn evenly, so there were dark spots. Ended up painting with rust-oleum black plastic paint, used plastic "adhesion promoter" spray after prep and just befor paint.

Davez134 · « **Reply #182 on:** February 11, 2015, 09:19:10 AM »

Carbs done!!! Love to hate these things

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Davez134 · « **Reply #183 on:** February 13, 2015, 03:25:39 PM »

I finally got the front caliper I've been waiting for, but this insert is on the wrong side! Been searching for info on how to get it out, but no luck. If I cant get this thing out im gonna lose it

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Davez134 · « **Reply #184 on:** February 13, 2015, 04:42:23 PM »

So It wont come out and now is deformed after many attempts and different methods. seems to be rusted solidly in there. I'm done. Off to ebay to find a reproduction body.

timbo750 · « **Reply #185 on:** February 13, 2015, 04:55:20 PM »

There are 2 ways to get it out. What worked for me was a screw into insert and pulling it out. The other that I have read about is cutting a nail with a flat head down to length so you can insert from within the caliper and then pull it out. I would also try some heat - just enough so you need to use a glove to hold it as the aluminum will expand quicker than the steel insert.

Davez134 · « **Reply #186 on:** February 13, 2015, 05:01:43 PM »

Quote from: timbo750 on February 13, 2015, 04:55:20 PM

There are 2 ways to get it out. What worked for me was a screw into insert and pulling it out. The other that I have read about is cutting a nail with a flat head down to length so you can insert from within the caliper and then pull it out. I would also try some heat - just enough so you need to use a glove to hold it as the aluminum will expand quicker than the steel insert.

Thanks man, I tried all those, including heat, PB blaster, letting cool, heat again. It was so stuck/corroded in there. Its deformed now, so I'm going to try and find another insert (good luck) and if not, just buy a repro caliper. I want to get on with my project.

Davez134 · « **Reply #187 on:** February 14, 2015, 01:27:18 PM »

Moved on from the caliper to other things today. I got front forks all done. I emailed progressive about using the spacers with their spring kit, and I think I got it figured out. I guess the final adjustment will be made after first few rides, but Here is what I have for now. I set fork oil level at 175mm. I put springs in, washer on top of spring, then cut the PVC spacer to 20mm. I'm about 175 pounds.

Davez134 · « **Reply #188 on:** February 17, 2015, 03:05:04 PM »

It's weird that everything brake related that can go wrong, has. Finally something right. While I'm still trying to repair front caliper, I got this done. Was going to paint, but decided to polish to match my forks. New o rings, polished pin too. Moves so smooth!

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edwardmorris · « **Reply #189 on:** February 17, 2015, 03:33:51 PM »

Cool. What size o-rings are you using? IIRC these were NLA and the next size up was too big. I ended up getting Acura Fuel Injector o-rings from a Japanese seller for this. They are the exact same size as OE.

Davez134 · « **Reply #190 on:** February 17, 2015, 03:47:17 PM »

Not 100% sure. Went to a local store with huge supply of o-rings, took old ones with me. The numbers 9.?? x 1.8 stand out, but I'll have to look at receipt later when I'm home. Now if I could only find a store that carries odd brake line parts!

edwardmorris · « **Reply #191 on:** February 17, 2015, 05:13:56 PM »

10x1.7mm is the correct size, so yours is pretty close. I went with these

http://www.ebay.com/itm/Acura-Honda-Set-of-6-Fuel-Injector-O-Ring-10x1-7mm-91302-P0A-A00-Ishino-/360907711029?pt=Motors_Car_Truck_Parts_Accessories&hash=item5407c6a235&vxp=mtr

Davez134 · « **Reply #192 on:** February 17, 2015, 05:35:43 PM »

Quote from: edwardmorris on February 17, 2015, 05:13:56 PM

10x1.7mm is the correct size, so yours is pretty close. I went with these

http://www.ebay.com/itm/Acura-Honda-Set-of-6-Fuel-Injector-O-Ring-10x1-7mm-91302-P0A-A00-Ishino-/360907711029?pt=Motors_Car_Truck_Parts_Accessories&hash=item5407c6a235&vxp=mtr

Did yours have washers in there as well? Mine did not, but I see some parts diagrams with them, some without. I don't see how they would fit anyways, tight fit as-is.

edwardmorris · « **Reply #193 on:** February 17, 2015, 06:40:11 PM »

Don't think so, I'll check and see. All the h/w is zinced up and packed away in ziplocs for now. The washers are 0.1 and 0.2 mm respectively, so even if they were on, I bet they got vaporized

Davez134 · « **Reply #194 on:** February 17, 2015, 09:18:27 PM »

No worries. I'm not going to put any in there. Just wondering.

Davez134 · « **Reply #195 on:** February 20, 2015, 04:37:29 PM »

Avon roadriders put on rims today. 3.25 front, 4.00 rear

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Davez134 · « **Reply #196 on:** February 22, 2015, 05:30:08 PM »

Motor is finally in the frame!

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edwardmorris · « **Reply #197 on:** February 22, 2015, 08:12:31 PM »

Sweet! Should be a speedy build from here on...

Davez134 · « **Reply #198 on:** February 22, 2015, 08:25:25 PM »

Yeah. This was a big step. The moment I have been waiting for for 6 months!

Davez134 · « **Reply #199 on:** February 23, 2015, 05:38:44 AM »

Quote from: calj737 on February 23, 2015, 04:32:02 AM

I'm thinking you need to take a week off from work and turn this baby into a fully dressed roller! All the hard parts are done, so it could go quickly from here-

I work today, but have Tuesday through Friday off. Should get a lot done. Hagon shocks are ordered and hopefully will be here before Friday.

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Author Topic: 1972 CB750K2 (start from scratch) project. Cases back together (Read 102596 times)