CB750F First Project

[msimm43]

A couple of things to report.


I repainted the brakes this weekend.

After the first coat they looked really nice, so I waited 24 hours and put on a second coat. That did not work out as well.


Now a few of the pieces have this crap on them. Not everywhere, but enough to be a problem.

Also, I started to shorten my wiring harness. I am sure that this will clean up nicely, but right now it is a bit of a mess.

 

[Staffy]

Mate, yours is taking almost as long as mine but you've done such clean work. I'm really looking forward to seeing this one finished.

 

[benarmour]

I know it was quite a while ago msimm, but did you ever manage to get the adhesive off of the vinyl? I'm sure i read a little while back that rubbing a bit of thin motor oil onto it can help to get it off, if it's still there...

 

[Maritime]

IF that was appliance epoxy paint, you have to wait less than an hour or more than 7-10 days depending on temp and humidity to prevent the wrinkles you got. Looks like you will have to sand or strip and redo. Too bad cause it looked great in the first pics! Oh well I have done the same thing too.

 

[JRK5892]

that is because the parts where not cleaned man... that is oil and grease on the part, you have to wipe with acitone or prep... they have to be stripped and re shot... it is a picky paint

 

[msimm43]

That would make sense. I washed them with dish soap, and I was going to wipe them down with acitone after I hung them up for painting... and I forgot. Nice. It is funny though, the first coat went on really nice without any of the "crinkling" effect. It is quit possible that I grabbed it with my bare hand to admire the good looking paint between coats. Not sure if that would do it, but serves me right if it would ;D

It is not the appliance epoxy. I used that for my tank and seat, but not for this. The black is engine enamel. I put on the second coat 24 hours after as advised by the instructions on the can.

Here is a low quality shot of the tank and seat. Any good tips on wet sanding the appliance epoxy? (I am assuming I need to wet sand it before I shoot the blue on there, correct?)

The adhesive on the seat did come off, now it is just a matter of getting rid of all the dust.

 

[msimm43]

Here are the pics of the repainted brake parts.

 

[JRK5892]

have you thought about flushing the system with denatured alch that way you can run dot 5 and not have the paint get ruined? that is the main reason most people will powder the brake parts... do not watn to see all that work get eaten up

 

[JRK5892]

ahhh you shot the tank and tail in appliance epoxy???? it is not UV safe, it will yellow really bad in just a short time bud... i would wait a week for it to cure scuff and clear to protect it. when it yellow it looks like ass, i will see if i can dig up a tank i shot in it. not sure if i took a pic before i shot the white over with PPG

 

[msimm43]

Wow, that sounds like a lot of wrong.

Actually, I followed your lead on the appliance epoxy. My frame too. I wish I had not fallen off the the site for a while so I would have known your tank went yellow. A lot of the tank and most of the seat will have blue over it, so that should help. What is the best way to scuff up the tank and seat before clear coating (what grit paper, steel wool, or scrub pad?)

In terms of the the brake paint, the main reason I painted them was to save cost. I was planning on the just being really careful when I filled up the brake fluid. It may be wishful thinking, but that was the plan.

If I flush out the lines with denatured alch can I run dot 5? I believe that the manual says dot 3 or 4 (can't remember off the top of my head).

Also, I have new brake lines, so they are clean as can be, but I know the brake parts are full of crap. Can I clean the old gunk out of the parts without making the new lines worse?

Thanks for taking the time to call all of this stuff out. It sucks to hear, but I helpful in the end ;D

 

[JRK5892]

you are not in a bad spot man. you are ok... as far as what kind of paint to use out of a rattle can on that paint i honestly am not sure... personally i never knock the last color coat down with sand paper prior to clear as you will see the sanding marks. typically you can spray the clear within a very short time of the last base coat, that is why i am not really 100% sure what to do here, i have never top coated an epoxy paint with either another paint or clear so i am not sure how it will react... i was saying to scuff it, then reshoot the top base coat then clear, but again i am not sure how the epoxy will react with top coat. i think that the reson you can not top coat it for at least a week is that it will have to outgass much like a clear does (reason you can not wax a new paint job for weeks) so to be honest it is going to be kind of a crap shoot on this one. little internet hunting may tell you weather to use a lacquer based paint or acrylic... i am not 100%...
on the brake parts:
the main thing is the rubber, if you are running new lines you are great on that. the master is old so a rebuild is not the worst idea in the world. Personally rebuilding the front and rear brakes/master and replacing wheel bearings are the 2 things i do first on pretty much any build i have. I would replace the seals in the caliper and pop in a rebuild kit with new seals in the master, flush everything very well with non clorinated brake cleaner and then denatrued alc. I have never had good luck with dot 3 or 4 no matter how carefull i tend to be seems even the fumes casue the paint to ruffle ya know. you are not in a bad spot by any means man just offering some alternitaves and advice bud thats all

 

[msimm43]

Your "alternatives and advice" are always welcome and appreciated. In fact, your advice has accounted for about half of my build.

In regard to the paint, I am just going to wing it and see what happens. I have the blue to go over it, and a clear to go on top of that. If it all goes to pot, then maybe I will get one of those happy accidents where it looks so bad it somehow works ;D

Thanks for the info on the brakes too. I will work my way through that as well.

I will keep you posted how things turn out.

 

[msimm43]

Back from the dead. The standard issues of day to day living have pushed this project to the back corner of the garage, but...

I did a little bit of painting this weekend, and thought I would dust off the old thread.

Below is a pic of the tank and seat. The blue is a lot softer then the picture looks. More of a Carolina or SD Chargers powder blue.

The tape bubbled in a few spots, and I will have to clean it up. But you get the idea.

Hopefully I will get a chance to do a little more work in the next few weeks.