My '63 VBB2T project
Post Reply    Forum -> Not-So-Modern Previous123
Author Message
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sun May 12, 2019 7:16 am quote
Tierney wrote:
If you sand out those scratches. you will most likely remove most of the paint. It look like someone was using a DA sander without the sufficient knowledge to operate it. Or something got under the pad when said person was sanding and could not be bothered to look at what they were doing. My buddy in FL would say "that's what you get when you smoke the cheap stuff".
I donít think they go trough the paint, but they are quite deep. Donít know what to do with it..
Ossessionato
1976 Super (x 2), 1974 Primavera (x 2), 2006 Fly 150
Joined: 26 Sep 2013
Posts: 4515
Location: So Cal
Sun May 12, 2019 7:30 am quote
Iíve said this before. Nine times out of 10 when you strip a re-spray hoping to uncover nice original paint you find stuff like this. Most people donít paint perfectly good bikes. They do re-sprays to cover up unsightly dings, scapes, cuts, dents, and assorted boo boos like this.

It looks like someone put a buffing or sanding pad on a drill and applied to much pressure, and the mandrel dug into the paint.

The only way to remove scratches like that is to sand them out.
Ossessionato
1980 P200E, 1974 Primavera, 04 Ninja 250
Joined: 04 Apr 2013
Posts: 3670
Location: San Diego, CA
Sun May 12, 2019 7:42 am quote
Patience and the least grit possible...
Ossessionato
1976 Super (x 2), 1974 Primavera (x 2), 2006 Fly 150
Joined: 26 Sep 2013
Posts: 4515
Location: So Cal
Sun May 12, 2019 9:41 am quote
Yeah why not. Might as well give it a go.

Get a flat foam sanding block, a bucket of water, a towel, and some sheets of 600, 1000, 1500, and 2000 wet sandpaper.

The idea is to remove the paint surrounding the scratches with progressively finer grits of paper down to the bottom level of the scratches so the scratches arenít visible. The scratches left by the finest sandpaper can then be buffed out.

Iíd probably start with 600 grit but you may want to start with 1000.

Put a little dishwashing liquid in the water to keep the paper from clogging up and soak the paper for a few minutes before you start.

Start sanding in an inconspicuous place. Use long strokes. Donít press too hard but keep even pressure on the sanding block.

Stop every few passes, wipe the surface with the towel, and check your work.

When you canít feel the scratches, switch to the next highest grit paper to sand out the scratches left from the previous grit. Then go to the next highest grit to remove the scratches left from that paper. And so on. Rubbing compound will remove 2000 grit sanding marks.

Like Tierney said, if the scratches are deep youíre going to need to take off quite a bit of paint before they start to disappear. You may decide it isnít worth it.

Good luck.
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sun May 12, 2019 11:16 am quote
SoCalGuy wrote:
Yeah why not. Might as well give it a go.

Get a flat foam sanding block, a bucket of water, a towel, and some sheets of 600, 1000, 1500, and 2000 wet sandpaper.

The idea is to remove the paint surrounding the scratches with progressively finer grits of paper down to the bottom level of the scratches so the scratches arenít visible. The scratches left by the finest sandpaper can then be buffed out.

Iíd probably start with 600 grit but you may want to start with 1000.

Put a little dishwashing liquid in the water to keep the paper from clogging up and soak the paper for a few minutes before you start.

Start sanding in an inconspicuous place. Use long strokes. Donít press too hard but keep even pressure on the sanding block.

Stop every few passes, wipe the surface with the towel, and check your work.

When you canít feel the scratches, switch to the next highest grit paper to sand out the scratches left from the previous grit. Then go to the next highest grit to remove the scratches left from that paper. And so on. Rubbing compound will remove 2000 grit sanding marks.

Like Tierney said, if the scratches are deep youíre going to need to take off quite a bit of paint before they start to disappear. You may decide it isnít worth it.

Good luck.
Geez, thanks for this explanation!
Few questions if you don't mind:
You say to switch to the next grit when I don't feel the scratches. Do you mean by hand? Or with my nail?
I was reading a bit this afternoon, and people advised 2000, 2500 and 3000.
What do you think?

In general: I only have this on the front of my legshield, especially on the right side (when in front of the scoot). Fortunately not on the rest!

Thanks again!
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sun May 12, 2019 11:23 am quote
Btw: it looks worse on picture
Ossessionato
1976 Super (x 2), 1974 Primavera (x 2), 2006 Fly 150
Joined: 26 Sep 2013
Posts: 4515
Location: So Cal
Sun May 12, 2019 1:22 pm quote
Well you said the gouges were deep. Wouldnít hurt to start with a finer grit, itíll just take longer. After youíve done it a few times you get a feel for how much paint you can safely remove with different grits. The scratches will get fainter and fainter as you sand the surrounding paint. You donít want them to completely disappear until youíve used the finest grit, if that makes sense.

When youíre finished sanding the paint will look hazy. Youíll have to rub the final final sanding scratches out with compound. A rotary buffer or d.a. polisher will be helpful.
Ossessionato
1980 P200E, 1974 Primavera, 04 Ninja 250
Joined: 04 Apr 2013
Posts: 3670
Location: San Diego, CA
Sun May 12, 2019 1:38 pm quote
Iíd just go until they no longer bug you, not necessarily until they are gone.
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sun May 12, 2019 2:19 pm quote
SoCalGuy wrote:
Well you said the gouges were deep.
Thatís true. Donít laugh, but I said that based on the pictures
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Mon May 13, 2019 1:26 am quote
OK. Went to a car shop this morning for advise.

This is the plan:

1. Wet sand with 3M Trizac P3000
2. Compound with 3M Fst Cut Plus Extreme
3. Polish with 3M Extra Fine Plus

Would you guys do the complete Vespa with one of these steps in order to blend the problematic area into the rest?

3Mtrizact3000w-1.jpg
For wet sanding, on the DA.

IMG_6693.jpg
Compound and polish afterwards.

Ossessionato
1976 Super (x 2), 1974 Primavera (x 2), 2006 Fly 150
Joined: 26 Sep 2013
Posts: 4515
Location: So Cal
Mon May 13, 2019 10:48 am quote
You've got the goods right there. You may not have to sand the whole bike but Iíd definitely compound and polish it. Prepare to be amazed. PerfectIt is good stuff.
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Mon May 13, 2019 11:57 am quote
SoCalGuy wrote:
You've got the goods right there. You may not have to sand the whole bike but Iíd definitely compound and polish it. Prepare to be amazed. PerfectIt is good stuff.
Yep. Thatís the plan. Wetsand the problematic areaís and then compound and polish the whole bike.
Ossessionato
1980 P200E, 1974 Primavera, 04 Ninja 250
Joined: 04 Apr 2013
Posts: 3670
Location: San Diego, CA
Mon May 13, 2019 12:14 pm quote
+1 on perfect it
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Tue May 14, 2019 1:40 am quote
Went to pickup the 3M Trizact 3000 grit this morning. Decided to buy a 1000 grit as well. Will still start with the 3000, but if that doesn't work I'll switch to 1000 and then again 3000. Also bought an interface pad, to be sure to be able to follow the curve!
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sat May 18, 2019 10:31 am quote
Okay.. The misses has a new kitchen, and was organizing it today, so had some time to work on the Vespa...

Lost some paint in the process, but like the outcome!

First wetsanded to get rid of most of the scratches, then the first product (Fast Cut Plus Extreme). Then the second one (Extra Fine Plus). The second one gave some white spiccles, so I stopped using it.

Put the cowls back on, replaced the front and rear brake cables, put a rear brake light switch on it.

Feeling a bit sad about the paint that's gone on the legshield, but on this scoot that doesn't have to ba an issue.

Thoughts?

IMG_6745.jpg
90% of the scratches gone, but also some paint..

IMG_6747.jpg

IMG_6748.jpg

IMG_6749.jpg

IMG_6750.jpg

IMG_6751.jpg

IMG_6752.jpg

IMG_6753.jpg

IMG_6754.jpg

IMG_6755.jpg

Hooked
Honda elite
Joined: 19 Jun 2007
Posts: 378
Location: California
Sat May 18, 2019 12:27 pm quote
oh my gosh!
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sat May 18, 2019 12:46 pm quote
hibbert wrote:
oh my gosh!
Is that Oh my gosh ?
Or oh my gosh ?

Ossessionato
1976 Super (x 2), 1974 Primavera (x 2), 2006 Fly 150
Joined: 26 Sep 2013
Posts: 4515
Location: So Cal
Sat May 18, 2019 12:48 pm quote
Good work! Now just get that last bit of green off, clean the wheels up and ride that thing with pride.
Hooked
Honda elite
Joined: 19 Jun 2007
Posts: 378
Location: California
Sat May 18, 2019 12:51 pm quote
the first one DD with thumbs up!
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sat May 18, 2019 1:01 pm quote
SoCalGuy wrote:
Good work! Now just get that last bit of green off, clean the wheels up and ride that thing with pride.
Thanks!
Gonna put the seat on as well first
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sat May 18, 2019 1:06 pm quote
On that last pic, it seems the back wheel is out of line. What to do?
Addicted
GL, PK, PE200
Joined: 24 Apr 2012
Posts: 531
Location: Deep in the heart of Texas
Sat May 18, 2019 2:18 pm quote
DD_VES wrote:
On that last pic, it seems the back wheel is out of line. What to do?
Change your motor mounts. They are rubber and deforms over the years. Can be done with the motor in but easier with motor out.

BTW, Great job!!!
Enthusiast
'63 VBB2T - '18 300 GTS Super Notte
Joined: 26 Apr 2019
Posts: 57
Location: Belgium
Sun May 19, 2019 4:34 am quote
Checked it today, and a big part of the problem is the angle of the picture. After summer Iím going to rebuild the engine, and Iíll do the bushings then.
Cross Egypt Challenge - A 2400km ride throughout Egypt   Vespa Wasp Pin Badges   Yelcome Leather Top Cases and Roll Bags for Piaggio Vespa PX LX LXV GTS GTV
Post Reply    Forum -> Not-So-Modern Previous123
[ Time: 0.3047s ][ Queries: 25 (0.0515s) ][ Debug on ]