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Molto Verboso
Vespas 1964 GS160, 1965 SS180, 1977 V9A1T, 1983 PX150E
Joined: 16 Apr 2011
Posts: 1423
Location: Siam
Sun Apr 12, 2020 5:52 pm quote
Is the black wrinkle paint on the cylinder cover original, or did you re-paint? It looks good. As far as I know it should be that color and texture.

Is the high tension coil (brown Bakelite) working? I tried to get one to work on my GS160. Now I've got four or five of those brown coils, a couple original and a couple reproduction, no luck. I finally gave up and put a Taiwan made coil on that is super reliable.
Member
Vespa 125 VMA, Vespa SS 180
Joined: 14 Feb 2018
Posts: 44
Location: Minneapolis, MN
Mon Apr 13, 2020 1:40 pm quote
Quote:
Is the black wrinkle paint on the cylinder cover original, or did you re-paint? It looks good. As far as I know it should be that color and texture.
Nomad, I had to repaint it. I was very happy with the way it turned out, too. I used VHT from Eastwood. I put on three coats and let it sit out in the sun for an hour or so.
Quote:
Is the high tension coil (brown Bakelite) working? I tried to get one to work on my GS160. Now I've got four or five of those brown coils, a couple original and a couple reproduction, no luck. I finally gave up and put a Taiwan made coil on that is super reliable.
The coil is not original to the SS, but it is original. I got it in a box of misc parts with a VBB. I've had good luck with the original coils, but the reproduction ones have not lasted for me.

Wrinkle Paint.jpg

Member
Vespa 125 VMA, Vespa SS 180
Joined: 14 Feb 2018
Posts: 44
Location: Minneapolis, MN
Wed Jun 24, 2020 3:12 pm quote
It's been a while, the old piston had to be pressed out. I soaked it in a bucket of transmission fluid and acetone for over a month, but didn't help a bit. After pressing out the piston I had the cylinder re bored. I finally got the cylinder back. It needed the 2nd oversize. I've included some before and after photos. If I get some time next week I'll finish up the engine rebuild. And maybe get I'll it back on the road. Fingers crossed!

IMG_20200210_155615.jpg
Old piston after being pressed out.

IMG_20200210_155629.jpg
Cylinder before re bore.

IMG_20200617_175935 (002).jpg
After re bore.

Addicted
'64 Motovespa 150S (177) , '66 Allstate SF, '64 VBB
Joined: 27 Mar 2013
Posts: 620
Location: S.Salem, NY
Thu Jun 25, 2020 3:12 am quote
Where are the rings ?
Molto Verboso
Vespas 1964 GS160, 1965 SS180, 1977 V9A1T, 1983 PX150E
Joined: 16 Apr 2011
Posts: 1423
Location: Siam
Thu Jun 25, 2020 4:26 am quote
Moto64 wrote:
Where are the rings ?
Oh shit! I didn't even notice that until I read your post. Right, where's the groove at?
Member
Vespa 125 VMA, Vespa SS 180
Joined: 14 Feb 2018
Posts: 44
Location: Minneapolis, MN
Thu Jun 25, 2020 5:25 am quote
Quote:
Where are the rings ?
Here's a better shot of the old piston. The rings are fused together with the piston and/or smeared down the side.

IMG_20200625_081641.jpg
Old piston - rings.

Molto Verboso
Vespas 1964 GS160, 1965 SS180, 1977 V9A1T, 1983 PX150E
Joined: 16 Apr 2011
Posts: 1423
Location: Siam
Thu Jun 25, 2020 6:12 am quote
That's interesting.
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