Steel center part of brake drum became loose
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Hooked
1974 200 Rally, 1970 180 Rally, 1980 P150X and P200E
Joined: 22 May 2017
Posts: 161
Location: George, South Africa
Mon Jun 03, 2019 8:18 am quote
On my Vespa, some play developed between the steel center part and the aluminum casing of the brake drum. The steel part can't be welded to the aluminum, and the internet does not give any advice either. Must I throw the brake drum away, or does anyone have some advice?
Addicted
GL, PK, PE200
Joined: 24 Apr 2012
Posts: 567
Location: Deep in the heart of Texas
Mon Jun 03, 2019 8:29 am quote
Pics?
Molto Verboso
1979 P150X, 1983 P200E, 1987 T5, 1996 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 1421
Location: Veria, Greece
Mon Jun 03, 2019 9:32 am quote
Scrap it. Is it original or aftermarket??
Hooked
1974 200 Rally, 1970 180 Rally, 1980 P150X and P200E
Joined: 22 May 2017
Posts: 161
Location: George, South Africa
Mon Jun 03, 2019 9:52 am quote
Original, but I think I will scrap it.
Veni, Vidi, Posti
a herd of easy shifty rats
Joined: 22 Nov 2010
Posts: 6771
Location: seattle/athens
Mon Jun 03, 2019 10:05 am quote
+1 or make an ashtray.
The way these are made is by the permanent mold process which Piaggio is an expert at. Iron or steel molds are filled with molten aluminum much like die casting except generally using gravity rather than pressure - it's usually cheaper on larger parts. The brake drum/hub has the steel brake part & splined hub inserted into the mold and the aluminum solidifies around it, contracting tightly. This is the same way your brake pins are held in your motor case.

Interesting though that it should separate, let's see pics. Any cracks?
Hooked
1974 200 Rally, 1970 180 Rally, 1980 P150X and P200E
Joined: 22 May 2017
Posts: 161
Location: George, South Africa
Tue Jun 04, 2019 8:46 am quote
No cracks, but you can see that someone tried to fix it before.

IMG_8676.jpg

IMG_8677.jpg

Enthusiast
Joined: 02 Feb 2019
Posts: 78

Tue Jun 04, 2019 12:05 pm quote
danie wrote:
No cracks, but you can see that someone tried to fix it before.
Jesus Christ, do you really want to risk your life with that? Just get on the interwebs and order a new one. How is this even up for discussion?

BTW I suggest not going the cheap route and re-using your cotter pin.
Veni, Vidi, Posti
a herd of easy shifty rats
Joined: 22 Nov 2010
Posts: 6771
Location: seattle/athens
Tue Jun 04, 2019 12:41 pm quote
Yowie! It appears to be genuine Piaggio. Which Vespa and what is its history? Depending on who did what, I'd give the whole bike a careful close up look over.
Molto Verboso
2005 PX150 In a Love-Hate Relationship with a 2-Stroke Vespa Since 2007
Joined: 01 Sep 2007
Posts: 1791

Tue Jun 04, 2019 5:20 pm quote
Looks like “bodgy” work to me.
Mon Jun 10, 2019 3:28 am
NotAutomatic has been ejected from this topic
Ossessionato
2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: 26 May 2013
Posts: 3755
Location: Millbin, Ostrayleea, mate
Mon Jun 10, 2019 4:06 am quote
PICS... so we can play at home...
I dunno what that wheel is, but dang dats bodgy!
Whats the overall drum look like (im not 100% sure what model its off)?
Whats the rest of the scoot look like?
I see your location, so that may explain the "repair", or not.
Enthusiast
1979 P200E
Joined: 01 Jan 2018
Posts: 83
Location: Houston
Mon Jun 10, 2019 7:04 am quote
That is terrifying to look at
Addicted
'64 Motovespa 150S (177) , '76 V90 ( 133)
Joined: 27 Mar 2013
Posts: 538
Location: S.Salem, NY
Mon Jun 10, 2019 8:35 am quote
The funny part is that it is even dimpled wrong.
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