Search found 225 matches

by Davidsquaredson
Wed Jan 01, 2020 3:49 am
Forum: Lambretta Tech
Topic: Clark’s of Nechells lambretta cables?
Replies: 3
Views: 2397

Re: Clark’s of Nechells lambretta cables?

Internet is a wonderful thing. 1965. May have been with the scoot since new (my tv)

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by Davidsquaredson
Tue Dec 31, 2019 8:20 pm
Forum: Lambretta Tech
Topic: Clark’s of Nechells lambretta cables?
Replies: 3
Views: 2397

Clark’s of Nechells lambretta cables?

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S.J. Clark cables of St.Clements Rd, Birmingham 7.

Any idea how old? Came in a box of parts along with a scooter. It’s a front brake cable for a TV Mk.1




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by Davidsquaredson
Sun Dec 29, 2019 8:38 pm
Forum: Lambretta Tech
Topic: ? About wrist pin shims vs wider small end bearing
Replies: 2
Views: 1536

Re: ? About wrist pin shims vs wider small end bearing

Hi, I’ve got a new MEC 175 crank. The big end does not look shimmed. There is too large a gap between the small end bearing and the sides of the piston. I don’t have shims on hand but I do have a wider small end bearing. Assuming it’s within tolerance of the sides of the piston, is that sufficient?...
by Davidsquaredson
Sun Dec 29, 2019 6:13 pm
Forum: Lambretta Tech
Topic: ? About wrist pin shims vs wider small end bearing
Replies: 2
Views: 1536

? About wrist pin shims vs wider small end bearing

Hi, I’ve got a new MEC 175 crank. The big end does not look shimmed. There is too large a gap between the small end bearing and the sides of the piston. I don’t have shims on hand but I do have a wider small end bearing. Assuming it’s within tolerance of the sides of the piston, is that sufficient? ...
by Davidsquaredson
Sat Dec 28, 2019 7:51 pm
Forum: Vespa Tech
Topic: POLINI 210 ALLOY
Replies: 17
Views: 11147

Re: POLINI 210 ALLOY

After much frigging around this is what I settled on: 132 main. 160be3. 62-160 pilot.

That’s with a new 210 ALU barrel and head. Bgm Si26 carb. Drilled air filter. Sip road 2 exhaust. Case is not matched to barrel.

And I love this kit.


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by Davidsquaredson
Tue Dec 24, 2019 2:25 pm
Forum: Lambretta Tech
Topic: Impurities or alloys that complicate case or headset welding?
Replies: 5
Views: 2333

Re: Impurities or alloys that complicate case or headset welding?

All i can say is that Shaun burns welded loads of lambretta alloy for me: headsets, cases, horncasts, gear change etc. And it was spot on. Unfortunately, I have no idea what technique(s) he used, but all I'm saying is that a competent chap with the right gear can do it, and it was cheap too. The he...
by Davidsquaredson
Mon Dec 23, 2019 1:41 pm
Forum: Lambretta Tech
Topic: Impurities or alloys that complicate case or headset welding?
Replies: 5
Views: 2333

Re: Impurities or alloys that complicate case or headset welding?

Welding die cast alloys in general is a dirty and messy job. I found a very light pass, perhaps skipping - after a good grind - then keep all the garbage away repeating light pass and grinding back until the amount of porosity is acceptable. This takes time which usually is not worth the cost if re...
by Davidsquaredson
Sun Dec 22, 2019 8:19 pm
Forum: Lambretta Tech
Topic: Impurities or alloys that complicate case or headset welding?
Replies: 5
Views: 2333

Impurities or alloys that complicate case or headset welding?

Doing a resto. Case stud needs to be refilled and tapped. Then headset bottom needs welding. My welder asked about magnesium or impurities in the cast.

Thx
David


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by Davidsquaredson
Sat Dec 14, 2019 10:29 pm
Forum: Lambretta Tech
Topic: Which way towards exhaust on this piston?
Replies: 2
Views: 2015

Which way towards exhaust on this piston?

It’s a Borgo piston from my s3tv175. I wrongly assumed the crown had an arrow. Can you tell from the skirt which is the exhaust side?

Thx


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by Davidsquaredson
Fri Nov 29, 2019 4:08 am
Forum: Lambretta Tech
Topic: Borgo Asso piston? On an original tv175
Replies: 2
Views: 1900

Borgo Asso piston? On an original tv175

Hey, say hello to my 5,000 original mile s3tv175. The piston says Borgo on the top and asso inside. I’ve heard of asso, a search on Borgo says it’s what original Ducati used. Anyone? And when I opened the side case it looks like I’m the first one in. *squeel* https://uploads.tapatalk-cdn.com/2019112...