Search found 198 matches

by Spanish Fly
Fri Oct 23, 2015 1:39 pm
Forum: Lambretta Tech
Topic: exotic cylinder conversion mystery ?
Replies: 47
Views: 19793

Re: exotic cylinder conversion mystery ?

AF Bultaco? :?:

SF

Perhaps not....tud spacing look similar but not the transfers. 3rd pic up from bottom.

http://www.lambrettaspares.com/info/mb- ... 1-+91.html
by Spanish Fly
Wed Oct 21, 2015 6:29 pm
Forum: Lambretta Tech
Topic: Thoughts on this Monza 225 seize
Replies: 15
Views: 4895

Re: Thoughts on this Monza 225 seize

Could that piston be dodgy? Machined incorrectly? i.e not as elliptical as it should be. Might be interesting to throw a micrometer across it. :ugeek:

SF
by Spanish Fly
Sun Oct 11, 2015 6:11 pm
Forum: Lambretta Tech
Topic: GT big block experiance : New GT crank info added
Replies: 516
Views: 189195

Re: GT big block experiance : New GT crank info added

What colour underpants were you wearing? :?: :oops: :lol:

SF
by Spanish Fly
Fri Oct 09, 2015 1:29 pm
Forum: Lambretta Tech
Topic: Using a leak down tester??
Replies: 22
Views: 7757

Re: Using a leak down tester??

A lad I know had a similar leak caused by a small crack in the casing allowing it to leak through the lower left hand side stud. He cured it by using studlock as you've suggested. I'm not sure how great a repair that is in the long term but It'd certainly get you going. :? Sounds likely in this sit...
by Spanish Fly
Thu Sep 24, 2015 5:29 pm
Forum: Vespa Tech
Topic: Vespa malossi holed piston
Replies: 12
Views: 4651

Re: Vespa malossi holed piston

Maybe the compression ratio is too high?
Do you know the combustion chamber volume?
Is it a genuine Malossi Head?

SF
by Spanish Fly
Wed Sep 16, 2015 6:29 pm
Forum: Vespa Tech
Topic: Harry Barlow Stage 4
Replies: 21
Views: 13405

Re: Harry Barlow Stage 4

johnny rotten wrote: The packer and recessed head are only for the standard 57mm stroke crank from what I was told by HB on the 60mm version he just modifies the head to accommodate the extra stroke length
Interesting. Ta.

SF
by Spanish Fly
Wed Sep 16, 2015 6:29 pm
Forum: Vespa Tech
Topic: Harry Barlow Stage 4
Replies: 21
Views: 13405

Re: Harry Barlow Stage 4

johnny rotten wrote: The packer and recessed head are only for the standard 57mm stroke crank from what I was told by HB on the 60mm version he just modifies the head to accommodate the extra stroke length
Interesting. Ta.

SF
by Spanish Fly
Tue Sep 15, 2015 5:45 pm
Forum: Vespa Tech
Topic: Harry Barlow Stage 4
Replies: 21
Views: 13405

Re: Harry Barlow Stage 4

wack 63 wrote:The packer is used with a standard stroke to raise the port timings
If I'm not mistaken he does a long stroke (60 mm) version as well.
Does anyone know what's involved there regarding packers or recessed heads etc.

SF
by Spanish Fly
Sun Aug 23, 2015 11:23 pm
Forum: Lambretta Tech
Topic: GT186 kit build is annoying me now
Replies: 18
Views: 5609

Re: GT186 kit build is annoying me now

Sometimes it's best not to over think these things.
Build it and run it.
Next course of action will depend if it will rattles or not.

It'll be reet! ;)

SF
by Spanish Fly
Mon May 04, 2015 7:30 am
Forum: Vespa Tech
Topic: Head not fitting
Replies: 9
Views: 2878

Re: Head not fitting

...barrel of laughs...... :oops:

SF