Search found 473 matches

by mickdale
Sat Oct 05, 2013 9:13 am
Forum: Lambretta Tech
Topic: piston bdc and exhaust port
Replies: 11
Views: 4494

Re: piston bdc and exhaust port

Yes, as well as suggesting your other port timings may be way out it also means that part of the piston may get really hot. hello ian if my barrel has 2mm piston exposed out the top of the barrel and 2mm showing in the exhaust port: 191 deg exhaust, 127/125.5 transfers (transfers not the same) if m...
by mickdale
Sat Oct 05, 2013 9:05 am
Forum: Lambretta Tech
Topic: piston bdc and exhaust port
Replies: 11
Views: 4494

Re: piston bdc and exhaust port

rosscla wrote:You using a 60mm crank?
unfortunately yes - didn't realize it raised the transfers and ts1 transfers are already large when I bought it.....
by mickdale
Fri Oct 04, 2013 4:45 pm
Forum: Lambretta Tech
Topic: piston bdc and exhaust port
Replies: 11
Views: 4494

piston bdc and exhaust port

does it matter if there is 2mm of piston skirt still in the exhaust port at bottom dead centre on a ts1?

cheers
mick
by mickdale
Sat Sep 21, 2013 10:36 am
Forum: Lambretta Tech
Topic: Flywheel machining
Replies: 22
Views: 6856

Re: Flywheel machining

hello camel - just get hold of a knackered gp crank with decent flywheel side.
use a very thin disk cutter to cut through crank next to the web and you've got a flywheel holding tool for the lathe.
check run out on lathe as some 3 jaws aren't very good

hope this helps
by mickdale
Sat Sep 21, 2013 9:24 am
Forum: Lambretta Tech
Topic: new crank
Replies: 8
Views: 2576

Re: new crank

talk to mark, + he will want to know what stroke you will use when porting the cylinder
by mickdale
Sat Sep 21, 2013 9:18 am
Forum: Lambretta Tech
Topic: Flywheel machining
Replies: 22
Views: 6856

Re: Flywheel machining

highly illogical captain .. ! quite true.... ok...nobody has actually answered the guys initial question... this is my take on it... No it does not need to be balanced... in an ideal world with the right equipment/know how/time/cash..yes it would be a bonus to balance a flywheel.. but in the real w...
by mickdale
Sat Sep 21, 2013 9:07 am
Forum: Lambretta Tech
Topic: Flywheel machining
Replies: 22
Views: 6856

Re: Flywheel machining

hands up who runs a balanced flywheel? yes m8 - balanced in a cnc balance machine on a mandrel, took the technician ages to balance a SIL flywheel that had had the "holes drilled" http://i178.photobucket.com/albums/w259/mickdale/DSC00006.jpg http://i178.photobucket.com/albums/w259/mickdal...
by mickdale
Sat Sep 14, 2013 7:06 pm
Forum: Lambretta Tech
Topic: crankcase volume
Replies: 5
Views: 1651

Re: crankcase volume

wow - i didnt think there would be a difference in fuel consumtion (thank god for diablo tanks)

darrell - pm sent
by mickdale
Sat Sep 14, 2013 5:03 pm
Forum: Lambretta Tech
Topic: crankcase volume
Replies: 5
Views: 1651

Re: crankcase volume

thanks rosscla
60mm crank

will try and find the thread