altering stroke on a crank
hi all,anyone altered the stroke on a crank by filling the existing pin holes,with either a 22mm plug and welding it in,or filling the holes with mig weld and re drilling and reaming out to suit the 22mm crank pin,which i would tig weld in,cheers all.
-
gaz_powell
- registered user
- Posts: 1208
- Joined: Sat Mar 28, 2009 1:10 pm
- Location: hartlepool
- Contact:
be easier to by an eccentric crank pin
yeah i think readspeed do 62mm for about £80 quid,i could do this at work,probaly get one out to 64mm,but then you have issues with the conrod catching the casing,anyone got any knackered indian gp cranks to have a go on,cheers.
thats good to know ...im assuming that price is to rebuild /convert ......ill have a peek :bouncyeng:tavspeed wrote:yeah i think readspeed do 62mm for about £80 quid,i could do this at work,probaly get one out to 64mm,but then you have issues with the conrod catching the casing,anyone got any knackered indian gp cranks to have a go on,cheers.
Its in bits scooter club: www.facebook.com/groups/132415046859320
-
carlos fandango
- registered user
- Posts: 792
- Joined: Wed Jan 07, 2009 12:51 am
- Location: Stourbridge
- Contact:
I think thats just to buy the pinRICSPEED wrote:thats good to know ...im assuming that price is to rebuild /convert ......ill have a peek :bouncyeng:tavspeed wrote:yeah i think readspeed do 62mm for about £80 quid,i could do this at work,probaly get one out to 64mm,but then you have issues with the conrod catching the casing,anyone got any knackered indian gp cranks to have a go on,cheers.
When i was young my Mom said "if you haven't got anything nice to say, say nothing at all " ..................... and people wonder why I'm quiet around them !
yeah probbablycarlos fandango wrote:I think thats just to buy the pinRICSPEED wrote:thats good to know ...im assuming that price is to rebuild /convert ......ill have a peek :bouncyeng:tavspeed wrote:yeah i think readspeed do 62mm for about £80 quid,i could do this at work,probaly get one out to 64mm,but then you have issues with the conrod catching the casing,anyone got any knackered indian gp cranks to have a go on,cheers.
Its in bits scooter club: www.facebook.com/groups/132415046859320
yep,thats just for the pin,this is going to be a credit crunch engine,the budget is so tight it squeaks :biggrin:
I seem to remember Taffspeed altering the stroke on Lambretta cranks back in the 80's. They re-drilled new holes 180' to the old crank pin holes then plugged the old holes. Just a thought.