Im about to spin the flywheel in our lathe to take some meat of it..
Has anyone out there got some drawings, specs etc to where abouts this should be done........
Once its fitted in the chuck I dont want to remove it to keep it balanced and the idea of weighing the swarf to know how much if taken off is not welcome....
It weighs 16.5 pounds now and want to take it down to about 12 pounds...
Im only getting this info from a few books etc so let me know if Im doing the wrong thing...
Thanks in advance
Hamish
Thinker ·
i dont know where the material needs to come off but it is going to be round or flat so balance should not be a problem just make sure it is running true before starting and check it is running true before you finish it.
you can calculate the weight removed by volume of material removed.
i have the formula some where i am 99% sure that for steel it is volume of steel in millimeters multiplied by 0.0000068 will give you it weight in kg.
if you need it i can pull out all the formulas you need to calc the volume and weight.
mczaf666 ·
Thanks for the info Thinker.
I can check this formula here.
Thanks again
Hamish
Joel ·
what spec engine is this going on?
your gonna need a torquey engine unless you like driving a truck when it comes to hills
also the lighter you go the faster the car will slow down when u get off the noise pedal
my old 1835 had a 12lb'er and getting off the gas in it was like hitting the brakes
oh yeah most of mine was machined off the ring gear area
dangerous ·
I always take the material from the outer perimeter near the ring gear.
I very rarely remove anything from the back,
except perhaps a very light skim (.005"?) to make things smooth and true.
I generally turn the outside diameter of the shoulder
to within 3mm of the clearnce holes on the back where the clutch bolts are,
and then a series of chamfers between 30, 45 and 60 degrees.
The material that the original steel flyheels are made from is very tough,
so use slow spindle rpms or else you will burn up the tip tools.