In this video I show the lightening of a 1931 Ford Model A flywheel. The owner wanted approx. 12-14 pounds removed and I ended up removing 13.8 pounds.
Another great video. I learned a lot of lathe techniques that will be helpful in the future. My friend and I began learning mechanics on a model A. Thanks for posting.
I did a rough balance using a motorcycle crankshaft jig but I was told by the owner it was not a critical balance. I was just hired to remove metal and lighten but went a step further to get the balance pastor class pastor possible. It's been running good for several years now so must have worked. 😜
Lightening the flywheel allows the engine to rev a little quicker. It's a fine balance though because taking too much off the flywheel will allow the engine to rev very quickly but there will be less mass to keep the vehicle moving without having to keep down shifting. How that's helpful. Thanks for taking the time you watch. Mike
I'm sorry, I couldn't tell you what the magic number is as those old flatheads are not my specialty. I was just hired to remove a specific amount by a local car builder. I've done about three of them for this gentleman now but all have just been brought into my shop with the request to remove a certain amount.
Another great video. I learned a lot of lathe techniques that will be helpful in the future. My friend and I began learning mechanics on a model A. Thanks for posting.
Thanks for the comments. I’m happy you found it informative.
Mike
Great work! Always enjoy your lathe work!
Thank you and thanks for taking the time to watch.
Mike
How come you didn't reface the clutch and pressure plate mounting surfaces
The clutch mounting surface was still in good condition, flat and true, and the owner didn't want me to.
What about balance?
I did a rough balance using a motorcycle crankshaft jig but I was told by the owner it was not a critical balance.
I was just hired to remove metal and lighten but went a step further to get the balance pastor class pastor possible. It's been running good for several years now so must have worked. 😜
Tell me what the crankshaft has to with the lightening of the flywheel. Sorry a lot of this is new to me.
Lightening the flywheel allows the engine to rev a little quicker. It's a fine balance though because taking too much off the flywheel will allow the engine to rev very quickly but there will be less mass to keep the vehicle moving without having to keep down shifting.
How that's helpful. Thanks for taking the time you watch.
Mike
@@zmotorsports62 Mike, what is the optimum flywheel weight for a hot banger. Compression, some different cam grind, 1 or 2 carbs, you have seen them.
I'm sorry, I couldn't tell you what the magic number is as those old flatheads are not my specialty. I was just hired to remove a specific amount by a local car builder. I've done about three of them for this gentleman now but all have just been brought into my shop with the request to remove a certain amount.
Looks great! Cast iron is a nasty material to machine.
Thank you. Yeah cast iron isn’t my favorite material to machine.
Thanks for watching.
Mike
Trust the original design! That flywheel weighed 60 pounds for a good reason !!
But not what the customer wanted from his engine. Runs so much better now.
@@zmotorsports62 I guess you are right.