Propshaft question

[texaxile]

Are (or rather, were) propshafts factory balanced ?

I have 2 props, both from identical cars, but the placing and positioning of the thin weights is different on each along the prop. Both are RWD Colts from the 80's, but I'm selling one for someone to use and wanted to make sure before it gets fitted.


TIA Pete.

[finlo]

The balancing of every one will be different just like your wheels.

[stevieturbo]

texaxile said:

Are (or rather, were) propshafts factory balanced ?

I have 2 props, both from identical cars, but the placing and positioning of the thin weights is different on each along the prop. Both are RWD Colts from the 80's, but I'm selling one for someone to use and wanted to make sure before it gets fitted.


TIA Pete.

propshafts will...should always be balanced as entire units, and they must retain the original alignment.

And of course, position and size of any weights will always vary.

[tapkaJohnD]

Don't know about yours, but the ones I do know of (Classic Triumphs) have four bolts to the flange each end. Each four are in two pairs so that the flanges can only be mated in two ways. This allows four ways the shaft can be fitted! and that can affect balance.

AA CC Perfect
AB CC Ok, bit vibration
AA CD Ok, bit vibration
AB CD OMG! This car will vibrate to pieces!

If yours has more bolts, then more possibilities, unless they are spaced to allow only one way at each end.
John

[Zener]

What Stevie and Finlo said above

[texaxile]

Thanks for the info guys.

The alignment of the prop is spot on, as it is still untouched, although it'll need a new donut sometime soon. One of the weights is also a bit loose, so I'll dab a tiny bit of weld on it. They're steel weights, not lead.