I'm about to replace an old MFI CVH with a Zetec, and want to measure the weight change. Is there a cheap attachment for my engine winch - the sort of scale that people use to measure fish, but that'll go up to 200kgs?

The other thing I thought was that if I know the spring rates on the car, then I should be able to figure it out based on the ride height difference...

Gary

No good if you've started already but otherwise could you run the car onto a weighbridge before and after?

I use a cheap set of bathroom scales that goes upto 150kg. About 4 quid from Argos. That's for weighing the engine only without the gearbox.

You could try making up a simple lever with the engine hanging on one side and a known weight (eg you) hanging on the other side of the pivot - The weight should be easy to calculate

a newton balance would be about the easiest way to do it and it could really really accurate if you're careful

120kg bathroom scales £3.29 from argos - amazing! I think I'll get two and then it should be easier to balance the whole engine/gearbox assembly.

Cheers

Gary

I was thinking about building something like this
[img]/upload/ruggless - small.jpg[/img]

There is also another model by the same manufacturer here

I found these in Carroll Smith's Engineer to Win. Looks simple enough to build out Locost scraps, and should weigh an engine as easily as a corner of a car.

[Edited on 2006-1-22 by jolson]

Bum... can't get the image to include in the post. Look in my photo archive under Ruggless - small, and Ruggless - zoomed.

[Edited on 2006-1-22 by jolson]

Hah! Got it!

[Edited on 2006-1-22 by jolson]

Bum... no I don't.. where'd it go? it was there a minute ago.

[Edited on 2006-1-22 by jolson]

i know that those cheap scales are notoriously innacurate when you get up to the 120Kg range, just my 2p worth

set of bathroom scales under each wheel....

Something like this must be easy to knock up.
You can calculate the engine weight using the reference weight and the lengths 1 and 2.
You can either alter the reference weight or move the pivot until balance is required
Rescued attachment balance.gif

Fill a bath with water. Float the engine and box in the bath (on some sort of raft) and measure the quantity of water it displaces over the side onto the bathroom floor. Each litre equals one kg IIRC.







I'll get me coat.................