S1 Rebuild(s)

[Dave Adams]

some pics of the rebuild process,

the top trailing arm bracket is broke......

the diff is sloping back a little (looking up) so that will need sorting.......

As you can see there isn't a lot of bracing in an S1 chassis, that will be sorted.

[Dave Adams]

Only going on what the staff at DVLA said.....Belgium was a cited example. As was Germany. ...despite brevity they want the same rules Europe wide.
One of the staff was adamant that it has been discussed at least amongst themselves that engine swaps from non standard should be more tightly regu lated. Whether it's government policy proposed or just canteen talk I don't know. They really didn't like the lax way it's all done right now.

[Brian (up north) Morris]

why does it matter if the diff is leaning back dave just curious ?

[Dave Adams]

I forget now.....i was looking into rear end geometry a lot back when i started the first rebuild.... i think from memory as the drive is taken up the diff naturally wants to lift at the nose so it will move further away from true....it needs to be slightly down i think.......one thing i do clearly remember is that prop shafts need to be slightly off from straight as it can cause them to wear quickly otherwise. 

[Brian (up north) Morris]

cheers :-)

[Dave Adams]

or that as the suspension moves up  it will increase the  angles on the rear flange in relation to the gear box tail shaft.......which cant be great for it.....

[Brian (up north) Morris]

ok no need to get complicated on me :-)))))))))))))))

[James Doulton]

As I understand it, if you have a UJ that connects two shafts that are at an angle to each other then when you turn the input smoothly, the output isn't smooth - it speeds up and slows down through the cycle. The amount of this variation depends on the angle between the two shafts. Therefore you want the axis of the diff input shaft to be parallel to the gearbox output shaft. This way the two UJ's are at the same angle (in opposite directions) then the diff input is exactly in sync with the gearbox output throughout the 360 degrees of rotation, even though the propshaft doesn't rotate exactly uniformly. The error is very small if the angles are small. See Wikipedia

If the two shafts are significantly angled then you need a constant velocity joint, not a universal joint.

If the system is completely in line then the X doesn't move with respect to the yokes and so the load is all taken by the same point in the bearing, which probably is what causes problems with that arrangement.

[Steve Kerswell]

11 degrees.

[Dave Adams]

Ere!......one of my recent posts seems to have err ...."dissapeared". .....someone spat their dummy out?

[Brian (up north) Morris]

witch one dave ??

[Dave Adams]

The Malaga eBay post.....

Been given an explanation already.

[Paul Sheridan]

As was I.