Cougar SV diff troubles!

[JohnM]

round ones

[Michiel H.]

Ceramic ones, trust aswell.

Stupid circlip tough, can't get mine right.

[simoncrabb]

Originally Posted by mikeyscott

Just wondering what diff balls come with the SV?

Err, from the manual:

Ceramic Nitride Diff Balls 2.5mm (pk12) U3019

[Albertini]

Originally Posted by Michiel H.

Stupid circlip tough, can't get mine right.

Having trouble here too, a bit too fiddly. Got it in and it dosen't rotate or move easily but it did a little when I applied a little pressure with a small screw driver.
Only got one clip so its going in. Not a great bit of design this bit otherwise all good.

[bigred5765]

its not a worry and is exactly the same as the cat sx, as long as you build it right it give many hours of trouble free racing, and is a simple neat idea that works just fine,

[fastinfastout]

Originally Posted by simoncrabb

Err, from the manual:

Ceramic Nitride Diff Balls 2.5mm (pk12) U3019

can you use 3/32 (2.38mm) diff balls?

2.5mm is an odd diff ball size

[MattW]

I very much doubt you can use 3/32. I have checked in this diff, but did once look into it for the touring car diffs and it wasn't possible then - and there doesn't feel like there is enough side movement to allow for a smaller ball.

2.5mm isn't hugely odd - and it's a Schumacher part. As well as some other aftermarket diff ball sellers that i've seen.

[j0pp3]

I found a very cheep circlip plier (approx $3) and opened it up slowly so that the space was 4.5mm as stated in the attached paper.

Then carefully fitted it in one side at a time. The hardest part was in the beginning and the clip flew away a few times Then I took a transparent plastic bag and wrapped it over the diff and my hand so it couldn't go very far

Take your time. This is an important step while building.

Happy racing!

/j0pp3 (RC-newbie)

[racingdwarf]

well just reading this thred, as I am rebuilding a club members sv diff as it is driving him mad, the circlip was loose.tried stretching, but still loose, will order another.

I have to say altho some may think this is a great design, im not sure myself, To me good design is simple and effective,and easy for people of all abilitys to build...At the min my B4 is safe

[ant west 71]

no problems here either, as ive not got the pliers for these, so i started the one end of the clip and just rotated it around working it down into the groove with a strong needle in the leading hole. never had a problem yet and that is after 4 meetings.