900 Showa forks [Archive] - Ducati Sporting Club UK

boski69

25-Apr-2006, 21:51

Just rebuilt the ss after a shunt last year. One seal was leaking so stripped em down and re fit seals. re filled with fork oil from Hein Gerick. I dont know if this was a mistake cause I know it says in the manual to use Showa fork oil. The front end bounces around so much that I have had to back off the preload and damping to minimum just to stay on the thing. HELP!!! Is the oil type really that critical??
Brian.

25-Apr-2006, 22:24

depends on the quantity (measure the height of the oil) and the weight of the oil (usually 7.5 for road ducati's so I am told by AK)

Iconic944ss

26-Apr-2006, 00:25

Best write up on Showa rebuild I've seen yet:

http://www.motoreva.com/showa/showa.html

He recommends 300cc of 5W oil.

Frank

boski69

27-Apr-2006, 18:29

Thanx for the replies. As I put 440cc in each leg I think I will drain them down to 300 and see how it goes.
Cheers Brian.

Derek

28-Apr-2006, 09:34

Originally posted by boski69
Thanx for the replies. As I put 440cc in each leg I think I will drain them down to 300 and see how it goes.
Cheers Brian.

Ignore the quantity, the important thing is the oil level - it should be 108mm from the top of the fork with spring and spacer out. A 5wt oil is best.

boski69

29-Apr-2006, 15:31

Thanks Derek, I'm beginning to understand how these things work.
Cheers, Brian.