Size of cylinder head nuts please

[Red-leader]

What size spanner for cylinder head nuts on a 900ss 91 please. Going to try and get rid of the oil leak this weekend.
Anyone have the Ducati special tool to borrow ?
Have a top man helping so not all bad.
Thanks Kev

[nelly]

15mm. Can't help with the tool i'm afraid, but if you weld a socket mid way down a 15mm ring spanner, you can calculate the torque required at the torque wrench.

[Red-leader]

Thankyou Mr Nelly
Its obviously not true what Dibble says about you :o
Please bear that in mind when you calculate his invoice.
Cheers Kev

[monstermob 998]

15mm ring spanner will do the job-- but you may have to grind the ring a tad thinner to get onto the nut--i used an old spanner and welded an old socket with half inch drive to take the torque wrench along the spanner shaft to make the special tool

[monstermob 998]

must learn to type faster- bit like my riding really:lol:

[Fiver]

haha i just discovered the need for said tool this weekend.

Its surprising how much you have to grind the spanner down to get it to fit.

The need to buy myself a welder seems to grows with each bike i own...

[Red-leader]

Think its a trip down the car shop for a cheap Draper ring spanner to grind down rather than the Snap On :eureka:

Thanks for your help
Kev

Got to drop the engine out first though, oh what joy !

[Iconic944ss]

I think I used a combination ring / open ended spanner and just happened to have a piece of box section the right size for the ring-end and getting my torque wrench on as well.

F

[Fiver]

Do you think any of you could post a picture up of the spanner?
I'm gonna have a bash at making one up.

Thanks in advance

Cy

[Iconic944ss]

The spanner is shown in the Haynes manual - its like a big 'C' shape.

Just had a look at the www.duc.nu site and the workshop manual on there - and the special tool is simply shown as a double ended ring spanner with a square hole tube built into the middle to allow a torque wrench to be fitted straight in.

F