Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 998 / 996 / 916 / 748 > two rusty nuts

[TopiToo]

Hello.

The two nuts that hold on the heat shield will not move. Both are allen key heads which are now no more as they have be mashed.

Ok jokin apart due to the fact they are recessed I do not want to damage the heat shield how do I get then out.

see picture . .

regards

TopiToo

PS. not sure if this was a wise post

[Edited on 15-07-1968 by TopiToo]

[Mr_S]

Whip out the intermediate pipe, clamp the nut on the inside (molegrips??) Then drill the top off the nut like you would a pop rivet.

You should then be able to remove heatshield and pull the rest of the nut & bolt assembly out.

The drilling bit's probably going to be easier if you can get access to a bench drill, as everythings clamped in place then.

[TopiToo]

Hello

damm thought I could get away with taking them out in situ, was thinking of drilling/extractor screw, problem being have no control of the drill bit.

thanks Mr_S will have a go in the morn.

regards

TopiToo

[Mr_S]

Problem with drilling in situ is because the nut's not clamped it's likely that the bit will bite the head of the nut and just spin it instead.
Then all hell breaks loose as the drill spins off across the bodywork / casings etc

It's got to be worth the aggravation of dismantling just for the piece of mind.

I'd offer the use of my bench drill, but I'm miles away from you

[skidlids]

Steve I would try drilling right through the CENTRE first with about a 4mm drill, then use around a 6.4mm drill to take off the screw heads, then with the heat sheild removed spray on some plus gas or similar and let it soak for a while. Then try the easy outs, if they don't work drill out the hole which is hopefully central with a 5.1mm drill and dig out the screw threads from the captive nut threads with a scriber.

[antonye]

Hacksaw across the face to make a groove, then use an impact driver to get them off, or a screwdriver bit in a small socket set.

[TopiToo]

Hello

Thanks for the offer Mr_S I think its a safe bet to do any drilling away from the bike and as you said you have more control.


Hello Skidlids

This is my thinking but and in some respect its always easyer to drill in with a steady hand, as I dont have a bench drill, but what is my worry is damaging the female screw thread (sorry I don't know what its called) in some respect its not so much getting the nut out but what I have left to screw into if you get my point.

But thanks for the bit size I was looking at alot larger will be in the garage in the morn for another go.

Hello antonye

As you say "Hacksaw across the face to make a groove, then use an impact driver to get them off, or a screwdriver bit in a small socket set."

Thats what I thought I could do last winter now look at me, As I use the bike in the winter I am still amazed at how quick te metal parts furr up and start to rust.

I can not get a hacksaw onto the screw head as its resessed in to the heat sheild.

Thanks again.

regards

TopiToo

[geoff m]

Unless you drill it out slightly oversize then helicoil it ??

Geoff M

[Albie]

Have you tried a Dremmel and grinding bit or maybe from behind on nut???

[skidlids]

Steve the bits that the allen bolts screw into are a steel rivnut, I use alloy rivnuts for some of the bike mods I have done.
If you do end up destroying them all is not lost. I usually get spare ones from Trident supplies at Silverstone two doors away from Fonza Italia.

the tool I use is a Laser one, not that well suited to the steel Rivnuts

http://www.lasertools.co.uk/pages/tr...s.asp?type=Nut

http://www.lasertools.co.uk/home.htm

Or the cheap way

http://ourworld.compuserve.com/homep...ng_rivnuts.htm