Nuts!!

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jb666
Posts: 182
Joined: 02 Nov 2006 22:20
Location: Ashford, Kent

Nuts!!

Post by jb666 »

Anyone have a die nut to run down the exhaust nuts on a 3 1/2? I checked back through the forums and a couple of people tried this and wondered how they got on.

John.
julianharty
Posts: 478
Joined: 15 May 2016 16:34
Location: High Wycombe
Location: High Wycombe Area (Bucks)

Re: Nuts!!

Post by julianharty »

I have both a tap and a die and use them as and when I've scruffy exhaust nuts or exhaust ports. I've several 350 bikes and several 501 bikes (which use a larger thread). I believe using the tap/die does help improve the ease of the nut fitting into the head.

I bought the tap and die on eBay, there are some that are tolerable prices and others that I can't justify paying even though they may be better quality tools. I seem to remember my tap was relatively inexpensive. There are occasionally sellers who have a used item or a one-off they sell cheap.

To provide context, I buy tools whenever I have a reason to do so. Your needs and habits may vary.
norbert
Posts: 750
Joined: 15 May 2007 15:15
Location: Lübeck/Germany

Re: Nuts!!

Post by norbert »

Could you kindly post a picture? I don´t have any idea of what or how is a die or tap :oops: :roll:
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Ming
Posts: 798
Joined: 01 Aug 2014 16:32
Location: France
Location: Central France

Re: Nuts!!

Post by Ming »

Norbert, tools for cutting threads. Tap for an inside thread (nut), die for an outside thread (Bolt or screw).
morini_tom
Posts: 920
Joined: 05 May 2006 13:47
Location: Northampton

Re: Nuts!!

Post by morini_tom »

In the first instance, save yourself some money by modifying an old exhaust nut to do the job.

Photos of mine attached- cut into the thread at 90 degrees in 3 places around the nut and then file a lead in to the new edge.

Will do a pretty good job of cleaning up head threads and significantly reduces the risk of cutting a cross thread which you might do with a tap.

Obviously if the head is really mullered this won’t help much but then a tap probably wouldn’t either, unless you’ve had a insert welded into the head and need a completely new thread (at which point you may as well use an expert like Paul Compton to to do the job for you)
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morini_tom
Posts: 920
Joined: 05 May 2006 13:47
Location: Northampton

Re: Nuts!!

Post by morini_tom »

Of course I’ve just re-read your post and realised it’s the nut you want cleaning up not the head… but the above info may still be of use to others
norbert
Posts: 750
Joined: 15 May 2007 15:15
Location: Lübeck/Germany

Re: Nuts!!

Post by norbert »

Thanks for the aclaracion!

The easiest way trying to save a nut would be a thread file, a very useful tool anyway
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