Spanner Wrench From A Wrench

Flute Maker · Aug 18, 2021

I need a spanner wrench for 2 cycle engine manifold pipe. Has anyone made one from a box or open end wrench? This is for a vintage NSU Quickly moped.

Thanks,

Payson.

FredC · Aug 18, 2021

No idea what you need, but wrenches can be modified. The material is usually hard and tough, but the open end can be made larger or thinned down to get in narrow spots.

no704 · Aug 18, 2021

iv'e seen them made from crescent wrenches

Scottl · Aug 18, 2021

Not sure what size and shape your spanner needs to be but if you start with a good quality wrench and it has enough "meat" so the finished spanner won't bend it certainly can be done.

major thing to avoid is very sharp internal corners because they are starting points for cracks.

Mark Rand · Aug 18, 2021

I though the NSU Quickly needed a hook spanner for the exhaust pipe nut?

Flute Maker · Aug 18, 2021

Yes Mark. A hook spanner it is. I thought all spanner wrenchs were hooked.
Here's a picture. Diameter is 1-9/64". The slots are about .160" deep and .196" wide. Blank area is about .190" wide.

Mark, do you have experience with NSU?

Bill D · Aug 18, 2021

1+9/64 I read as about 29mm. Buy a 28-30mm hook spanner and grind thinner as needed.
Bill D

boslab · Aug 18, 2021

I have a face pin spanner (wrench) made by drilling a couple of holes in a bahco adjustable spanner, tight fit for 2 dowels, works but I went up market a bought a face pin wrench set, looks like a dividers with prongs, worth having, along with some round and square hook spanner’s been very useful
Mark

L Vanice · Aug 18, 2021

I have modified old wrenches and sockets by milling with carbide end mills. Here are some pictures.

Spanner is a UK English word that seems to mean any sort of wrench. In the USA, it is more usually applied to special types of wrenches that can have rectangular or cylindrical pins to engage slots or holes on the face or periphery of a nut or similar part that needs to be turned.

Larry

Flute Maker · Aug 18, 2021

Bill D said:
1+9/64 I read as about 29mm. Buy a 28-30mm hook spanner and grind thinner as needed.
Bill D

Oops. 1.337” about 34mm.

JohnEvans · Aug 18, 2021

Torch one out from a piece of 1/4-3/8 strap ,a bit of finish work with a 4-1/2 grinder and Bob's your uncle !!

Flute Maker · Aug 18, 2021

boslab said:
I have a face pin spanner (wrench) made by drilling a couple of holes in a bahco adjustable spanner, tight fit for 2 dowels, works but I went up market a bought a face pin wrench set, looks like a dividers with prongs, worth having, along with some round and square hook spanner’s been very useful
Mark

I think i have one at work. Thanks Mark. That comes from another direction.

Mark Rand · Aug 19, 2021

Flute Maker said:
Mark, do you have experience with NSU?

A friend had one in 1973. I still had a pushbike.

For Larry:- A spanner was the tool used to span the lock of a wheellock!

fciron · Aug 20, 2021

I usually just cut them out of 1/4" flat bar. It doesn't have to stand up to daily use. How many times are you going to mess with the exhaust on an NSU Quickly?

Of course I have lots of steel bar around. I suppose if you have lots of wrenches around that works too.

Flute Maker · Dec 4, 2021

Larry. Sorry for the late reply. These are all great ideas. Especially the open end wrench, ground back. Perfect for the surface grinder. My first attempt with an adjustable wrench was barely adequate. There’s a great used tool store near me in Waltham. Plenty of wrenches there. Thanks.
Payson.

L Vanice · Dec 4, 2021

Flute Maker said:
Larry. Sorry for the late reply. These are all great ideas. Especially the open end wrench, ground back. Perfect for the surface grinder. My first attempt with an adjustable wrench was barely adequate. There’s a great used tool store near me in Waltham. Plenty of wrenches there. Thanks.
Payson.

All those stock open end wrenches and sockets were modified with carbide end mills, not my surface grinder. Some outside profiling was done with the 1 x 42 belt sander.

Larry

Flute Maker · Dec 4, 2021

Did the wrench lay flat on the mill bed, or up on blocks with clamps?

Payson

L Vanice · Dec 4, 2021

Flute Maker said:
Did the wrench lay flat on the mill bed, or up on blocks with clamps?

Payson

I did those up to 40 years ago, so I cannot recall all the details. Different shapes need different holding methods. As much as possible, I hold work in the 5" Kurt vise with step jaws. I generally use copper sheet in the vise jaws when clamping as-forged or curved surfaces.

An easy way to get small pieces of copper sheet is to buy copper water pipe, cut off a piece, slit it down one side, flatten it and anneal with a torch or on a stove. If you don't want a 10 foot length of pipe, just buy a solder-type copper coupling.

Larry

macchi7 · Dec 4, 2021

I'm sure I tightened my Quickly exhaust nut up with a standard C spanner, which fitted the slots without modification.
If you need spares for the bike, there is a very good specialist based in Germany who ships world wide.

Piek · Dec 5, 2021

Here you go:
Hakenschlussel Auspuff NSU Quickly

Spanner Wrench From A Wrench

Cast Iron

Diamond

Aluminum

Diamond

Diamond

Cast Iron

Diamond

Titanium

Diamond

Cast Iron

Titanium

Cast Iron

Diamond

Stainless

Cast Iron

Diamond

Cast Iron

Diamond

Aluminum

Cast Iron

Similar threads