Modeller's torque wrench set

[Adrian Smith 1]

I notice in the latest BMFA mag the reference to use of a torque wrench set for tightening the prop bolts on a petrol engine aircraft. Now that sounds like a good idea. Any ideas where I can get one from. Thanks.

[Don Fry]

When I was shooting seriously I used Anschutz rifles. The barrel is torqued onto the stock, and indeed the group can be changed by varying the torque setting. They sell a small torque wrench. Will cost you though.

[Gary Manuel]

Bike shops such as Tredz and Evans sell a good range of mini torque wrenches.

[Adrian Smith 1]

Thanks guys. I will see what I can find and report back.

[Bob Cotsford]

I'd have thought any 1/4" drive torque wrench would do the trick

[Geoff S]

When I was doing a lot of messing around with motor cycle engines I used a spring balance hooked onto either a ring spanner or a hole drilled into the ratchet of my Britool socket set and worked out the torque from the length of the spanner.

I've built loads of pedal cycles from single bikes to tandems and trikes and I've never used a torque spanner. All I use is feel and I've never had a problem with anything failing or coming loose over many 1000s of miles that could be attributed to an incorrect torque application.

Geoff

[Adrian Smith 1]

I found what I wanted on Amazon from a bicycle store made by M-Part which has all the heads I require and tightens to a limit of 15 Nm which is enough for me. Not too bad at £35 I guess.

[..]

Surely only any good if the manufacturer gives a figure to tighten to? I can't recall seeing thus info?

[ben goodfellow 1]

Proxxon do them . I have a 1/4 drive one that I use for my petrol engines . Works well

[Adrian Smith 1]

Quite right Justin. That said the BMFA article states for DA 200 with M5 55mm bolts a torque of 10.2 Nm or 90in.lb is required according to DA. I have e-mailed OS to see what they say about the OS GT 60 so I will see what they say. I can't imagine it will need more than 10.2Nm, but will see on that.

[Simon Ward 2]

Hi Adrian, here's a link to a LifeLine Torque wrench set which I use for the push bike:

http://www.wiggle.co.uk/lifeline-essential-torque-wrench-set/

£27.50 from Wiggle and an excellent bit of kit.

Regards,

Simon.

[Bob Cotsford]

Standard torque figures

[Adrian Smith 1]

Thanks Simon, that looks good quality to me.

Thank you Bob that is a very interesting table, a great thing to have hand. Brilliant! Heard nothing from OS yet. I suspect they don't know.