Hi Grasshopper, Seriously, I wonder if Loctite has the shear strength to hold a crankshaft like yours? Maybe you need yo estimate the maximum pressure divide by the area of piston, then apply that as a torque at the radius of the Big-end and compare that torque as a shear force on the loctite... I.E. at the radius of the main journal. Consider the area of loctite in shear = the torsion as a shear force divided by the area of the loctite in shear.

In reality, you may only have half the strength the Loctite Laboratory tells you, and may have underestimated the pressure peak of the gas on the piston. I.E. Boiler + superheat pressure of a steam engine, more than 10 times compression (theoretical) if an ICE.

IF you are not happy crunching the numbers, send me the bore stroke, main journal diameter, etc. and I'll work it out for you. I have "fresh batteries in my old slide rule"... Well in at least 1 of my 3 or 4. (A couple inherited from Grandfather and Father, both a bit more worn than my 55 year old plastic one - none good enough for my local museum! - Still in use!).

Noticed a museum activity on their website "practise your handwriting in the school" as "something to discover". - I feel a "Grump" coming on!!

Beamish is a world famous open air museum, telling the story of life in North East England during the 1820s, 1900s, 1940s and 1950s.

www.beamish.org.uk

I notice that 2 of the LCD numbers on my Sharp EL500R calculator have lost "pixels", and it is making it harder to recognise a 5 or 6 on 1 character, or 5,8,9 on another. - Need a new calculator! - Suggestions?

Regards,

K2