Non destructive testing and engine part measuring

[arwtee]

I just bought a cheap engine with a stuffed top end from a broken valve. I want to get the crank, conrods and case tested for cracks and distortion before going to the expense of a rebuild. Anyone know where I can get this done in the Sydney region?

[Momus]

At home is as good a place as any?

Do a visual for cracks. Use a bar that fits in the small end bore and a square to check the truth of the rod.

Measure your crank runout is inside the manufacturers limits with a dial guage with the crank in the cases.

Aviation standard non destructive testing is very pricey relative to the value of old motorbike bits.

[XRH348]

There should be a General Aviation supply store at the Sydney Airport.
Check with them for a "Dye Penetrant" crack detecting kit. it should be relatively inexpensive, and You tube should be able to show you how to use it.
its a three part system.
you spray the dye on, clean off the excess, then apply a spray on powder ( like talcum powder).
if there is a crack , the dye will have been absorbed into the crack, and then a thin line will show on the powder.

[arwtee]

Thanks, Yes, It is a bit of an overkill sending stuff away so I have explored the "at home" suggestion and it looks like the go.
The penetrant die kit isn't expensive and a great thing to have in the workshop to check for cracking that you can't see.
Dial guage and mount not expensive either.

[arwtee]

A forum member sent me an email recommended MT&C engineers in Silverdale, Sydney for crack testing. I checked and they are very reasonably priced so I might get them to magnaflux the crankshaft and rods and I will do the rest at home.

[skypig]

Would “magnaflux” testing be an appropriate test for 30yo road wheels (“Mags”)
Do they need to be paint stripped?
Approx cost?

Thanks in advance for any info.