Well if you want a 1098 one they are rare in UK and NLA new. Unlike 1275 or 998 ones.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

the two I have are from 1098 motors, will have the first one out tomorrow so will see what it looks like. Will def get it crack tested, I gather I am looking for smooth surfaces where the bearings go, no gouges ect?
thanks,
Steve

1098 cranks crack in the corner of the big end journals, at the fillet radius. I have seen them break at front, back, or in the middle.
Back in 1968 I cracked all 4 journals of a new, shot peened 1098 crank in 20,000 miles. It did often see 8500rpm though.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thats a fair effort just removed one, it rings nicely, would need a regrind ( is original i believe). Will get it crack tested and leave regrind to new owner ( will get advece from machinest how much he thinks it needs, not much im guessing). All pistons and rods look good, flywheel looks brand new, clutch definately was!. 4 synchro box, moves freely, no idea on condition from looking, lol. Had no oil in crankcase but very clean with thin coat of oil. Busy arvo!

Good one mooman. You're going down the proper route. I lift me lid to yer.

A lot of automotive things don't make sense monetarily, but it is what it is. You're paying for labour basically.

That's like saying why should I pay $30 for this steak cooked to perfection when it's only a $7 slab of cow

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Lillee - 1969 Morris Mini K

My local engine builder will crack test them both and put head through the parts washer over night (usually come up great from past experience) for 60$, I think he is doing me a deal as he has done a fair bit of stuff for me . Will leave the regrind for the new owner but they will know they have a sound crank and head

I took a (-.010") 1098 crank to Spiro at St George Cranks today. Here's hoping...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

What measurements am I looking for to know if it is a standard crank? You sa -.10 how does that work?
Cheers,
Steve

The smallbore cranks are all 1.750" mains and 1.625" big end journals when new. Measure with a micrometer, or a digital vernier.
Standard undersize bearings are .010", .020", .030" and .040" thou undersize.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

i get ya. Basically measuring how much it has worn and regrind according. I can feel a small wear mark on a couple of points (very minor), still all nice and shiny

If you can feel wear marks, it probably needs a regrind. You can feel 1/2 a thou with your fingernail.
Also if it has .001" ovality or taper it should be reground.
Best to crack test it BEFORE grinding, for $$$ reasons!

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

so -.010 is equal to how many though?
Cheers,
Steve

Im guessing that means 100th, so you would regrind to .02? And if you can feel .005 with your fingernail, and if that was all your crank was worn you would regrind to .01. Tell me if im on the right track, got to love maths, lol!

= 10 thou
[thousandths of an inch]

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.