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crankshaft specs
Posted: Tue Jan 13, 2026 3:08 pm
by Dean.s
I've removed the crankshaft and bearings etc from the case.
It's a standard 1700 crank, w code engine.
My new gauge tool is arriving later today. What are the measurements for
crankshaft bearings on the shaft
con rod bearings on the shaft.
are there tolerances for these measurements?
thanks in advance
Re: crankshaft specs
Posted: Tue Jan 13, 2026 8:30 pm
by Bruce M
The crank outside diameter will have a spec for the main journals and the rod journals. You need a micrometer or 2 to measure that (micrometers are 0-25mm, 25-50mm, 50-75mm, etc).
The case bores will have a spec, and need to be measured with the case bolted together at the correct torque.
The inside of the bearings will have a clearance spec, this is measured inside the case / rods when assembled and torqued to spec. You can measure the clearance with plastigauge or a bore gauge.
You perhaps already know all this but was maybe worth sharing.
Re: crankshaft specs
Posted: Tue Jan 13, 2026 8:34 pm
by Bruce M
Re: crankshaft specs
Posted: Tue Jan 13, 2026 8:36 pm
by Bruce M
Re: crankshaft specs
Posted: Tue Jan 13, 2026 8:37 pm
by Bruce M
The specs on the right side are the type4 1.7litre engine
Re: crankshaft specs
Posted: Thu Jan 15, 2026 10:31 pm
by neilbardsley
I have a 1.7 crank that run well in my car before replaced. If you find you need a replacement you are welcome to it
Sent from my 22081212UG using Tapatalk
Re: crankshaft specs
Posted: Sat Jan 24, 2026 7:08 pm
by Dean.s
thanks both. I've sorted a new one with stateside, aswell as all the machining and bearings etc.