90_spec

So,
Now the block has been through 3 stage cleaning with the gallery plugs out, I'm ready to start rebuilding.



Had a big tidy down of the bench in the garage to begin rebuilding,
Replaced the oil gallery plugs with new and thread sealed then (not thread lock!)
Cleaned the main ends Of any dust and laid in the new std size bearing shells.


Next a liberal coating of engine oil on the bearings before laying the crank in,
I slotted the thrust bearings in first with a dab of oil to hold in place.
Oil groves pointing out!

Other half of the bearing then put into the main caps and laid in, all done finger tight and crank rotated as I nipped each up to 40Nm inside out pattern
So armed with plastigauge I proceeded to have my first go at measuring the bearing tolerances .
For some reason I thought it was a tricky procedure until I asked the chap at work how it was done... Easy peasy
And what are result!

Centre bearing is 2 thou

no 4 is 2 thou

No 1 is 2 tho... A pattern is emerging people

No 4 is between 2 and 1.5 thou

And so is No 5
And for all you who have never used it, it's like this...

Just cut enough to lay across 85-90% of the bearing , as it will taper towards the outside

Then torque the cap down (Don't rotate the crank!!!)
And then remove the cap,
Use the supplied comparison gauge (bit of plastic with marks on) to read off your tolerance

I'm bloody pleased with that, given its an old CVH with an unknown background and running standard bearings
Need to clean the Pistons and rods up now and do the same with them tomorrow
Rich