Engine rebuild day dawned, finally all the little bits in the garage would become one big bit, or at least that was the plan.
Block mounted on the engine stand, old shells in place, crank positioned
So, time to attack the dreaded….
The rope seals had been soaking in premium engine oil for two days….
The two seal holders were clean, and we were ready for the off. I added an inch of gasket sealer to the leading edge of the holder (when viewed from the rear the crank spins anticlockwise)
Then it was time for the dreaded rolling, I used a hammer shaft and starting at the centre worked the seal into the slot moving outwards. This took about 20 minutes and all looked good.
I used a stanley blade to shave off the excess and then clamped it to the crank.
BUGGER, it way just too tight. I took the two halves apart and then lightly hammered the hammer shaft I’d used to roll the seal into place. One half did give a little, clamped them back up and the fit was fine, tight but could be rotated by hand. Problem was that extra bit of give left me with a 3mm gap.
Double bugger and a new set of seals required.
Oh well, on with the setting of the crank on the mains.
Lovely new shells in place. Lowered the crank into position and added the centre main cap (as this has the thrust bearings in and I wanted to check end float). As soon as I got beyond finger tight on the bolts the crank locked up. I needed a breaker bar to shift it – not good.
I spent the next two hours faffing around shells out and cleaned, old thrusts tried, the remaining bearing caps fitted loosely, every time the crank locked up.
Something isnt right.
The crank mic’d up as 20 tho under standard (as it should, having been ground) the shells mic at 10 tho each over the originals (matches the crank) maybe the mains have been ground a little eccentric. That I cant check though. So, strip it all down again, pack up in the Landy and back to the machine shop so they can figure out whats wrong.
The crank was as free as a bird, pre regrind, something much have happened during the grinding. I’ll report back when they’ve done the investigation and can shed some light on the problem….
Meanwhile, its back to the brakes, oh and order some more….