Hello, little update:
The engineblock is almost ready. Only the head dowels must go in and that will be Saturday.
At first the deck is skimmed 0,3mm and the compression ratio will be now 1:12. The deck is skimmed on a special device that is connected on the main bearing part of the block. Dolomite engines are never drilled straight and this way the deck is flush with the crankshaft bore. The piston are now evenly above the deck. Before there was a difference from about 0,15mm. The first was straight with the deck and the fourth was 0,15 below. It can also be seen on the jackshaft keep plates. There's alway's wear on 60% of the half circle so the jackshafts are not 90 degrees in line but alway's a bit off.
I did want a better oilflow to the camshaft and decided to have an extra external oilpipe to the head on the rear of the engine and head. The rear jackshaft bearing would be my take off. The oilflow at the front is pulsating to the head. This is to maintain good lubrication for the bottom end. I'm going to make a little flat spot on the rear jackshaft journal, exactly timed with the front so at the same time oil is pushed from two way's to the camshaft and rocker shaft. This is why the external oilfeed kits are bugger because the direct oilflow goes to the rockershaft giving too much oil what's intended for the bottom end. The pulsating on the ohc 4 and 6 cyl is by a flat spot on the rear of the camshaft.
When measuring the exact hole for the take of i discovered that the main feed is not lined up with the groove in the jackshaft. The overlap was 0,8mm. The oilbore is about 4,5mm and the groove is 4,75mm. You can see the darker part where the groove is. I did make the main oilhole a bit oval towards the groove to have more oil there for total lubrication of that journal and for the distributor/oilpump gear what also gets here the oil from.
I opened up the waterway's to match my base head gasket. This gasket is also on the head and so the waterway's are matched.
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