I pulled out the plugs on the head today. I also opened up the cylinder stud channels to 11.5mm. As I said in the last post, the plan is to cut all the threads in the head before I paint it so I can dry block it later on, but just open up the channels now so I have enough flow. I may go straight with a dry block but I'm not sure at the moment - depends on whether I can route the hoses around the oil cooler hoses easily.
If I do go with the dry block I'll be using 10mm banjo bolts on AN4 fittings and will route them over the top as zed has done.
I have a couple of questions:
- What's the deal with the channels for the front outside cylinder studs? Looking at the galleries in the head oil runs into them from above, but looking at the crankcase it seems to be a dead end.
@zed1015:
- how did you get the M8 tap started for the plugs in the head? Did you make a jig to bore the holes out to ~7mm on the angle or did you just use an M7 tap (or imperial equivalent)?
- any chance you want to make me a manifold?