I had a great day off (day 3 of 4 day long weekend) watched cable TV until midday, then the wife kicked me outside so I got stuck into the F2 engine. I was just gonna shove the K6 head back on it but I had some soft new valve guide seals in the gasket set I bought last week, and I was having a mental battle as to whether I'd go to the trouble of pulling all the valves out to install them, but after I tipped the head upside down and filled each combustion chamber with solvent and watched #3 and #4 exhaust valves empty the contents into their respective ports in short order, I no longer had a choice.
The other CC's were emptying a little slower, but I squirted some air into the exhaust ports and it bubbled the solvent in the CC's, so I knew I'd have to at least lap the valves back in again. I cheated and used my cordless drill rather than a suction cup and stick, but it did a great job, and even though two of the exhaust valves were screwed, a bit of scrounging in my garage turned up two better ones, and they all came up well after some lapping. I washed all the old grinding paste out (extremely important) flushed everything with WD40, wiped it all down and reassembled the valves back into the head, with those nice new valve guide seals.
I repeated the solvent test, this time the fluid just sat there, not moving. I tried the compressed air trick, but this time no bubbles in the CC, All good! I've installed the head and torqued it down in 4 foot pound increments to 16 ft ibs, then in 2 ft lb increments to 20 ft lbs. I'll leave it overnight then back all the nuts off and re-torque it to 20 ft lbs again, assemble the cam and rockers, time it, do the valve clearances, and shove it back in. I'm really looking forward to getting it running properly after 5 years of disappointment! Cheers, Terry.
