Dropped Valve Seat... Nice

[Gregory_Miller]

A hacksaw blade works really well, but if the slot is completely plugged with flashing, you'll need to open it up a bit first with something like a long 3/16 drill bit, long cause you'll need to get down there a ways and a short drill bit won't reach when attached to a drill. Several punches through a completely plugged slot until it's open enough to get the hacksaw blade in there will do it. By removing both upper and lower shrouds, you can see light passing through to determine how you are doing. I'd work from the top so that you don't have all that stuff falling in your face as you remove it. Oh, wrap a bit of electrical tape around the end of the blade you hang onto so you don't tear up your hand. :)

[mart]

Thanks Greg, now I have even more work to do, still , its better to do it all now then have problems later, all of these tips are great to help gain reliability

[4carbcorvair]

I used a looooong 1/8 drill bit picked up at lowes. Buy a couple, I broke one doing mine. I used the drill to do all the cleaning. I tried a hack saw and it took longer and didnt seem to clean up as well, for me.

[ratech]

Just so you guys don't feel so bad, this same stuff can happen to your "distant cousins" like Porsche flat-sixes. I own an old '66 Porsche and routinely take it on some long driving adventures, typically through the California and Arizona deserts. I was always holding my breath on some of the 10-mile long grades. I finally designed a thermocouple-based system to monitor my head temps. You really learn a lot about how ambient temperature, load, driving habits and air-fuel ratio come into play with head temperatures. Typically my temps were in the low to mid 300's, but on those heavy grades I've seen it shoot right up to 400 degrees. That's the place where Porsche guys start getting nervous about dropping seats, etc. So, having a good monitoring system is key so you know when to back-off or pull-off the road for a bit. I started making these monitors for other enthusiasts, and thought maybe someone here in the forum would be interested in it. Please check out my website for more details: http://www.ashlocktech.com/CHT_Monitor.html

[cad-kid]

Looks like a nice display. Thanks for posting a link.