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Put it all back togther, primed in a few 10s cranks and fired. Smoked heavy white at start - figured it was oil burning off from oil in valve stem when i installed. Put i at about 100% load on average for about 2H Here is a thermal of exhaust, took from different angles so that differences...

For the valve video it was hard to see the lap area so I made my own version of prussian blue with china sharpie. Should be more clear how off axis the seating area is from the stem this valve is: https://www.youtube.com/shorts/q9mk1tG_0mE Since china sharpie worked Im going to order some...

Here are some thermals in order of time :

If yours smokes white till warm ---- or misses during load/warm, one of these issues may be the ticket-

With head off I figured to check lap on valves- head gasket included https://www.youtube.com/shorts/UHL4CLXxZnM https://www.youtube.com/shorts/LZ-HcCC8G-o This valve is out of round in bore and only grinding on 1 side? I was expecting thin grind band on all of them. This one is out of wack...

Greetings all, I am new to forum and my spelling is usually horribel. Purchased a 803a several months ago, white smoke at start up-didn't load test at POS. FF today, load tested after purchase with misfire under load, pop and leak back tested injectors myself ok, no resolve. Replaced fuel...

I'm in