Mike Stirewalt wrote: > I've attached my favorite VW head picture. One of our old timers up > in Oregon sent this in. If memory serves he had over a thousand hours > on this engine. Those valves are . . . awesome.
That's a fairly typical valve-sucking scenario, where the valve head goes out the exhaust port and the rest of the engine develops a miss and low power, but no other urgent symptoms. I once rebuilt one that the lady had been driving for 6 months and thought maybe it needed a tuneup. The compression check told the story! It's not always just an inconvenience to be addressed though. See the enclosed photo. This is why I'm on a high-quality valve and seat binge. You can't just accept a pair of heads from a reputable source...often the vendor can't (or won't) tell you the valve metallurgy, so what are you really getting? It really matters. This engine ran for about 10 more seconds... Mark Langford ML at N56ML.com http://www.n56ml.com -------------- next part -------------- A non-text attachment was scrubbed... Name: dropped_valve_sm.jpg Type: image/jpeg Size: 176098 bytes Desc: not available URL: <http://list.krnet.org/mailman/private/krnet_list.krnet.org/attachments/20160701/83490d60/attachment.jpg>
