John, The engine had lost a bit of RPM/power so I started checking things out. I redid valve clearance check, all good, so I pulled the heads and found 2 burnt exhaust valves. I bought new replacement valves from Revmaster and new springs. I gave it all to a Cylinder Head shop here in Kansas City and had them do the work. They replaced the exhaust valves and cleaned everything up to include regrind on the seats. All told about $200. Pretty routine requirement for a VW engine, per the folks from Great Plains and Revmaster.
I flew again this morning with the EAA 91 Chapter breakfast club. Landed on a grass strip in Lincoln MO (0R2) and walked to breakfast. The grass strip was a little rough for my small KR wheels but she did fine. Thanks, Rob From: John Caudle <jdl...@yahoo.com> Subject: Re: KR> RE Aircraft Registration To: KRnet <kr...@mylist.net> Message-ID: <595905.42947...@web65502.mail.ac4.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Hi Rob, Was the problem an exhaust valve or seat? Gods Speed, J.E. Caudle Fenwick, WV 363TB (On the Bench) <<SNIP>> The Revmaster engine has had a cylinder head reconditioning at 250 hours this year. <<SNIP>>
