I sent the post below to Corvair Net last night. Thought you Kr'ers may have some advice too.
Mark Jones (N886MJ) Wales, WI Visit my web site: www.flykr2s.com E-mail: flyk...@wi.rr.com ----- Original Message ----- From: Mark Jones To: Corvair Net Sent: Saturday, April 21, 2007 2:02 PM Subject: Aborted takeoff. This morning I arrived the airport at the break of dawn. I was looking forward to a nice flight in the 45° smooth morning air. My run up seemed fine. All indications were everything was good to go. I taxied onto the 5,800' runway and firewalled her. As she picked up speed I noticed my rpm was not getting above 2600 and this is not normal for me. I usually see around 3000 on take off roll and will get 3250 on climb out. Something in my gut told me to abort, which I did. I called the tower and since I was the only one on the field at the time they said I could do a 180° and taxi back, which I did a high speed taxi back. I decided to take her to the hangar and do some checking. At 1000 rpm: Oil PSI 18 lbs, Oil temp 280°, EGT off low end scale, CHT 280°. At 2600 rpm: Oil PSI 28 lbs, Oil temp 230°, EGT 1225°, CHT 270°. Next I pulled the plugs: 2-4-6 were black sooty showing richness on that bank. 1-3-5 were clean slightly white showing leanness on that bank. Next I did a compression check: 1 = 80/76 3 = 80/70 5 = 80/70 2 = 80/76 4 = 80/77 6 = 80/77 Thoughts anyone? Mark Jones (N886MJ) Wales, WI Visit my web site: www.flykr2s.com E-mail: flyk...@wi.rr.com