What was found
EXCESSIVE WEAR FOUND DURING COMPRESSION TEST. EXHAUST VALVE WAS LEAKING. EX GUIDE MEASURED .4384 INCH AT THE TOP AND .4624 INCH AT THE BOTTOM. EX VALVE MEASURED .4337 INCH AT THE TOP OF THE STEM AND .4263 INCH AT APPROX 2 INCHES FROM THE BOTTOM OF THE VALVE. CLEARANCE BETWEEN VALVE AND GUIDE IS .0361 INCH. SERVICEABLE LIMIT IS .006 INCH. NO METAL WAS FOUND IN THE OIL SCREEN. ENGINE IS NOT EQUIPPED WITH A SPIN ON FILTER. ALL OTHER CYLINDERS'' COMPRESSIONS TESTED OK. ENGINE WAS INSTALLED AFTER FACTORY REMAN IN JAN 98. M OR D SUBMITTED BY HAP''S AIR SERVICE AMES, IA. (X)