From: darling@simlab.arc.nasa.gov on behalf of Dave Darling [darling@simlab.arc.nasa.gov] Sent: Monday, April 19, 1999 10:07 AM To: Roy Ruiz Cc: 914 Subject: Re: [914] Engine Tin/Cooling Flaps Check At 9:21 AM -0700 4/19/99, Roy Ruiz wrote: >If I'm missing the sheet metal part that covers the alternator (Top lft >corner) would this cause my engine to run hotter? Well, they don't usually put too many extra parts on these motors. My guess is that either the engine would run a bit hotter that way, or the alternator itself would run a bit hotter. But I don't remember a direct path for cooling air to get out that way, so it may not be too critical. >Also how can I tell if >my cooling flaps are closed or open while the engine is running? There should be a spring on the left side of the shaft that connects the two flaps. The shaft runs across the engine just in front of the oil filler. The spring forces the arm on the shaft up and forward. The thermo- stat wire pulls the arm down and aft when it's cold, and relaxes when it's warm, letting the spring pull the flaps open. You can let the engine get nice and warm, and then loosen the nut and bolt that hold the wire onto the arm. If the flaps are fully open, they won't move. If they are not, they will "spring" all the way to their stop. Which is where they should be when warm--so tighten the the nut and bolt on the wire right there. Good luck! --DD Dave Darling 74 914 2.0 (kaput) darling@simlab.arc.nasa.gov "If it ain't broke--fix it until it *is*!"