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Q: (Ref: Issue #4, pg. 4) If a builder drills holes incorrectly in the Kevlar engine mount for the bushings or the MS20074-05-24 bolts, is there a way to correct the problem or must a new mount be bought? (Chris Young, #469)

A: Put a thin coat of grease on the bolts. Install the bolts and fill the elongated hole with cotton flox and resin. After cure, pull out the bolts and clean area. Watch area after a few hours of engine run. If flox repair is wearing, buy a new mount. (from QAC)

Q: Is anyone interested in Plexiglass wing tips for the Q2? I'm making some to accommodate strobes and lights. Should cost about $100 per pair. Write if interested. Jan Bowman (#2121), 135 Camino Pablo, Orinda, CA 94563.

Q: I have 'flakes' of hardened Part B resin lying on the bottom of my epoxy pump reservoir. Heating the resin does not seem to remove them. Will they clog the pump valve? Is there a way to solve this? (Ronald Cross, #2397)

A: While Safe-T-Poxy has proved to be an excellent system for the homebuilt community; it does have a couple of disadvantages. One of these is its shelf life which is only 1 year when stored at 77 degrees. The "blush" or "thickening" that sometimes occurs can usually be traced to temperature cycling. Since many Quickie and Q2 projects will be stretching the shelf life of their epoxy before being used, it is best to avoid any thermal shocks. Store your epoxy in a place, which is about 75-80 degrees and keeps a fairly constant temperature. Keep your bottles off cold floors and away from variant heat sources. The same applies to the pump itself. If you use a heating element or light bulb to keep your pump warm, leave it on continually rather than allow the epoxy to cool. As you mentioned, the Part B resin is more prone to give you problems. Unfortunately, its dark color tends to make one a bit apathetic in checking. Before pouring epoxy into your expensive ratio pump, tilt the jug over and inspect for any 'dregs'. These HAVE to be removed before using. If the boiling water technique noted in QAC Newsletter #3 does not work, the epoxy is probably too old and should be discarded. Although every epoxy pump should be drained and cleaned on occasion, it is especially true if you notice sediments in the reservoirs. Without question, these semi-solids can affect the proper action of your check valves, especially if your pump sees infrequent use. A good cleaning may be an occasional hassle, but it is time well spent.

You can order a PDF or printed copy of QuickTalk #7 by using the Q-talk Back Issue Order Page.