Well we got it all set up. Tried to start it and fuel poured
        out of all four injectors. Injectors full on all of the time.
        No spark. Flooded the engine. 37 pin D submin connector wired
        backwards. Way too easy to do. I got on Tracy case years ago about
        this connector. More about that soon. Hopefully we did not
        fry Tracy's computer. Will know more about that on Sunday
        night when Tracy gets back from a flyin.

        BTW if you are building a slide throttle seal it well
        around the bottom. You want the fuel to flow into
        the engine and not out between the plates. I'll
        makes some changes in the drawings to make this easier.

        Does anybody know of a good fuel sealant to use between
        the plates of the slide throttle?

        Paul Lamar


    I have been using the polyurethane glue used to install windshields for
    years to seal fuel tanks. can be found at paint shops or auto glass
    shops. Very inert to both auto and av gas.
    But watch the temperature. It is not a high temp resistant product.
    smale@ncinternet.net

Paul,
A tragic accident happened to one of our BD-5 builders because he used an incorrect material to seal his fuel system. The material was partially dissolved by the fuel and blocked the fuel lines causing the engine to fail. Here are three references to what is commonly referred to as "Pro-Seal" . It is designed to be used where fuel is present. It may NOT be the answer in this case if high temperature is a factor. The point I'm trying to stress is, make sure what you use will work for your application and not endanger you in the process. These reference addresses are from Acft Spruce but many other vendors sell this and similar products.
Regards,
John Lewis
N501BD

Pro-Seal Type Tank Sealants
Pro-Seal and similar products are two-part polysulfide integral fuel tank and fuselage sealants. They have exceptional strength and jet fuel resistance as well as excellent resistance to oils, solvents, all fuels, and weathering. We offer a Pro-Seal equivalent which is a B-2 type material and meets...
http://www.aircraftspruce.com/catalog/appages/prosealant.php

Pro Seal Type Tank Sealant
Kit A (2.5 Oz.) cartridge -2oz. sealant P/N 09-38500 [PRICE 09-38500] [BUY 09-38500] Kit B (6 Oz.) cartridge - 3.5 oz. sealant P/N 09-38510 [PRICE 09-38510] [BUY 09-38510] Pro-Seal and similar products are two-part polysulfide integr...
http://www.aircraftspruce.com/catalog/cspages/prosealtypetanksealant.php

Fuel Tank Sealants
http://www.aircraftspruce.com/menus/cs/fueltanksealants.html


Thanks John.

We need a heat shield anyway so I will have one of these welded up on Monday.
The tray will catch the raw fuel in the event of another flooded engine.
Perhaps good old JB Weld is the way to go for sealing the slide
throttle. It is epoxy so it should stand up to gas fairly well and
it will take the temperature. The bolts will probably then become
redundant.

Paul Lamar

Hi Paul, As I read it you are looking to seal for the throttle slide
from leakage of fuel. As your injectors are upstream it needs to handle
fuel.
Regards Don


True Don.

Paul Lamar