Kinsler_Handbook_#32 December 2017

179 1834 THUNDERBIRD TROY, MICHIGAN 48084 U.S.A. Phone (248) 362-1145 Fax (248) 362-1032 Kinsler Fuel Injection, Inc, FUEL TANK CONSTRUCTION AND LOCATION LOCATION When mounting the fuel tank for a mechanical fuel injec- tion system, DO NOT locate the maximum fuel level in the tank above the nozzles. This is to prevent the fuel from draining into the engine if the fuel shut-off valve is left open.... this is not a problem in an EFI system as the injectors shut off tight when the engine is not running. SHUT-OFF VALVE NEVER shut off the flow to the pump above idle speed; it may cause damage, since the fuel lubricates the pump. If a shut-off is installed to give access to a pump inlet filter, make sure the inside diameter of the shut-off valve and any adapter fittings have the proper inside diameter. See Page #102 for minimum inlet hose sizes. FUEL CELLS AND/OR BLADDERS Due to the design of these types of fuel tanks, it may not be pos- sible to install any baffles. The best thing to do is to fill the tank with a fuel compatible foam baffle material. The return fuel shoots across the tank, causing minimum frothing. Deep construction minimizes slosh due to car movement; insures clear fuel at the outlet. Outlet to the rear is best; to the side is OK. This design shoots the return fuel directly down into the tank, but the froth comes back to the surface before reaching the outlet. It is preferred to place the outlet toward the rear of the car; can be sideways. CAUTION - The foam MUST be compatible with the fuel and additives that may be used. If the foam breaks down, it will clog the fuel system. Even if the manufacturer states that the foam is compatible, put a piece of it in a sample of the FUEL BEING USED and TEST IT !!! FILTER BETWEEN TANK AND PUMP We strongly encourage CAUTION when using any filter on the inlet side of any pump. A filter can restrict the flow if the pump has to suck the fuel through the filter, the vacuum it has to pull to do it lowers the fuel’s boiling point and may cause inlet cavitation. It is always best to strain the fuel when putting it into the tank and use a Kinsler filter between the pump and the barrel valve. If you want to use a filter before the pump, have a Kinsler technician spec a proper Kinsler Monster Mesh filter. Make a slit in the side of the tank. Slide a .050” to .125” thick plate into the slit so it extends 1” below and 1” to all sides of the fitting. Weld in place. The incoming force of the fuel will be dissipated against the plate. It is preferred to install this type of tank sideways in the vehicle. This design is poor since the return fuel shoots directly into the fuel, froths up, and the froth is easily sucked out the outlet directly be- low. Early Moon tanks were constructed like this. © 2017 FIX FOR DESIGN #3; MAKES #2 BETTER FUEL TANK CONSTRUCTION : DESIGN #2 Rating: GOOD DESIGN #3 Rating: POOR DESIGN #1 Rating: EXCELLENT