Unbeknownst to most pilots, a particle as small as a single strand of hair could cause your engine to begin to miss. These particles gain entrance into your fuel system every time you fuel up. Once the particles are in the tank the fuel pump draws them

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through the fuel line and into the filtering system. It is here where the system must capture all these tiny particles. If it fails your injector nozzles over time can become partially or even completely clogged.

An injector nozzle that is completely clogged will cause your engine to miss. This is because the cylinder that the injector is on is not firing. While the power that is lost is an inconvenience for most pilots for others it may be down right hazardous. In most situations like this no lasting harm is done to anyone or anything.

We come to a different story with a partially clogged injector. When a cylinder fires you want a controlled burn to take place. Partial clogging leans the mixture to the point where a detonation occurs rather than combustion. When a cylinder detonates temperatures can reach scorching levels. Consequently the heat generated cannot be normally dissipated. Under normal conditions heat is dissipated through the piston and connecting rod to the oil. With a clogged injector heat is dissipated through the cylinder wall and heads to the cooling fins, even the incoming air is affected. If this continues a hole can be melted through the piston, the rings can seize or the valves may melt off. Engine failure in flight is very likely.

How are BDS filters going to do a better job than the ones that are on my plane now?

If you haven't made any modifications in this area chances are you have no filters installed. Most models came only with screens designed to capture large particles. Partial clogging of injector nozzles is the result of fuel contaminant particles that are small enough in two dimensions to pass through the various screens in your fuel system. Most screens can stop these particles from traveling any further until you come to the third dimension. When it comes to particles that are longer than they are wide, such as hair or fibers they tend to slide through a screen the long way and then turn crosswise resulting in a partially clogged injector.

Beryl D'Shannon Injector Nozzle Filters ensure that no particle will ever be able to clog an injector nozzle. These STC'D filters are made of a stainless steel wire mesh compressed tightly into a brass casing. Our filters have stopped particles as small as 6 microns in any dimension. Installed with wrenches in about an hour, they are the cheapest positive protection that you will find in the market today.

Beryl D'Shannon Injector Nozzle Filters are available today for the following engines:

IO470C, IO520B, IO520BA, IO520C, IO470J, IO470K, IO470N, IO360C, IO360D, IO470L

Currently not available for:

IO550B, IO520BB, IO520CB

*All engines equipped with fuel divider brackets that only have 2 mounting legs must be exchanged for brackets with 4 mounting legs.

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