ORIGINAL: unknown
[snip]
I used everything possible to start my engine (keyboard duster, shop vacuum, home vacuum cleaner, "been there, done that" before getting the airtank. The problem with using low air pressure to start a engine is after ignition the engine RPM sometimes slows because of high temperature (NOT ENOUGH RPM TO COOL ENGINE DURING STARTUP). This causes the engine's RPM to slow down because of excessive heat on the BEARING causing the engine to stop turning.
Before the fuel pump time out, your jet is on fire.
Ah, notice that I said a "proper" blower. Vacuum cleaners are not "proper" blowers. You need one that is capable of spinning the turbine to the same RPM as the high pressure air can - typically 5K to 6K or more. If you use a blower of this capacity, the internal turbine temps will actually be lower than with high pressure air because it take more airflow from a blower to turn this RPM than doing it with high pressure air - been there, seen that...
Bob