Hi. I'm looking to install the PB smokepump in a new project. I have read through the documentation and the forums, but wasn't able to find an answer to this question.
The Saito radial has the rear facing carb that extends through the firewall into the main fuselage area. The concern is that gas fumes could sit in the fuselage such that a spark (e.g. from a brushed motor/pump) could ignite them. This risk is mentioned several times in the TME smoke pump installation manual, meaning that system will not work.
Is the PB pump a brushless/sparkless unit?