Week Six

This week started with an engine pull out of a Puget Sound gillnetter. The boat had three inline six Volvos in it with two out drives on the sides and a Hamilton jet in the center. We pulled the middle engine and the jet package. The rest of the week consisted of small jobs such as setting up the A-frame in-boat I-beam engine puller, access hatch R&R, and Yamaha outboard services. One thing I learned and found quite interesting was how Volvo's supercharged/turbo charged engines worked. The supercharger is on an electric clutch to accommodate the turbo lag at low end RPMs. Once the turbo spools up, the supercharger is electronically shut off by a computer controlled management system (ECU). The important part to make the system work properly is an electronically controlled "Y valve" in the intake side of the engine that dosent allow pressure to escape out the air filter after going through the blower(supercharger). I documented 36.87 hours this week for a grand total of 185.52 hours.

Triple engined gillnetter we pulled the middle engine and jet out of. 

Turbo/supercharged Volvo described above (rags are covering the Y-valve described).

"In-boat" A-frame engine puller.

Ford Lehman we installed using the A-frame.