FREE SHIPPING ON ORDERS OVER $350 (USA ONLY - SOME EXCLUSIONS APPLY) | 877-4-SPRUCE
Thumbs 1
Thumbs 1

B&C BC704-H INVERTED OIL PICKUP, 4CYL LYC

$235.95/Each
Part# 07-06790
MFR Model# BC704-H

Overview

This provides a direct replacement for the Lycoming vacuum pump pad adapter. Its unique design offers both a standard vacuum pump pad adapter AND provision for inverted oil pickup. The vacuum pump pad is often used for a B&C spline-driven alternator, such as the SD8 or SD20.

Aircraft with oil systems using the standard "T" fitting on the firewall will typically experience a 3 to 5 second drop into the “yellow” oil pressure range after rolling inverted. However with this installed, the oil pressure will have a momentary blip or “wiggle” on the oil pressure gauge as the ball valve switches ends. As a result, the engine receives better lubrication and prop surges are lessened.

The comes with oil seal installed, gaskets, and an MS20822-10D 90 degree fitting. Just slip the existing vacuum pump gear and thrust washer in, and it is ready for installation on the engine. The standard Lycoming vacuum pump gear and washer will fit (gear and washer not included).

Alternate PN: VAC-2/4

Reviews

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

View in Catalog

View Image View in Catalog