Bob's Notebook: Technical Information to help you
with your marine engine.
| File | Description |
| AQ CIRC PUMP | Changed design to circulation pump of all Volvo 4 or 6 cylinder in-line engines. Short explanation: remove one pipe, add one hose. |
| ETHANOL & GAS | Volvo Penta Service Bulletin on 10% Ethanol Gasoline Short Explanation: how to decrease water content in fuel |
| BAD GAS II | Volvo Parts Bulletin on gasoline additives causing vapor lock |
| ETHANOL ISSUES | Mercruiser's article from the Mercury Messenger on ethanol problems. |
| DIESEL TROUBLE SHOOTING | Page from Volvo Penta Owners Manual for Diesel Engines |
| DP PERFORMANCE | Volvo Penta Brochure that compares Volvo Penta and Mercruiser Duoprops |
| ENG MOUNT BOLTS | New Volvo Penta engine mounts for D31, D41 and D42 engines Short explanation: have to make a bigger hole for the engine mount on the bracket. |
| EX FLAPPER 31 / 41 | Volvo Penta Parts bulletin explaining exhaust flapper overhaul kit Short explanation: parts list |
| FLAPPER PARTS BULL | Volvo Penta Flapper Parts Bulletin |
| GAS FUEL PUMP | Volvo Penta Chart of fuel pump output pressure for all gas engines with electric fuel pumps |
| GM OIL FILTERS | Volvo Penta Parts Bulletin explaining different sizes of oil filters for GM engines. |
| IMPELLER 825940 | Volvo Penta Parts Bulletin explaining the superceding numbers for this impeller Note: part numbers have changed even after this bulletin has been printed. You may rely on Marine Parts Express RPL numbers or the ONE LIST to find the new numbers. |
| K44 VALVE COVER 1 | Volvo Penta Parts Bulletin explaining that you no longer need a gasket for the valve cover |
| K44 VALVE COVER 2 | Volvo Penta Service Bulletin explaining you no longer need a gasket for the valve cover |
| MERC SHIFT PLATE 1 | Mercruiser Parts Bulletin explaining superceded number for shift interruptor switch for all Mercruisers |
| MERC SHIFT PLATE 2 | (page 2 of above) |
| NEW AIR FILTER 31 / 41 | Volvo Penta Parts Bulletin on Air Filters for 31 and 41 engines. Short explanation: throw away metal housing, replace with plastic, new filter element number |
| SPARK PLUG ID | Volvo Penta Parts Bulletin explaining correct part numbers for spark plugs for all gas engines, 1994 and newer, including large quantity packs |
| TAMPER PROOF DIST | You need a special tool to remove the distributor cap on engines after 2003. |
| U JOINT 1 | Volvo Penta Parts Bulletin explaining U-Joint replacement part numbers for all outdrives after 270, including DP, DPX, SX and DP-S |
| U JOINT 2 | (page 2 of above) |
| UNIVERSAL TACHOMETER | Volvo Penta Universal tachometer (part number 858087) instructions-- how to set the code |
| VOLVO RPM | Volvo Penta Chart full throttle RPM ratings for diesel engines |
PDF Section
| VALVE COVER GASKET KIT | Installation instructions from Volvo Penta for changing the valve cover gasket, kit #876953. |
| GM Oil Filters | Which Volvo Penta oil filter to use for your GM engine. |
| Sterndrive U-Joints | Replacement numbers for complete u-joint assembly categorized by drive type: SX, DP-S, XDP, 270, 290 etc. |
| Rubber Cushion | Engine mount bolt size change for the D31, D41, D42 engines. |
| Fresh Water Flushing | Parts list to hook a garden hose up to flush your Volvo Penta gas engine. Part number 23 is where you connect the garden hose. |
| Prop Puller Tool | To remove stuck Volvo Penta DP-S, DPS-A sterndrives that use the D and F series props. |
