This in turn creates pressure in the combustion chamber against the piston, thus starting the engine.
YANMAR 8 HP MANUAL
As the engine is rolled against compression, the manual pump is activated and the sprayed fuel ignites. The engine usually has a manual pump that will force an amount of fuel that will be sprayed through a nozzle in the combustion chamber against the heated area. On these engines, the head or a bulb in the combustion chamber is heated to near red heat, usually with a kerosene torch. The semi-diesel, or hot-head, engine is not a true diesel, but retains the operating functions of the diesel with the exception of high compression. Video Clip: Click to watch a video of a Yanmar 1GM running
Removal and inspection of the air filter on the 1GM.Checking and tensioning the alternator drive belt on your Yanmar 1GM.Changing the primary fuel filter on your marine diesel installation.Adding a relay to the starter circuit to fix intermittant starting issue.
YANMAR 8 HP SERIES
Adding a hour meter to your Yanmar GM series engine.TOP TIP: Use this handy printout to record all the important details about your Yanmar engine and then file it away safely at home for future reference. The older 6.5 HP 1GM weighed 71 kg (157 lbs) with the gear removed. The raw-water cooled Yanmar 1GM10, complete with KM2P transmission weighs 76 kg (167 lbs). How heavy is a Yanmar 1GM10 Diesel Engine? The difference between the earlier and later models is in the displacement and operating rpm of the engine (and resulting horsepower developed). Yanmar upgraded the 1GM to the 1GM10 some time in the late 1980s. There are two main model variants of the Yanmar 1GM/1GM10 in circulation. The 1GM / 1GM10 is a stalwart of the Yanmar range, truly representative of Yanmar’s famed reliability through simplicity.