How many compression rings in marine engines normally have?

These engines run very well, plenty of compression/oil pressure, they are notorious apparently for being ' a bit smokey' and it does fade when the engines are warm. Are oil ...show more

I had my engines rebuilt and now when I'm running I get an excessive amount of blow by through my valve covers is this normal for a rebuild or do I have other problems

True or False questions 1. You will need a manufacturer's service manual to perform most basic under-the-hood maintenance on your car. 2. During the four stroke cycle of an individual piston, the crankshaft completes two revolutions, and the camshaft...

True or False 1. One horsepower will produce 33,000 foot-pounds of work in one second. 2. Most cars have drum brakes on the front wheels, and disc brakes on the rear wheels. 3. Most cars have the same kind of suspension in the front end as they do in...

with a 4 cylinder engine with very large pistons & a 2.05:1 rod/stroke ratio-all billet machined parts, what are the key areas of failure that need addressed (pistons, piston head shape, valves, valve springs, flow, tune, compression, combustion...

Hi I have '90 Subaru 2.2 engine in a '86 VW Vanagon. The EJ22 has a bad #1 cylinder, I think it has a bad ring or rings. [Oil squirted in cylinder raises compression briefly] I have plenty of room underneath to pull off the cylinder head, so I am considering...

why petrol engines use spark plug to ignite ?? why cant they use compression ignition as in diesel engine ??

I just picked up a 1995 Rm250 off a buddy who I know did the piston and rings and didn't even ride the bike before I bought it. The bike runs great, has tons of power, starts up within 3 kicks, doesn't smoke much but has low compression. I can't kick...

It seems that the fuel type in the marine diesels is a heavier type fuel. In marine diesel engines of smaller caliber, below 400 hp, are the engines the same as in diesel trucks of the same horsepower?