Not to be an alarmist, but white smoke usually means a coolant leak, such as a blown head gasket. Take a sniff of the exhaust. If it has a sweet smell, you've got an internal coolant leak. Is your coolant level going down, with no apparent leak?
Gary S/V Kaylarah '90 C&C 37+ East Greenwich, RI, USA ~~~~~~~_/)~~~~~~ On Sat, Apr 1, 2017 at 5:50 PM, Josh Muckley via CnC-List < [email protected]> wrote: > You can remove the injector from the block. Turn it upside down, > reconnect to the fuel pipe, turn the engine over until the injector starts > to spray. Pop, pop, pop. Watch the spray pattern. It should be a clean, > wide cone pattern, equally aerated, fine mist. This is a test you should > do before you send it to a shop. > > If you want to attempt to clean it yourself you can unscrew the 2 halves > of the injector, remove the spring and valve needle. Clean all the pieces > with something like carb cleaner, berrymans b12 chemtool, or toluine. You > have to be careful not to scratch any of the internal components. A > hardwood scraper can be fashioned or paint stir stick or tooth picks. When > you satisfied, reassemble the same way it came apart. Re-test for spray > pattern. Re-install. > > While you have the injectors out I like to test compression and clean the > precombustion chambers. They can get pretty well covered with carbon which > will make them harder and harder to remove. You'll probably want to > replace the thin copper ring between the two halves. There's also a lead > gasket and a copper foil disc which go between the injector and the > precombustion chamber. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Yanmar 3HM35F > Solomons, MD > > On Mar 31, 2017 10:06 PM, "Brent Driedger via CnC-List" < > [email protected]> wrote: > >> Greetings all. >> >> The 1GM10 Yanmar on my 27 began to give me issues last summer. The usual >> complaints, hard starting, ran well once it was going. I replaced the >> filter in the fall and my next move is to replace the old fuel and clean >> the tank. >> But judging from the white smoke in the exhaust I'm thinking the injector >> spray pattern is off and I'm getting some dripping. I'm planning to >> extract and clean it or replace it. >> Any tips from those who have done this would be appreciated. >> >> Brent Driedger >> 27-5 >> Wild Rover >> Lake Winnipeg. >> >> Sent from my iPhone >> >> _______________________________________________ >> >> This list is supported by the generous donations of our members. If you >> wish to make a contribution to offset our costs, please go to: >> https://www.paypal.me/stumurray >> >> All Contributions are greatly appreciated! >> > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > >
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