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Clouds of grey smoke and suphur smell when diesel engine starts

I have a ford mermaid 300 tubo plus diesel engine fitted to my boat and while it runs very well it is extremely smoky when it starts first and amoky a little when warm and idling

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Try checking the fuel injectors to see if they are leaking.

Posted on Feb 02, 2009

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How do l fix an outboard motor that runs fine for about 5 minutes at full throttle and then abruptly stops and will not start until it sits for awhile?

Check that the priming bulb is fitted with the arrow pointing in the directions of flow to the engine. Make sure the vent is open on the fuel tank. Check all fuel lines for kinks or blockage. If none of that fixes it, you need a marine engineer to check the fuel pump and carbs.

May 13, 2016 | Fishing Boats

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Where are the engine codes located on a 1970 Pacemaker 45' boat. Where are Boat Identification codes located on pre 1972 boats? Specifically this Pacemaker?

With a boat 44 years old, your boat engines may have been replaced or at minimum, overhauled. You might resubmit your question with some easy information you can add:

Gasoline or diesel engines?
Many were Crusader engines & you can usually see the name like this on the top portion of your engines.
You can see what color the valve covers are (blue, black, etc.).
You can see if they are V-8 engines if they have two long valve covers on top.
Most engines have a name plate on them (yours may be gone if original engines). Any mechanic you run into might find it quickly or recognize the engines.

Enjoy your boating. Pete

Apr 04, 2014 | Fishing Boats

2 Answers

225 hp 2 stroke will start and idle well but will not pull out of the hole and acts starved for gas. Some smoke and fuel smell present. 1995 Black Max model.

Check your hoses, o-rings (if, any) and all connections. Possible pin-hole in the fuel line. Check all engine connections for possible leaks and proper torque. Good Luck.

Jun 11, 2012 | Fishing Boats

1 Answer

Alternator on 2001 caterpillar 3126 marine diesel varies in output from 8 VDC to 13 VDC.

Disconnect the block heater. There should be a 6-8AWG cable running along the top of the engine. This heater is needed only in extremely cold climates. They may smoke a bit more, but your voltage should remain steady between 12-13VDC.

Jun 26, 2011 | Fishing Boats

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Have a 200 hp mariner which surges while running and smokes a lot when idleing

Fuel mix is likely, ensure manufactures specs are followed when mixing. Most modern 2 stroke outboard engines run on 100 to 1 mix, unlike older ones that ran on 50 or 33 to 1.

Cheers, Timo.

Apr 17, 2010 | Fishing Boats

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Just changed the oil in my two f115 OBs first engine oil was slightly dirty, but looks normal. Second engine oil is a muddy grey and does not smell like fuel. What are the possible problems?

They used to check oil for water by dripping a drop on a hot surface, if it sizzled it had water in it, If it smoked , it was just oil. I would do the water test and then find the leak if you have water in there, Hope this helps.

Mar 21, 2010 | Fishing Boats

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Can I place an in line bulb primer on a yamaha 2 stroke watercraft, it will not start when cold withoutv starter fluid. Also it seems to smoke alot when idling.

First - Never use starting fluid on a 2 stroke engine. It could wash the oil off the bearings and cause the engine to seize. Try using WD-40 to start it when it is cold. Another thing to try is getting a spray bottle and put your mix gas in it - then spray that into the carb to get it started.

Most of the primar bulbs are 'universal'. You could pick them up any boat supply house, you can also try NAPA.

Two stroke motors smoke. Here is some things to check -if it is oil injected see if you can adjust the amount of oil, if you have to premix the gas, double check your mixture ratio. I like to run most two stroke engines at 40:1 but use good quality 2 stroke oil.

Aug 07, 2009 | Fishing Boats

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What engine should fit my 28´bayliner boat

Yes there is. Saw one at a boat show and I believe it was also Swedish. You may want to look for used replacements on the web. I do not know where you live, but there are boats on the Great lakes with low hours because of the short boating season. There are also victims of hurricanes with good engines down South.

Jun 18, 2009 | Fishing Boats

1 Answer

Volvo Penta marine diesel 2003T engine has diesel in sump

I owned one diesel engine. I would say the engine siphoned the diesel after it was shut off.
The throttle controls may not be closed. The injectors were tested for their opening and spraying, but were they tested for closing and sealing when off? Diesel fuel lines maintain a vacuum or they get air bubbles. Cooling cylinders create a draw right into the crankcase. Last idea-crankcase vent clogged

May 11, 2009 | Fishing Boats

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4hp Force Outboard motor overheating

Its possible it sucked up weeds or a plastic bag it into the intake and dropped off when you shut it down.

Mar 16, 2009 | Light Outboard Motor Boat Bass Fishing...

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