Re: Stus-List Darker Smoke, Harder to Start

Sam Salter via CnC-List Sun, 24 May 2015 18:12:07 -0700

Diesel engine oil is supposed to look black - it's like that a half hour after you start the engine - by design.

sam :-)

From: Jim Watts via CnC-List

Sent: Sunday, May 24, 2015 6:48 PM

To: 1 CnC List

Reply To: [email protected]

Cc: Jim Watts

Subject: Re: Stus-List Darker Smoke, Harder to Start

It's black.

Jim Watts
Paradigm Shift
C&C 35 Mk III
Victoria, BC

On 24 May 2015 at 16:59, Sam Salter via CnC-List <[email protected]> wrote:

What does bad lubrication oil look like?

sam :-)

From: S Thomas via CnC-List
Sent: Sunday, May 24, 2015 5:01 PM
To: [email protected]
Reply To: [email protected]
Cc: S Thomas
Subject: Re: Stus-List Darker Smoke, Harder to Start

If it is cranking at the usual speed, then the compression might be off a bit in one of the cylinders. This can happen if one of the piston rings has got stuck over the winter. I would warm up the engine good and hot and then take for a run. Run it fairly hard for a couple of hours so long as everything appears to be ok. That should get the carbon out, if there is any, and it might loosen up a seized ring.

Black smoke is a sign of a rich mix, but it means little if you have just started the engine after a period of cranking it for a while.

If you did not change the oil last fall, then now is the time to change it. I don't know why, but I have found that lubricating oil sitting for a while in diesel engines is more likely to go bad than in gasoline engines. Maybe it is climate dependent, but that has been my experience limited though that may be.

Steve Thomas

C&C27 MKIII

Port Stanley, ON

----- Original Message -----

From: Edd Schillay via CnC-List

To: cnc-list Cnc-List

Cc: Edd Schillay

Sent: Sunday, May 24, 2015 18:07

Subject: Stus-List Darker Smoke, Harder to Start

Listers,

I find I'm having a harder time getting the engine started and seeing a little bit of darker smoke when it does turn over, as compared to last season.

Once running, everything seems fine -- temperature, water flow, revolutions, etc.

Any ideas or suggestions?

Usually, my solution to engine problems is "get the jib out."

All the best,

Edd

-------------------------------

Edd M. Schillay

Starship Enterprise

NCC-1701-B

C&C 37+ | City Island, NY

www.StarshipSailing.com

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914.332.4400 | Office

914.774.9767 | Mobile

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Re: Stus-List Darker Smoke, Harder to Start

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