Smoking ford sabres

[maikos]

I have a 1973 Northshore Ranger 36 with 2 x 210hp turbo charged ford sabres and they smoke, I mean really smoke.The units are well maintained and start evrery time required but low rev running unning both on and off load they smok badly. The turbo,s cut in at 1700 rpm and the units will achieve maximum book RPM.
Any one out there any ideas as I risk loosing friend due to the 2 motors

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[miket]

These engines are renowned. Excellent engines but plain smoky.
I tried a Fairey Phantom once with the same engines. The owner warned they would be a "bit smoky on start up". He wasn't joking. The entire marina disappeared. It didn't really improve until we were doing 20 kts plus.

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[burgundyben]

I think its caused on the old dorset block motors by the balance of compression and turbo boost, low comression and high boost or maybe the other way round, I think there is an anti smoke system that can be retro fitted, have an idea lancing marine make it. Hope this helps.



<hr width=100% size=1>I didn't knacker TCM's copper it was Trazie

 

[hlb]

Do like me and give it a good dose of Soltron. It wont stop it but it should halve the smoke. Well it works for me.!!

<hr width=100% size=1> Flags Solly MFBR</font color=red>
Haydn

 

[markc]

My father had a Ranger 36 from about 76 - 81 with the same engines.....smoked big time then! Get new friends (wouldn't want to get rid of such a classic boat!)!

M

<hr width=100% size=1>http://www.geocities.com/jinto100/Jintopics.html

 

[omega2]

You do not say what colour smoke you are making, white smoke unburnt deisel, normal when cold and off load with these engines. Blue smoke burning oil, again on startup could be valve guides a bit worn, should clear as the engines warm up. Black smoke when running under load indicates overfueling or overloading, is the bottom clean? Before we start our 180's up we apologise to our neighbours, switch on the radar, single up the lines, and as soon as they hit off we are away. PM me if none of these suggestions ring a bell.

<hr width=100% size=1>J HAMER

 

[rich]

In the hand book it says, let go mooring lines, start engines and get out fast!!!!

<hr width=100% size=1>http://www.jersey-harbours.com

 

[PaulF]

IMHO and 18 years playing with Faireys the problem is due to a combination of things, including as Ben mentioned, low compression pistons, and an excess fuel device for cold start. One way to improve the situation is to load the engines IMMEDIATELY they start. My boat has Borg Warner boxes and I dont have the fancy arrangements that STOP you starting the engines in gear, When tied to a pontoon I deliberately do it, one engine ahead and one astern. This will cut the smoke by prob 50% but if you then take them out of gear the smoke level will rise. so you need to go quickly and not hang about. Another way of not being too antisocial is to release all your ropes and just start and go.

The Lancing Marine mod works well, it starts the engine on 3 cylinders only and the extra load reduces the smoke, the second bank of 3 come in once in gear and the throttle is opened. In winter you can warm the inlet manifold with either a hot air gun, or if you put your heating system (assuming a/ you have one and b/ it is in the engine compartment) A couple of hours before you start up. I have put my heating on the night before in winter. That means the boat is dry and cosy before you start and secondly the engine fires instantly with minimal smoke. Regrettably otherwise you are probably looking at new environmentally friendly motors.

Not a nice problem that one, sympathies.

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