Cummins QSC 8.3L

Sticky Fingers

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Hi folks

I'm considering an early noughties boat that is fitted with this model engine with less 1000 hours recorded, I've not seen the boat yet and only have preliminary info. Broker tells me that regular servicing has been done but will need to see the evidence of course, and if I decide to proceed on it I'll get an engine tech survey done.

Cummins seem very well respected on this forum; any views good or bad on this engine? Known weak spots that I should ask about?

Also, can you recommend Cummins service agents on Central S Coast / Hamble / Solent area (ideally Chichester to Poole)?
 
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For Cummins info the only place to go is sbmar.com forums.. Tony, although very blunt with his responses is very free with info and will help you to determine if the engine is likely to be good. If set up right they will outlast most engines.. but he finds they are generally not maintained, overpropped massively and working well past thir limits. He normally wants serial numbers and good photos of everything just so you know.. and fuel burn figures if available as that's key with the qsl I believe.

I went Cummins (older 6bta) overr anything else because as long as they are set up right they can last a very very long time..

Steve
 
We had one in our Lochin for approx 10 years (sold boat, still running great). 500HP. Great engine for us and the torque at the higher end was unreal. Just seemed to effortlessly push the boat along regardless of the load we were carrying.
 
For Cummins info the only place to go is sbmar.com forums.. Tony, although very blunt with his responses is very free with info and will help you to determine if the engine is likely to be good. If set up right they will outlast most engines.. but he finds they are generally not maintained, overpropped massively and working well past thir limits. He normally wants serial numbers and good photos of everything just so you know.. and fuel burn figures if available as that's key with the qsl I believe.

I went Cummins (older 6bta) overr anything else because as long as they are set up right they can last a very very long time..

Steve

Hi Steve

Just registered on that forum, it's a goldmine of fantastic info, what a resource, thank you for the tip.
 
For Cummins info the only place to go is sbmar.com forums.. Tony, although very blunt with his responses is very free with info and will help you to determine if the engine is likely to be good. If set up right they will outlast most engines.. but he finds they are generally not maintained, overpropped massively and working well past thir limits. He normally wants serial numbers and good photos of everything just so you know.. and fuel burn figures if available as that's key with the qsl I believe.

I went Cummins (older 6bta) overr anything else because as long as they are set up right they can last a very very long time..

Steve

Ironically we'd ordered the 6CTA 450HP engine, but they somehow managed to sell that to someone else. The end result for us was the QSC at the same price point, although to be honest we still would've preferred the CTA for the simplicity of the installation if nothing else :)
 
For Cummins info the only place to go is sbmar.com forums.. Tony, although very blunt with his responses is very free with info and will help you to determine if the engine is likely to be good. If set up right they will outlast most engines.. but he finds they are generally not maintained, overpropped massively and working well past thir limits. He normally wants serial numbers and good photos of everything just so you know.. and fuel burn figures if available as that's key with the qsl I believe.

I went Cummins (older 6bta) overr anything else because as long as they are set up right they can last a very very long time..

Steve

Agree with this, great info.
 
Hi Graham

Forum can be a bit quirky sometimes... You can't find where to or you just can't? Assume it asked you to confirm your registration? If not maybe drop an email to someone about it.. I know I have a few issues sometimes... Cummins engines are Tony's thing.. not forums �� he only started it because boatdiesel who he was a massive contributer on, was charging more and more and he was of the opinion it should be free to all.

Steve
 
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