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Post by codfather11 on Jan 24, 2011 21:23:19 GMT
Hi guys, i started the MCA, approved engine course for diesel engines today.
After the first day, very impressed so far! its a very in depth course and all will be squashed into 30 hours this week.
I had done the odd fuel filter change or engine oil change in the past but never had a real understanding of the diesel engine, and the way it all works.
But one day gone and already got an understanding of 2 stroke and 4 stroke systems etc.
Just wondering if anyone else had done this course or anything similar and what your feed back is?
Thanks, Aaron
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Post by sailorboyrob on Jan 25, 2011 13:17:24 GMT
Hi guys, i started the MCA, approved engine course for diesel engines today. After the first day, very impressed so far! its a very in depth course and all will be squashed into 30 hours this week. I had done the odd fuel filter change or engine oil change in the past but never had a real understanding of the diesel engine, and the way it all works. But one day gone and already got an understanding of 2 stroke and 4 stroke systems etc. Just wondering if anyone else had done this course or anything similar and what your feed back is? Thanks, Aaron Diesel engines are an awful lot more involved than every one first thinks arent they mate? Im a bit confused as to why you are studying 2 strokes though? You need a bloody big boat to fit one of them in. ;D |
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Post by sailorboyrob on Jan 25, 2011 13:29:38 GMT
Heres a few pics from an overhaul I was involved in last year. In no particular order. Open the crankcase for a quick looksee and check the alignment of the crank shaft. due to the size of the engine we can actually tell is there is any bearing damage by measuring how much the crankshaft flexes as we turn the engine.    removal of the intercoolers to the workshops for cleaning and pressure testing.  Removal of the turbo chargers for cleaning bearing changes and balancing.   Next we start to strip down the top of the engine. exhaust valve and cylinder head removal.   Jack the pistons out of the cylinder liners.  remove the fuel pumps and pipework.  Pull the cylinder liners out of the engine block for reconditioning.  And there you have it, a fully stripped top half of the engine.  |
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Post by codfather11 on Jan 30, 2011 22:52:43 GMT
bloody hell!! great pics mate. little bit bigger than the volvo penta/lister engines etc that i was working on haha.
i know what you mean with the 2 stroke, they just covered everything possible and i mean everything!
but after finishing the course on friday, i can highly recommend it! also i passed with 80% so very chuffed here and hopefully that means a promotion at work, ideal!!
cheers
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Post by monkeynuts on Feb 12, 2011 19:10:27 GMT
now thats a proper engine...........think i need a bigger spanner...lol
quality piccys too
like you say rob ,iv not seen many 2 stroke diesels apart from a few detroit's in some bigger stink pots. impressive bit of kit and a hell of a lot of power for size.
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Post by sailorboyrob on Feb 13, 2011 7:29:09 GMT
The big buggers used in ships actually have a lower power/weight ratio than a 4 stroke. But they can be built much bigger and are much more fuel efficient.
If you were to build a 4 stroke that would produce 70 or 80000 hp then the forces involved would be un-manageable and lubrication almost impossible. As a 2 stroke only runs at 90 or 100 rpm flat out then its easy enough to manage.
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