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Old 14 March 2012, 20:41   #1
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caterpillar marine diesel problems

I have heard the RNLI are pulling out all the caterpillar marine diesel engines in their fleet due to problems and are replacing them with myMtu engines ! Anyone know if this is true and if so what the problems are ? And yes one of our boats have a Cat C7 engine :/
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Old 14 March 2012, 22:16   #2
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From what I know they have tried MTU's in Seven Class and they worked very well. The new Shannon class is having Scannia engines but the Tamar is still running Cat's. I know Cat have been way over priced on parts and the RNLI dont have the money as they used to so they have to cut back.
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Old 14 March 2012, 22:28   #3
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CATs are noisey, thirsty and bulletproof. Finning servicing is eyewatering, that also maybe a factor.
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Old 14 March 2012, 22:45   #4
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Yes, our local lifeboat is a severn & the Engineer was saying that the V12 Cats are to be replaced with V10 MTUs (German) He said the new engines are shorter, lighter & more powerfull
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Old 14 March 2012, 23:08   #5
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CATS

Are overpriced, overrated, thirsty and parts are even more kidney-taking than my Volvo's - parts of them are made from cheap chocolate, that melt under any kind of pressure - would only touch one with someone else's money.
The cheeky bastards will only stick to their pretend warranty if you send them a sample of the oil when you change it -- and they charge you £100 odd quid for the pleasure....

Hold on is that similar to Cummins ?? -- i think it is.........

May they both sink on the same boat...

Pete
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Old 15 March 2012, 06:05   #6
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Quote:
Originally Posted by Robbie Diesel View Post
Yes, our local lifeboat is a severn & the Engineer was saying that the V12 Cats are to be replaced with V10 MTUs (German) He said the new engines are shorter, lighter & more powerfull
U've never really equated lightness and extra power with reliability and long life, hey but call me old fashioned.
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Old 15 March 2012, 07:28   #7
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U've never really equated lightness and extra power with reliability and long life, hey but call me old fashioned.
+1

(as I fire up my Cummins 6BT)
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Old 15 March 2012, 08:30   #8
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so are the Cats being replaced because of serious issues as ive heard or have they come to the end of their "shelf life" or contract and and now being replaced
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Old 23 March 2012, 17:07   #9
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I can't find any info on problems with the RNLI Cat engines ! Anyone else know anything
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Old 30 March 2012, 08:45   #10
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Severn & Trent CAT engines were uprated to 115/120% nominal output, and were fairly well abused on service calls (i.e. 0-flat sticks with limited warmup).

New engines are bigger, more powerful, but downrated at 80% nominal - so should make a big difference to life.
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Old 30 March 2012, 12:07   #11
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As it happens mate of mine works for Finnings, we were discussing this a few months back last time i was in the pub, he said problem with cats as well as pricey there getting a bit long in the tooth now compared to MTU ,MAN with regards to weight ,power weight and fuel economy ,
one of the reasons that the RNLI,s Medina class jet powered RIB back in the early 1980,s was shelved as the cat engines were a bit too heavy and costly for the size of boat ,

from memory think our old cat powered Arun class boat did around 44 gallons per hour on full noise.
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