Non-motoring > Next time your mechanic sucks his teeth Miscellaneous
Thread Author: Zero Replies: 3
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New Thu 5 Oct 17 10:29 
 Next time your mechanic sucks his teeth - Zero
And says "that going to be difficult, not sure......."

Point him to this


Crankshaft replacement on a cruise liner in port.

www.youtube.com/watch?v=2drej_qeRSA
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New Thu 5 Oct 17 16:10 
 Next time your mechanic sucks his teeth - Old Navy
I have seen the crankshaft of a submarine ASR 16 diesel engine replaced without cutting the hull. I was in a diesel boat when a big end bearing wiped and damaged the crankshaft. Gibraltar dockyard removed two pistons and con rods, test ran the engine, and we returned to Portsmouth on one engine with the damaged one as as an emergency use only backup. Portsmouth dockyard changed the crankshaft. Plan "B" was for me to fly back from Gib for my wedding if there had been a lengthy delay.
Last edited by: Old Navy on Thu 5 Oct 17 at 16:12
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New Thu 5 Oct 17 16:18 
 Next time your mechanic sucks his teeth - Old Navy
Missed the edit -

A V16 running as a V14 sounds really rough! :-)
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New Thu 5 Oct 17 16:40 
 Next time your mechanic sucks his teeth - Cliff Pope
Fascinating, many thanks for that.
I've sometimes wondered why car manuals always say replacing a crankshaft is an engine-out job, and it couldn't be done from underneath after hoisting the engine a few inches to clear obstructions.

It would be interesting to know how big an engine has to be before they conceed that lifing it out and turning upside down is impracticable.
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