Perkins Motor bent pushrods soon after turbo overheated

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Merlyn
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Re: Perkins Motor bent pushrods soon after turbo overheated

Postby Merlyn » Mon Jun 15, 2015 3:59 am

Well still no reply ref the pushrods sadly, herewith is the unusual and not very often happening reason for bent rods, not common but it does happen sometimes. All looks ok with marks all lined up but the camshaft is sitting in an incorrect position several teeth out. Key shears, turns and jams, result? Bent valves.
Remembering The Good Old days, when Chiefs stood watches and all Torque settings were F.T.

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Merlyn
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Re: Perkins Motor bent pushrods soon after turbo overheated

Postby Merlyn » Wed Jul 01, 2015 4:12 am

Well it's coming up eighteen months now re the bent pushrods and here we are left hanging and unable to conclude the mysterious bent rods and as such will forever wonder as to the cause. I always think that you have to conclude all matters even if you sometimes draw the wrong conclusion, at least it puts the subject to bed and then move on to the next problem/ challenge. As such, therefore it is my considered opinion that all things being taken into consideration that perhaps Mr Nobody again, some " have a go Joe with a toolbox had a go " at adjusting the tappets , cocked it up, cranked it over and at least bent the rods " if not valves as well " and apon seeing the damage caused abandoned the job and said nothing. The Chief or the person in charge seeing that he had a crew of incapable tappet / lash? Adjusters on board subsequently fitted a set of hydraulic tappet adjusters and as such they all lived happily ever after ( the valves that is ) ( a quote from Hans Christian Anderson ) What do you think?
Remembering The Good Old days, when Chiefs stood watches and all Torque settings were F.T.

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Big Pete
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Re: Perkins Motor bent pushrods soon after turbo overheated

Postby Big Pete » Wed Jul 01, 2015 10:40 pm

I can remember a Filipino Third ( with a Second's Ticket) who set the tappets on a generator, he tried to do it with the crankshaft in one place. Fortunately I barred it over before trying to start it, heard the rocker arm shear off, and stopped. Opened the covers and half the adjusters were screwed fully down and half of them fully up! I sailed with him for 6 months after that, never did find anything down the Engine Room that he was capable of doing right.

Going back to the original thread, I think the engine was driving a pump at a construction site and only inspected intermittently, a case of it was running at one inspection, dead the next time, certainly no mention of maintenance being done between the time it was running and when it was dead.

BP.
It is always better to ask a stupid question than to do a stupid thing.

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Merlyn
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Re: Perkins Motor bent pushrods soon after turbo overheated

Postby Merlyn » Thu Jul 02, 2015 1:44 am

Unbelievable or what? Still can't believe some people I meet have such a skill level even today. And with a ticket! Maybe your Bodger swallowed the hook, went shoreside and ended up doing the tappets on this Perkins? Small world sometimes.
Remembering The Good Old days, when Chiefs stood watches and all Torque settings were F.T.

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Big Pete
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Re: Perkins Motor bent pushrods soon after turbo overheated

Postby Big Pete » Thu Jul 02, 2015 12:33 pm

No I think my Flip Flop friend is Chief Engineer on an inter Island Ferry back home now.

BP
It is always better to ask a stupid question than to do a stupid thing.

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Merlyn
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Re: Perkins Motor bent pushrods soon after turbo overheated

Postby Merlyn » Fri Jul 03, 2015 4:09 am

Probably a paddle powered canoe then
Remembering The Good Old days, when Chiefs stood watches and all Torque settings were F.T.

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Merlyn
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Re: Perkins Motor bent pushrods soon after turbo overheated

Postby Merlyn » Fri Aug 07, 2015 5:15 am

Well I reckon so much time has now gone by ref the bent pushrods without us all knowing the reason why that the conversion to hydraulic tappets was done so long ago that now possibly they are rattling owing to the oil feed holes becoming blocked, ( as some do ) thereby requiring a partial strip down and the old drill worked up the oil drilling feed holes to enable them to stop rattling.
Remembering The Good Old days, when Chiefs stood watches and all Torque settings were F.T.


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