Volvo piston

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JK
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Volvo piston

Postby JK » Wed Jul 30, 2014 9:04 am

Caused by bad injector

IMG_0480.jpg
Piston in liner-cracked and holed


IMG_0484.jpg
Cracked Piston -No surprise it shows seizure marks


IMG_0485.jpg
Piston on opposite side. Note hole through side


IMG_0487.jpg
Liner

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The Dieselduck
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Re: Volvo piston

Postby The Dieselduck » Wed Jul 30, 2014 5:36 pm

Yikes !
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JollyJack
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Re: Volvo piston

Postby JollyJack » Wed Jul 30, 2014 7:47 pm

The answer is, buy a Sulzer. For smaller, medium speed engines, get one which is designed to be run and maintained, a Detroit Diesel, up to EMD 645. Forget that over-engineered computerised crap and get a real engine.
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JK
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Re: Volvo piston

Postby JK » Thu Jul 31, 2014 4:19 am

First clue was a smoking engine.
I have to agree with you there JJ. The toughest smaller engine I have dealt with was Detroit Diesel 92 series 2 stroke. You couldn't kill them. We've taken them apart for maintenance and found bottom ends cracked, everything worn and the engines still kept going. Too bad they were so dirty.

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Re: Volvo piston

Postby mentatblur » Thu Jul 31, 2014 9:01 am

Could not agree more JollyJack. Even in my limited experience (compared to you guys) it was easy to adopt that attitude. The photos remind of a marine engine we had shipped to us. Hole blown through the crankcase doors, piston skirt seizure, crown melted into popcorn.. good times. Also caused by a leaky injector if memory serves me correctly.

I miss sailing :(

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JK
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Re: Volvo piston

Postby JK » Thu Jul 31, 2014 4:00 pm

Don't sell yourself short, we are just old.
I would be lost if I had to sail with the new technology on ships today.

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JollyJack
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Re: Volvo piston

Postby JollyJack » Fri Aug 01, 2014 11:56 am

That's why there are manualmatic over rides, electrickery WILL fail. :) Just a matter of time.
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Wyatt
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Re: Volvo piston

Postby Wyatt » Mon Aug 04, 2014 7:49 am

That looks expensive, ouch! What were you using this Volvo engine for? Lifeboat/workboat?

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JK
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Re: Volvo piston

Postby JK » Tue Aug 19, 2014 3:55 pm

Propulsion on a small patrol boat. Sorry for the late response, just saw this.

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JK
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Re: Volvo piston

Postby JK » Mon Sep 15, 2014 8:11 am

Apparently Volvo seems to be having some Q&A issues with pistons. If you are installing new ones, check them over carefully. They are coming out of the wrapping with damages.


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