A freind of mine is out working in Western Australia, sent me across these pictures of a 793 that had thrown a leg out of bed (connecting rod failure through the side if the cylinder block), due to a dropped valve.
Engine removed and swapped with spare unit.
SB
793 engine failure
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Ross
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Re: 793 engine failure
Nice pics mate. Thanks for posting them. 
Real eye~opener when you see in~door work and overhead cranes etc.
The truck looks brand spanking new and very clean?? How many hours on it?
Did the faliure blow the oil gallerys off the block? Should be 4 oil filters were the holes are
Ross
Real eye~opener when you see in~door work and overhead cranes etc.
The truck looks brand spanking new and very clean?? How many hours on it?
Did the faliure blow the oil gallerys off the block? Should be 4 oil filters were the holes are
Ross
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Nick Drew
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Re: 793 engine failure
Yes !! I echo Holgers comment!!
Many of us who are only involved in small to medium size machines would never get the chance to see such things
We have some great big kit members here now !!
Keep up the good work!!
Nick
Many of us who are only involved in small to medium size machines would never get the chance to see such things
We have some great big kit members here now !!
Keep up the good work!!
Nick
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Re: 793 engine failure
Very nice pictures!
We use to call that "valve sallad".
I have had that experience. I used to practice some racing in the late eighties with an Alfa Romeo GTV. I made a bad gear change resulting in a broken valve at 8000+ rpm. The valve head got "crushed" between the rod small end (through the piston top) and the cylinder head resulting in a hole in to the water jacket in the cylinder head. This was cylinder #4 and there where aluminium debris in all the other cylinders. The debris must have blown out through the carb and to the other cylinders through the air filter box. What a mess!
We use to call that "valve sallad".
I have had that experience. I used to practice some racing in the late eighties with an Alfa Romeo GTV. I made a bad gear change resulting in a broken valve at 8000+ rpm. The valve head got "crushed" between the rod small end (through the piston top) and the cylinder head resulting in a hole in to the water jacket in the cylinder head. This was cylinder #4 and there where aluminium debris in all the other cylinders. The debris must have blown out through the carb and to the other cylinders through the air filter box. What a mess!
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Volvo EC35 -01
MB-Trac 800 turbo
Bigab 10-14 hook lift trailer
MF 3165, Poor Ferguson
Youtube: http://www.youtube.com/user/RobbanxC
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SRB
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Re: 793 engine failure
Truck hadnt clocked up 200 hours when she went bang.
The oil filter base was knocked off during the failure, if you look at the fuel filters you can see they have been knocked out as well, must have been a big bang!
The oil filter base was knocked off during the failure, if you look at the fuel filters you can see they have been knocked out as well, must have been a big bang!
He who hingeth aboot, getteth hee-haw
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martyn williams
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Re: 793 engine failure
I was running up a V16 RUSTON PAXMAN 3200 hp engine once,walked through the engine room and heard a very loud bang behind me.The engine come to a sudden stop.Walked back through the engine room and saw that a con rod had punched out the cranckase door.the conrod was bent and sticking out in the walkway.I would have been seriously injured it that happened as I walked past.We have also had turbos explode.Most engines were fitted with 3/4 inch plate around the turbos and we were banned from the engine room when the Mirrlees Blackstone engines were on full load.
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