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what? me worry?
 
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I have more failure pics... not for the faint of heart
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Old 03-21-2007, 01:36 PM
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Tim,

I suspect that the crank journal had been previously damaged (bearing failure?) and the repair didnít provide the proper radius at the edge of the journal. Or Ö was the internal problem from debris not cleaned out of the passages?

Best,
Grady
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Old 03-21-2007, 01:47 PM
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heres one of my jeep engine its a 134ci flathead from my 46 cj-2a. The upper two rings in every cylender were shatered in dozens of pieces and there was a crack in one of the cylenders from the bottom all the way up to the valve seat. Two of the pistons were like this. I drove it for 2 years like that just had to change the milky oil regularly.
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Old 03-21-2007, 02:34 PM
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Quote:
Originally posted by Dantilla
You win.
+1
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Old 03-21-2007, 04:09 PM
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Quote:
Originally posted by djmcmath
Wow. That's really sick. I'm aghast at the first story. I always thought nuclear power plants on submarines were reliably well-designed, but they don't hold a candle to a Porsche power plant in terms of raw drive-it-till-it-drops reliability. Wow.
Makes for a great tank engine.
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Old 03-21-2007, 04:11 PM
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aka 'vageen'
 
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Quote:
Originally posted by porsche930dude
heres one of my jeep engine its a 134ci flathead from my 46 cj-2a. The upper two rings in every cylender were shatered in dozens of pieces and there was a crack in one of the cylenders from the bottom all the way up to the valve seat. Two of the pistons were like this. I drove it for 2 years like that just had to change the milky oil regularly.
My 71 landcruiser failed the same way. It started to knock one day when I started it up after picking up some take out. When i disassembled the engine, evey cylinder had at least one broken ring but only one broke the land off of the piston like that.

I replaced all of the pistons etc and 2 rod bolts stretched 5000 miles later and I spun a bearing. I'm still waiting for a few parts to get it back together this time.
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Old 03-21-2007, 04:22 PM
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These were from a while back;

Customer had front cam belt break on Ferrari 308GTB. He drove it to the dealers for repair. Hmm, running on only four cylinders does reduce performance. A bit. Major engine repair required.

Customer drove "rough-running" Porsche 928 into workshop for repair.
Why was it running rough? One cylinder had hydra-locked, broke the rod which emerged through the block. New engine required.

Out on road test with early 930; oil was changed at a drive-in oil change place. They had removed the oil sump pan and mesh, but refitted it incorrectly which forced the oil pick-up pipe out of the pump. The pipe rattled around and eventually into the timing chain area. All sorts of damage, including bent valves. Major engine repair required.
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Old 03-21-2007, 05:22 PM
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How would you like to purchase a 930 engine and find this little surprize when you are putting it on the engine stand?



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Old 03-21-2007, 07:55 PM
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Actually, I think the bb's through the intake are an old carbon removal trick.
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Old 03-22-2007, 07:53 AM
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TargaFloria: The Maestro's stories were so enjoyable - I spent several hours reading them. And I was sad to learn he had passed awat - he really made me want to own a 356 again. Do you know how old he was when he passed?
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Old 03-22-2007, 11:12 AM
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I think the PO of the 77 Grady referenced was also the PO of my 77 911. Sheesh.
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Old 03-22-2007, 06:52 PM
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...any engine built by MotorShiester
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Old 03-22-2007, 06:57 PM
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Quote:
Originally posted by emcon5
I don't think it beats Grady's, but one of my favorites is the guy who's Miata engine ingested a few hunderd BBs.
now imagine that but the engine having injested a 2 inch long bolt!

i used to have an old isuzu with a hot 2 litre (bored, stroked, 13:comp etc etc etc) compete with twin webber down draughts

one of the bolts holding the webber trumpets/velocity stacks worked itself loose and got sucked into the intake at speed

when we got the head off the motor, to say we saw significant damage would be an understatement. The head was ruined, one piston was demolished and one bore had a gouge through to the water jacked its entire length
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Old 03-22-2007, 08:08 PM
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bump for a great thread, maybe someone has some new ones
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Old 06-16-2011, 01:42 PM
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Not porsche but good

When I was in the USAF I had a 1960 Dodge panel truck.....sort of like an old suburban with no windows. We were in North Central Indiana and had raced my Bultaco in some crummy little dirt track race.

We loaded everything up and headed home.......I was doing some crazy speed on a 2 lane back farm road when bang!! Rod let go. I had no money and no way to get a tow truck so we drove it back to the base with 7 remaining cylinders......about 40 miles. We drove straight to the auto hobby shop. Next day we pulled the motor.......that rod was amazing!!! really messed up that bore.

Had the machine shop sleeve that bore, got lots of mail order parts from JC Whitney and put it back together for a couple hundred bucks.

truck ran for years without a problem.
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Old 06-16-2011, 05:48 PM
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I had a customer who broke a rod in his 356 on the freeway.

The broken rod - after detaching itself from the piston - sawed the motor in half, literally. The only thing holding the case together was the crankshaft and timing cover. Not even the fan housing survived...

There was another time I took a motor apart and most of one cylinder was missing ... half of #5 cylinder and most of #5 piston were somewhere on the freeway; the head was holding the rest of the cylinder on the motor.

My favorite, though, was the time I saw a Mercedes diesel spit molten lava out the tail pipe in the middle of the night on the 101 freeway ... pieces of red-hot, liquid engine were coming out of the exhaust and hitting the front of my car!! There was a BIG hole in the hood, too.
Old 06-16-2011, 07:44 PM
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We tried rocket fuel in a 6 cyl Falcon once...(Hydrazine).
On the drag strip...went in the low 11's...once....fried the engine so bad it was welded together...would not turn even an inch!
But..it did go like hell for about 12 seconds...LOL.
Bob
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Old 06-16-2011, 11:12 PM
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Quote:
Originally Posted by HawgRyder View Post
We tried rocket fuel in a 6 cyl Falcon once...(Hydrazine).
On the drag strip...went in the low 11's...once....fried the engine so bad it was welded together...would not turn even an inch!
But..it did go like hell for about 12 seconds...LOL.
Bob
Low 11s??? Probably the fastest 6 cylinder Falcon ever!
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Old 06-16-2011, 11:16 PM
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I hope you had some big slicks on it for that one run.
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Old 06-17-2011, 10:03 AM
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A few I've collected








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Old 06-17-2011, 10:58 AM
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