Andy Blew a Rod - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-18-2003, 08:08 PM   #1
Sol
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Default Andy Blew a Rod

Andy, a new user here with the '91 Olds 98, blew a rod in the engine after 197K. It'* strange hearing this on a 3800.

It really sucks for him, he is probably just going to get a new engine.

Has this ever happened before to any of you?
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Old 11-18-2003, 08:56 PM   #2
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Default Re: Andy Blew a Rod

Quote:
Originally Posted by Sol
Andy, a new user here with the '91 Olds 98, blew a rod in the engine after 197K. It'* strange hearing this on a 3800.

It really sucks for him, he is probably just going to get a new engine.

Has this ever happened before to any of you?
See it happen a couple of times. This happens if you IGNORE the Low Oil Pressure Alarm & continue driving the engine hard. First the bearing goes, then the rod blows apart from the crank when the bearing finally seizes up unto the crankshaft journal. It MUST have been "Knocking" beforehand, but owner might have chosen to ignore it or didn't recognize it knocking. Most usually catch it before this happens. The usual fix was a new rebuilt crank kit & new/used conn. rod.
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Old 11-18-2003, 08:59 PM   #3
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That'* what happened. This car was making a terrible knock. He told me to look at it, but I don't have any mechanical experience. I knew something was very wrong, so I told him to get it looked at. And sure enough, the rod went.

BTW, this car had many problems before. I think the past owner didn't take care of it very well, and when it was bought 3 months ago, it wasn't given a proper tune up and check up.
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Old 11-18-2003, 09:02 PM   #4
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Quote:
Originally Posted by Sol
That'* what happened. This car was making a terrible knock. He told me to look at it, but I don't have any mechanical experience. I knew something was very wrong, so I told him to get it looked at. And sure enough, the rod went.

BTW, this car had many problems before. I think the past owner didn't take care of it very well, and when it was bought 3 months ago, it wasn't given a proper tune up and check up.
Why did he even buy a car with an engine knock in the first place?
That alone should have set off ALARM BELLS!
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Old 11-18-2003, 09:11 PM   #5
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Yea I know...


Supposedly, it was fine when it was bought. It wasn't properly inspected.
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Old 11-18-2003, 09:46 PM   #6
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i broke a rod in a pulling truck i built for my uncle back in 91. the tell tale tach read 7600 rpms when he let go.
it broke the cam, distributor, wedged a lifter sideways in the cam passage. took out 3 other rods and 5 pistons skirts. it drove the cam back and thats what took out the distributor and took it right into the flywheel. i was amazed with all the damage it caused. the only thing left to the motor that was goos was the heads and intake. everything else was junk
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