Need help diagnosing locked up crank!! Urgent!
03-08-2012, 01:39 PM
#18
Rennlist Member
Thread Starter
03-08-2012, 01:55 PM
#20
Rennlist Member
Thread Starter
03-08-2012, 01:57 PM
#21
Three Wheelin'
Bingo!! Sad but true.
Yes, sorry, that information was left out. The coolant was vacuumed out of the cylinders and then blow dried, and all the cylinder walls looked pretty normal. There were a few very light scores but nothing that looked extraordinarily dangerous.
Also, as I mentioned above, the first several cranks felt and sounded as smooth as they normally would. And there was no strange noise when the engine stopped, it didn't come to a screeching halt or anything, haha. It just stopped!
Yes, sorry, that information was left out. The coolant was vacuumed out of the cylinders and then blow dried, and all the cylinder walls looked pretty normal. There were a few very light scores but nothing that looked extraordinarily dangerous.
Also, as I mentioned above, the first several cranks felt and sounded as smooth as they normally would. And there was no strange noise when the engine stopped, it didn't come to a screeching halt or anything, haha. It just stopped!
03-08-2012, 02:40 PM
#22
Race Car
Pull the plugs and see if the pistons are in the appropriate height with each other. I'm thinking it's probably a broken rod that got bent and fractured with the hg problem. These rods can only take do much and then they will give at any moment.....I know....
03-08-2012, 04:14 PM
#24
Rennlist Member
Thread Starter
The crank stopped before it got to TDC. On the cam gear, the TDC mark was about 2 inches to the left (IIRC). So with the borescope, all the pistons are roughly half way, none of them are all the way up or down from what it looks like.
I'm getting ready to move out of state in a couple months here, so I'll probably have to wait until then before digging into another deep project. But once I figure out the issue for certain, I will make sure to reply back to this thread... So make sure to subscribe to this thread if you'd like to eventually find out what happened!
I'm getting ready to move out of state in a couple months here, so I'll probably have to wait until then before digging into another deep project. But once I figure out the issue for certain, I will make sure to reply back to this thread... So make sure to subscribe to this thread if you'd like to eventually find out what happened!
03-08-2012, 04:56 PM
#25
Rennlist Member
The crank stopped before it got to TDC. On the cam gear, the TDC mark was about 2 inches to the left (IIRC). So with the borescope, all the pistons are roughly half way, none of them are all the way up or down from what it looks like.
I'm getting ready to move out of state in a couple months here, so I'll probably have to wait until then before digging into another deep project. But once I figure out the issue for certain, I will make sure to reply back to this thread... So make sure to subscribe to this thread if you'd like to eventually find out what happened!
I'm getting ready to move out of state in a couple months here, so I'll probably have to wait until then before digging into another deep project. But once I figure out the issue for certain, I will make sure to reply back to this thread... So make sure to subscribe to this thread if you'd like to eventually find out what happened!
04-04-2012, 05:20 PM
#27
Got Nothin'
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Rennlist Member
The crank stopped before it got to TDC. On the cam gear, the TDC mark was about 2 inches to the left (IIRC). So with the borescope, all the pistons are roughly half way, none of them are all the way up or down from what it looks like.
I'm getting ready to move out of state in a couple months here, so I'll probably have to wait until then before digging into another deep project. But once I figure out the issue for certain, I will make sure to reply back to this thread... So make sure to subscribe to this thread if you'd like to eventually find out what happened!
I'm getting ready to move out of state in a couple months here, so I'll probably have to wait until then before digging into another deep project. But once I figure out the issue for certain, I will make sure to reply back to this thread... So make sure to subscribe to this thread if you'd like to eventually find out what happened!
When I finally disassembled the motor, the number two rod bearing was paper thin.
