Lets Talk Crankwalk
- Thread starter TurfBurn
- Start date
Better safe than sorry which way? I believe doing the crankwalk option is dangerous.. I also have yet to see any justification or actual documentation of crankwalk happening to ANY car without it being related to high of a pressure plate for the clutch (and haven't heven heard of that either though... but I'd believe it).97Protegedx said:
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- 2003.5 Laser Blue MSP
TurfBurn said:
When I build my motor I want to build it once. So I want to make sure everything is covered. There arent alot of people pushing 350-400whp which is my goal, so I cant really say wat happens to the crank at that level. Can a second thrust bearing hurt the block or make it weaker?
I overrode the stock clutch's safety switch to allow the car to start in neutral with the clutch engaged and minimize load on the thrust bearing while the engine starts up, reasoning that with low oil pressure undue stress causes undue wear. Am I just being paranoid here or dilligent? And what about with an aftermarket clutch and pressure plate?TheMAN said:
wicked said:
That will be interesting to see what the condition of things are. People have to keep in mind that when you get to power levels that well exceed the intent of the motor that regularily replacing components such as bearings is not "a failure." I realize people don't WANT to do that, but it is often a reality... top fuel dragsters rebuild the motor every time it is run for 5 seconds... soo.....
TurfBurn said:That will be interesting to see what the condition of things are. People have to keep in mind that when you get to power levels that well exceed the intent of the motor that regularily replacing components such as bearings is not "a failure." I realize people don't WANT to do that, but it is often a reality... top fuel dragsters rebuild the motor every time it is run for 5 seconds... soo.....
no kidding tri-point has 30hr life on thier engines,and thats considered lengthy.
wicked said:
With you running a 30% plate and having 40,000 miles on the motor it will be interesting and provide good information to see what is going on with your motor.
I went through my first motor (that had stock rods that failed becuase Terry had pushed it too far prior to my owning it), and I inspected the bearings etc I didn't see any issue. The motor had about 28,000 miles on it and had been daily driven in excess of 10 psi the entire. Given that though, with the ACT clutch etc, there was absolutely NO wear of the thrust washers/bearings when I removed them.
There are also guys like Linux who have run 30% pressure plates and over 10 psi for incredible numbers of miles and not had the motor go down either.
So I apologize if any of my posts have sounded critical or so forth, I have alwas remained and adamant person that you only do what is "necessary" to ensure reliability and longevity of something. Simple engineering principles that you always want to accomplish your goal with the least amount of parts or modifications as that will always yield the most reliable result!
Either way, pictures, info, etc of any potential or existing crankwalk on your motor, Wicked, will provide a lot of learning and information to the whole community. Then the big answer will be sorting out why some blocks do it if that is really the case, and why so many don't!
Later,
Steve
officerfarva
Banned
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- Protege
bump?
justanothermp5
Banned
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- Rust Bucket
dam this is an old thread
but no, if your crank walked then u def would not have a motor that runs
theres a certain amount of movement the crank can move from side to side but its in the .00x" range if i remember right
but no, if your crank walked then u def would not have a motor that runs
theres a certain amount of movement the crank can move from side to side but its in the .00x" range if i remember right
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