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Crank Pulley Bolt
I was just wondering if it would be a bad idea to re tighten my crank pulley bolt with an impact?
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Re: Crank Pulley Bolt
if you do, use anti-seize.
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Re: Crank Pulley Bolt
How many lbf-ft of tq does your impact put out? The tq spec for the crankshaft pulley bolt is 180 lbf-ft.
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Re: Crank Pulley Bolt
im really not sure its an impact i use for work (construction)
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Re: Crank Pulley Bolt
Is the pulley wobbling or something?
If it's not broken, don't fix it. |
Re: Crank Pulley Bolt
Originally Posted by barrera
(Post 41116242)
im really not sure its an impact i use for work (construction)
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Re: Crank Pulley Bolt
If it's a normal 1/2 impact, you won't have any problem. You don't need to keep running it in as long as you can, but just hand thread the bolt so you don't cross the threads and then hit it with the impact. We do this all day at work.
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Re: Crank Pulley Bolt
Originally Posted by barrera
(Post 41103011)
I was just wondering if it would be a bad idea to re tighten my crank pulley bolt with an impact?
Just tightn' that baby up as tight as it will go. Then one day your daughter will be driving down the street and you get a call.... Dad ? The power steering doesn't work. What do I do? I get to where she had pulled off the side of the road into a parking lot and the crank pully was still rolling down the street. I recomend replacing the bolt everytime it is taken off and then put back on at 180/ft.lbs. Cost me $2,500.00 to replace everything when it came lose. Camshaft also had frozen and broke all the timing and balancer belts. Still looking for a new head. I don't want to buy one from ebay but, it beats pulling one and getting it rebuilt locally. It is a '94 single overhead camshaft F series and God only knows what the guy I bought it from had done to it before I bought it... Use no locktight either, use only the best antisieze from permatex.. Needless to say my two other accords got new bolts from Honda within the week..... |
Re: Crank Pulley Bolt
how much was the pulley bolt?
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Re: Crank Pulley Bolt
Originally Posted by whltng
(Post 41123841)
Just tightn' that baby up as tight as it will go. Then one day your daughter will be driving down the street and you get a call.... Dad ? The power steering doesn't work. What do I do?
I get to where she had pulled off the side of the road into a parking lot and the crank pully was still rolling down the street. I recomend replacing the bolt everytime it is taken off and then put back on at 180/ft.lbs. Cost me $2,500.00 to replace everything when it came lose. Camshaft also had frozen and broke all the timing and balancer belts. Still looking for a new head. I don't want to buy one from ebay but, it beats pulling one and getting it rebuilt locally. It is a '94 single overhead camshaft F series and God only knows what the guy I bought it from had done to it before I bought it... Use no locktight either, use only the best antisieze from permatex.. Needless to say my two other accords got new bolts from Honda within the week..... |
Re: Crank Pulley Bolt
Well wouldn't you still be running into the chance of turning the crank that way? I know it's an impact gun, but still. Some company makes a tool that allows you to hand crank (or remove) the bolt with ease. It's in the FAQ's sticky and is about $50 from what I remember. You would need that, a breaker bar, and a torque wrench to get it done. And with this method, the pulley will DEFINITELY not move. Look it up in the FAQ. It's cheaper than an air tool setup too haha
Oh and I'm not bashing or anything, but just because a certified technician does something one way, doesn't necessarily mean it's right. I've heard a LOT of bs come from the mouths of technicians... |
Re: Crank Pulley Bolt
Originally Posted by whltng
(Post 41123841)
Just tightn' that baby up as tight as it will go. Then one day your daughter will be driving down the street and you get a call.... Dad ? The power steering doesn't work. What do I do?
I get to where she had pulled off the side of the road into a parking lot and the crank pully was still rolling down the street. I recomend replacing the bolt everytime it is taken off and then put back on at 180/ft.lbs. Cost me $2,500.00 to replace everything when it came lose. Camshaft also had frozen and broke all the timing and balancer belts. Still looking for a new head. I don't want to buy one from ebay but, it beats pulling one and getting it rebuilt locally. 2500.00 should have gotten you a new engine and transmission with about 30,000 miles on the clock installed! |
Re: Crank Pulley Bolt
Originally Posted by djkurious
(Post 41149960)
2500.00 should have gotten you a new engine and transmission with about 30,000 miles on the clock installed!
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Re: Crank Pulley Bolt
Originally Posted by 92civlude
(Post 41147461)
The pulley bolt broke because it was too loose. Ive seen it more than once. Mostly by novices tightening by the bolt by hand. Its hard to accuratley torque the bolt down because the crankshaft turns while youre tightening it. This is from the mouths of Honda engineers. the best way to insure the bolt wont break is to tighten it with a quality 1/2 gun with adequate air pressure. Real Honda techs do it this way. Anyone that tightens a CS bolt by hand is asking for trouble.
In the service manual it shows how to properly torque the crankshaft pulley bolt by hand. You use a special tool to hold the pulley in place while you torque the bolt. Check out my timing belt write-up to see. You don't NEED air tools. |
Re: Crank Pulley Bolt
Originally Posted by 92civlude
(Post 41147461)
the best way to insure the bolt wont break is to tighten it with a quality 1/2 gun with adequate air pressure. Real Honda techs do it this way. Anyone that tightens a CS bolt by hand is asking for trouble.
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Re: Crank Pulley Bolt
That's 3 votes for the crank pulley bolt tool. Go to the site and click "add to cart."
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Re: Crank Pulley Bolt
1/2" impact is nice for removal though. I definitely agree on proper torquing when reinstalling.
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Re: Crank Pulley Bolt
I got my crank pulley holder from Skyway Tools; I think it was about $75 a few years ago.
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Re: Crank Pulley Bolt
Im not really gaining anything by argueing with you guys. Go ahead and tighten it by hand. You will get an inaccurate procedure because the motor flexes in its mounts. A small crack will develop in the bolt (it may take a few years) And then the bolt WILL break. Ive seen it happen. Mostly by novices who refrain from common sense and stick to published procedures and dont take into consideration the variables that happen in the real world. I am a Honda Platinum level master technician and an ASE master technician with 20 plus years on Hondas. I do it this way and all the techs in our shop do it this way, the techs at the dealership across town do it the same as well. You decide.
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Re: Crank Pulley Bolt
Originally Posted by 92civlude
(Post 41157963)
Im not really gaining anything by argueing with you guys. Go ahead and tighten it by hand. You will get an inaccurate procedure because the motor flexes in its mounts. A small crack will develop in the bolt (it may take a few years) And then the bolt WILL break. Ive seen it happen. Mostly by novices who refrain from common sense and stick to published procedures and dont take into consideration the variables that happen in the real world. I am a Honda Platinum level master technician and an ASE master technician with 20 plus years on Hondas. I do it this way and all the techs in our shop do it this way, the techs at the dealership across town do it the same as well. You decide.
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Re: Crank Pulley Bolt
Originally Posted by b18cKoupe
(Post 41158081)
so was honda just yanking everyones chain when they published the helm factory service manual?
92civlude - if you use the tool properly, you will not apply any torque to the engine mounts. The engine will stay still. And, I've never, ever, heard of a bolt cracking from being torqued to spec. |
Re: Crank Pulley Bolt
Originally Posted by 92civlude
(Post 41157963)
Im not really gaining anything by argueing with you guys. Go ahead and tighten it by hand. You will get an inaccurate procedure because the motor flexes in its mounts. A small crack will develop in the bolt (it may take a few years) And then the bolt WILL break. Ive seen it happen. Mostly by novices who refrain from common sense and stick to published procedures and dont take into consideration the variables that happen in the real world. I am a Honda Platinum level master technician and an ASE master technician with 20 plus years on Hondas. I do it this way and all the techs in our shop do it this way, the techs at the dealership across town do it the same as well. You decide.
To become a certified technician, don't you have to go through your own published procedures? So it kind of defeats the argument you had for the novices you mentioned. |
Re: Crank Pulley Bolt
so first you say you cant torque the crankshaft pulley bolt by hand because the crank will spin, now you say you cant because the engine will flex in it's mounts leading to improper torquing? and how would any of that cause the bolt to crack?
sorry, but.... :BS: just my opinion though :shrug: I guess what I'm saying is that if you prefer using an impact to remove and install that bolt, thats fine. But don't spew crap like the above because if Honda engineers didn't feel it would work properly then they wouldn't have designed the pulley to be used with the special tool nor would they have designed the special tool. |
Re: Crank Pulley Bolt
go to kragens. they have the 50mm crank pulley tool for $22. i just bought mines yesterday and broke the crank bolts in like 3 mins after spraying the bolt with liquid wrench the day before. no need for impacts.
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Re: Crank Pulley Bolt
How in the world is anyone going to OVERtorque a 16mm fine thread bolt? Really? Even with professional airtools. That's nuts. You're in far, far more danger of not tightening it enough if you use a torque wrench and the Honda special tool.
And, the Honda special tool is VERY useful for breaking the bolts loose. Very often, there isn't an impact in the whole shop that's strong enough to break the bolts loose, so the special tool on a cheater bar and a nice, big fat breaker is what you need to get it off. I wonder why? Geez, I don't know, perhaps the motions and the heat the bolt is exposed to ends up putting it under so much more stress than an impact could ever put on it, it tightens up further. Get over it. Hit it with your impact. Job done. |
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