Crank Problems
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Tourer
Joined: Aug 2008
Posts: 442
Likes: 0
Crank Problems
Sent my crank off to Darkhorse Crankworks twice. Still same vibration problems.
I'm guessing it was because of the installation of the new piston rods. Much heavier It looks like. I'm thinking this is where the vibration is coming from. I don't see any way they could of counter balanced the extra weight.
Does anyone know of anybody that does excellent work on cranks ? I'm thinking I need to install another complete balanced crank system. Any suggestions ?
I'm guessing it was because of the installation of the new piston rods. Much heavier It looks like. I'm thinking this is where the vibration is coming from. I don't see any way they could of counter balanced the extra weight.
Does anyone know of anybody that does excellent work on cranks ? I'm thinking I need to install another complete balanced crank system. Any suggestions ?
Outstanding HDF Member
Joined: May 2008
Posts: 2,543
Likes: 19
From: Ashland Ohio
Balancing that was pretty easy if you paid to have it done.
I had a vibration problem that turned out to be the clutch hub bearing.
My crank from Hyperformance
You will NEVER enjoy your bike. You might as well sell it and buy a Victory.
You think folks are STUPID, Like HOBAN's. I can not believe you are on here again claiming Hoban's is too dumb to know how to balance a rotating assembly, when in fact, it is YOU who lacks any and all knowledge on the subject. TWICE should tell you that it is NOT the crank, wouldn't you think?
I had a vibration problem that turned out to be the clutch hub bearing.
My crank from Hyperformance
You will NEVER enjoy your bike. You might as well sell it and buy a Victory.
You think folks are STUPID, Like HOBAN's. I can not believe you are on here again claiming Hoban's is too dumb to know how to balance a rotating assembly, when in fact, it is YOU who lacks any and all knowledge on the subject. TWICE should tell you that it is NOT the crank, wouldn't you think?
Last edited by wurk_truk; Oct 4, 2010 at 08:28 PM.
Thread Starter
|
Tourer
Joined: Aug 2008
Posts: 442
Likes: 0
Balancing that was pretty easy if you paid to have it done.
I had a vibration problem that turned out to be the clutch hub bearing.
My crank from Hyperformance
You will NEVER enjoy your bike. You might as well sell it and buy a Victory.
You think folks are STUPID, Like HOBAN's. I can not believe you are on here again claiming Hoban's is too dumb to know how to balance a rotating assembly, when in fact, it is YOU who lacks any and all knowledge on the subject. TWICE should tell you that it is NOT the crank, wouldn't you think?
I had a vibration problem that turned out to be the clutch hub bearing.
My crank from Hyperformance
You will NEVER enjoy your bike. You might as well sell it and buy a Victory.
You think folks are STUPID, Like HOBAN's. I can not believe you are on here again claiming Hoban's is too dumb to know how to balance a rotating assembly, when in fact, it is YOU who lacks any and all knowledge on the subject. TWICE should tell you that it is NOT the crank, wouldn't you think?
Had a team of professional mechanics go completely through the engine, mounting , everything. It has new clutch hub bearings. It has new everything.
1. FACT The vibration wasn't there before the crank job, it's there after.
2. The only two things that changed was the crank piston rods and SE comp
3. EVERYTHING else has been replaced and documented .
1A Fact - The crank was balanced wrong the first time.
2A Fact - After it came back twice, the vibration was still there
3A Fact - A team of professional mechanics said it was the crank
Now even wurk_turk can get this equation figured out.....Can't he ? Or does he have his head so far up Hoban's a s s till he can't get it out !
Cruiser
Joined: Apr 2007
Posts: 225
Likes: 1
From: Boston area
Do you have proof that the crank was balanced improperly, the first time? And then it is still not right? I doubt it is the crank. Just for the hell of it, take the SE comp. out and reinstall the stock one. See if that helps.
Last edited by rob71458; Oct 5, 2010 at 08:42 AM.
Ultimate HDF Member
Joined: Feb 2007
Posts: 7,663
Likes: 7
From: Northeast Ohio
Hoban's (Darkhorse) does excellent work. You will find many of the top builders throughout the country using them to prepare cranks not only for street, but for race use also.
Hoban's did my crank for 120" build, it came back with > .001 runout and when checked 40k miles later, was still the same.
Anything is possible, but after two attempts, I would think that the problem is elsewhere. Yes, they use stronger rods, but balancing is done based on the entire rotating assembly weight.
Hoban's did my crank for 120" build, it came back with > .001 runout and when checked 40k miles later, was still the same.
Anything is possible, but after two attempts, I would think that the problem is elsewhere. Yes, they use stronger rods, but balancing is done based on the entire rotating assembly weight.
Outstanding HDF Member
Joined: Oct 2007
Posts: 2,018
Likes: 6
From: Edmond, Ok
Had a team of professional mechanics go completely through the engine, mounting , everything. It has new clutch hub bearings. It has new everything.
1. FACT The vibration wasn't there before the crank job, it's there after.
2. The only two things that changed was the crank piston rods and SE comp
3. EVERYTHING else has been replaced and documented .
1A Fact - The crank was balanced wrong the first time.
2A Fact - After it came back twice, the vibration was still there
3A Fact - A team of professional mechanics said it was the crank
Now even wurk_turk can get this equation figured out.....Can't he ? Or does he have his head so far up Hoban's a s s till he can't get it out !
1. FACT The vibration wasn't there before the crank job, it's there after.
2. The only two things that changed was the crank piston rods and SE comp
3. EVERYTHING else has been replaced and documented .
1A Fact - The crank was balanced wrong the first time.
2A Fact - After it came back twice, the vibration was still there
3A Fact - A team of professional mechanics said it was the crank
Now even wurk_turk can get this equation figured out.....Can't he ? Or does he have his head so far up Hoban's a s s till he can't get it out !
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Outstanding HDF Member
Joined: May 2008
Posts: 2,543
Likes: 19
From: Ashland Ohio
My head's not up Hoban's sass. My boot is up yours for NOT looking at what would be the root cause of the vibration. FYI... my personal crank was fitted by R&R and not Hoban's.
John coulda screwed up a crank... no doubt, but NOT two... look for what is REALLY causing the vibration. Plus, you are NOT mechanically inclined and should really leave things to those that are instead of AGAIN... trying to harm a top supplier's reputation. You are a DICK!!!
John coulda screwed up a crank... no doubt, but NOT two... look for what is REALLY causing the vibration. Plus, you are NOT mechanically inclined and should really leave things to those that are instead of AGAIN... trying to harm a top supplier's reputation. You are a DICK!!!
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Road Warrior
Joined: Nov 2007
Posts: 1,984
Likes: 7
I think Dalton is right.
Some where along the line a person doing this stuff must be able to, at least be able, to be able to do this himself. Or able to totally understand this if someone else does it, cause maybe not having the exact tool available.
Motorcycles are too personal and have so many varitables to be able to say, "this for sure", or, "that for sure". Untill you put your fingers on it.
Specially if someone else is telling you.
And the rods are heavier cause from a preformance stand poing HD rods, though pretty good, have a little end that I think could be better designed. So I would change them to probably what you have, if doing all this.
Look at Work Truk's crank and rods.
Personally I would take the crank off the list from what I have seen here. Time to move on.
Some where along the line a person doing this stuff must be able to, at least be able, to be able to do this himself. Or able to totally understand this if someone else does it, cause maybe not having the exact tool available.
Motorcycles are too personal and have so many varitables to be able to say, "this for sure", or, "that for sure". Untill you put your fingers on it.
Specially if someone else is telling you.
And the rods are heavier cause from a preformance stand poing HD rods, though pretty good, have a little end that I think could be better designed. So I would change them to probably what you have, if doing all this.
Look at Work Truk's crank and rods.
Personally I would take the crank off the list from what I have seen here. Time to move on.
Last edited by Old Gunny; Oct 5, 2010 at 09:29 AM.
Road Master
Joined: Jun 2008
Posts: 868
Likes: 1
From: Trenton,N.J.
Sent my crank off to Darkhorse Crankworks twice. Still same vibration problems.
I'm guessing it was because of the installation of the new piston rods. Much heavier It looks like. I'm thinking this is where the vibration is coming from. I don't see any way they could of counter balanced the extra weight.
Does anyone know of anybody that does excellent work on cranks ? I'm thinking I need to install another complete balanced crank system. Any suggestions ?
I'm guessing it was because of the installation of the new piston rods. Much heavier It looks like. I'm thinking this is where the vibration is coming from. I don't see any way they could of counter balanced the extra weight.
Does anyone know of anybody that does excellent work on cranks ? I'm thinking I need to install another complete balanced crank system. Any suggestions ?