Topic: Bearing problem (Read 2918 times)

hogasm · « **on:** May 04, 2006, 09:37:06 PM »

Well here is what happens when you put too much power on a stock set of crank bearings

hogasm · « **Reply #1 on:** May 04, 2006, 09:45:59 PM »

Sorry about that I will try again

hogasm · « **Reply #2 on:** May 04, 2006, 09:48:23 PM »

So after that happens your bike looks like this

hogasm · « **Reply #3 on:** May 04, 2006, 09:50:38 PM »

I guess you could say, pay me now "timkin bearings" or pay me later.

Twolanerider · « **Reply #4 on:** May 04, 2006, 09:58:50 PM »

At first glance I thought I was looking at a SEEG with a paint to match frame. Then the eyes actually focused and I wasn't jealous anymore.

Ironhorse · « **Reply #5 on:** May 05, 2006, 01:40:02 AM »

What's that from?

Too much HP/TQ, or lugging the engine?
How much HP/TQ are you putting out?
Are those the OEM crankcase bearings?

Thanks

hogasm · « **Reply #6 on:** May 05, 2006, 11:31:34 PM »

There are two bikes side by side. Mine is the closer to the camera. The other is a fat boy. Both bikes are in for a rebuild for one thing or another. Mine is, how do you say to be pollitically correct, a foo foo. It is covered by the dealership. The fat boy is in for a 124 kit.

hogasm · « **Reply #7 on:** May 05, 2006, 11:36:29 PM »

Ironhorse, Those are stock bearings and yes too much torque and horsepower are a contributing factor to this situation. Engine builder who is not the origional builder says any engine approaching 100 numbers should change bearings.

Puzzled · « **Reply #8 on:** May 06, 2006, 06:43:07 AM »

Has HD used the same crank bearings in all the Twin Cam model years? I remember hearing and reading about bearing changes along the way but I can't remember if they were crank case bearings or not.

grc · « **Reply #9 on:** May 06, 2006, 09:00:51 AM »

Quote

Has HD used the same crank bearings in all the Twin Cam model years? I remember hearing and reading about bearing changes along the way but I can't remember if they were crank case bearings or not.

Puzzled,

From '99 through '02, H-D used dual opposed tapered Timken bearings on the drive side of the crank. For the '03 and later engines, they changed to a single plain roller bearing (can we all say, "cheap"?), just like the one on the right side of the engine. Of course, the loads on the drive side of the crank are many times higher than the right side, which only drives the cams and oil pump. I'm sure you noticed the lower price for the finished product after all this cost cutting, right?

Jerry

grc · « **Reply #10 on:** May 06, 2006, 09:39:10 AM »

Puzzled,

I no longer have my '99 manual, so I had to "borrow" the attachment from the Zipper's web site to illustrate the difference in bearings. http://www.zippersperformance.com/catalogue/showproduct.asp?cat=850&prod=2065

Jerry

DCFIREMANN · « **Reply #11 on:** May 06, 2006, 09:48:29 AM »

Beautiful Jerry. You can see the difference in the two not to mention the labor and material costs saved by the MOCO during initial assembly. We have had a discussion about this in the past. It seems there are a few on this site that don't think the timken conversion needs to be done.

Be Safe

THE DAWG

Puzzled · « **Reply #12 on:** May 06, 2006, 01:39:30 PM »

Thank you. To visibly see them side by side shows the differences. As far as weather to change or not would depend on if your already in the case for some other reason. I wouldn't pull the cases apart JUST to change the bearings.

DCFIREMANN · « **Reply #13 on:** May 06, 2006, 02:32:43 PM »

Quote

Thank you. To visibly see them side by side shows the differences. As far as weather to change or not would depend on if your already in the case for some other reason. I wouldn't pull the cases apart JUST to change the bearings.

I would if I had done the mods to bring the TQ up over 110.

Be Safe

THE DAWG

Ravenworks · « **Reply #14 on:** May 16, 2006, 09:58:36 PM »

Quote

I guess you could say, pay me now "timkin bearings" or pay me later.

That would be "Timken".
The MoCo saved $7.00 per motor by switching the bearings.
A lot of products that Timken makes is being moved to India,which they are quickly realizing is a mistake,I know Catapillar is having some quaility problems with "Timken Bearings".
I watched them (Timken) scrap about 5 million bucks worth of tooling last month, because it cost too much to ship it overseas,get this,then they bought the scrap steel back and melted it down.

Ironhorse · « **Reply #15 on:** May 17, 2006, 01:30:19 AM »

So does this mean that my 2001 with the M&M FI actually has better crank bearings than the later bikes with the Delphi FI?

Ravenworks · « **Reply #16 on:** May 20, 2006, 07:42:45 PM »

Quote

So does this mean that my 2001 with the M&M FI actually has better crank bearings than the later bikes with the Delphi FI?

Yes, to say the least.

Grover · « **Reply #17 on:** May 20, 2006, 08:18:28 PM »

Hogasm I feel your pain. I've been there twice with the same motor. Go to page 8 of twin cam section. And check SE 103'' blown motor. My bike did it with just a stage 1 and exhaust @ around 4,200 miles. Then I built motor up 117hp/114tq and it happened again around 4,700 miles later. Both times where covered under warranty. The dealer put it on the chitty stock bearing both times. He replaced the crank this last time with a SE Pro crank at no extra charge & I went with the timken upgrade. Now it's a 113" @ 130hp/125tq so we'll see what happens next. I was reassured that w/ timken conversion & pro crank all will be good.

Is dealer covering it under warranty? I sure hope so!

Good Luck,

Grover

DCFIREMANN · « **Reply #18 on:** May 20, 2006, 10:00:13 PM »

Quote

That would be "Timken".
The MoCo saved $7.00 per motor by switching the bearings.
A lot of products that Timken makes is being moved to India,which they are quickly realizing is a mistake,I know Catapillar is having some quaility problems with "Timken Bearings".
I watched them (Timken) scrap about 5 million bucks worth of tooling last month, because it cost too much to ship it overseas,get this,then they bought the scrap steel back and melted it down.

They may save $7.00 on the bearings. There is a lot more labor in the assembly process with the timken bearing. It is a shame that the MOCO went in this direction.

Be Safe

THE DAWG

hogasm · « **Reply #19 on:** May 23, 2006, 08:12:49 PM »

Grover, yes the dealer is making good on the motor. To beat all the crank is also bent beyond tolerances, sooooooo new crank on order.

Author Topic: Bearing problem (Read 2918 times)

hogasm

hogasm

hogasm

hogasm

hogasm

hogasm

hogasm