Author Topic: Softail blows out cam bearing - Pictures - Update on Runout  (Read 2356 times)

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Offline hotroadking

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Softail blows out cam bearing - Pictures - Update on Runout
« on: Tuesday, October 26, 2010. 07:47:57 AM. »
I know you guys like pictures....

Buddys 01 Heritage 108K miles
95 inch, flat tops, carls 510 gear drive cams.
Delkron cam plate.

Said the bike started making a noise
had him open the cam cover
Found front cam bearing gone,
he said the brass journal in the plate is toast (mainshaft area)
perhaps from debris, I have pictures but haven't seen it up close
and personal.

See what you think, figure he needs to check mainshaft runout
need to get a good look to see how scored that shaft is, he's going to need
new cams (bigger, when the little cams go, get a bigger cam right, that's the rule)
lifters, oil pump, cam plate.  Heads are going to be cleaned up and fresh valves and guides, springs..  Cyl honed and cleaned and new HD 10.5 pistons..

See what you think he should do about the mainshaft...  besides check runout, is it salvagable or should he find a suitable 103B replacement flywheel...







« Last Edit: Wednesday, October 27, 2010. 03:35:45 PM. by hotroadking »

Offline Max Headflow

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Re: Softail blows out cam bearing - Pictures
« Reply #1 on: Tuesday, October 26, 2010. 08:25:08 AM. »
Hit the crank with a file, Smaller bushing and you are good to go..  :wink:  Max
Aka Mousinator, Another Wasted Minute With Max,
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Offline 02FYRFTR

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Re: Softail blows out cam bearing - Pictures
« Reply #2 on: Tuesday, October 26, 2010. 09:36:09 AM. »
Check the pinion shaft bushing diameter for runout, make a plug from a suitable diameter dowel for the oil hole in the pinion shaft diameter and polish the pinion shaft diameter wit 400 wet paper, check diameter of pinion shaft for out of round and taper then recheck for TIR.  If the pinion shaft TIR is over .003", should consider repalceing the flywheel assembly with a trued, plugged and welded assembly if staying with gear driven cams.  Have four sets of 4.000" "B" assemblies trued, plugged and welded looking for new homes.

Replace the cam plate pinion shaft bushing and have it sized to provide .0006"~.0008" clearance to the pinionshaft cam plate bushing diameter of the flyhwheel assembly.  Make sure your machinist locates the center of the new bushing before taking a cut.  Finish the bushing ID to clearance size with 320 stone hone.
« Last Edit: Thursday, October 28, 2010. 04:18:16 AM. by 02FYRFTR »

Offline hotroadking

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Re: Softail blows out cam bearing - Pictures
« Reply #3 on: Tuesday, October 26, 2010. 11:14:57 AM. »
I'll pass that on, probably ride over this evening and get a look
wonder if Delkron will replace the bushing for him..

Heck it's a $400 plate.

You got any 103 flywheels sitting around looking for homes LOL


Offline prodrag1320

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Re: Softail blows out cam bearing - Pictures
« Reply #4 on: Tuesday, October 26, 2010. 11:38:02 AM. »
how long has the delkron plate been in there?might want to check the plate against a stocker,we've had our share of mis-machined delkron stuff over the years
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Offline hotroadking

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Re: Softail blows out cam bearing - Pictures
« Reply #5 on: Tuesday, October 26, 2010. 11:42:17 AM. »
I think 4 or 5 years but I know it's not recent...

Frankly I  think with the mild build, the stock HD cam plate is
sufficient, or change over with the andrews conversion kit and
dump the gears.

Offline vgfxst05

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Re: Softail blows out cam bearing - Pictures
« Reply #6 on: Tuesday, October 26, 2010. 01:49:48 PM. »
Hey 02fyrftr, What are you asking for the B crank as i am possibly interested?

Online rbabos

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Re: Softail blows out cam bearing - Pictures
« Reply #7 on: Tuesday, October 26, 2010. 03:26:02 PM. »
Don't think runout would be and issue since the scoring is all around the journal. With runout only part of the journal gets scuffed and the whole bronze bushing, but a runout check is in order regardless, just to know for sure where you stand.  Looks like debri attacked it. 02FYRFTR's method is what I'd do, myself. Good as new when done.
Ron
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Offline Max Headflow

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Re: Softail blows out cam bearing - Pictures
« Reply #8 on: Tuesday, October 26, 2010. 04:49:14 PM. »
What I'd be concerned about is what made it into the rods..

Max
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Offline shadylane

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Re: Softail blows out cam bearing - Pictures
« Reply #9 on: Tuesday, October 26, 2010. 05:26:33 PM. »
 01 Heritage 108K miles. I love to see high milage bikes.
If he is going to up the CR and add cams then I'd recommend doing the bottom end also. Dont forget the ballancer shafts and the assorted parts that goes with it. PLEASE give us more pictures. Anything with a wear pattern would be nice. I seldom get to see high milage B engines disassembled.

Offline hotroadking

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Re: Softail blows out cam bearing - Pictures
« Reply #10 on: Tuesday, October 26, 2010. 06:22:36 PM. »
will do, it will probably stay a 95, we have pistons cams etc
probably send the heads off to Bill at Bishops for a clean up,  valves, guides, springs
and the cyl for a hone and have Bill check and setup the rings and pistons in the cyl

we'll put it back together here.

Bottom end is my concern, I agree max no reason to spend a ton of green and find a fubar'd
rod bearing in the end.   

I think if runout is good , then get it apart, timken bearing the cases, new bearings and all in the balancers
and then redo the top in the garage


Offline Max Headflow

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Re: Softail blows out cam bearing - Pictures
« Reply #11 on: Tuesday, October 26, 2010. 09:31:19 PM. »
Yah know,, If the motor made it 108,000 on rollers, I'd put rollers back in.. Assume they are what took out the motor and as far as I can tell it was the front cam plate bearing.. Rollers are so much easier to set up...  :smile:  Max
Aka Mousinator, Another Wasted Minute With Max,
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Offline HD99FXR3

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Re: Softail blows out cam bearing - Pictures
« Reply #12 on: Wednesday, October 27, 2010. 05:23:06 AM. »
It's an '01 bike it already has the Timkens in it.

Offline Max Headflow

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Re: Softail blows out cam bearing - Pictures
« Reply #13 on: Wednesday, October 27, 2010. 06:53:16 AM. »
It's an '01 bike it already has the Timkens in it.

Yep,

My turn to misread something.. Max
Aka Mousinator, Another Wasted Minute With Max,
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Offline hotroadking

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Re: Softail blows out cam bearing - Pictures
« Reply #14 on: Wednesday, October 27, 2010. 07:45:23 AM. »
It's an '01 bike it already has the Timkens in it.
Yep, My turn to misread something.. Max

and the picture too! LOL

Offline hotroadking

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Re: Softail blows out cam bearing - Pictures - Updfate on Runout
« Reply #15 on: Wednesday, October 27, 2010. 03:01:54 PM. »
Called me today, according to him the run-out deflection is .006
maybe why the gear drives took out the cam bearing ,or just part and parcel to the
age....

So,  replace the flywheel assembly, bearings, and all or any other option

Looks to me with that much movement he's going to have to redo the bottom.