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Author Topic: Twin cam lifters  (Read 11407 times)

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prodrag1320

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Re: Twin cam lifters
« Reply #30 on: July 31, 2017, 07:40:50 AM »

its not a "filter",its more of a oil separator.it keeps the oil from coming out the breathers.get a cometic gasket kit,it will come with new ones.get some S&S lifters too

longlast

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Re: Twin cam lifters
« Reply #31 on: July 31, 2017, 09:22:57 AM »

its not a "filter",its more of a oil separator.it keeps the oil from coming out the breathers.get a cometic gasket kit,it will come with new ones.get some S&S lifters too

Got the HD breather kit, and S&S lifters coming in the mail, there still in transit.

I did some research on it and yes it is supposed to stop/ reduce the amount of oil that comes thru with the crankcase air pressure.

By the deterioration of the filter/ separator to the point of it being an unrecognisable crumbling mass in 18+ k it looks like it's something that needs replacing in a 10/12 k service.

I haven't seen anything about servicing the breather assembly.

What do you more experienced boys do about this unit?
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HD Street Performance

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Re: Twin cam lifters
« Reply #32 on: July 31, 2017, 09:36:08 AM »

Purchase new parts from harley pt # 26500002 $7.50 for the soft parts or 17025-03a ~$15 for the whole breather assembly. Not sure if Cometic properly covers the latest revision breathers in their kits.
« Last Edit: July 31, 2017, 10:02:44 AM by HD Street Performance »
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longlast

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Re: Twin cam lifters
« Reply #33 on: August 01, 2017, 07:43:50 AM »

New breather assembly kit came today still waiting on the S&S lifters.

Look at the oil strainer/filter and the Brown carp is what happens to it in18k.

It's in my bucket list to check on the 5,000 mile service
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HD Street Performance

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Re: Twin cam lifters
« Reply #34 on: August 01, 2017, 08:53:32 AM »

I suggest purchasing the new revised harley breathers. They work better.

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longlast

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Re: Twin cam lifters
« Reply #35 on: August 01, 2017, 09:25:42 AM »

I suggest purchasing the new revised harley breathers. They work better.

I did take your advice and order it from Harley, that's what they sent me. :nixweiss:

I didn't specifically ask for the new revised kit I assumed that's what they would have sent if it's been revised.

I'll be sure to get it next time when I do the service at 5k
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skratch

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Re: Twin cam lifters
« Reply #36 on: August 01, 2017, 09:54:12 AM »

I suggest purchasing the new revised harley breathers. They work better.

so his post showed part number  17162-03, yours shows 17025-03A, and the fiche for my 2013 shows 26500002.  which one is the best one to use?
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J.D.

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Re: Twin cam lifters
« Reply #37 on: August 01, 2017, 11:43:17 AM »

I suggest purchasing the new revised harley breathers. They work better.

I've heard this before.  Can someone explain why the more recent stamped sheet metal breather assemblies work better than the earlier cast aluminum design?  I assumed the design change was more of a cost savings than a performance improvement.
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roadrunner

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Re: Twin cam lifters
« Reply #38 on: August 01, 2017, 01:42:39 PM »

so his post showed part number  17162-03, yours shows 17025-03A, and the fiche for my 2013 shows 26500002.  which one is the best one to use?
26500002 doesn't include the bolts.
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longlast

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Re: Twin cam lifters
« Reply #39 on: August 01, 2017, 03:47:34 PM »

so his post showed part number  17162-03, yours shows 17025-03A, and the fiche for my 2013 shows 26500002.  which one is the best one to use?

The revised version 17025-03A

Mine is just gaskets oil strainer and diaphragm 17162-03.
 If the oil strainer is degrading when I check it on the next 5k service I'll be putting in the revised version and see how that holds up.
I may just go as far as to do a 1k check. I don't want it to get to the point the other ones got to.
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HD Street Performance

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Re: Twin cam lifters
« Reply #40 on: August 01, 2017, 09:17:23 PM »

Get the bolts too if converting.
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longlast

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Re: Twin cam lifters
« Reply #41 on: August 02, 2017, 02:25:14 AM »

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longlast

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Re: Twin cam lifters
« Reply #42 on: August 02, 2017, 03:34:09 AM »

I've done an inspection of the lifters l removed and they seem to have been traveling good. The bore hole walls  are slightly polished the rollers and cam lobes look good,..No pitting, rollers look like they were running true on the cam.
I've been seeing there's a lot of talk about cam bearings with the 110s. I was wondering what it is as to why they fail? Inadequate cheap bearing for the application?
It seems everyone recommends to change/upgrade them.
What's the signs that the bearings are failing/failed?
I was wondering about this as l have it apart as to the point of accessing the cam now, would it be a good idea to do the cam bearings now then later or sooner?
It also seems that it's just the inner bearing that is said to replace, what about the outer ones would they not have to be replaced as well?
Are the Torrington B 148 bearing right for my 07 Ultra?
What's the deal with these Torrington bearings is it S&S  that use them? Or bo I have that wrong?
« Last Edit: August 02, 2017, 08:09:23 AM by longlast »
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HD Street Performance

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Re: Twin cam lifters
« Reply #43 on: August 02, 2017, 08:59:01 AM »

It is not a brand issue. There are light duty skip roller caged needle bearings and then there are the heavy duty equivalents that have 100% roller coverage, full compliment bearings. B168 is the Timken number for 07up tc.The added pressure from the valve train of the cvo we have described is adequate reason to change them proactively.  The 2013up tc cvo has the Timkens stock I believe.
A lifter or cam bearing failure can and has ruined cases so these are not items to take lightly. At bare minimum when the metal starts floating in the system a motor needs an overhaul and the whole oil system needs to be cleaned including the oil tank to do a proper fix. Not pretty.
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r0de_runr

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Re: Twin cam lifters
« Reply #44 on: August 02, 2017, 05:44:48 PM »

If you have the cams out already, replace the inner cam bearings with the B168's.

Also, the cam bolts are a one use item.
25566-06     CAM DRIVE SPROCKET RETENTION KIT w/ 6294 & screws | PZ     $5.59


An analgy would be using a new inner tube in a new tire on a heavy bike with spokes.
A new set of tires on your car, gets new valve stems.

If you don't have the cam bearing  removal/replacement tools you can borrow mine.
https://www.cvoharley.com/smf/index.php?topic=100390.0
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