Print Page - Rocker housing oil drain mod?

Title: Rocker housing oil drain mod?
Post by: Finn on March 30, 2020, 09:19:11 AM

Cheers!

Is this mod still recommended to do 'just in case' on a 2016 when things are already apart for other tasks?

https://harleytechtalk.com/htt/index.php/topic,95430.msg1106658.html (https://harleytechtalk.com/htt/index.php/topic,95430.msg1106658.html)

[attach=0,msg1339739]

Title: Re: Rocker housing oil drain mod?
Post by: Finn on March 30, 2020, 09:20:38 AM

Also, may I ask when did they change to stamped steel breathers?

Title: Re: Rocker housing oil drain mod?
Post by: TXChop on March 30, 2020, 09:25:00 AM

Every twin cam i open gets those holes opened, new stamped breather and rocker lockers from our vendor here.

Title: Re: Rocker housing oil drain mod?
Post by: 838 on March 30, 2020, 09:45:20 AM

I just did this over the weekend. Based on a few tips from guys on here I punched them through to 1/8" and then used a 3/16" to create a deep chamfer.

Title: Re: Rocker housing oil drain mod?
Post by: Rockout Rocker Products on March 30, 2020, 10:17:26 AM

Yep, still recommended "while you're in there".

Some use a .109 diameter drill so it leaves a bit of the original chamfer.

Title: Re: Rocker housing oil drain mod?
Post by: Finn on March 30, 2020, 09:21:59 PM

Thank you, gents. :beer:

Title: Re: Rocker housing oil drain mod?
Post by: hogpipes1 on April 04, 2020, 03:59:09 PM

Quote from: TXChop on March 30, 2020, 09:25:00 AM
Every twin cam i open gets those holes opened, new stamped breather and rocker lockers from our vendor here.

Who sells the the breathers.? I know john sells the lockers.

Title: Re: Rocker housing oil drain mod?
Post by: cheech on April 04, 2020, 04:35:10 PM

Quote from: hogpipes1 on April 04, 2020, 03:59:09 PM
Quote from: TXChop on March 30, 2020, 09:25:00 AM
Every twin cam i open gets those holes opened, new stamped breather and rocker lockers from our vendor here.

Who sells the the breathers.? I know john sells the lockers.

It's a revised part that Harley offers. Harley #17025-03A (Need 2).
I also seen Cometic offers/offered a kit: Click to See (https://www.denniskirk.com/cometic/updated-breather-assembly-kit-c10161.p267158.prd/267158.sku) Their 2019 catalog doesn't have the number in it.
Also note Shorter screws are needed that the Harley number has but the Cometic doesn't, if anyone went that way.

Title: Re: Rocker housing oil drain mod?
Post by: SP33DY on April 06, 2020, 08:55:32 AM

QuoteWho sells the the breathers.? I know john sells the lockers.

Drag Specialties carries the Cometic steel breathers, Drag P/N 0934-6002

Don't forget to shorten the bolts.

Title: Re: Rocker housing oil drain mod?
Post by: Ohio HD on April 06, 2020, 09:03:46 AM

17025-03A from HD and they come with the shorter bolts. Price is the same. or less than Drag.

Title: Re: Rocker housing oil drain mod?
Post by: Hillside Motorcycle on April 07, 2020, 04:30:12 AM

Shared that info about 15 years ago.
Even .150".

Title: Re: Rocker housing oil drain mod?
Post by: hogpipes1 on April 07, 2020, 02:13:00 PM

:agree:

Quote from: Ohio HD on April 06, 2020, 09:03:46 AM
17025-03A from HD and they come with the shorter bolts. Price is the same. or less than Drag.

Good i will stick with O.E. :up:

HarleyTechTalk

Technical Forums => Twin Cam => Topic started by: Finn on March 30, 2020, 09:19:11 AM