Jump to content

Ever hear of throttle body cable sprocket breaking?


Redman

Recommended Posts

09 RT in for 6k service, and they said the throttle body cable sprocket broke during the service work.

Said is not common but does happen.

siad good news is that they have a rebuild kit in stock, and have an opening later in day in schedule that can replace it. Bad news is that is $175 and 3 hours shop time. 
I have no familiarity with this, they quickly showed me the rebuild kit. I asked for parts.

 

part number  12557 r12rt throttle body kit

 

19D3180E-1A2A-4154-904B-38BF81D3B5CB.jpeg

FA0A8E87-48B7-4294-A6E0-A3D8C50EA303.jpeg

Edited by Redman
Part number
Link to comment

Ah, I see, 

looks like the black plastic part (sprocket?) is formed around that shaft flange.

 

anyway, wonder what anybody can say about this.

 

 

7CC4F6AC-F98E-4A0C-A77F-04AC0B19507D.jpeg

Link to comment

So 

 

6k service

 

+
 

replace final drive outer seal

 

+
 

replace throttle body cable kit

 

= $1300

Link to comment
58 minutes ago, LBump said:

For your reading pleasure

 

How to Install  though you don't need it now...

Ah….

Thanks.

Oh, maybe if I knew what to call it, I could have done a search and found that.

 

okay, my ignorance.

is something that maybe is common knowledge for others.

 

seems that part is a common problem…. For that plastic part to crack anyway. 
 

Wonder if can be cracked and still last quite a long time that way.

  • Like 1
Link to comment
KDeline

Every bike I own had broken cams, with parts and labor I'm out more than 2 (Yes TWO) grand. Every bike built with this plastic system will have this problem. Ticking time bomb that will strand you. Thanks BMW.

  • Like 1
Link to comment
3 hours ago, Redman said:

Ah….

Thanks.

Oh, maybe if I knew what to call it, I could have done a search and found that.

 

okay, my ignorance.

is something that maybe is common knowledge for others.

 

seems that part is a common problem…. For that plastic part to crack anyway. 
 

Wonder if can be cracked and still last quite a long time that way.

 

2 hours ago, KDeline said:

Every bike I own had broken cams, with parts and labor I'm out more than 2 (Yes TWO) grand. Every bike built with this plastic system will have this problem. Ticking time bomb that will strand you. Thanks BMW.

 

 

The BMW Moto way is... we are Beta Testers! 

Link to comment
dirtrider
11 hours ago, Redman said:

 

Wonder if can be cracked and still last quite a long time that way.

Morning Redman

 

Can it last a long time with a cam crack?-- Sure but they typically don't. Those darn things have a habit of breaking when you least expect it. Like in the L/H lane of a 4 lane highway at night with 90mph traffic coming up behind you. Or when you are 500 miles from the closest BMW dealer on a Sunday, or when you go to pull out into oncoming traffic & a cam breaks so the bike just quits pulling. 

 

Some will go for a while with cracks & others will completely crumble at the worst time. (are you feeling lucky?)

 

You do have other options as you can install them yourself) see my linked post above. Or remove the throttle bodies yourself then send them to BING USA for new plastic cams, or new cam/shaft, replacement (I'm not sure on the price but probably a LOT cheaper than your dealer will do it).  It will probably run OK when they come back but to do it totally correctly you probably should put a GS-911 on it to check, then do an above-idle TB balance adjustment using a manometer (not difficult). 

 

Call BING USA for labor costs, here is a link to the parts____   https://www.bingcarburetor.com/throttlebodies.html

 

 

 

 

Link to comment

Thanks.

 

Yep, $46 for both cams, instead of $175 for entire kit that includes shafts and seals and 3 hours shop time to replace all.

 

(Hopefully the kit is redesigned to not have this problem repeat.) (but then again, did last 12 years and 60+k miles.)

Link to comment
2 hours ago, dirtrider said:

 

Can it last a long time with a cam crack?-- 

.…..

Some will go for a while with cracks & others will completely crumble at the worst time. (are you feeling lucky?)

…..

Thanks. I was wondering if most are cracked yet are fairly functional, …… but dealer can fill opening in schedule.

 

am glad it was taken care of, and not fail later. But yet annoyed with the expense.

 

yah, it does seem like catastrophic failures occure in unfortunate situations, like, oh, just to imagine random situations (with 02 RT) :

- fourth of five lane I-5 in sandiego, 70mph, heavy traffic, with wife on back (2015)

- cross county trip, 500 miles from home, 40 miles outside of St. Louis (2019)

Link to comment
dirtrider
33 minutes ago, Redman said:

Thanks.

 

Yep, $46 for both cams, instead of $175 for entire kit that includes shafts and seals and 3 hours shop time to replace all.

 

(Hopefully the kit is redesigned to not have this problem repeat.) (but then again, did last 12 years and 60+k miles.)

Morning Redman

 

Actually, unless things have changed, the parts are the exact same as original (AFAICT),  at least as of last December, as that is the last set I have installed in a 1200 hexhead).

 

Make sure that you file a complaint with NHTSA, if all these failures finally take root with NHTSA  it might force a recall, if that happens then then you will probably get reimbursed for the money spent replacing them. 

  • Like 1
Link to comment
Bigfish

You should definitely do both sides. 99% probability the other Cam is cracked. I choose to put Beemer Bit upgraded Aluminum ones on my bike. No way was I going to put on a part that I know will fail.

Good luck.

Link to comment
Scott9999
On 4/27/2022 at 4:07 AM, dirtrider said:

Morning Redman

 

Can it last a long time with a cam crack?-- Sure but they typically don't. Those darn things have a habit of breaking when you least expect it. Like in the L/H lane of a 4 lane highway at night with 90mph traffic coming up behind you. Or when you are 500 miles from the closest BMW dealer on a Sunday, or when you go to pull out into oncoming traffic & a cam breaks so the bike just quits pulling. 

 

Some will go for a while with cracks & others will completely crumble at the worst time. (are you feeling lucky?)

 

You do have other options as you can install them yourself) see my linked post above. Or remove the throttle bodies yourself then send them to BING USA for new plastic cams, or new cam/shaft, replacement (I'm not sure on the price but probably a LOT cheaper than your dealer will do it).  It will probably run OK when they come back but to do it totally correctly you probably should put a GS-911 on it to check, then do an above-idle TB balance adjustment using a manometer (not difficult). 

 

Call BING USA for labor costs, here is a link to the parts____   https://www.bingcarburetor.com/throttlebodies.html

 

 

 

 

Just curious (and not wanting to look this up right now), and to add additional *** PANIC!!! *** to my day.  🙄😁

 

Do the RTW's have this same system?  If so, definitely going to stash away that bing link.  Thanks.

Link to comment
dirtrider
13 minutes ago, Scott9999 said:

Just curious (and not wanting to look this up right now), and to add additional *** PANIC!!! *** to my day.  🙄😁

 

Do the RTW's have this same system?  If so, definitely going to stash away that bing link.  Thanks.

Evening Scott

 

When BMW went to the fly-by-wire (electronic throttle) the problem seems to be gone. But knowing BMW they probably just replaced that expensive problem with a new (yet to be determined) just as expensive & difficult to repair problem. 

  • Haha 1
Link to comment
Scott9999
6 hours ago, dirtrider said:

Evening Scott

 

When BMW went to the fly-by-wire (electronic throttle) the problem seems to be gone. But knowing BMW they probably just replaced that expensive problem with a new (yet to be determined) just as expensive & difficult to repair problem. 

Lol, I knew that.  That's why I sold off my Twinmax.  I just forgot.  I'm old like that.   I just couldn't connect the obvious dots.

Link to comment
The Rocketman
On 4/26/2022 at 6:26 PM, Redman said:

Said is not common but does happen.

BULL SH*T.

They all know about it, and deny, deny, deny. Call the NHTSA like we all did and register a complaint.

Link to comment
Redman
On 5/2/2022 at 3:19 PM, Ponch said:

I was an early adopter in 2015. 

. . . . .  .  adopter .... ?

Link to comment
Ponch
On 5/3/2022 at 7:27 PM, Redman said:

. . . . .  .  adopter .... ?

 

It happened to me before most other folks and there were no parts to be had from Bing or the guy in Tucson. BMW basically said, pay to have it fixed and send us the receipt and we'll review it if we'll help out or not. I bought a used set of throttle  bodies off Ebay from a salvage bike. It really pissed me off. Still does. 109667596_photo4.thumb.JPG.d7a08f07d90cf4b9760c4bf88b68a512.JPG

Link to comment
Redman
2 hours ago, Ponch said:

 

It happened to me before most other folks and there were no parts to be had from Bing or the guy in Tucson. BMW basically said, pay to have it fixed and send us the receipt and we'll review it if we'll help out or not. I bought a used set of throttle  bodies off Ebay from a salvage bike. It really pissed me off. Still does. 

.

Thanks. Seems to be a somewhat common problem.

Link to comment
On 5/9/2022 at 5:32 PM, Redman said:

Thanks. Seems to be a somewhat common problem.

 

I think the Arizona heat just accelerated it. For 8 months before they failed, I rode every workday to work on the bike and that's through the whole summer. It's funny, they'll put out a 12 year warranty extension on the fuel strip but they won't fix this. 

Link to comment
  • 1 month later...

Has anyone heard anything more from the NHTSA? I recall some of you getting phone calls from them. 

Link to comment

Just wondering. I had an experience after commenting about the problem on BMW Motorcycle's FB page and they contacted me. After telling of my situation and even links to posts here, the short of it is, we're sorry you had problems with you BMW in the past. I'll share your concerns with management. I guess that pretty much spells it out. 

  • Like 1
Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...