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May 6th, 2007, 06:57 PM
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#1 | | Newbie
Join Date: Apr 2007 Location: Texas
Posts: 9 Model: 07 Road King Classic Occupation: educator
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I traded my '05 deluxe for a '07 Road King Classic. Love the ride.
Question: Anybody solve the "throw out bearing" sound when in 5th gear? The squealing has me concerned. I'm taking it back to the dealer to see what the techs say. | 
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May 6th, 2007, 08:10 PM
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#2 | | Administrator Frequent Posting Club
Join Date: Jan 2005
Posts: 1,240 Model: Harley FLHX Occupation: Web Developer by day, 25+ years of carb building by day, hey what happened to my day?!
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I've heard of the new Harley 6 speed's having gear whine but not squealing. Does it do this both under load and coasting while in 5th gear? | 
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May 7th, 2007, 06:29 AM
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#3 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 541 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| Not sure how much of this is fact, but here is my 2 cents worth based on information from a few tech breifs I read.
When HD designed the new 6 speed they used helical cut gears in 1thru 4, and 6th gear. For whatever reason, they retained 5th gear as a straight cut gear. So not sure if this was a cost savings issue or just a less than perfect design on HD's part. Because helical gears run more quiet and shift smoother than a straight cut gear, people tend to notice the noise of 5th gear more than the others. I also read that intitially HD spec'd the wrong fliud for the new tranny, which made it even louder.
One thing I do know for sure is that in the Feb or March edition of Thunderpress News, Baker transmission had a full page add marketing a rebuild kit that will eliminate the 5th gear noise in the new HD 6 speed. Makes you wonder what they know!  | |
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May 7th, 2007, 06:37 AM
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#4 | | Rookie 10+ posts
Join Date: Dec 2006 Location: australia
Posts: 18 Model: 07 Streetglide Interests: riding and driving 4x4 Occupation: truck driver
| I have an 07 Streetglide, about 1 month old with only about 2500klms, and can notice a small difference in noise level in 5th, but it is minimal. As mentioned earlier, it may be the oil. Hope they fix it for you | |
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May 7th, 2007, 07:12 AM
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#5 | | Rookie 10+ posts
Join Date: Apr 2007
Posts: 15
| my 07 has a sound in first gear/sounds like a diesel engines turbo.no other gears have any noise.my 05 /5 speed has a 4th gear noise but i just got used to it.
if u havent tried it run 70 weight oil in the tranny/shifts smoother and is a better lube than just 20-50oil | |
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May 7th, 2007, 07:27 AM
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#6 | | Newbie
Join Date: Apr 2007 Location: Texas
Posts: 9 Model: 07 Road King Classic Occupation: educator
| Quote:
Originally Posted by kenfuzed  I've heard of the new Harley 6 speed's having gear whine but not squealing. Does it do this both under load and coasting while in 5th gear? | I've not coasted with it, but regular riding single or two up it squeals. If you can remember what a throw out bearing sounds like when it was going out, that's what it reminds me of. I'm concerned to ride in 5th.
Thank you for the reply.
This site is going to be very helpful!
Thanks for being here! | |
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May 7th, 2007, 07:29 AM
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#7 | | Newbie
Join Date: Apr 2007 Location: Texas
Posts: 9 Model: 07 Road King Classic Occupation: educator
| Quote:
Originally Posted by madcatter my 07 has a sound in first gear/sounds like a diesel engines turbo.no other gears have any noise.my 05 /5 speed has a 4th gear noise but i just got used to it.
if u havent tried it run 70 weight oil in the tranny/shifts smoother and is a better lube than just 20-50oil | My 05 deluxe softtail had no gear noise.
I do know when i had the amsoil oil in the crankcase, trans, and primary, things were quieter and smoother.
Diesel sound. mmmmmm......another good anology. its loud. I'm embarassed to ride by somebody in 5th gear. | |
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May 7th, 2007, 07:31 AM
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#8 | | Newbie
Join Date: Apr 2007 Location: Texas
Posts: 9 Model: 07 Road King Classic Occupation: educator
| Quote:
Originally Posted by ringo912 Not sure how much of this is fact, but here is my 2 cents worth based on information from a few tech breifs I read.
When HD designed the new 6 speed they used helical cut gears in 1thru 4, and 6th gear. For whatever reason, they retained 5th gear as a straight cut gear. So not sure if this was a cost savings issue or just a less than perfect design on HD's part. Because helical gears run more quiet and shift smoother than a straight cut gear, people tend to notice the noise of 5th gear more than the others. I also read that intitially HD spec'd the wrong fliud for the new tranny, which made it even louder.
One thing I do know for sure is that in the Feb or March edition of Thunderpress News, Baker transmission had a full page add marketing a rebuild kit that will eliminate the 5th gear noise in the new HD 6 speed. Makes you wonder what they know! | Thanks, I'll check into that further and demand the right gear oil in the tranny. | |
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May 7th, 2007, 07:32 AM
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#9 | | Newbie
Join Date: Apr 2007 Location: Texas
Posts: 9 Model: 07 Road King Classic Occupation: educator
| Quote:
Originally Posted by manyanna51 I have an 07 Streetglide, about 1 month old with only about 2500klms, and can notice a small difference in noise level in 5th, but it is minimal. As mentioned earlier, it may be the oil. Hope they fix it for you | Do you know what oil is in the tranny?
Thank you for the info. | |
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May 7th, 2007, 07:47 AM
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#10 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 541 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| I've been running synthetics in all cases since the 1000 mile checkup. JMO, but I never bought into the claims that you can use the same oil in all 3 cases, especially in the trans. There's a lot of high pressure gear meshing going on in there and with the trans tuck low behind the engine, there's not a lot of airflow to keep the trans cool. I don't think 20-50 is enough protection for the trans.
There's are a lot of good dino based and synthetics on the market. I run AMSOIL 20-50 in the engine and primary, and run 75-90 in the tranny. It shifts smooth and there is no noise. | |
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May 7th, 2007, 08:56 AM
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#11 | | More than 100 posts!
Join Date: Dec 2006 Location: Cape Coral, Florida
Posts: 124 Model: '04 FXDL Interests: drag racing, muscle cars, street rods, annoying others
| The 5th gear was straight cut because it carries more of a load and a straight cut is stronger, but noiser. Regarding trans oil, 70/90 is the way to go, never understood why they were putting 20/50 in the the trans. | |
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May 7th, 2007, 01:50 PM
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#12 | | Has posted 500+
Join Date: Jun 2004
Posts: 1,915
| Most folks don't know , and I didn't until I did some research that motor oils and gear oils are rated differently however they can have the same viscosity but use a different scale.
so 20W-50 is the same viscosity as 75/90 gear oil.
Kind of like SAE to Metric, both are measurement scales.
That's why HD says you can run the 20/50 syn, I prefer to run
Mobil1 in the motor, and Redline Heavy shockproof in the trans, | |
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May 7th, 2007, 02:39 PM
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#13 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 541 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| Not sure if it's true, but I'm told that there is an ingrediant in the trans oil that is designed for lubricating the gears. With the exception of the 3 in 1 oils, the regular motor oil does not have this. | |
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May 7th, 2007, 07:27 PM
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#14 | | Has posted 500+
Join Date: Feb 2007 Location: middleburg, pa
Posts: 678 Model: 06 FLST hertiage, stage 1 1450 pc111 Interests: hunting,wood working Occupation: medical asst. tech/DPW
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seems to me a if your hearing all these noises your pipes aren't loud enough. better pull them buffles  | |
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May 8th, 2007, 05:30 AM
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#15 | | Rookie 10+ posts
Join Date: Dec 2006 Location: australia
Posts: 18 Model: 07 Streetglide Interests: riding and driving 4x4 Occupation: truck driver
| Referee, mine is running factory oil at present but I will change it to Mobil full synthetic 70/90 gear oil. I have used it in all my bikes and swear by it. I would try Amsoil but too hard to obtain in Aust. | |
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May 8th, 2007, 05:44 AM
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#16 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 541 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| Hey manyanna51...i don't think you can go wrong with the mobile 1, great product. There are a lot of good products out there, Mobil1 , Redline, and AMSOIL just to name a few. I heard about a product called Royal Purple, but don't really know any details about it. So I say stick with what works. | |
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May 8th, 2007, 08:00 AM
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#17 | | Moderator Has posted 500+
Join Date: Jul 2005
Posts: 4,275
| i am running royal purple.........so far .....so good.... | |
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May 12th, 2007, 04:01 AM
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#18 | | More than 100 posts!
Join Date: Dec 2004 Location: Knoxville, TN
Posts: 149 Model: 07 SE ROAD KING, 04 LOW RIDER Interests: MOTORCYCLES, NASCAR Occupation: TRUCKER , OWNER OPERATOR
| Quote:
Originally Posted by skull2007 seems to me a if your hearing all these noises your pipes aren't loud enough. better pull them buffles | I'M WITH U SKULL  | |
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May 12th, 2007, 04:11 AM
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#19 | | More than 100 posts!
Join Date: Dec 2004 Location: Knoxville, TN
Posts: 149 Model: 07 SE ROAD KING, 04 LOW RIDER Interests: MOTORCYCLES, NASCAR Occupation: TRUCKER , OWNER OPERATOR
| Quote:
Originally Posted by referee I've not coasted with it, but regular riding single or two up it squeals. If you can remember what a throw out bearing sounds like when it was going out, that's what it reminds me of. I'm concerned to ride in 5th.
Thank you for the reply.
This site is going to be very helpful!
Thanks for being here! | DON'T BE AFRAID TO RIDE IN 5TH GEAR, I HAVE THE ROAD KING SCREAMIN EAGHLE 6 SPEED 110CU. IN. WITH A LOT OF TORQUE, HAVE OVER 3,000 MILES ON THE BIKE, MOST OF MY RIDING IS 2 UP I DO NOT USE 6TH GEAR UNTIL ABOVE 70 MPH, WE DO A LOT OF RIDING IN THE MOUNTAINS WHICH MEANS A LOT OF GEAR SHIFTING, BESIDES IF IT COMES OUT ITS NEW LET HARLEY FIX IT AND PAY FOR IT
LIVE EASY, RIDE HARD | |
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