Valve Train Noise? - Harley Davidson Forums



General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by: J&P Cycles

Valve Train Noise?

Closed Thread
 
 
 
P
 
Thread Tools Search this Thread
  #1  
Old 08-04-2010, 12:32 PM
sduhn sduhn is offline
New Member
Thread Starter
Join Date: Aug 2009
Location: Spruce Grove AB. Canada
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Cool Valve Train Noise?

I have an 09 Street Glide with approx 18000km (approx 11000 miles) Took it for it's 1st big trip last weekend and after riding for more than 8hrs and letting the bike cool down over night, I noticed that there is a very loud clacking sound when it's cold....almost like the lifters arnt pressuring up,(I know the bike has solid lifters) noise is there until the engine reaches operating temp or it's riden for 1/2 hour then noise is gone for the rest of the day till the engine is cold again. Bike is going in for broken fairing brackets and front tire this week, just wondering if anyone has the same issue and or what they did to get rid of the noise.....I also have a 2010 Street Glide and that thing is as quiet as a mouse, no valvetrain noise what so ever...engine are all built the same, same parts, but some are noisier than others, so I've been told by HD.....but this very loud clacking noise shouldn't be considered normal....any suggestions?
  #2  
Old 08-04-2010, 01:33 PM
reddog8145's Avatar
reddog8145 reddog8145 is offline
Road Captain
Join Date: May 2009
Location: Mancheser UK
Posts: 597
Thanks: 0
Thanked 0 Times in 0 Posts
Default

The hand book states that valve train noise should settle after a few mins on starting, however if there appears to be excess noise it should be chcked out. In my opinion if its as you've described I'd get it checked.

Reddog GB
  #3  
Old 08-04-2010, 02:49 PM
stro1965's Avatar
stro1965 stro1965 is offline
Ultimate HDF Member
Join Date: Feb 2007
Location: Bellevue, NE
Posts: 9,482
Thanked 31 Times in 22 Posts
Default

My bike is just now back home after spending a week in the shop. I explained to the tech that I had what I initially thought was excessive valve train noise but was now leaning toward primary noise. Almost sounded like chain slap. It went away once the bike was at full operating temp. When first taking off it was very loud at and above 2600rpm's. When I would decelerate I could hear it too. It turned out that my clutch hub bearing was bad (29K on bike). It had walked on the shaft over to the inner primary wall and was smacking against it. The tech thought that maybe it went away once there was enough oil around the bearing to act as a cushion. My chain needed replaced too, as almost all of the rollers were pitted and most had visible dents in them from excess pressure from the too tight chain. I don't know if this is your issue at all, but my bike is soooo quiet now it's awesome again. Good luck.
  #4  
Old 08-04-2010, 03:05 PM
cadman311's Avatar
cadman311 cadman311 is offline
Club Member
Join Date: Feb 2007
Location: DUNDALK,MARYLAND
Posts: 4,892
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Q: (If this is your problem?)

A hydraulic lifter, also known as a hydraulic tappet or a hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. The conventional means of adjusting valve actuation always requires a small clearance to be left between the valve and its rocker or cam follower to allow for thermal expansion and wear. The hydraulic lifter was designed to ensure that the valve train always operates with zero clearance, leading to quieter operation and eliminating the need for periodic adjustment of valve clearance.

The hydraulic lifter consists of a hollow expanding piston situated between the camshaft and valve. It is operated either by a rocker mechanism, or in the case of one or more overhead camshafts , directly by the camshaft. The lifter is filled with engine oil intermittently from an oil gallery via a small drilling. When the engine valve is closed, the lifter is free to fill with oil. When the valve is opening and the lifter is being operated by the camshaft, the oil feed is blocked and the lifter acts just as a solid one would, oil being incompressible.



A: (You are use cheap oil or your oil level is low in your bike.)
  #5  
Old 08-04-2010, 04:21 PM
JRK5892 JRK5892 is offline
Banned
Join Date: Mar 2007
Location: Chicago suburbs (Elgin/Schaumburg)
Posts: 19,480
Thanks: 0
Thanked 2 Times in 2 Posts
Default

20oz lucas oil treatement wiht your oil changes... goodbye sound! works great i have a built motor and mine even went away
  #6  
Old 08-04-2010, 04:43 PM
cuda67bnl's Avatar
cuda67bnl cuda67bnl is offline
Outstanding HDF Member
Join Date: May 2009
Location: GA.
Posts: 2,049
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by sduhn View Post
I know the bike has solid lifters
It has hydraulic lifters if it's stock........
  #7  
Old 08-04-2010, 04:54 PM
rstekeur's Avatar
rstekeur rstekeur is offline
Road Captain
Join Date: Jun 2008
Location: Ft Myers FL
Posts: 549
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by cadman311 View Post
Q: (If this is your problem?)

A hydraulic lifter, also known as a hydraulic tappet or a hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. The conventional means of adjusting valve actuation always requires a small clearance to be left between the valve and its rocker or cam follower to allow for thermal expansion and wear. The hydraulic lifter was designed to ensure that the valve train always operates with zero clearance, leading to quieter operation and eliminating the need for periodic adjustment of valve clearance.

The hydraulic lifter consists of a hollow expanding piston situated between the camshaft and valve. It is operated either by a rocker mechanism, or in the case of one or more overhead camshafts , directly by the camshaft. The lifter is filled with engine oil intermittently from an oil gallery via a small drilling. When the engine valve is closed, the lifter is free to fill with oil. When the valve is opening and the lifter is being operated by the camshaft, the oil feed is blocked and the lifter acts just as a solid one would, oil being incompressible.



A: (You are use cheap oil or your oil level is low in your bike.)

I sorry I don't buy that answer. almost everyone I talk to that has 10-15k mile has a lot of what sounds to be lifter noise. I had it on the 05 EGC and I have it on the 09 EGC I have how. I started with dino oil until the first 1k service and switched to syn3. somewhere around 10k I started noticing the lifter noise.I'm at 16k now. I switched to Redline in all 3 hole the last service and it may be a slight bit quieter but not much. I've asked the very same question on this forum and was told,

1) it's a harley get used to it
2) buy earplugs
3) wear a helmet

I love my Harley and wouldn't get anything else, but it it is a little hard to get used to it sounding like a Ford diesel. I've had people tell me they tried throwing money at it replacing lifters with no change. The only answer I can come up with is I wear a 3/4 helmet and keep the radio loud
  #8  
Old 08-04-2010, 04:54 PM
sduhn sduhn is offline
New Member
Thread Starter
Join Date: Aug 2009
Location: Spruce Grove AB. Canada
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Cadman311....no, the oil level is where it's suppose to be and I have only used HD oil in it...and it's not synthetic...I was told engine noise would increase if I used synthetic.
  #9  
Old 08-04-2010, 04:56 PM
rstekeur's Avatar
rstekeur rstekeur is offline
Road Captain
Join Date: Jun 2008
Location: Ft Myers FL
Posts: 549
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by JRK5892 View Post
20oz lucas oil treatement wiht your oil changes... goodbye sound! works great i have a built motor and mine even went away
I was checking on the lucas oil treatment and found this link

http://www.bobistheoilguy.com/images/lucas/lucas.htm

Last edited by rstekeur; 08-04-2010 at 05:15 PM.
  #10  
Old 08-04-2010, 04:59 PM
sduhn sduhn is offline
New Member
Thread Starter
Join Date: Aug 2009
Location: Spruce Grove AB. Canada
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Also a buddy was telling me that for '10' HD changed the springs in the lifters to a stronger spring so there's less valetrain noise, so I'm wondering if a person put lifters in from a 10 if that would quieten it down.....
 
 
 
P
Closed Thread

Related Topics
Thread Thread Starter Forum Replies Last Post
Rocker Lockers Installed Cliff R Touring Models 52 10-04-2015 12:59 PM
unusual noise on an 2014 FLHX and 2014 FLHR chuckie Touring Models 3 10-03-2015 12:12 PM
Rocker Lockers installed Cliff R Screamin Eagle CVO Models 2 09-14-2015 07:38 PM
clacking throttle plate ? Al buquerque Ignition/Tuner/ECM/Fuel Injection 3 06-30-2014 10:15 PM
Clacking noise? Trucker1906 Engine Mechanical Topics 2 06-21-2014 05:24 PM


Tags
09, 67, andrews, cam, clearance, davidson, excessive, glide, harley, lash, noise, noisy, road, sound, train, valve, vrsc

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 09:08 AM.