JDC
Zone Head
Posts: 570
|
posted March 15, 2010 12:02 PM
Odd tapping sound
Went out blasting about today. Came down an off ramp to a stoplight. There was a clacking/tapping sound that seemed on the right side of the bike, as if something were hitting a little. In neutral, the sound increased - decreased with RPM. Oil, etc all showed ok.
Waited for green, and acceled gently to next light, 150 yards away. Tapping was gone and did not return for short return home, 1 1/5 mile and several lights.
I recently put on, 400 miles ago, the extended arms on the lockup clutch gadget from Dave in Fla. I plan on removing side cover and checking into that, but are there any other things I should also consider?
  
|
Shane661
Needs a life
Posts: 11494
|
posted March 15, 2010 12:09 PM
Perhaps the header flanges?? They will tap like hell if loose.
|
oilfieldtrash
Zone Head
Kawasaki enthusiast
Posts: 506
|
posted March 15, 2010 12:14 PM
 Edited By: oilfieldtrash on 15 Mar 2010 20:29
Join the club. I have the tapping sound also. I've asked about it and no one seems to know. There are several guys with the same issue. I've read that one guy took it back to Kawasaki they tore down the motor and nothing was wrong. They put it back together and it still had it. Whenever I had my bike dynoed I asked the guy to take a look at mine. He said if something was wrong in the motor it wouldn't come and go. It would just get worse and eventually break. He said sometimes they just make odd noises.
I couldn't explain the sound any better than you. It's like you're describing the tapping sound on my bike. I've chalked it up to the zx14 motor just makes some strange noises sometimes. If you find something wrong let me know.
____________
'09 zx6r lime green bone stock
'07 white S.E. ZX-14 sold
|
zixxer14
Pro
Damn that was Quick
Posts: 1233
|
posted March 15, 2010 12:49 PM
Possibly cam chain tensioner loosing oil pressure or wearing out?
|
oilfieldtrash
Zone Head
Kawasaki enthusiast
Posts: 506
|
posted March 15, 2010 01:02 PM
quote:
Possibly cam chain tensioner loosing oil pressure or wearing out?
Mine makes the same noise and has 5800 all street miles. Would it wear out that fast?
____________
'09 zx6r lime green bone stock
'07 white S.E. ZX-14 sold
|
speedgene
Zone Head
Posts: 996
|
posted March 15, 2010 01:18 PM
Edited By: speedgene on 15 Mar 2010 21:19
Tight valve lash would make that kind of noise. Got the bike real hot? Cooled the bike down again and it goes away? Are you pounding the valves in the head? Check valve clearance. The more a lash is lose, the quieter she is.
Every time a piston changes direction, it slaps-slaps like a valve tick. This only happens when the skirt is scored [after you check valve clearances]. The material lost at the skirt expands the clack or the slap or tick is present all the time. This is due to lost skirt clearances.
Tick happens hot. Slap is constant. Tick comes and goes is not a piston skirt per say, but more a tight valve.
____________
E-tard
|
oilfieldtrash
Zone Head
Kawasaki enthusiast
Posts: 506
|
posted March 15, 2010 01:29 PM
Would a tight valve lash hurt the bike? It seems like mine only makes ticking when warmed up. It's not constant.
____________
'09 zx6r lime green bone stock
'07 white S.E. ZX-14 sold
|
INTIMIDA2OR
Needs a life
RED rider!
Posts: 13081
|
posted March 15, 2010 01:38 PM
It's either a normal sound or your exhaust isn't loud enough take your pic lol! 
Unless it's like mine and when I go blastin' sometimes the CCT will start rattling after .
What worries me is it's rattling while I'm at speed and don't hear it till I'm stopped 
Doesn't do it all the time but it did it the other day.
I need to get a solution for that soon!
____________
'06 Passion Red ZX-14
*Lee*
|
JDC
Zone Head
Posts: 570
|
posted March 15, 2010 02:33 PM
Edited By: JDC on 15 Mar 2010 22:35
Tomorrow I'll take it for a 120 mile plus ride in the morning and see what pops out! I'll either make it home or be trailered home. Then remove the clutch cover and peak -n- change the oil.
Never had this sound, and gone right after changing N to 1st then 2nd gear -n- back to N by the next stop light. I'm thinking one of the extended clutch lockup arms... not settling back into place and clattering.
Maybe I should have not installed that slightly used Toyota clutch accelerator lock-up part!
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted March 15, 2010 02:40 PM
my lock up taps untill it moves fast enough to have the arms "out" at slow slow speeds they fall toward the center when they are at the top of the clutch. if your tapping happens when stopped in gear, its not the lock up as the arms only move when the trans shaft moves.
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
speedgene
Zone Head
Posts: 996
|
posted March 15, 2010 03:25 PM
quote:
Would a tight valve lash hurt the bike?
Yes.
Too Tight = Less time on the valve seat to cool off. Burns the valve, which causes those pie cut cracks to drop out of the valve circumference, thus causes a loss of compression down the road you let it tick and neglect it.
Too Loose = More time to cool off. Builds carbon onto the valve where it cannot burn off. Loss of [time] to speed up the action; the valve is sitting too long during the critical intake stroke only has so much degree time.
Valve Lash In the Middle [book] Spec = Not loose, not tight, burns off carbon just right.
Book Loose = Still within spec. Shim adjustment Intervals extended out. Performance sent to a lower grunt percentile, with an ever so slight loss of top end, give or take maybe a 2mph difference; you want to enter the 200mph club [you then adjust to the tight side].
____________
E-tard
|
JDC
Zone Head
Posts: 570
|
posted March 15, 2010 03:40 PM
quote:
my lock up taps untill it moves fast enough to have the arms "out" at slow slow speeds they fall toward the center when they are at the top of the clutch. if your tapping happens when stopped in gear, its not the lock up as the arms only move when the trans shaft moves.
How about in neutral stopped, 1.1K RPM?
|
SLVR_BLT
Zone Head
Chicken Strips!
Posts: 589
|
posted March 15, 2010 03:56 PM
quote:
Tight valve lash would make that kind of noise. Got the bike real hot? Cooled the bike down again and it goes away? Are you pounding the valves in the head? Check valve clearance. The more a lash is lose, the quieter she is.
Every time a piston changes direction, it slaps-slaps like a valve tick. This only happens when the skirt is scored [after you check valve clearances]. The material lost at the skirt expands the clack or the slap or tick is present all the time. This is due to lost skirt clearances.
Tick happens hot. Slap is constant. Tick comes and goes is not a piston skirt per say, but more a tight valve.
I think if the valves were tight it would make less noise as the valves would always be preloaded by the cam. The obvious is a loss of power as a tight valve will likely cause exhaust to escape during the compression stroke. If you keep it that way you could potentially burn a valve. Excessive lash causes the ticking noise. My gixxer makes a clacking/ticking noise when its cold (it gets lighter as it warms up but still there) its no where near the miles required for valve adjustment but it started to make that noise once i got to about 10K miles, i have about 14K now and its still there. 06-07 were often commented on their valve train noise which is why in 08+ they put a urethane lining in the valve covers to quiet things down.
____________
2006 Kawasaki ZX14, Muzzy Full Titanium Exhaust w/ Carbon Can, PCIII, BMC Street Filter
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted March 15, 2010 04:58 PM
quote:
quote:
my lock up taps untill it moves fast enough to have the arms "out" at slow slow speeds they fall toward the center when they are at the top of the clutch. if your tapping happens when stopped in gear, its not the lock up as the arms only move when the trans shaft moves.
How about in neutral stopped, 1.1K RPM?
in neutral the front trans shaft can spin without turning the back one. that means the hub can spin, the pressure plate and snowflake are in sync with the hub and at low rpm you will hear the arms clicking around, rev it up and they go faster and it gets quiet. pull the oil fill cap and watch, just mind the drips of oil flung off the arms
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
smokinZX14
Needs a life
Posts: 10197
|
posted March 15, 2010 05:10 PM
My 06 was allways had a bit of piston slap ..My 06 never had any injector or valve noise .. Now my 09 has no pistons slap, No cam chain noise even on cold start up ...BUT the injectors are loud as hell at idle when warmed up ! .. The 08 and 09 has different pistons, padded Valve cover and different injectors than the 06 07 models ..I also believe the cam chain adjustor also was changed ( diiferent part number so i'm told ) ..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
|
JDC
Zone Head
Posts: 570
|
posted March 15, 2010 05:57 PM
Edited By: JDC on 16 Mar 2010 02:18
Took it back out for about 30 minutes, 15 mins on highway at fast run ups and then quick speed drops, off and on ramps.. stop lights, nothing.
Back as quiet as it has been these past two years.
Now, that tapping/clatter/rattle is not the normal quiet tics and taps form the engine, etc. It was clearly something new, very noticeable and noisy, which I have never heard. At 1050 idle, it was not tapping that fast. The tap had a 'double' sound/tap/clatter to it, almost like something had come loose, and occured maybe twice a sec, if that fast.
I'm going to check out the lock-up tomorrow as I change the oil. With the clatter I heard I'd think if it was the lockup arm it was tapping against something as it went around.
|
INTIMIDA2OR
Needs a life
RED rider!
Posts: 13081
|
posted March 15, 2010 06:12 PM
____________
'06 Passion Red ZX-14
*Lee*
|
JDC
Zone Head
Posts: 570
|
posted March 16, 2010 10:14 PM
I haven't been able to repeat it. 120 miles today, 30 minutes yesterday, some strong blasting up full PSI and speed, quiet as a mouse and what I've known since I've had this bike.
Morning oil change to 10-30 M1 and lock-up check in the A.M.. Will add scavange pump check -tks Bad. This was not a tic or tap, like any auto tappit, pretty quite taps and tics.. normal. Was something more like a loose thing, or thing outta place, clatter/rattle/?, repeating 1-2 X/sec - no more, would increase some as throttle reved up a bit. Gone by next stop light. Not repeating later yesterday, nor today. Starts up perfectly.
I hate gremlins.
|
INTIMIDA2OR
Needs a life
RED rider!
Posts: 13081
|
posted March 17, 2010 09:55 AM
It tapping sound probably snapped of and got grounded into your oil pan.
The gremlin died a horrible twitching death! Lmao!
____________
'06 Passion Red ZX-14
*Lee*
|
JDC
Zone Head
Posts: 570
|
posted March 17, 2010 07:06 PM
Edited By: JDC on 18 Mar 2010 03:07
Nope all around. Oil change and removed clutch cover. Lockup just fine, no indications of arm contact with anything-function perfectly. Checked turbo evac pump, hose connections, etc.. all tight.
Can not get it to repeat clattering.
So will wait for it to drop on me.
|
INTIMIDA2OR
Needs a life
RED rider!
Posts: 13081
|
posted March 17, 2010 11:43 PM
quote:
Nope all around. Oil change and removed clutch cover. Lockup just fine, no indications of arm contact with anything-function perfectly. Checked turbo evac pump, hose connections, etc.. all tight.
Can not get it to repeat clattering.
So will wait for it to drop on me.
Did you make sure your helmet strap was tight? Sometimes it's the loose nut behind the bars
____________
'06 Passion Red ZX-14
*Lee*
|
JDC
Zone Head
Posts: 570
|
posted March 18, 2010 06:24 AM
thats funny... and probably true
|
LAB3
Needs a job
Posts: 2977
|
posted March 19, 2010 04:11 AM
quote:
My 06 was allways had a bit of piston slap ..My 06 never had any injector or valve noise .. Now my 09 has no pistons slap, No cam chain noise even on cold start up ...BUT the injectors are loud as hell at idle when warmed up ! .. The 08 and 09 has different pistons, padded Valve cover and different injectors than the 06 07 models ..I also believe the cam chain adjustor also was changed ( diiferent part number so i'm told ) ..
Please let us know if you ever install a new part# CCT in a 2006/2007 14 and if the the noise on start up goes away. I know the noise for a spit second on cold start is no big deal. I am a old school and just Hate this on a new bike (for me). Got my 2007 last year and was looking at Carpenter Racing ZX12 modded CCT he sells.
Thanks
Louis
|
|
|
HOME
NEW TOPIC