Engine knock - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Engine / Exhaust / Cooling
\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
engine or exhaust, discuss it here!

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 21 (permalink) Old 09-22-2006, 05:22 PM Thread Starter
 
Join Date: Sep 2006
Posts: 4
iTrader: (0)
 
Engine knock

hello all,
i have a 2003 with 14k...internal noise started about 3 months ago, then went away for awhile, now back again...sounds like metal ball in paint can, a rock in the motor (know not possible)/noise is pretty loud....coming from near top of rear cylinder...gets louder above 1800 rpm, goes totally away after engines warms up..approx. 15-20 minutes. no other issues noted, other than idle is off a bit when it is cold. any help would be appreciated.
njeagles is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old 09-22-2006, 06:02 PM
Members who have donated towards server costs
 
tankist's Avatar
 
Join Date: Jun 2006
Location: Chicagoland
Posts: 737
iTrader: (2)
 
Send a message via Skype™ to tankist
ACCT dieseling by a chance?

Ride Safe

Anton.
tankist is offline  
post #3 of 21 (permalink) Old 09-22-2006, 06:10 PM Thread Starter
 
Join Date: Sep 2006
Posts: 4
iTrader: (0)
 
should I use "Grambo Trick" to fix??
njeagles is offline  
 
post #4 of 21 (permalink) Old 09-22-2006, 06:27 PM
Once Banned
 
cegodsey's Avatar
 
Join Date: Jun 2006
Location: Bryant, Arkansas
Posts: 2,125
iTrader: (0)
 
That's about when my 2000 started doing it. Try Grambo, then if that doesn't work, try rebuilding the ACCT's. Use the TOC manufacturing instructions from the links page, but use your current springs. I'm not really convinced that the TOC springs are any better unless you have a lot more miles than 14K. Make sure you get the preload accomplished. Doesn't have to be a full turn, but should be at least a half.

2000 A16
Drilled baffles
$65 leather saddle bags
Kuryaken grips
relocated R/R
de-badged
25,000+ original owner miles
cegodsey is offline  
post #5 of 21 (permalink) Old 09-22-2006, 06:34 PM
Members who have donated towards server costs
 
Sky Rider's Avatar
 
Join Date: Jun 2006
Location: Corpus Christi, Texas
Posts: 1,647
iTrader: (0)
 
I agree with cegodsey. It sounds like the ACCTs. I can't vouch for the rebuild but it does make sense if the Grambo trick doesn't work.

Jim W
93 VN 750 "Ursula"
Moved R/R 08Sep06
R/R rewire 17Feb07
New R/R, Installed 14Jun08
New Stator installed 10 Jun08
Maintenance Free Battery 12Jan08
21480 Miles
VROC #8542
Sky Rider is offline  
post #6 of 21 (permalink) Old 09-22-2006, 08:38 PM
 
Join Date: Sep 2006
Posts: 5
iTrader: (0)
 
I just replaced the ACCT on my '96 750 Vulcan. $70.00 for the part from the local dealer. But now mine is making "rattling" sound in the front cylinder. It goes away after about 30 minutes. Maybe lifters ? I don't have a clue at this point which is why I am here. Any suggestions would be great.

Thanks......
RdTecBiker is offline  
post #7 of 21 (permalink) Old 09-22-2006, 10:48 PM
rontaub
 
rontaub's Avatar
 
Join Date: Sep 2006
Location: rome wi
Posts: 6
iTrader: (0)
 
If ACCT is Automatic cam chain tensioner then I agree. I had mine replacedby the dealer at 5800 miles and it got rid of the ticking noise that was there when the engine is cold.
rontaub is offline  
post #8 of 21 (permalink) Old 09-23-2006, 11:47 AM Thread Starter
 
Join Date: Sep 2006
Posts: 4
iTrader: (0)
 
thx all..the grambo trick worked..however, i would like to replace the acct to ensure problem does not come back anytime soon.. do you recommend rebuilding, getting new unit from dealer, or is there aftermarket that fairs better??...thx
njeagles is offline  
post #9 of 21 (permalink) Old 09-23-2006, 01:05 PM
 
Join Date: Feb 2006
Posts: 277
iTrader: (1)
 
i got a pair of new old stock ACCT's from ebay for $40 and ordered the TOC springs and rebuilt mine at 11,000 miles used a turn of preload. if the plunger isn't binding or worn, i don't think you need a total replacement, just springs will do wonders
free wheel-e is offline  
post #10 of 21 (permalink) Old 09-23-2006, 01:54 PM
Members who have donated towards server costs
 
Sky Rider's Avatar
 
Join Date: Jun 2006
Location: Corpus Christi, Texas
Posts: 1,647
iTrader: (0)
 
The springs are what tend to weaken as the bike sits for long periods of time. You can either do the mod to the OEM springs or order the TOC springs and rebuild from there. As long as the plunger is not worn and the chains not stretched beyond their limit, all should be well.
BTW, there are 2 ACCTs, one for each cylinder.
If you want to replace them with OEM ACCTs, go either Bike Bandit (a bit more expensive but faster and cheaper shipping) or Ron Ayers (less up front cost but takes longer to get to you and shipping is more).
www.bikebandit.com
www.ronayers.com

Jim W
93 VN 750 "Ursula"
Moved R/R 08Sep06
R/R rewire 17Feb07
New R/R, Installed 14Jun08
New Stator installed 10 Jun08
Maintenance Free Battery 12Jan08
21480 Miles
VROC #8542
Sky Rider is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome