cam chain loose - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
New Member Introductions First Post?
Make your big introduction here.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 20 (permalink) Old 03-24-2010, 02:43 PM Thread Starter
Junior Member
 
Join Date: Mar 2010
Location: wisc.
Posts: 10
iTrader: (0)
 
cam chain loose

after honing front cylinder on my daugthers 86 vulcan 750 I lined up the timing marks and reassembled the engine and now the upper cam chain is not always tight and it seems like it wants to almost jump a tooth but does stay in time when I hand turn the engine. I only did the front cylinder because the back one had good compressionand then a mechanic told me the front one has a compression release so it will be less.
any help would be greatly appreciated
sqeezer
sqeezer is offline  
Sponsored Links
Advertisement
 
post #2 of 20 (permalink) Old 03-24-2010, 04:22 PM
The Professor
 
lance328's Avatar
 
Join Date: Feb 2008
Location: BUFORD, GEORGIA
Posts: 3,147
iTrader: (15)
   
Quote:
Originally Posted by sqeezer View Post
after honing front cylinder on my daugthers 86 vulcan 750 I lined up the timing marks and reassembled the engine and now the upper cam chain is not always tight and it seems like it wants to almost jump a tooth but does stay in time when I hand turn the engine. I only did the front cylinder because the back one had good compressionand then a mechanic told me the front one has a compression release so it will be less.
any help would be greatly appreciated
sqeezer
I hope you don't beleive the mechanic you talked to, there is no compression release on the front cylinder.

If you turn the engine clockwise it will cause slack in the upper cam chain, the engine is designed to rotate counterclockwise.

Install MCCT's, link below.

http://www.tocmanufacturing.com/Manu...nTensioner.htm


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
lance328 is offline  
post #3 of 20 (permalink) Old 03-24-2010, 08:03 PM
Members who have donated towards server costs
 
Join Date: Nov 2007
Location: Chandler, Arizona
Posts: 3,026
iTrader: (0)
 
Lance is right, both about there being no compression release, and about the MCCT's (manual cam chain tensioners). I hope you don't have bigger problems, those cam chains can be tricky. Jerry.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
VN750Rider/Jerry is offline  
 
post #4 of 20 (permalink) Old 03-25-2010, 06:42 AM Thread Starter
Junior Member
 
Join Date: Mar 2010
Location: wisc.
Posts: 10
iTrader: (0)
 
thanks for the info. I plan on putting in the mcct this weekend and will let you know how it goes.
thank you again sqeezer
sqeezer is offline  
post #5 of 20 (permalink) Old 04-08-2010, 06:17 AM Thread Starter
Junior Member
 
Join Date: Mar 2010
Location: wisc.
Posts: 10
iTrader: (0)
 
I finaly got mcct's in and it was pretty simple. tighened them just enough to take up most of the slack.Also put in manual gas shutoffs. Had the gas pettcock rebuilt but still let gas leak by. I think this is why I lost compression in one cylinder because the rings may have stuck. Again thanks for the help, both my daughter and I thank you want you to know what a helpfull site this is.
Sqeezer from packerland
sqeezer is offline  
post #6 of 20 (permalink) Old 04-08-2010, 07:00 AM
The Professor
 
lance328's Avatar
 
Join Date: Feb 2008
Location: BUFORD, GEORGIA
Posts: 3,147
iTrader: (15)
   
When you get the engine running bring it to opperating temp the readjust the tensioners, you don't want them too tight.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
lance328 is offline  
post #7 of 20 (permalink) Old 04-08-2010, 02:03 PM
Members who have donated towards server costs
 
Join Date: Nov 2007
Location: Chandler, Arizona
Posts: 3,026
iTrader: (0)
 
When I adjusted mine, I did it with the engine running, and did them both at the same time, from the left side of the bike, the front one with my left hand, and the rear one with my right hand, reaching over the seat. I loosened and tightened them both at once several times, until I had developed a feel for what was going on. I did the adjusting completely by hand, no tools. The only thing I used a wrench for was to tighten the locknuts. You should never need a wrench to tighten the actual adjuster bolts. Jerry.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
VN750Rider/Jerry is offline  
post #8 of 20 (permalink) Old 04-09-2010, 07:15 AM Thread Starter
Junior Member
 
Join Date: Mar 2010
Location: wisc.
Posts: 10
iTrader: (0)
 
how will I know how tight. I used a wrench to tighten the front one because I couldn't tighten them by hand. I also had the valve cover off so I could see the chain. Will this be ok or should I do the finger tight. When I tightened by hand It wouldn't take up the slack.
Thanks sqeezer
sqeezer is offline  
post #9 of 20 (permalink) Old 04-09-2010, 07:51 AM
Senior Member
 
artemis_f0wl's Avatar
 
Join Date: Feb 2009
Location: Columbus Ohio, USA
Posts: 268
iTrader: (2)
 
Send a message via AIM to artemis_f0wl Send a message via Yahoo to artemis_f0wl Send a message via Skype™ to artemis_f0wl
Glad I'm not the only one going through this today.

I just put my new manual tensioners on last night. Haven't done any adjusting because kids were sleeping and I didn't want to wake them, but I will be mucking around with it this evening.

Do I understand correctly that I should tighten the bolts finger tight, then start the bike and bring her up to operating temp before tightening them a little more? Never done anything like this, so I'm a little nervous but you all have helped me so much I'm sure with you guiding me all will be well!

NIL ILLEGITIMUS CARBORUNDUM

Phil aka Art
"Vanessa"
1995 VN 750 (bought as 2nd owner 11/2008)
26,440 miles
MF Battery
Stator replaced (55 Days!)
V&H Cruisers
Relocate rear turn signals
Highwayman Saddlemen bags
Wingerline Highway bars
Ear Shave
Rejet carbs
R/R relocate
Coastered
Kuryakin ISO Duallys all around
HD Heritage seat
12" ape hangers

To Do:
Some sort of new grips
Mirrors
Paint Job- should I do it myself?
artemis_f0wl is offline  
post #10 of 20 (permalink) Old 04-09-2010, 09:39 AM
Members who have donated towards server costs
 
Join Date: Nov 2007
Location: Chandler, Arizona
Posts: 3,026
iTrader: (0)
 
As for how tight, you want them just a hair past the point where the noise stops. Thats why I did mine with the engine running, and did them both at the same time. since they both make the same noise, unless you do them both at the same time, if you still hear noise, you have no idea which one is making the noise. I turned mine in and out (be very careful not to back one to far out while the engine is running, it could break the chain, or allow it to jump teeth. I turned both mine in finger tight before starting the engine) several times, probably more than 20, before I developed a "feel" for what was going on, and just what it took to stop the noise, on both sides, and no more. The TOC tensioners have a large head, and you should not need a wrench to tighten them enough to stop the noise. Aside from hearing the noise, you can feel the vibration in the tensioner bolts, and with your fingers on the bolts (not a wrench), you can not only hear it, but you can feel it in the tensioners, and feel the point where it almost stops. Difficult to explain with words, I have been a mechanic all my life, and have finely developed sense of sound and feel. It takes a while to acquire that. But you should still get it close enough, just don't use a wrench on the tensioners. that not only eliminates the sense of feel, but makes it very easy to overtighten them, due to the leverage of the wrench.


Being extra careful not to overtighten them, the first time, after about a week, I heard a slight noise. I readjusted them, it has now been over 15,000 miles and I haven't heard a sound (other than normal engine noise) I don't know any other way to do it, there is no torque spec, because there is no measurable torque. You will just have to use your best judgement. Jerry.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
VN750Rider/Jerry 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