Valve and cam timing question - Page 5 - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum
 8Likes
Reply
 
LinkBack Thread Tools
post #41 of 76 (permalink) Old 03-01-2019, 07:39 PM Thread Starter
Honda Addict
 
bcsman's Avatar
 
Join Date: Aug 2018
Location: Michigan Thumb
Posts: 119
Here's a better picture of the tensioner, also to me it looks like the chain is stretched and the tensioner is extended about as far as it can. Also seems the chain is not fully engaged in the cam sprocket also from the loose chain.
Attached Thumbnails
Click image for larger version

Name:	Tensioner.jpg
Views:	26
Size:	91.9 KB
ID:	41355  

1998 Honda Foreman 450ES`

Last edited by bcsman; 03-01-2019 at 07:41 PM. Reason: add
bcsman is offline  
Sponsored Links
Advertisement
 
post #42 of 76 (permalink) Old 03-01-2019, 09:56 PM
Honda Lover
 
Join Date: Jul 2018
Location: WV
Posts: 340
Yes, the cam gear doesn't look to be worn badly, so the chain must just be hanging there.


Looks like the clutch basket has to come off in order to remove the chain.
Moccasin Ranger is offline  
post #43 of 76 (permalink) Old 03-01-2019, 10:46 PM Thread Starter
Honda Addict
 
bcsman's Avatar
 
Join Date: Aug 2018
Location: Michigan Thumb
Posts: 119
Quote:
Originally Posted by Moccasin Ranger View Post
Yes, the cam gear doesn't look to be worn badly, so the chain must just be hanging there.


Looks like the clutch basket has to come off in order to remove the chain.
Yes both clutch assemblies need to be removed then the 2 bolts from the cam sprocket. I might just replace the sprocket while in there, $30 for OEM. To remove and change the chain tensioner the head must be pulled.

1998 Honda Foreman 450ES`

Last edited by bcsman; 03-01-2019 at 10:47 PM. Reason: add
bcsman is offline  
 
post #44 of 76 (permalink) Old 03-02-2019, 01:10 PM Thread Starter
Honda Addict
 
bcsman's Avatar
 
Join Date: Aug 2018
Location: Michigan Thumb
Posts: 119
So yes the head has to come off to remove the chain tensioner. Right now it's fully extended and I imagine to put a new chain on it will have to be retracted. And to do that it must come out. So for now here's what I plan on ordering:

timing chain
cam sprocket
front cover gasket
head gasket, not sure if that's all for that
one way clutch bearing, engine would spin after shutting off

think before I go any further will wait until my parts get here so I can remember how it goes back together...

1998 Honda Foreman 450ES`

Last edited by bcsman; 03-02-2019 at 01:33 PM. Reason: add
bcsman is offline  
post #45 of 76 (permalink) Old 03-02-2019, 06:35 PM
Administrator
 
toodeep's Avatar
 
Join Date: Aug 2007
Location: south dakota
Posts: 12,942
Garage
All you have to do is remove the header pipe to retract the tensioner. There are holes in the head and cylinder to stick a screwdriver through to do it.

I've replaced bad tensioners with just removing the portion of cooling fin above it.

Sent from my SM-G965U using Tapatalk



2007 420FM (475cc, 27x12x12 Mudbugs) ---------- 1995 300FW (webcamshaft, 350 rear end)
2008 420FE (26x9x12 BearClaws) -------------------
1988 300 (old stock machine, nothing fancy)
2009 420FA (25x8/10x12 BearClaw HTR) ---------
1987 350D (work in progress)

toodeep is offline  
post #46 of 76 (permalink) Old 03-02-2019, 11:59 PM Thread Starter
Honda Addict
 
bcsman's Avatar
 
Join Date: Aug 2018
Location: Michigan Thumb
Posts: 119
Quote:
Originally Posted by toodeep View Post
All you have to do is remove the header pipe to retract the tensioner. There are holes in the head and cylinder to stick a screwdriver through to do it.

I've replaced bad tensioners with just removing the portion of cooling fin above it.

Sent from my SM-G965U using Tapatalk
Will take a look tomorrow, thanks for the heads up...no pun intended..lol already had the head removed, cleaned, and lapped in the shop so if I dont have to that would be good

hopefully I can get the large phillips head loose to retract

1998 Honda Foreman 450ES`

Last edited by bcsman; 03-03-2019 at 12:01 AM. Reason: add
bcsman is offline  
post #47 of 76 (permalink) Old 03-03-2019, 12:56 PM Thread Starter
Honda Addict
 
bcsman's Avatar
 
Join Date: Aug 2018
Location: Michigan Thumb
Posts: 119
So I have the exhaust pipe loosened and out of the way and there is access to the tensioner screw. Is there any advise on the best way to loosen it, something tells me it's gonna be on there pretty tight. I have access to a tool that you can tap on with a hammer while trying to turn but doesn't look like there is room for that to use. I sprayed some penetrating juice on it and gonna let it sit for awhile. I don't want to strip the phillips screw if possible.....

1998 Honda Foreman 450ES`
bcsman is offline  
post #48 of 76 (permalink) Old 03-03-2019, 01:07 PM
Honda Lover
 
Join Date: Jul 2018
Location: WV
Posts: 340
Quote:
Originally Posted by bcsman View Post
So I have the exhaust pipe loosened and out of the way and there is access to the tensioner screw. Is there any advise on the best way to loosen it, something tells me it's gonna be on there pretty tight. I have access to a tool that you can tap on with a hammer while trying to turn but doesn't look like there is room for that to use. I sprayed some penetrating juice on it and gonna let it sit for awhile. I don't want to strip the phillips screw if possible.....

Can you use a long extension on the impact driver? A swivel with extension? Sometimes just a little bump is enough to break them loose. Maybe find the right phillips bit and give it a try by hand, it may just come loose. Number one is, don't strip the head. A phillips bit in a socket with 1/4" drive ratchet?



It's a shame they had the head off and didn't get eyes on the timing chain marks. Can you see a new head gasket on there that proves they removed the head?
Moccasin Ranger is offline  
post #49 of 76 (permalink) Old 03-03-2019, 01:07 PM
Administrator
 
toodeep's Avatar
 
Join Date: Aug 2007
Location: south dakota
Posts: 12,942
Garage
A couple good taps on the handle of the screwdriver will usually be enough to break the bond. It's just a small oring that holds it the most so if you have a good screwdriver and the head is clean I would just try to loosen it first.

Sent from my SM-G965U using Tapatalk



2007 420FM (475cc, 27x12x12 Mudbugs) ---------- 1995 300FW (webcamshaft, 350 rear end)
2008 420FE (26x9x12 BearClaws) -------------------
1988 300 (old stock machine, nothing fancy)
2009 420FA (25x8/10x12 BearClaw HTR) ---------
1987 350D (work in progress)

toodeep is offline  
post #50 of 76 (permalink) Old 03-03-2019, 01:10 PM Thread Starter
Honda Addict
 
bcsman's Avatar
 
Join Date: Aug 2018
Location: Michigan Thumb
Posts: 119
Ha I got it loose, I got a large screwdriver down thru the holes on the screw and thought hey if I tap on the screwdriver end while trying to turn it should be the same thing and by golly I did get it loose!! Now I have to find a long enough screwdriver to get inside to retract the shaft. Thanks you so much for your assistance very much appreciated. So hopefully I won't need to pull the head off saving me time and effort.....

1998 Honda Foreman 450ES`
bcsman is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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



Similar Threads
Thread Thread Starter Forum Replies Last Post
09 Rubicon wiped out cam and intake cam follower. 126hrs 600mi firemedic1786 Rubicon 500 6 10-31-2018 03:38 PM
Cam timing Big Ron Foreman 450 5 11-24-2011 11:40 AM
Cam Chain adjustment and Valve Clearance smarks2563 Honda Recon 3 02-09-2011 11:58 AM
cam timing trx400fw Honda Recon 1 12-21-2008 05:09 PM
cam timing sljim Foreman 450 2 02-21-2008 07:56 PM

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