Notices
Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.

Timing belt tension issues

Old Mar 17, 2024 | 03:58 PM
  #1  
Exsubie22's Avatar
Thread Starter
Newbie
 
Joined: Aug 2010
Posts: 95
Likes: 1
From: PA
Timing belt tension issues

What's going on evom, I know this question has been asked here. But im struggling with proper tbelt tension. I've tried this all the ways and none of them seem to get me where I need to be.
I can get the belt after 6 rotations and letting it sit for 30mins or so I can the pin back in there's a little more drag than I would like. I've used the all thread rod to get the correct tension and also used the method of getting the pin in the tensioner and using the two prong tool to get proper tension then tightening, everything seems to be fine the pin moves freely as I'm tightening it but once I do 2-6 rotations the drag to put the pin back in seems like a lot. Not to the point that it doesnt go back in at all..

Also went back to it this afternoon and it appeared the pin went right in after sitting for a few days. This seems to be the only part that is getting me stumped. I want to make sure the belt has its proper tension. If anyone could help guide me, that would be great.
Reply
Old Mar 19, 2024 | 03:57 PM
  #2  
mitsuatb's Avatar
Evolved Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (6)
 
Joined: Jan 2004
Posts: 516
Likes: 55
The 9 has a OEM Service Manual section on timing belt install. You need a torque wrench and the tool for the tension pulley. The torque is set with the rod locking the arm in position. Then rod is removed engine turned twice, wait time allowed to happen and free movement of the G pin is expected. If you spin the engine 6 times let it sit over night ect you are making the test invalid. The tensioner is designed to move with temp and slack changes. All you are doing is getting it in range. After that it is automatic. If it stayed always in the same position it would be broken or could have been a sold bar and cheaper to make.
Reply
Old Mar 20, 2024 | 10:35 AM
  #3  
Kevin.'s Avatar
EvoM Community Team Leader
15 Year Member
Photogenic
Liked
Community Favorite
iTrader: (7)
 
Joined: Oct 2009
Posts: 768
Likes: 148
From: PHL
Are you replacing all timing components or just the belt?
Reply
Old Mar 21, 2024 | 05:04 AM
  #4  
Exsubie22's Avatar
Thread Starter
Newbie
 
Joined: Aug 2010
Posts: 95
Likes: 1
From: PA
Originally Posted by Kevin.
Are you replacing all timing components or just the belt?
All timing components are new.
Reply
Old Mar 21, 2024 | 05:07 AM
  #5  
Exsubie22's Avatar
Thread Starter
Newbie
 
Joined: Aug 2010
Posts: 95
Likes: 1
From: PA
Originally Posted by mitsuatb
The 9 has a OEM Service Manual section on timing belt install. You need a torque wrench and the tool for the tension pulley. The torque is set with the rod locking the arm in position. Then rod is removed engine turned twice, wait time allowed to happen and free movement of the G pin is expected. If you spin the engine 6 times let it sit over night ect you are making the test invalid. The tensioner is designed to move with temp and slack changes. All you are doing is getting it in range. After that it is automatic. If it stayed always in the same position it would be broken or could have been a sold bar and cheaper to make.
some of the things mentioned in your post aren't making sense. But I will give the fsm another try, not the easiest to get a torque wrench in there.

Only thing that doesn't make sense in your post is the rod locking the arm in place. Doesn't state anywhere in the fsm about that.
Reply
Old Mar 21, 2024 | 09:28 AM
  #6  
Kevin.'s Avatar
EvoM Community Team Leader
15 Year Member
Photogenic
Liked
Community Favorite
iTrader: (7)
 
Joined: Oct 2009
Posts: 768
Likes: 148
From: PHL
There are warnings for tightening the tension rod tool too quickly. It takes fine adjustment and you can damage a hydraulic tensioner if you screw in too quickly.

Follow Boosted Film's videos they are great visuals. Apply the right swing tension on the timing tensioner pulley till the grenade pin is loose and you should have the right tension. Spin 6 revs and wait 30 mins. If the pin is still loose, send it.

Reply
Old Mar 21, 2024 | 11:04 AM
  #7  
Exsubie22's Avatar
Thread Starter
Newbie
 
Joined: Aug 2010
Posts: 95
Likes: 1
From: PA
Originally Posted by Kevin.
There are warnings for tightening the tension rod tool too quickly. It takes fine adjustment and you can damage a hydraulic tensioner if you screw in too quickly.

Follow Boosted Film's videos they are great visuals. Apply the right swing tension on the timing tensioner pulley till the grenade pin is loose and you should have the right tension. Spin 6 revs and wait 30 mins. If the pin is still loose, send it.

https://www.youtube.com/watch?v=SRQr6Bdup-c
I have followed this to a T. Only thing this video doesn't state is how to get proper tension. I did have a bad tensioner oem or i broke it.. but i got a gates and now i cannot get the gates one to do what I want..
Reply
Old Mar 21, 2024 | 12:05 PM
  #8  
Kevin.'s Avatar
EvoM Community Team Leader
15 Year Member
Photogenic
Liked
Community Favorite
iTrader: (7)
 
Joined: Oct 2009
Posts: 768
Likes: 148
From: PHL
Originally Posted by Exsubie22
I have followed this to a T. Only thing this video doesn't state is how to get proper tension. I did have a bad tensioner oem or i broke it.. but i got a gates and now i cannot get the gates one to do what I want..
mitsuatb is talking about the torque wrench on page 18 to take up the slack and apply tension to the pulley. Most wouldn't trust a gates auto tensioner and use OE but that's what I've gathered and trusted over the years.

If you're close enough to southeast PA I'd be willing to lend a hand if interested.
Attached Files
File Type: pdf
GR00002400-11B.pdf (4.80 MB, 0 views)
Reply
Old Mar 21, 2024 | 02:56 PM
  #9  
Exsubie22's Avatar
Thread Starter
Newbie
 
Joined: Aug 2010
Posts: 95
Likes: 1
From: PA
Originally Posted by Kevin.
mitsuatb is talking about the torque wrench on page 18 to take up the slack and apply tension to the pulley. Most wouldn't trust a gates auto tensioner and use OE but that's what I've gathered and trusted over the years.

If you're close enough to southeast PA I'd be willing to lend a hand if interested.
Sent you a pm
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jrod740
Evo Engine / Turbo / Drivetrain
7
Jun 27, 2014 02:45 PM
cleartitleskate
04-06 Ralliart Engine/Drivetrain
1
Sep 6, 2009 12:43 AM
Nevonate
Evo Engine / Turbo / Drivetrain
19
May 26, 2008 12:07 PM
cutieone
Evo How To Requests / Questions / Tips
4
Jan 22, 2006 07:24 PM
JasonS
Evo Engine / Turbo / Drivetrain
4
Oct 13, 2005 07:28 AM


Thread Tools
Search this Thread

All times are GMT -7. The time now is 11:06 PM.