Toyota Yaris Forums - Ultimate Yaris Enthusiast Site
 

 


 
Go Back   Toyota Yaris Forums - Ultimate Yaris Enthusiast Site > Technical Forums > DIY / Maintenance / Service
  The Tire Rack

Reply
 
Thread Tools Display Modes
Old 01-09-2012, 01:23 AM   #1
lh59
 
lh59's Avatar
 
Drives: 3 dr 1.3 2NZ
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 27
Help with drive belt adjustment

Hi guys,

I just changed my drive belt with a brand new one made by Bosch. It is about half an inch short of the original mark after I tension it. When I start my car this morning, it makes a screeching sound that disappear after about one second. This didn't happen when I drove back in the afternoon. I'm not sure how tight the drive belt need to be.
Do you guys think that I should slacken or tighten it a bit more? I'm quite concern about over tightening the belt and snapping it. By the way, I did the second adjustment for the belt after running it for 5 min. Any help would be greatly appreciated.

Hong
lh59 is offline   Reply With Quote
Old 01-09-2012, 06:40 AM   #2
CTScott
ULTIMATE
 
CTScott's Avatar
 
Drives: 09 5dr LB, 2x 08 3dr LB
Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
Without a tensioning bolt, you have to push the alternator away from the block, while tightening the bolts. A hammer handle is a good tool for doing so, but be very careful about where to push against the block, as the oil control valve is a fragile device if you push against it. To check the tension, you could purchase a belt tension measuring device from an auto parts store and tension it to 7.0 to 8.5 mm (0.28 to 0.33 in.) of deflection. The other way to do it is to simply press against the center of the span between pulleys with one finger. It should be tight enough that it only moves about the amount listed above when poked.
__________________
CTScott is offline   Reply With Quote
Old 01-14-2012, 07:24 PM   #3
lh59
 
lh59's Avatar
 
Drives: 3 dr 1.3 2NZ
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 27
Thank you for your advice Scott. I tension the belt a little bit further this morning and the screeching sound has gone. It is now about 1/8 inch away from the original mark.
lh59 is offline   Reply With Quote
Old 04-02-2012, 03:27 PM   #4
DARKSCOPE001
 
Drives: 2011 Yaris sedan
Join Date: Mar 2012
Location: Pickerington Ohio
Posts: 51
different belt mfrs could vary slightly but I wouldnt think that it would be so much that it would be much more than a minute amount. These belts actually need to be under quite a bit of tension (not guitar string tight ) But when I did serpintine belts on other cars I always got done thought I had it tight enough. Started it up and it would sqeal like a pig. Really cranked her down with a similar idea to CTscott's suggestion. PROBLEM SOLVED!

Also that new belt is going to do alot of streaching as it breaks in. Run it for a bit (1000-3000) Miles and recheck it.

Best luck
Sean Scott
DARKSCOPE001 is offline   Reply With Quote
Old 07-28-2019, 09:56 PM   #5
400 dollar yaris
 
400 dollar yaris's Avatar
 
Drives: 2007 Yaris sedan
Join Date: Nov 2011
Location: Bowling Green, Ohio
Posts: 99
Any one change their belt and then have issues with idle being too high and get codes for timing? When I first changed the belt, I didnt have it tight enough and it would squeal. Next I thightend too much and loosened it a little bit. Any ideas? Check engine light came on while on the highway and I could tell that the rpms werent dropping as fast when I let off the gas. Do I just have the belt too tight or does this seem like another issue? code (p0011). checked the oil, its just below the full line, barely at all. I changed the oil about 4000 miles ago. I could try changning it early, but I always use pennzoil platinum high mileage and a new filter every time.

Let me know your thoughts. Thank you!
400 dollar yaris is offline   Reply With Quote
Old 07-29-2019, 09:01 AM   #6
Leegamer
 
Leegamer's Avatar
 
Drives: No longer own a yaris :(
Join Date: Mar 2012
Location: Ashland, VA
Posts: 680
Isn't the cam position sensor right above the alternator? I've noticed while using a prybar to adjust my alt bracket that it would be pretty easy to smash that.
__________________
I'm a hermit named Lee
Leegamer is offline   Reply With Quote
Old 07-29-2019, 09:47 AM   #7
BLH
 
Drives: 2007 Yaris Sedan
Join Date: Apr 2009
Location: CT
Posts: 271
It does sound like you may have broken the sensor. Others have reported similar things after changing or adjusting the belt.

If the Cheek Engine Light came On and if you have a code reader it should give you more information.
BLH is offline   Reply With Quote
Old 07-29-2019, 03:18 PM   #8
CrankyOldMan
2ZR swap. DO IT! Ask how!
 
CrankyOldMan's Avatar
 
Drives: 09 Meteoric Metallic HB
Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
The cylinder just above the alternator is the oil control valve (as CT stated above), not a sensor. It controls the VVT-i for the intake cam. If you've damaged it, that would definitely throw a P0011 since the timing doesn't respond as the ECU expects it to. The bad news is that they're not cheap to replace from the dealership ($90). The good news is that they're very inexpensive at a self-serve parts yard. Just a 10 mm socket for the retaining bolt and a flat head screwdriver to remove the connector. Maybe 5 minutes to remove one, 10 to replace it if you're slow like me. =)

https://parts.villagetoyota.com/p/To...533021011.html
CrankyOldMan is offline   Reply With Quote
Old 07-29-2019, 08:18 PM   #9
xxcanuckxx
 
Drives: 2015 SE HB
Join Date: Jun 2007
Location: Bond Head Ontario Canada
Posts: 35
I would say they have figured it out for you. Do a search on the forum, I am pretty sure there is a DIY to replace it. It really is a five minute job, and something that almost everyone has had to do the first time they replace their belt.
Also, I have read in almost every Toyota forum I have been in, that aftermarket belts squeal. I don't know why, but mine has squealed after replacing it, anytime I get a dip in RPMs.
Some people suggest the extra cost to get an OEM belt is worth it?

Sent from my SM-G950W using Tapatalk
xxcanuckxx is offline   Reply With Quote
Old 08-01-2019, 09:46 PM   #10
400 dollar yaris
 
400 dollar yaris's Avatar
 
Drives: 2007 Yaris sedan
Join Date: Nov 2011
Location: Bowling Green, Ohio
Posts: 99
Thank you all! I will look into this. I definitely used a prybar to tighten the belt. I'm pretty sure I damaged it. It only came on after driving on the highway after about an hour and a half of driving. I will look into it tomorrow and replace the sensor.
400 dollar yaris is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Belt Tensioner for the Yaris fmicle DIY / Maintenance / Service 25 11-26-2022 11:37 PM
seat belt chime disable? Lewis DIY / Maintenance / Service 19 05-25-2012 04:36 PM
HELP!? HORRIBLE drive home during first REAL Snow in Michigan, paulyd0021 Wheels, Tires and Suspension Forum sponsored by The Tire Rack 15 12-11-2009 08:07 PM
HELP!? HORRIBLE drive home during first REAL Snow in Michigan paulyd0021 General Yaris / Vitz Discussion 32 12-10-2009 01:23 PM
Pinging belt when wet or cold steveh74 Europe (continental) 0 08-22-2009 05:50 AM


All times are GMT -4. The time now is 05:12 AM.




YarisWorld
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.