Timing belt replacement

Tiny
DDMORRIS
  • MEMBER
  • 2007 HYUNDAI ACCENT
  • 1.6L
  • 4 CYL
  • FWD
  • MANUAL
  • 175,000 MILES
What is the correct way to align the camshafts in the head prior to putting the timing belt back on. And I need torque specs for this job. Head, intake, camshaft caps, harmonic balancer etc.
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Sunday, July 27th, 2014 AT 2:35 PM

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Tiny
HMAC300
  • MECHANIC
  • 48,606 POSTS
Here are pics of cam and crank piston has to be tdc on compression stroke. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Sunday, July 27th, 2014 AT 3:43 PM
Tiny
BECKYBROWN
  • MEMBER
  • 1 POST
  • 2007 HYUNDAI ACCENT
Engine Mechanical problem
2007 Hyundai Accent 4 cyl Two Wheel Drive Automatic 93K miles

My car suddenly stopped this morning. AAA towed it to pepboys where I was told the timing belt was broken. The tech went on to say that accent's have interfrence engines, and a portion of the engine would need to be moved, opened? To get to the timing belt and that would involve possibly needing to replace gaskets, valves, cylinder heads and re-phasing engine. The mechanic said if it were his car he would'nt do it. Too expensive. Pepboys estimate is 2500. Could you possibly verifiy what pepboys is telling me? Basicly is this true? PLEASE & Thank U
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
BARRACKVILLE
  • MEMBER
  • 8 POSTS
Call your Hyundai dealer it may be under warranty 10 years or 100,000 miles if you are the original owner.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
GNELMS
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  • 1 POST
  • 2007 HYUNDAI ACCENT
  • 120,000 MILES
My timing belt broke and bent 6 valves! My mechanic got it fixed and put back together but it won't idle down from 1800 rpm. What could be the problem in your professional opinion?
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Vacuum leak, idle control valve or throttle body

you mean he cannot fix this?

Roy
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
ELJEFFE11234
  • MEMBER
  • 1 POST
  • 2007 HYUNDAI ACCENT
  • 98,000 MILES
I have a 2007 hyundai accent. The timing belt went out and my nephew replaced it. When I try to drive it if I put even medium pressure of the gas pedal its like it goes into neutral and the rpms go way up before it changes gears. I don't hear any knocking.

I was going about 35 mph when the belt went out. I knew what it was right away and just tried to start it twice. I don't believe the belt had ever been changed and when he took it off there were hardly any teeth left and it was pretty rotted.

Love this site :-)
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
DRCRANKNWRENCH
  • MECHANIC
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The motor is more than likely damaged as the pistons probably hit the valves and bent them when the timing belt failed. Just a valve job and new timing belt will fix it.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
DEANO20021
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  • 1 POST
  • 2005 HYUNDAI ACCENT
  • 61,000 MILES
Belt has lost teeth and no longer turns need to know if I need to pull the head and if not the timing marks please.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
The head will have to come off, this is an interferance engine ands you will have bent a valve or two.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
HILTONN
  • MEMBER
  • 10 POSTS
  • 2005 HYUNDAI ACCENT
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 59,000 MILES
I want to replace timing belt and water pump. For you that have done it on this model, is it a job for the shop or can I do it? I'm really concerned about the limited space there is and also getting the pulley off. Looks like an impact wrench will be a really tight fit. Thanks.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
TIMING BELT
Removal
Lift vehicle using a jack. Remove engine support bracket, if necessary. Loosen, but do not remove water pump pulley bolts. Remove all accessory drive belts. Remove pulleys from crankshaft and water pump.
CAUTION:DO NOT rotate engine counterclockwise. If reusing timing belt, place reference mark on timing belt to indicate direction of rotation before removal.

Remove timing belt covers and gaskets, noting bolt length and location. Rotate crankshaft clockwise to align timing marks on crankshaft and camshaft sprockets. See Fig. 1 .
If reusing old belt, place mark on belt to indicate direction of belt rotation. Loosen timing belt tensioner bolts, and move tensioner inward toward water pump. Temporarily tighten bolt in slotted side of tensioner. Remove timing belt.
Fig. 1: Aligning Timing Marks
Courtesy of HYUNDAI MOTOR CO.
Inspection
Check timing belt for cracks, cracked or missing teeth, and separating canvas. Inspect timing belt tensioner and idler pulley for worn bearing.
Installation
Ensure camshaft and crankshaft timing marks are still aligned. See Fig. 1 . Move timing belt tensioner toward water pump and tighten bolt. Install crankshaft sprocket (if removed) with chamfer (flange) toward engine.
Install timing belt on crankshaft sprocket, timing belt idler, camshaft sprocket and timing belt tensioner. Make sure there is no slack in belt. If reusing old belt, ensure belt is installed in original direction of rotation.
Apply counterclockwise force on camshaft sprocket to apply tension on tension side of belt. Ensure all timing marks are aligned. See Fig. 1 .


https://www.2carpros.com/forum/automotive_pictures/266999_hyun_1.jpg



CAUTION:Slot-side timing belt tensioner bolt must be tightened before pivot-side to prevent belt tensioner from rotating, causing belt to be overtightened.

Loosen timing belt tensioner bolts to place tension on timing belt. Tighten timing belt tensioner bolts to specification. See TORQUE SPECIFICATIONS .
Smoothly rotate crankshaft clockwise for 2 full revolutions. Realign crankshaft and camshaft timing marks. To check belt tension, hold belt tensioner and timing belt together and apply slight thumb pressure (about 11 lbs.) at center point of belt tensioner.
Ensure belt cog will reach half the width of timing belt tensioner bolt on slot-side of belt tensioner. Install crankshaft flange. Install timing belt cover. To install remaining components, reverse removal procedure. Adjust drive belts to proper tension.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
DAVE H
  • MECHANIC
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This can be a tricky repair if you have never attempted it before ! .. you can usually get a impact gun on crankshaft sprocket if you remove the road wheel and backing cover

Hope this helps


https://www.2carpros.com/forum/automotive_pictures/266999_AAA2_1073.png

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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
HILTONN
  • MEMBER
  • 10 POSTS
Big help! Thanks. I would like to ask 1 more question. I have a repair cd for this model, but doesn't show the location of number 1 spark plug cylinder. How can I tell which one it is? Thanks one more time! You have been very helpful!
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
#1 is always the cylinder closest to the timing/cam belt ..


https://www.2carpros.com/forum/automotive_pictures/266999_hyun_2.jpg



Hope this helps .. please let us know how your repair goes and any tips you may have for other forum user's !

Let me know


https://www.2carpros.com/forum/automotive_pictures/266999_AAA2_1074.png

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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
HILTONN
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  • 10 POSTS
  • 2005 HYUNDAI ACCENT
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 59,995 MILES
Okay, I'm now ready to replace my timing belt. To make sure I don't screw up, does the crankshaft pulley BOLT turn left to loosen? And what size impact SOCKET do I need to loosen it?

Thanks !
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
KHLOW2008
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  • 41,815 POSTS
Hi hiltonn,

The crankshaft center bolt is normal threaded ie, to loosen, turn anticlockwise.

The size should be 19 mm hex bolt.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
HILTONN
  • MEMBER
  • 10 POSTS
Thanks so much. Hope you have a great Father's Day and God Bless!
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
KHLOW2008
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You're welcome and thanks for the well wishes.

Have a great day.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
HILTONN
  • MEMBER
  • 10 POSTS
I see no adjustment for the timing belt tentioner. Is it done automatic? I don't have the hydraulic tentioner type.
With the tentioner bolts loose, I turned the crankshaft to the right about a half turn and then tightned down both tentioner bolts.

2005 Hyundai Accent 1.6 engine.
Thanks one more time!
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Friday, March 29th, 2019 AT 5:20 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
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You should never turn the crankshaft with the tensioner bolts loosened. The timing belt can skip tooth when the camshaft is suddenly sprung forward by the valve springs if the crankshaft is turned too much.

Tightened the adjuster bolts, turn the crankshaft till you feel resistance of the compression and then release the tensioner bolts. Retighten the bolts after the tensioner spring pushes against the timing to self adjust. That is the adjustment you require.
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Friday, March 29th, 2019 AT 5:20 PM (Merged)

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