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Old 05-10-2011, 07:30 AM   #1 (permalink)
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Default Changing Timing Belt, Looking for some help.

So I will be changing out the timing belt on my wife's '04 Forenza and I am looking for some resources and advice.

I have worked on all the cars I have owned, and done just about everything except timing belts. So any advice, tips, tricks?

Also, any other parts I should replace?
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Old 05-10-2011, 09:41 AM   #2 (permalink)
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What's the current mileage?

I had mine replaced at the shop 2 weeks ago... only 50kmiles, but 6.5 years. Timing belt replacement was heavily recommended.

They told me they normally only replace tensiometer/rollers/water pump only if they show problems during at the 1st interval (60kmiles).

Everything was inspected OK in my case, so I only had to pay the belt itself + 1.7hr labor (total 250$CAN).

I do almost all the maintenance myself on that car... but the Timing Belt was something I didn't want to do. Too costly if something goes wrong later on a interference engine.
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Old 05-10-2011, 09:47 AM   #3 (permalink)
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Mileage is about 88k, we loaned the car to my brother for a while during the 60k time frame and my brother does not remember if the timing belt was changed, he is pretty sure it was just not 100%. So I figured I would just replace it be safe.

I think it would be pretty easy to do myself with a helper. I just would like to know what manual people are using that have done it.

I was quoted over the phone price from 425-550 for it to be changed. Pretty costly to replace a $30.00 belt.
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Old 05-10-2011, 11:11 PM   #4 (permalink)
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Default 2004 Forenza Timing Belt

Hi Joe,
My first recommendation would be buy the factory service manuals for this car. There're currently some up for auction on ebay for $60-$70http://cgi.ebay.com/ebaymotors/2004-Suzuki-FORENZA-RQ420-OEM-Shop-Service-Manual-SET-_W0QQcmdZViewItemQQhashZitem53e6c64130QQitemZ36035 4038064QQptZMotorsQ5fManualsQ5fLiterature

I had the timing belt and water pump replaced recently on my daughters 2004 Forenza by a local shop ($250USD) and shortly afterwards the crankshaft pulley/harmonic balancer failed (separated) and I replaced it myself. The timing belt tensioner was chattering so while I was replacing the balancer I adjusted the tensioner. After that I'm convinced I should have done the timing belt myself. If you have a good mechanical aptitude, a jack and some jack stands, along with a few basic hand tools, you can do the timing belt. I have the service manuals and will give you a text version of the procedure. If I have time tomorrow, I will scan the pages of the manual to .pdf files and post as the diagrams help quite a bit. I started by jacking the car up and placing jack stands on the unibody "frame rails" just behind the engine cradle mounting points. With the car supported by the jack stands, I used the floor jack to support the engine, due to the fact you have to remove the passenger side engine mount. Now to the factory service manual steps for "Timing Belt Removal and Installation" My notes
are in (parentheses).
1.) Disconnect the negative battery cable.
2.) Disconnect the manifold air temperature (MAT) sensor connector.
(this is on the back side of the air cleaner housing near the firewall)
3.) Disconnect the air cleaner outlet hose from the throttle body.
4.) Disconnect the breather tube from the camshaft cover.
5.) Remove the air cleaner housing bolts. (1) is near the shock tower and
the other is down low in the front by the frame rail.
6.) Remove the air cleaner housing.
7.) Remove the RF wheel
8.) Remove the RF wheel well splash shield
9.) Remove the serpentine accessory drive belt.
10.) Remove the crankshaft pulley bolts. (The (4) "bolts" are socket
head cap screws, requiring a metric allen wrench) 6mm I think)
11.) Remove the crankshaft pulley. (This is what most of us know as the
harmonic balancer, this one has the belt pulley integrated) (You should
check the condition of this unit as they have a habit of separating at
elastomer.) YOU MAY HAVE TO TAP WITH A MALLET TO REMOVE
12.) Remove the passenger side engine mount bracket. (1) nut near the
strut tower and (2) nuts and (1) bolt on the engine side of the mount.
13.) Remove the timing belt cover bolts. (There is a inspection window in
the cover directly behind the engine mount. Remove (1) bolt from it
and (2) or (3) from the cover down low. The top is retained by clips.)
14.) Remove the timing belt cover.
15.) Using the crankshaft gear bolt, rotate the crankshaft clockwise until
the timing mark on the crankshaft gear is aligned with the notch at
the bottom of the rear timing belt cover. (This will be very easy once
you see the diagram).
16.) Align the camshaft gears with the notch on the camshaft cover. (The
camshafts turn at ~50% the rpm of the crank, so if you don't have
timing marks aligned on both the "Intake" (closest to the firewall) and
"Exhaust" gear, just rotate the crankshaft gear 360 to get all (3)
marks aligned.)
17.) Remove the timing belt. (It is important to not turn the crankshaft
or camshaft gears with the belt removed)

18.) Loosen the automatic tensioner bolt (in the center of the tensioner)
Turn the hex key tab to relieve belt tension. (This will be fairly
obvious when you get this point.)

GOOD IDEA TO REPLACE THE WATER PUMP WHILE YOU ARE IN THERE


INSTALLATION
1.) Verify your crankshaft timing mark (one more time).
2.) Verify your camshaft timing marks.
3.) Install the new timing belt.
4.) Turn the tensioner hex key tab in a clockwise direction to tension
the new timing belt. Turn the tab until the pointer aligns with the
notch.
5. Install the tensioner bolt.
Tighten the automatic tensioner bolt to 25 N.m (18 lb-ft.)
6.) Rotate the crankshaft (2) full turns clockwise using the crankshaft
pulley bolt.
7.) Recheck the automatic tensioner pointer.
8.) Install the timing belt cover.
9.) Install the timing belt cover bolts.
10.) Install the engine mount.
11.) Install the crankshaft pulley.
12.) Install crankshaft pulley bolts and torque to 15 lb-ft.
13.) Install the serpentine belt.
14.) You can guess the rest.......
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Old 05-11-2011, 07:04 AM   #5 (permalink)
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Thank CYCLIST for posting that up. After reading the instruction you posted it seems pretty simple. If you could post up some of the diagrams that would be great or you can email them let me know.

Thanks I am going to order the parts today!
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Old 05-11-2011, 07:25 AM   #6 (permalink)
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I am looking on Rockauto for some of these parts. Any idea what brands are good for this car?

Engine : Timing BeltRelated Parts
GATES Part # T309 15/16" x 53 7/32" (169 Teeth) PowerGrip Premium OE Timing Belt Interference engine application

Cooling System : Water PumpRelated Parts
GATES Part # 42408 {#164} Cast Aluminum, Reverse Rotation - Timing Belt Driven Standard Interference engine application

I am going with the timing belt tensioner from NAPA.


So far this is what I have, if there are better parts I should look at please let me know.

Last edited by Joe..Cool; 05-11-2011 at 07:54 AM.
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Old 05-11-2011, 11:48 AM   #7 (permalink)
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Thumbs up 04 Forenza Timing Belt Replacement Page #1

04 Forenza Timing Belt Replacement Page #1
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Old 05-11-2011, 12:59 PM   #8 (permalink)
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Thanks CYCLIST, I have added the other pages. Once I complete mine I might up a little how to with some pictures.

Also here are the rest of the pages.
Attached Thumbnails
Changing Timing Belt, Looking for some help.-04-suzuki-forenza-timing-belt_page_2.jpg   Changing Timing Belt, Looking for some help.-04-suzuki-forenza-timing-belt_page_3.jpg  
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Old 05-12-2011, 11:18 AM   #9 (permalink)
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Default 2004 Forenza Water Pump Replacement

2004 Forenza Water Pump Replacement
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Old 05-16-2011, 06:59 AM   #10 (permalink)
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Cyclist

Are there any torque requirements listed at the beginning of this section? I just want to make sure.
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