Samy thanks again for your reply back is that mean mechanic can reuse the old bolts providing they come un damaged ? ??

Bearing cap bolts, yes.
the bolt that holds the camshaft gear, no. It is a torque to yield bolt.

https://www.google.com/search?q=2006+Suzuki+Forenza+reuse+camshaft+bolts

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It is important to replace head bolts after repairts, if they had washers they must be refitted,the bolts should not come loose is the head alloy ? if so it may have softened , if the engine was overheated , if that is so the head will have to be replaced.

Dear Esra,
In the United States, our traditions are to never reuse connecting rod bolts, or head bolts, (or other engine assembly bolts for that matter,) because of "stretching".
Since all these bolts are torqued to a high number, they will stretch somewhat, even if it is a few thousands of an inch.
Therefore, reusing them can cause a mis-reading of the torque.
So, in America, almost all certified mechanics use new bolts for each engine assembly.
God bless your efforts.

no you reuse the old bolt and washer unless there to far gone or damaged.

If the cv boots( the rubber booties) are still intact and not torn or cracked then you are probably OK to reuse them. They are sealed, hold grease , and keep the dirt out. As far as getting the rivets out I prefer to use an air chisel, it is the fastest and most affective way I have found.

Can I get a thumbs up rating..............Thanks

Here are the instructions for removing the timing cover, and for replacing the timing belt. If this is helpful, please click my accept button! Thanks!
Remove accessory drive belts.

1. Remove water pump pulley to pump hub attaching bolts, then the pulley.
2. Remove right inner fender panel to gain access to crankshaft pulley.
3. Remove outer crankshaft pulley attaching bolts, then the outer stiffener/spacer and outer pulley
4. Remove inner stiffener/spacer, attaching screws, inner pulley and baffle plate.
5. Remove attaching bolts, then the upper and lower timing covers.
6. Reverse procedure to install. When installing crankshaft pulley, ensure curved lip on baffle plate and deep recess of inner pulley face outward

1. Remove timing belt covers as outlined previously.
2. Remove timing belt tensioner pulley attaching bolt, then the tensioner pulley, spring and spring cover
3. If reusing old belt, mark direction of rotation on belt to aid installation.
4. Remove timing belt from crankshaft and camshaft sprockets.
5. Check crankshaft and camshaft sprockets, tensioner pulley and timing belt for wear or damage. Replace components as necessary.
6. Align camshaft and crankshaft sprocket timing marks with marks on cylinder head and oil pump housing
7. Install timing belt. If reusing old belt, ensure belt is installed so that direction of rotation mark made during removal is positioned correctly.
8. Install spring and spring cover onto tensioner pulley, then install pulley and attaching bolt. Do not tighten bolt at this time.
9. Install tensioner spring onto anchor, then tighten pulley attaching bolt to torque listed at the end of this section.
10. Reinstall timing belt covers.

This photo shows timing marks.

Yes you can, as long as there are no signs of damage to the threads.

Thank you for using Fixya.

Hello Sir, The codes that you provided us means the following :----

1. Code P 0500 :---- The speed sensor is not working or malfunctioning.
2. Code P 0462 :---- There is a low input in the Fuel Level Sensor Circuit.
3. Code P 1693 :---- This means that the Turbo Charge Control Circuit is Malfunctioning.

You have to call a mechanic to rectify these faulty areas. Only a certified mechanic can fully recover performance.
Please reply me for further assistance.
Thank you Sir, Have a nice day.

should be just connected with tube and bolt. just take them off.602-909-6450 Message
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it has a rubber gasket on it replaced it when it has a damage but if is still ok then just bolt it again.