Re: midnight club...

@Jay

You mentioned that the timing belt gave while the person was driving, what happens when that occurs, is there a loud sound or does the engine just stall and shut down?

you would be very happy if you don't hear much Moji. the louder the noise, the bigger the damage.
breaks in the belt will create different sounds depending on condition. running at high speed when it happens can be very dangerous. and damage will be extensive. breaking them at idle will cause little noise and damage...

Re: midnight club...

running at high speed when it happens can be very dangerous. and damage will be extensive

Now that is scary..I wish i knew more about automotive stuff..sometimes i wish i took the automotive shop back in high school..

Re: midnight club...

A late model Honda CRV was just towed to my home shop today. The suv has 140+ km and still with the original timing belt installed. Apparently it broke while owner was driving.

This could be messy and very expensive to fix. Hondas have Interference type engines. Belt breaks valves go too and what others we don't know yet as of now.

Please always be aware of your vehicles' Timing Belt replacement interval. Replacing the TB at the required manufacturer's interval is cheap insurance compared to the consequences if this maintenance sched is neglected or prolonged.

+1 these small little expensive items could lead to magnified expenses like overhauling or worse engine replacement when left unmaintained.

My Mazda 323's B6 DOHC engine is may not be as tuneable like the Hondas but the non-interference design gives it a little piece of mind whenever the dreadful belt tear happens.

will that consequences possible with other car models?say a toyota altis?

I believe the Altises also have non-interference design but better check the engine specs just to be sure as many cars have the same body but different engine specs, aside from the fact that it may also vary from different domestic markets. So if you have a stock one, better consult with your manual.

A car club is also a helpful venue to have more friends and gain more knowledge in terms of your car's maintenance. These fora are actually a goldmine of information since it would give you a real local feedback of what's happening and what to dos.

There is grupotoyota, altisclubzz and toyotaclubphil that you could join and have fun while learning.

broken timing belts will often result to damages in the valve train and even sa pistons whatever make or model.
timing belts are often recommended to be replaced when the 100,000km mark is reached... I always have mine replaced at 80,000 kms.

For non-interference engines, this would be an exception as the pistons won't be able to meet the valves in any way as it continues to go up and down while the valves are static. Worse thing that could happen is you'll stall and be towed.

Is the kms accumulated the only measure as when to replace the timing belt? Im just curious because our rav4 is a 2006 model but has only 13k+ kilometers on it..

Just like in engine oils, you need to consider the quality, time and range spent by your timing belt.

Your car's manual also has a maintenance schedule where it shows what things are to be check and/or tightened and/or replaced for every X kilometers.

Sometimes, the belts gets easily worn due to the material used. Usually cheap replacements would only do more harm as it will wear earlier and may stall you in an expected time and place.It would just cause you to pay for a tow, buy another belt and another labor charge which is more expensive than having an original(OEM) or a good Japan replacement used in the first place.

Also sometimes, incorrect setting of the tension bearing causes the belt grooves to slide/jump to another teeth and cause damage to the belt. There are many causes and the only way to prevent it is to have a periodical check even when it's not already due.

Re: midnight club...

@Jay

You mentioned that the timing belt gave while the person was driving, what happens when that occurs, is there a loud sound or does the engine just stall and shut down?

I have not experienced it myself . What I tell my family members is that when driving and the car suddenly stalls without no apparent reason at all then just let it be. Push it to the side and don't try to start the engine anymore. In case it is a broken timing belt then the chances of other complications can probably be avoided.

Re: midnight club...

@Jay

You mentioned that the timing belt gave while the person was driving, what happens when that occurs, is there a loud sound or does the engine just stall and shut down?

On an interference engine, valves and pistons occupy an area where they overlap. With a timing belt, they work in a harmonious way so as one of them occupies that overlapped area. When the belt snaps, the valves stops moving (this is because the cam shaft connected to the cam gear is not anymore rotating since there is no more belt that helps the gear and shaft to rotate) while the piston continues to go up and down (since it's connected to a different shaft - a crank shaft)

When that happens, a valve that is in extended position will continue to remain on that position while the piston extends upward to occupy the "overlapping" area, it would hit the valve(s).
These would lead to metals banging and bending in a very rapid motion and scare the sh1t out of anyone. Even when in idle, your engine is revving at around 800 RPMs so it is quite a handful event as well even when not in high speed.

In a non-interference engine, the valve and pistons don't meet in whatsoever condition. So when the belt snaps and the valves stucks, the piston won't hit any part of it. There will be just no combustion which will lead to stalling.

Re: midnight club...

Here is a good visualization of what happens inside the engine...

At Time#1 and 4 you could see the intake and outtake valves go down and occupy a space in the cylinder bore where the piston also occupies at some point in time. The valves go down when it is being pushed by the camlobe (egg shaped). The lobe is a part of the camshaft that rotates with the cam gears that is driven by the timing belt. When the belt snaps all of those stops so some of the valves freezes on the space that will soon occupied by the piston.

The piston on the other hand continues to move as it is connected to a crank shaft which is independent to the parts above. The cam shaft and crank shaft is connected though the timing belt so no belt or incorrect timing will not make the engine work as intended.

Re: midnight club...

Sample pics then the piston and valves meet
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In a non-interference engine, the piston has a recess (piston/valve seat) where the valve could occupy without hitting the piston
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Re: midnight club...

Here is the poor CRV sitting outside in the rain across my garage. Autospeed mechanic is still busy so he might not be able to work on it till day after tomorrow. I'll try to shoot some pics when we pull the job. Towing alone from Quezon City to Pasay cost 3,100 pesos already.

Tito Jay, Now I know where you live na! I'll drop by your place on Christmas! Ang lapit lang pala! Advance Xmas Ninong Jay! 😀

Re: midnight club...

Saan ba ang place mo Jarod? Sa me malapit sa likod lang kaya ako ng Motor Pool / Firestation sa Arnaiz St ( Pasay Road ).

At times like these I wish I had a Boroscope.

http://www.amazon.com/Milwaukee-2300-20-M-Spector-Digital-Inspection/dp/B001AOVBHG/ref=sr_1_8?ie=UTF8&qid=1289380443&sr=8-8

I could inspect the inside of the combustion chambers through the spark plug holes.

Re: midnight club...

Yup, lapit lang tayo Ninong! 😀

Sa Aurora lang ako 😛

Re: midnight club...

Yup, lapit lang tayo Ninong! 😀

Sa Aurora lang ako 😛

You mean sa me likod lang ng cockpit. Malapit nga. Hehehe 🙂

Re: midnight club...

WOW!!!very sound advice sir jarod and sir jayL.i do follow rhe periodic maintenance of the car,but this timing belt or chain is another matter,like moji says,i too should have studied these automotive courses hehehe,or another hobby ulit.on this timing chain/belt replacement,any advice or recommendation on where to go,sa kasa or to any reputable car care center?

Re: midnight club...

I inquired at Honda Makati today about engine overhauling. I was informed that they do not do this but instead takes of the engine and sends it to the factory. They term I was given by the service adviser was Re Manufacturing. From the factory it's sent back to the dealer for re installation. Cost 50K up depending on the problem.

Re: midnight club...

Bros,

Where do you think I could purchase this battery.

Pentax D-LI3. It's for a point and shoot cam Model Optio M40.

I can get it from amazon but would like to buy locally so I can use it immediately.

http://www.amazon.com/gp/product/B000NUN2HA/ref=ord_cart_shr?ie=UTF8&m=ATVPDKIKX0DER

Thanks for any help.

Re: midnight club...

WOW!!!very sound advice sir jarod and sir jayL.i do follow rhe periodic maintenance of the car,but this timing belt or chain is another matter,like moji says,i too should have studied these automotive courses hehehe,or another hobby ulit.on this timing chain/belt replacement,any advice or recommendation on where to go,sa kasa or to any reputable car care center?

It depends on what your car brand is. Most would say that if your car is already out of warranty, it would be more practical to bring it to "reputable shops" rather than in a casa.

As I mentioned, car clubs provide a goldmin of information to all your car's needs 😉

Bros,

Where do you think I could purchase this battery.

Pentax D-LI3. It's for a point and shoot cam Model Optio M40.

I can get it from amazon but would like to buy locally so I can use it immediately.

http://www.amazon.com/gp/product/B000NUN2HA/ref=ord_cart_shr?ie=UTF8&m=ATVPDKIKX0DER

Thanks for any help.

You may contact the ff below as they are the main distributor or Pentax in the Philippines:
The Super East Asia Main Office
1633 Ground Flr. Rothman Hotel,
M. Adriatico Street, Malate Manila.
Tel/Fax : (02) 524-4604 / (02) 303-2553