Question about 1998 Dodge Avenger

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Will a broken timing belt and water pump require replacement of engine head valves 1 and 3?

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If this is 2.0 liter duel over head cam than engine damage most likely will happen if the timing belt brakes sorry about the bad news .

Posted on Sep 29, 2009

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Quite possible...

The timing belt keeps the pistons and valves in sync.
Through the camshaft, the intake valves open to allow gas/air mixture into the cylinder when the piston is in the "down" stroke.
And it opens the exhaust valves on the piston upstroke after firing.

If the belt breaks, the upstroke piston may crash into an open valve (#1 & #3, in your case)

The water pump failure is not directly related to the valves, but may have aggravated the situation.

Posted on Sep 29, 2009

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Yes,anytime you break a timing belt you take a real good chance of breaking valves...water pump is always a good idea to change once your digging into and engine....

Posted on Sep 29, 2009

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1999 honda accord vtech timing belt marks


The Honda F23 series engine is a 2.3 liter, all aluminum block, 16 valve, Single Overhead Camshaft (SOHC) motor used in the Honda Accord (1994 - 2002) and Acura Cl (2.3). Timing belt failure may result in either the intake or exhaust valves bending after contacting the pistons. If the belt has broken, a Compression Leakage test is advised to determine if the valves require replacement. Compression leakage from any of the cylinders (indicating bent valves) will require the removal of the cylinder head. An inspection and rebuild of the head by a reputable automotive machine shop is recommended in lieu of doing it yourself. This DIY article only covers belt replacement. The belt replacement interval is either 90,000 or 105,000 miles based on the specific model year. Check the owner's manual for the specific service interval. If the mileage is below the threshold but the vehicle is over 7 years old, consider performing a replacement as preventative maintenance (PM). Timing belts cannot be visually inspected for wear. Moreover, a visual inspection would require the removal of the timing belt cover which in itself is time consuming and better spent working on replacement. A typical timing belt component kit consists of: 1. Timing Belt 2. Balance Shaft Belt. 3. Timing Belt Tensioner Pulley. 4. Balance Shaft Tensioner Pulley

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My 2002 Hyundai Sonata sgx won't start. Someone said it could be the timimgbelt and someone else said a fly wheel. It made it to the corner oneday then just died. Has gas in it...and anew battery..


If the flywheel failed you'd surely know it. There'd be pieces of car all over the road. As far as the timing belt is concerned, that's is a distinct possibility. If the car has more than 70K miles on it and the timing belt has never been changed, then in the case of a sudden no-start condition, the timing belt is always a real possibility.
There are a couple ways to check for a broken belt, but before I tell you them I must tell you this. The engine in your car is referred to as an INTERFERENCE engine. This means that if the timing belt breaks while the engine is running, the camshaft and crankshaft will be out of synchronization and the valves in the head will hit the pistons in the block and bend or break. Now, to check for a broken belt, the easiest way is just to crank the engine. If it seems to crank over much faster than it normally does, then there is a good change the belt is broken. If you cannot tell for sure, you may be able to see if the cams are turning by removing the oil filler cap and looking down into the valve cover. If you can see the camshaft when looking into the valve cover, crank the engine and see if the camshaft is turning. If not, you got a broken belt and a trashed motor. It will require, at a minimum, the head to be repaired and resurfaced, new head gasket and timing belt and tensioner. If you have the 2.7L engine, you should replace the water pump at this time as it is driven by the timing belt. There may be additional damage done to pistons depending on how fast the engine was turning when the belt broke.

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1 Answer

I have an 03 vw jetta 1.8 turbo. The timing belt has broken according to the mechanic. My question is this what is called a "contact motor" which requires a lot more work such as head work etc....


You have a contact or interference engine. This means that there is not enough room between the top of the piston when it is all the way up for the valves to be open. What happens is they get hit by the piston and they bend or break. You will have to take the head off and send it to an engine rebuilder. MAKE SURE they know Volkswagons or you will likely be taking the head off again and sending it back out. Normally valves and valve guides need to be replaced, you are looking at about $1200-$1500 for a proper job. Also you will need new head bolts, VW head bolts are not deisigned to be reusable. (Been there, done this).
You might be better off looking in a scrap yard for a replacement engine. , or a head.

Sep 10, 2013 | Cars & Trucks

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Water pump locked, belt broke when car parked (melted on hot wp pulley. now tensioner is locked = can move to take tension off to install new belt. Why would it lock-up?


for a water pump to lock ( seize) it would have had bearing failure in the pump. that will require a new water pump. It is possible of obstruction in the impellor section but this would be unlikely. When water pump bearins fail you will normally hear a low tinny metal growl at low rpm long before seizure occurs

Jan 06, 2013 | Cars & Trucks

2 Answers

Timing belt broken instructions to replace


I'm all for helping folks saving $$ and doing their own work, but my friend you don't want to get into this one. When a timing belt breaks, it usually takes many other parts with it - mainly valves. It's going to need to be drain of all fluids, head pulled, inspected cam and crank aligned and it requires alot of specialty parts... trust me, let a shop address this one.

Mar 08, 2011 | 1988 Nissan Stanza

1 Answer

The timing belt on my 99 kia sephia has apparently broken...is there any way to tell whether it damaged the pistons and valves before I spend money replacing the timing belt and water pump?


No there no way way of knowing without replacing the timing belt, cylinder compression test at this point would not work due to valve's open at wrong time, this engine is a INTERFERENCE ENGINE, but you might get luckly where it did not damage valve's it's happen here at my repair shop, also you don't have to replace the water pump, it is not timing belt driven water pump

Jul 02, 2010 | 1999 Kia Sephia

2 Answers

TIMING BELT BROKE


The timing belt connects the pistons and the head valves so that they all go up & down in the correct sequence. Turn over the engine with a broken belt and they could hit together - rather like hitting your fists together very hard.- and one or more of them could bend or break needing either replacement pistons, valves and/or head.
On the other hand you could have the luck of the devil and only need to line up the various timing marks and fit a new belt

Dec 15, 2009 | 2003 Dodge Neon

3 Answers

95 toyota camry died and turns over but wont crank


If your timing belt broke while driving, there WILL be engine damage. Valves will not be moving in response to your pistons continuing to move. I hope that it is not your timing belt. Check your ignition module, first, that's easier.

Hope this helps!

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what was it doing when the belt broke.... most times you just have the belt replaced and everything is fine.

Robert

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