1G Timing belt broke

[dszx13]

jus got a 93 eagle talon 2.0 AWD turbo 5 spd. the tming belt broke. how hard is it to change? an what type of tools is needed to replace it

 

[abaum565]

It's a fairly invasive job. If the timing belt broke you may have bent valves and ruined pistons.

Just take you time, get the right quality oem parts and double check everything.

 

[DSMtsi23]

Timing belt broke = most likely bent valves and need to pull the head.

 

[dszx13]

i have 2 spare heads. is it likely i didnt bend em??

could i pull the valve cover off an see if the valves are bent some how?

 

[DSMtsi23]

How long did the motor run after the belt broke?

 

[helluvadsm]

i have 2 spare heads. is it likely i didnt bend em??

could i pull the valve cover off an see if the valves are bent some how?

Our engine, is what you call an interference engine. So if you skip some teeth or break the timing belt you are more than likely bending some valves; unless you're lucky and the car gods are watching over you
The bending action happens under the head where the pistons and valves collide, so there is no way to see them unless you pull the head off.
And when you pull the head you will be able to see the valves bent.

 

[dszx13]

as soon as it happened the car died. i was in second gear.

 

[1990clipse]

You can check to see if you bent them by putting on a new belt and doing a compression check, otherwise you have to take the head off. Id say the chances are unless you were idling you probably bent valves.

It happened to me two years ago and i ended up pulling a working head off another eclipse cams and all and just removed and replaced. make sure you get an oem self tensioner and new idler and tensioner pulleys when you put on your new belt.

 

[dszx13]

why the pullys?? i got 2 heads an nothin looks bad really the springs has rust on em from sitten but idk whats good or bad

 

[1990clipse]

While I recommend oem, you can get away having aftermarket timing belt, idler pulley, and tensioner pulley. However i would never recommend anything but oem for the timing belt self adjusting tensioner, aftermarket ones are a waste of time and money.

This is what a head with bent valves looks like. Although not always this dramatic.

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[dszx13]

ok thanks man that pic will help a bit. but why would i have to get new pulleys

 

[1990clipse]

Any time you replace the timing belt you should replace the waterpump, balance shaft belt, timing idler pulley, and timing tensioner pulley (pulleys behind timing cover, not external pulleys). as well as inspect/replace self tensioner.

 

[dszx13]

to do all that would i have to pull the motor to do that?? ive never had a vehicle with the engine sideways an no room at all under the hood

 

[1990clipse]

You dont have to take the engine out but it is kinda cramped though. The first couple times replacement on a 4g63 is kinda hard but really the hardest part is taking the timing cover off and putting it back on. I recommend you get a haynes or chilton manual and read over head replacement a couple times then just digg in. There is tons of stuff on this website about timing belts so search a little bit. Also if your reusing one of your spare heads now would be a good time to drop in some 3g lifters to eliminate lifter tick.

 

[dszx13]

3g lifters?? im very new to all this. im use to 4x4 trucks! 4g63...idk what that is..im guessin a motor??

 

[1990clipse]

Ya you really need to do some research or you might be better off taking your car and your spare head to a mechanic. Yes 4g63t is the name of your engine and the 3g lifters are a hydraulic lifter with oil ports that are bigger than the oem ones and if your spare head has many miles on it and its been sitting a while i would recommend replacing lifters and have it pressure tested.

 

[dtaylor127]

Timing Belt VFAQ (Timing Belt TSB - ENHANCED)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This link is a very good place to help you out with your timing belt changing needs. I hope that this helps you out!

The day I bought my car I knew that the turbo was blown. I went to drive it home and was doing 60mph when the car started slowing down for no reason. I went to push in the clutch and downshift to 4th and the car just died. I pulled the cover off and checked all of my valves and they all checked out OK . I guess that the car gods were watching over me! The way I know that my valves are good is because my friend is doing a total engine rebuild and his valves were done and when we pulled mine off they were all still in tact.

 

[dszx13]

ok thanks. if i have more questions i'll ask

 

[1990clipse]

Timing Belt VFAQ (Timing Belt TSB - ENHANCED)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This link is a very good place to help you out with your timing belt changing needs.

+1 thats what i used my first time come to think of it. However you should still get yourself a good repair manual you will need it!

 

[dtaylor127]

+1 thats what i used my first time come to think of it. However you should still get yourself a good repair manual you will need it!

Also you are going to need 3 tools that are explained in that guide.

MITSUBISHI 3 TIMING BELT INSTALL TOOLS 4G63 ECLIPSE DSM:eBay Motors (item 130356991532 end time Jan-15-10 19:11:03 PST)

^^^^^^^^^^^^^^^^^^^ These three tools are going to be the key to your timing belt change. The timing belt tool that fits on the end of a rachet to help you move the pullys to fit the timing belt on. The long screw to compress the hydraulic tensioner and the crank tool to keep the bottom half of your engine from turning while installing the timing belt! You are also going to want to use 2 clips on the top cams (intake and Exhaust) to keep them from turning while you are installing the timing belt as shown in the guide. I used about 4 on each cam. Just to make sure there were going to be no problems. Can never be TOO careful!

 

[1990clipse]

Also you are going to need 3 tools that are explained in that guide.

MITSUBISHI 3 TIMING BELT INSTALL TOOLS 4G63 ECLIPSE DSM:eBay Motors (item 130356991532 end time Jan-15-10 19:11:03 PST)

^^^^^^^^^^^^^^^^^^^ These three tools are going to be the key to your timing belt change. The timing belt tool that fits on the end of a rachet to help you move the pullys to fit the timing belt on. The long screw to compress the hydraulic tensioner and the crank tool to keep the bottom half of your engine from turning while installing the timing belt! You are also going to want to use 2 clips on the top cams (intake and Exhaust) to keep them from turning while you are installing the timing belt as shown in the guide. I used about 4 on each cam. Just to make sure there were going to be no problems. Can never be TOO careful!

To save you some money the crank holding tool can be made.
Crankshaft sprocket tool

and any long bolt with m8x1.25 thread can be used for the self adjusting tensioner tool as long as the threads are long enough. (The battery hold down bolt is the right thread size and the right length but you have to get a die and make the threads go almost all the way up the shank.

 

[darkstar0re0]

### if ## timing belt didnt break....but u bent valves anyways? would u still have to change the tension pulleys...etc.? i have a 95 talon and i didnt have the motor on TDC before putting the head back on....i tried to start it up and there were knocking noises...i pulled the valve cover off and discovered that three of my rockers were off of the valve springs....after replacing the valves...should the timing b complete?

 

[1990clipse]

the timing belt / balance shaft belt is a B!t$# to get to, and the first couple times its hell to get all the marks lined up right, so like i said, do it right the first time and save yourself the trouble and money. replace the water pump while it is accesable, its not expensive. as long as your car is pretty much stock and dont need anything "high performance" you can get a pulley and belt kit from almost any parts store or online for a decent price, and the waterpump brand new at autozone is only about $40 lifetime warranty. DO NOT CHEAP OUT ON THE SELF TENSIONER, you WILL be doing it again soon if you do.

 

[rlacasse1]

You need to replace all the tensioners and pulley so you know that your are in good shape 100%. you don't wanna throw on a new belt and have something else fail because you decided to not go all the way with it.

 

[dszx13]

ok wow so bought how much would all this run me??