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Timing and balance shaft belt reminder pics

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rodent

15+ Year Contributor
149
6
Aug 29, 2007
Highlands Ranch, Colorado
Just a wanting to show everyone what happens when you let your timing and balance shaft belts go past the miles they were made for. I had my 99 on the road for 2 days after buying it. The previous owner said he replaced the engine 40k miles ago so I figured I had 10-20k miles left on the timing belt. WRONG! I think the balance shaft belt went first and took out the timing belt.

I should of replaced them immediately after buying the car so its my fault. The whole engine had to be replaced. Luckily I was able to purchase my wrecked 95 back and use that engine. 2008 was a bad year for me with DSM's...

Pics are self explanatory: :(
(sorry my camera doesn't take the best shots close up)

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2 valves broke off and punched a hole though the piston.
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Hard to see but the cylinder walls are pitted from the loose valves. Not even sure if the block can be bored enough.
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Chunks of metal I found in my turbo. Much more inside.
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Still missing 2 valve stems somewhere...
 
Ouch...

That sucks. What are you gonna do now?

Check the cat and oil pan.
PS- does your camera have a macro mode?

No need to check the pan. Different engine now and the car back on the road. Nothing went all the way through the turbo, just collected inside.

I tried the macro function and no luck with that. I need a new camera.

I just wanted to post these pictures to let others know to don't wait to replace their belts. This happened on the highway doing 65.
 
Like with me - when I bought my Ply, I took it home, put it up on the jackstands, went to a Mitz dealership and bought the 'full monty' to do the belt changeout - and I'm glad that I did. T-belt was ripping across the top, teeth were beginning to show some tear and cracking at the base of all the teeth, and the balance belt was all but dry cracked aross the top.
 
When I was building the motor that is currently in my eclipse, i was told that the timing belt was replaced less than 5k miles prior (I bought from a friend who wouldn't lie to me), but after i got her start up, I kept having little chunks of timing belt thrown at me and couldn't figure out why. I pulled the timing belt, and looked at it and it was perfect....when I went to put it on, I noticed that the balance shaft belt looked a little worn, so I pulled it and found that it was missing 5 teeth and cracking...Needless to say I am VERY happy my eclipse was giving me other problems, otherwise it would have cost me my new head (5000miles also)...I agree...Make sure the belts are done, and if they are not...or you cant confirm that they have been, your definitely playing with fire.
 
that's crazy. Just two weeks ago I redid my head and when I took off the timing belt my balance belt was in pieces and half of it was missing
 
The balance shaft belt was cracked pretty bad. You could bend it and it almost snap in half. The timing belt looked good still. Both belts were continental brand. I would assume the shop that replaced the engine did both belts at the same time since they are the same brand. The Continental balance shaft belt just doesn't last as long as a Mitsubishi belt. Its too bad the balance shaft belt is so hard to get to and inspect. I could of caught this sooner if I was able to see just how bad it was. Cost me an engine and two good weekends of my time.
 
this is exactly why we push our timing belt kits so much! Such a horrible loss comes from ignoring this service!

Check out the vendor section folks, got some great deals on stuff that will prevent this kind of horrible damage.
 
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