Son of a....

mopar_man

mopar_man

Good time party boy
Blew the timing belt on the Neon today :mad: Wednesday I take it apart and see what it needs. I believe the belt and valves are done. The water pump likely met it's maker as well seeing as the guy behind me wasn't looking to happy as he got out to wash the anti-freeze off the front of his Ram. Looks like the belt did in the pump for me and caused that.
 
68R/T said:
:hmmm: I don't believe the 2.0 is a zero-tolerance engine.
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I'm not sure what zero tolerance is but it IS an interference engine if that's the same thing. I've already shopped Ebay for a head gasket and timing belt. Pictured below is the head from an engine that met the same demise as mine (found in an Ebay ad for the parts I need).

neonvalves.jpg
 
Ive never heard of a belt taking out a water pump. On the other hand I HAVE seem quite a few pumps eat the belt. Either way it suks.:mad:
 
reminds me that at 100k hard miles it is time for me to replace the stock timing belt :hmmm: sorry to hear about the bad luck man
 
It's only a common problem if you don't follow the recommended service interval for the timing belt (105k) or if you beat the snot out of it, or if the belt is prematurely weakened by a foreign substance (oil/coolant). Otherwise it's just like any other motor with a belt, it will break eventually. Yes it is an interference motor, which means that you will most likely need a new or reconditioned head if you fail to replace the belt before it breaks.
 
Fargin' shame Shane. And I have seen them rip the snout off the water pump as they merrily cause mucho carnage.
 
We got it apart and haven't figured out if the water pump seized then bent or if something else happened. Here's the results:

Broken casing
aav.sized.jpg


Bent and seized water pump
aaw.sized.jpg


Stripped belt
aax.sized.jpg


16 bent valves
aay.sized.jpg


16 piston hits
aaz.sized.jpg
 
Holy Cow! That's some serious damage! Here's hoping you can salvage it and get it back together soon!
 
I see the piston hits, was there any damage to them or can they be salvaged? The rest of the parts are easily replacable.
 
OK, heres what you are up against. If you do a real valve job on a high mileage motor you run the risk of blowing the rings out. In order to save it without a complete rebuild I would replace the valves and just lap them in. Pour some cleaning solvent on top of the pistons and see if they let it past or keep the puddle on top. If it drains past go get drunk and price another motor. Judging from the carbon pattern the rings are still good to go. Always replace headbolts- cheap insurance. I like to dissolve grunge on mating surfaces with cheap carb cleaner and a rag, dont sand it if you can help it because that removes metal. The water pump was the culprit, I always insist on a replacement regardless of the condition if its got more than 50 on the clock. Replace the cam, crank and layshaft seals also. If you dont have valve grinding compound just scrape up some of the powder around your bench grinder from the stone and mix it with water- thats all that stuff is anyway. I wouldnt plane the head unless absolutely needed, more compression is not what you want here unless its all new parts. Buy the best replacement belt available, going on the cheap costs more in the long run. 16 valves and a builders gasket set, new head bolts and new belt sounds like 300 buks or so. If it came in here I would quote around the same for labor. Good luck with er.:helpme:
 
LOL! Superc is funny. :D
That sucks, shane. Now yah know it is cursed, through it away!!!
 
mr340 said:
I see the piston hits, was there any damage to them or can they be salvaged? The rest of the parts are easily replacable.
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We've determined that they're ok. At first they looked like they were cracked but it was actually the aluminum from the pistons. The valve hit once, creating a ridge then hitting that ridge again and flattening it to appear to be a crack.
 
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