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Discussion Starter · #1 ·
I started her up, she sounded like a turbodeisel silverado, no joke. went to drive down the street, got louder, didn't have all my power, and the shifting was funky, almost had to let off the gas to have it switch gears(auto). Here's what i found under the hood. The camshaft belt casing was wide open, and not in the sense that it was unscrewed or something like that. IT looks as if the belt had slipped off almost, but just enough to slide over and carve into the cambelt casing, all the way through. The plastic casing has a precise incision that follows the belt around its gears. The plastic casing is melted back, really wierd. Has AAAAnybody seen this happen ever? any tips are helpful, as of now my car is like a paper weight keeping my driveway from blowing away. not about to start her up again. <br>scary! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0"> <p><IMG SRC="http://i25.photobucket.com/albums/c98/biggerhurt38/cambelt********ed.jpg" BORDER="0"><br><IMG SRC="http://i25.photobucket.com/albums/c98/biggerhurt38/cambelt****edup.jpg" BORDER="0"><br><IMG SRC="http://i25.photobucket.com/albums/c98/biggerhurt38/cambeltfucccckedup.jpg" BORDER="0"><BR><BR>
<i>Modified by biggerhurt38 at 9:56 AM 4-14-2006</i>
 

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Re: my 98 c70 sounds like its turbo deisel right now (biggerhurt38)

Wow, I think you've been really lucky here... take the casing off and see what's causing it, I would replace the timingbelt and all the other things that needs replacement...
 

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Yes, I agree that you were really lucky. How many miles since the last timing belt change? How many miles on your C70? Tensioner on these have a clip (or at least there's a clip in there somewhere) don't they, to keep this kind of thing from happening? Maybe it wasn't replaced??
 

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I'd be takin the whole head off, replacing the valves.. and whatever else got fubared. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0">
 

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Re: (the underlord)

seen it a few times. most of the time the timing belt tensioner has gone bad. if you remove the cover you will find a bunch of ball bearings. and i would say the diesel sound you heard was the valves being hit as the underlord has stated. you could always see if the motor is still in time and if so you may have gotten lucky.
 

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Discussion Starter · #6 ·
Re: (MadeInJapan)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>MadeInJapan</b> »</i></TD></TR><TR><TD CLASS="quote">Yes, I agree that you were really lucky. How many miles since the last timing belt change? How many miles on your C70? Tensioner on these have a clip (or at least there's a clip in there somewhere) don't they, to keep this kind of thing from happening? Maybe it wasn't replaced?? </TD></TR></TABLE><p>I have nearly 100k on it right now, the belt was changed at factory suggested time, forget what that is, like 70 or 75k, so it's not very old. When i pulled back the casing i noticed the belt had been getting chewed up along the edge where it slid over and cut open the casing, so yeah, that clip, not workin so hot. you could be right, maybe that clip wasn't checked or replaced
 

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Discussion Starter · #7 ·
Re: (ovlovtech)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>ovlovtech</b> »</i></TD></TR><TR><TD CLASS="quote">seen it a few times. most of the time the timing belt tensioner has gone bad. if you remove the cover you will find a bunch of ball bearings. and i would say the diesel sound you heard was the valves being hit as the underlord has stated. you could always see if the motor is still in time and if so you may have gotten lucky. </TD></TR></TABLE><p>I drove my car this way for 1 block, i'm sure you guys couldn't say how bad the valves got damaged, but if you would know what it takes to screw up your valves let me know. gotta find a way to tow this baby in to check her out. Any rough guesstimates on how much it'd prob cost if this is the case? belt, tensioner clip, valves?
 

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I know it's a small (very small compared to an engine reguild) cost but I would have them change the tensioner, roller and timing belt (this time with the clip) and see if the car drives normal before opening it up and checking for interior damage. If things are okay, then you've not lost anything. If things are fubarred (as someone so eloquently put it) then you're going to have to open her up anyway and you can at least re-use the new parts you just bought. <p>Don't know where you took it last time for the TB, but this time, take it to someone else who's reputable unless you want to hassle with the guys who changed it and possibly "caused" this. If you changed it yourself...my apologies....
 

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Re: (MadeInJapan)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>MadeInJapan</b> »</i></TD></TR><TR><TD CLASS="quote">I know it's a small (very small compared to an engine reguild) cost but I would have them change the tensioner, roller and timing belt (this time with the clip) and see if the car drives normal before opening it up and checking for interior damage. If things are okay, then you've not lost anything. If things are fubarred (as someone so eloquently put it) then you're going to have to open her up anyway and you can at least re-use the new parts you just bought. <p>Don't know where you took it last time for the TB, but this time, take it to someone else who's reputable unless you want to hassle with the guys who changed it and possibly "caused" this. If you changed it yourself...my apologies....</TD></TR></TABLE><br>that's a very bad idea. If the valves are bent and I'm certain they are, you're just asking for more trouble.
 

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Greg,<br>The way the belt came through the cover would you be certain that the belt skipped some sprokets? I wasn't and so that's why I posted that. I know that you know much more than me about engines, so I trust your judgment.
 

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Re: (gdogg16)

I would say it would only take the piston hitting the valve once to bend it. But I guess wierder things can happen too and it could be ok.You could install a new tensioner and belt see how it runs but I wouldnt waste my time doing that. You should have the shop do a compression check/ leakdown test to let you know for sure.. and also find out if the engine is still in time or not. If there is a bent valve you will have low or no compression. And they will hear the air leaking out the valves with a leakdown check.At least this diagnosis would save you money if you did not want to spend the money to remove the head and repair/replace it.
 
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