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  #1  
Old 07-12-2006, 07:09 PM
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C280 camshaft

A friend of a friend has a C280 1996 with a broken exhaust camshaft. Apparently she took it to a shop that is now out of bussiness for an oil leak, $1000 later the car does not run and the guy closes his shop.
Another shop has ripped the engine apart enough to expose the cam sprockets and says they don't want to tackle the job.
Here are my questions. Is this an interference engine? Does it have hydraulic cam followers? If valves are bent whats the book rate to re and re the head?

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  #2  
Old 07-12-2006, 10:07 PM
MB WRENCH.
 
Join Date: May 2005
Location: OREGON
Posts: 137
yes and yes.
The average time to pull that head off is 12.5 hours. Doesn't include D/A of the head.
Sounds like they may have Effed up the chain tensioner. Happens when someone doesn't know how to reset the tensioner before re-installing.
You may need to R/R the entire front cover and replace chain guides/chain as well. Good luck.
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  #3  
Old 07-12-2006, 10:16 PM
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Sounds like a bum deal. The Mercedes service literature describes the hollow camshafts as "very breakable", and require special care taken during installation. The 104 is an interference engine but if the camshaft broke during install, the valves could still be ok depending a lot on where it actually broke. If the broken piece isn't holding any valves open very far there may be no damage. I'd source a camshaft, install it, and do a compression test to see if any valves bent. If the head has to come off I think most shops bill 12 hrs. If it were on the other side of the Rockies you could bring it to "my" shop. The boss doesn't call me "104" for nuthin'
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Old 07-13-2006, 12:10 AM
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Quote:
Originally Posted by duxthe1
Sounds like a bum deal. The Mercedes service literature describes the hollow camshafts as "very breakable", and require special care taken during installation. The 104 is an interference engine but if the camshaft broke during install, the valves could still be ok depending a lot on where it actually broke. If the broken piece isn't holding any valves open very far there may be no damage. I'd source a camshaft, install it, and do a compression test to see if any valves bent. If the head has to come off I think most shops bill 12 hrs. If it were on the other side of the Rockies you could bring it to "my" shop. The boss doesn't call me "104" for nuthin'
Thanks for the info. Where do you work at? I was a mechanic in denver for years mostly Landrover and Audi. I hope you dont work for Shandor.
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Old 07-13-2006, 11:35 AM
MB WRENCH.
 
Join Date: May 2005
Location: OREGON
Posts: 137
What's wrong with Shandor? I've only heard great things about him. I worked in Denver for five years, never at his shop but always heard good things about Startech.
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  #6  
Old 07-13-2006, 08:54 PM
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Actually I do work for Sandor. I don't know why anyone would disparriage him, he is a great boss, a great person, and his biggest failing is that he is too willing to help some who don't deserve it.

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