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#1
06-02-2003, 12:55 PM
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I need Mechanical help with 2.6L engine for a 1993 190e
Two questions:
I pulled the cylinderhead for a rebuild job out of my 93 190e with 2.6L engine. Everything went smooth except three things: 1) how do you get the threaded ring in the tensioner assembly? 2) When I removed the cylinderhaed bolts, there were no washers between them and the head. Is this right or there should be washers! 3) while getting the pressed pin that holds the timing chain guide rail, I broke the plastic guide. I believe I need to remove the lower timing cover to get to it. Do I need to remove everything in the front of the engine including the Vibration dampner to get to it? Any advice would be appreciated. PS. I will post pictures of the work that I did after the car is up and running to help other members.
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Meza 1993 190E 2.6 Advanced Diesel Systems Test and Research Engineer 
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#2
06-02-2003, 01:10 PM
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1) 17mm hex head socket (to 30Nm, I think). You might be able to fashion a tool out of a 17mm head bolt and a couple of nuts.
2) No washers. 3) Yes. You can't use the stacked washers method against the rail without risk of damaging the rail. Use a bridge. But I guess it's too late. Sixto 91 300SE 87 300SDL 83 300SD
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#3
06-03-2003, 07:12 PM
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Thank you Sixto for your tips. I have a 17mm hex and it did the job easily.
I have proceeded with removing parts from the front of car. what a job. Parts removed so far: Bumper, radiator, fan clutch, fan clutch pulley, bracket hoding the fan clutch, power steering pulley, crankshaft pulley, alternator, air pump, and waiting on a special MB tool that holds the flywheel from moving ($136.00) so I can loosen the vibration damper bolt. So, pretty much everything in the front including the cylinder head that was dropped off in the machine shop to have the guides, stem seals, springs, 3 angle valve job, ..etc done. I plan to change the oil pan gasket too and replace both transmission cooling lines after noticing a fluid on tranny both, timing cahin and tensioner. All that because of a broken small plastic timing chain guide. I guess I'll know I won't have anymore oil leaks. I will have pictures of before and after I am done with the car. Thanks again Sixto
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Meza 1993 190E 2.6 Advanced Diesel Systems Test and Research Engineer
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