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#1
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602.9XX Banana Rail R&R - Remove Crank Pulley?! - Tell me it Ain't so Ma!
Preparing to change T/C rails (all) in OM602.911 - while reading the FSM it says T/C cover needs to be removed, OK - go to (01-210) and...
- Preliminary operations: Engine compartment capsule, bottom section removed (01-006). Radiator removed (20-420). - check Magnetic or viscodrive fan clutch removed (20-335, 20-312). - check Crankshaft pulley and hub removed (03-341). - what!? Poly-V-belt tensioning device removed (13-345). - check Piston vacuum pump removed (43-618). Power steerng pump or tandem pump removed (46-710). Hydraulic pump on cylinder head removed (05437). Alternator removed (15-510). Engine Oil drained. Any way around this? It looks pretty complicated to get that thing back on and still be able to see where TDC is. I may as well have pulled the engine... Any help appreciated... - geoff
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327K on 1986 W201, 602.911, 722.414 2.5 190D ("The Red Baron") 139K on 1993 W124, 104.942, 722.433 2.8 300E ("Queen") http://farm5.static.flickr.com/4081/...0bb92d3c_m.jpg http://i370.photobucket.com/albums/o...g?t=1325284354 Do not worry about your difficulties in Mathematics. I can assure you mine are still greater. - Albert Einstein take a walk down memory lane... |
#2
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Yes that is required on any OM60_series engine.
Hopefully you can remove the lower pin that the rail rides on, OR the head will have to be removed as well!
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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Thanks - I am in the process of rebuilding the top end, all brought on by oil in the coolant - so the head is coming off anyway. For a second there I was worried that pulling the engine is mandatory as well, but I think I can manage by just pulling the crank pulley and getting the T/C guide rails out to replace. Hopefully, further inspection will not mandate repairs that require removal of the engine. The Timing case cover and the oil pan gasket junction is a region that I am worried about getting perfect upon re-install.
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327K on 1986 W201, 602.911, 722.414 2.5 190D ("The Red Baron") 139K on 1993 W124, 104.942, 722.433 2.8 300E ("Queen") http://farm5.static.flickr.com/4081/...0bb92d3c_m.jpg http://i370.photobucket.com/albums/o...g?t=1325284354 Do not worry about your difficulties in Mathematics. I can assure you mine are still greater. - Albert Einstein take a walk down memory lane... |
#4
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Yes, it's true. It's a PITA, and MB could've designed it so the rail could come out without removing the cover first.
I don't know why you are concerned about the crank pulley in particular. There's nothing about timing involved... it only goes on one way. You'll need to keep the engine from turning somehow to get the bolt removed and installed. That's a trick without the special tool.
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1987 W201 190D |
#5
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PS... I was concerned about the joints between the timing cover and block and pan also. The FSM calls for Hylomar. I would've normally used RTV (silicone), but I followed the manual and used Hylomar. About 5k miles so far, no leaks.
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1987 W201 190D |
#6
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well, I finally got to my tensioner rail to see wear/tear and here are pics. Bottm line, I don't want to have to replace it if it is not necessary. The engine has 247K. I have determined that I should replace the chain - 3-1/2 degrees out from TDC - because I don't want to have to deal with it in about 70K miles.
Question is, should I pull the timing cover and replace the tensioner rail? Thanks in advance for any help...
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327K on 1986 W201, 602.911, 722.414 2.5 190D ("The Red Baron") 139K on 1993 W124, 104.942, 722.433 2.8 300E ("Queen") http://farm5.static.flickr.com/4081/...0bb92d3c_m.jpg http://i370.photobucket.com/albums/o...g?t=1325284354 Do not worry about your difficulties in Mathematics. I can assure you mine are still greater. - Albert Einstein take a walk down memory lane... |
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