Mercedes-Benz Forum banner

1 - 12 of 12 Posts

·
Registered
1985 380sl
Joined
·
247 Posts
Discussion Starter #1
Hi, trying to measere chain streach, found the timing marks but what is the size of the bolt on the cam shaft that I m turning to find tdc? Im working blind because as you know the nut to turn the cam is resessed in.
Thanks again for all ur help.
Rick
 

·
R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
Joined
·
32,324 Posts
You don't turn the cam bolt. Rotate the engine clock wise only. Crank bolt is one way. Others have suggested removing spark plugs and turning with the power steering pump bolt. Pretty sure the crank bolt is 27 mm (1 1/16" U.S.)
 

·
Registered
1985 380sl
Joined
·
247 Posts
Discussion Starter #5
Is the crank bolt on the bottom part of the engine? I think
im calling that the cam. So the overhead cams are under the valve covers right and the crank is on the bottom of the front of engine, below the fan belt.
 

·
R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
Joined
·
32,324 Posts
You don't turn the cam bolt. Rotate the engine clock wise only. Crank bolt is one way. Others have suggested removing spark plugs and turning with the power steering pump bolt. Pretty sure the crank bolt is 27 mm (1 1/16" U.S.)
^^^
 

·
Premium Member
1983 380SL, 2000 S430, 1991 420SEL (retired) - RHD
Joined
·
5,506 Posts
In addition to the valve covers you need to remove the fan and clutch , remove the spark plugs and disconnect the battery. The 27mm socket for the crank will need a 5 or 6 inch extension. Put a piece of cardboard in front to protect the radiator as the socket often comes loose .
 
1 - 12 of 12 Posts
Top