Archer, It is very hard to get the timing out of wack between the crankshaft and the injection pump! This, because the chain is held in contact with the IP timing gear with a screw ( that you can see penetrating the housing bulge on the driver's side), and the very small clearance where the chain goes around the crank gear. The camshaft can easily be put back in time by matching up the timing marks on the crank and the cam when you get the new chain in. As mentioned, if the cam is more than two teeth off you will experience valve contact with a piston. Not to worry, just back the cam up two teeth and you should be able to continue.
NOTE: I used a bungee cord fastened overhead to pull the old chain out. Just stretch and rehook every foot or so. Therefore, pull both both ends of the chain tight and continue with the install of the new chain. You have at least a 95% chance of success. When you get both ends of the new chain visible you can hook both ends together over the cam gear. If you are able to turn the engine, get it to the TDC mark on the crankshaft. Then verfiy the timing marks have lined up on the camshaft. You may have to remove the cam gear to correct this, hopefully it is out only 1 or two teeth. With both sets of the factory timing marks aligned, at TDC, and the tensioner reinstalled, you should be able check for mechanical interference by turning the engine over manually through at least two revolutions. both sets of timing marks should now line up each TWO revolutions. ALways rotate the engine in a direction that would tighten the crankshaft nut! Start it up! Jim in Phoenix td -----Original Message----- From: Mitch Haley <[EMAIL PROTECTED]> To: Mercedes Discussion List <mercedes@okiebenz.com> Sent: Sat, 12 Jul 2008 11:43 am Subject: Re: [MBZ] Timing chain problem Archer wrote: > No, it goes over the engine at a sharp angle and the chain stays in contact > with the cam. The chain you're feeding in needs to keep the cam in time. The chain that's coming out needs to stay tight or it can jam. Are you doing both of these things? Some guys will go as far as to string the outfeed to the ceiling under tension, and tie the infeed to the cam, stopping every cam sprocket hole to untie it from one hole and tie to another hole. _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
