Bmw m62 non vanos cam impulse wheel angle position at TDC
Cam timing has been completed and wheel timing where the cam timing angle sensor reads from is not listed and special tools are not provided should be made clear that in which direction the wheel should be mounted
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Lots of guesswork here.
Firstly, have you checked for compression on all cylinders.
If compression is low or non exisistant then you have a major problem probably caused by the timing chain slipping and causing damage to the valves /pistons etc
I would do this first.
Roger
Assuming you have a 1996 328i convertible based on your photo as there were no US 96 328is.
It is located at the left front end of the the engine cylinder head under the plastic cover behind the VANOS solenoid next to the top of the oil filter housing. In addition to the new sensor, you will need new metal o-rings for the VANOS line, a new rubber o-ring for the camshaft sensor and perhaps a new socket head cap screw if you round out the internal hex trying to loosen this Loctited screw.
See Figures 1 & 3 at the following Pelican Parts link.
http://www.pelicanparts.com/bmw/techarticles/101-Projects-14-Cam-Sensor/101-Projects-14-Cam-Sensor.htm
The M42 and M46 engines have the twin vanos pulleys and require locking tools to lock the crank and cam shafts inot the correct position. There are no timing marks on these as they are floating pulleys- ie they have no key locating the pulley in a specific position on the cam. Unless you make accurate marks during stripping there is very little chance you will be able to get the cam timing right on this engine without the cam locking tool kit.
It could be that you have a problem with the VANOS system, that is the variable valve timing system on the engine. That system relies on the cam position sensors to work properly. Best to get it checked out by a BMW expert.
I had the same issue with my 2000 528i. You more than likely need to have the Vanos seals replaced. BMW will tell you that the Vanos unit needs to be replaced but the problem is more than likely isolated to the OEM seals that shipped with the Vanos. This issue has been reported by several BMW owners. This issue has been thoroughly documented and reported to BMW in an effort to seek a corrective fix. Since BMW failed to address the problem, the guys that investigated the issue started their own company providing superior Vanos seals to the deficient OEM Vanos seals.
The company is Beisan Systems, LLC. I ordered their Vanos seal kit and had them installed at a local BMW performance shop for less than half of what BMW wanted to charge me for a Vanos replacement with the same faulty seals. Besian also provides step-by-step DIY instructions; if you have the time.
with no1 at TDC mark is on balancer and can take off top cam belt cover to check that cam gear is timmed on mark at 12 O clock there is notch in edge of flywheel that should be put at 6 O clock (facing down) it is hard to see with flywheel on engine look closely
there should be a right angle sensor on the right hand side of the vanos unit [im picking it's a vanos] and you are standing in front of the car. get a 5mm maybe 6mm allen key and undo the single bolt holding it to the engine. it sholuld slide out easily. then follow the lead under the intake manifold & unplug, can be a bit of a pain to get to but is possible. then install new sensor in reverse order.
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