![]() ![]() Try doing a Google search using "E36 no compression vanos" and you'll get lots of hits with info on Vanos issues. I haven't experienced this personally (thank goodness) but I've seen posts where people had no start/ no compression from a vanos issue. From what you've described it sounds like a problem has developed in the Vanos mechanism and while the alignment of the Vanos input sprocket looks OK, the actual intake cam timing is in the fully advanced position (or farther) and you're never getting both valves completely closed during the compression stroke. There's a solenoid that controls the Vanos that gets switched at 3K rpms to enable the intake cam timing advance. The concept is to have relatively mild cam timing at low RPM for good idle characteristics, but have some intake/exhaust overlap at higher rpm for improved scavenging of exhaust gases and improved intake of fresh fuel mix. Inside the Vanos is a mechanism that uses hydraulic pressure from the oil system to change the timing of the intake cam with respect to the Vanos input sprocket. M50/M52 engines) Beisan S50B32 Vanos Seals Repair Kit (BS041) 0 out of 5. The upper timing chain goes to the sprocket which is bolted to the exhaust cam and to the Vanos input sprocket. BMW E36 320 325 328 M50 M52 Individual shaftless 45mm throttle body kit ITBs. And even if they end up with a slight leak, the oil leaks into the oil pan.Ok, that info helps. The original gaskets are typically in great shape. They have the correct flange on the head, proper plating that won't flake off, and quality control. I've ordered kits with bolts several times, only to decide that the original bolts were a better choice. ![]() I put little value on the additional parts. They stretch a bit, but you have to stretch and compress the new ones as well. BTW, it's usually possible to remove and reuse the sliding seals with negligible damage. But the existing part doesn't wear out, it's the o-ring underneath that stops applying pressure. The system variably adjusts the timing of the valves by changing the position of the camshaft relative to the drive gear. The sliding seal is a semi-custom part that needs to be cut to spec. Rebuild E36 Vanos Code N54TUNERS At Rebuild E36 Vanos How To Fix Them What the hell is BMW VANOS The BMW VANOS (variable nockenwellen steuerung in German) is a variable valve timing technology developed by BMW. I don't think that anyone is sourcing something substantially better, and they probably aren't selling fake ones (e.g. The energizing o-rings are the part that fails. I used several different types of kits over the years, from the high end to $15 eBay kits. ![]()
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