BMW M50/S50 Camshaft Timing Guide 

That probably the best instructional automotive video I think I have ever watched. Great job. !

Thank you for an excellent tutorial, you saved the day and us from an expensive mistake.

Wow, very good video CaligulaE36. I don't know what Hakentt is talking about. The video was an immense help.

Man, I NEED to hire you to fix my 99 323 engine, this is a SERIOUS headache for someone like me who is used to working on chevies!!!! Good video though, it helps IMMENSELY!!!

great job, on video,,,, i have a 1997 bmw 528i, sucks but this video gives an idea, wish it was that easy, no-one on this area works on these kidns of cars!

Wow. I will probably play this while doing my head gasket.

Well they did use leaded higher octane fuel, but they did rallies with them. Of course the honda engine can't be that torquey at the same revs as a 2litre 140hp family car, or else it has some serious space technlology under the hood. The key is to shift the powerband up, you can have the same torque but at higher revs making double the power if the revs are doubled. Anyway I don't doubt the N/A tuning capabilities, it's always a compromise in some area, but everything can be tuned :)

BMW keeps it old school. That's why they last so long.

Great video, I am still some what confused, such as how you lined up the camshaft's before placeing the cam locks on them.

Thanks a bunch - really helpful video! Why do you need the primary exhaust sprocket to be all the way clockwise though (at 1:00 min), you're locking it to the camshaft after the vanos install and it's permanently fixed to the crankshaft (thru the two chains - the long and very short one), correct? The The exhaust camshaft does not change it's relation to the crankshaft therefore it shouldn't matter where in the hole the screw is. The whole point of the wide opening is to be able to position the exhaust camshaft precisely (since the length of the long chain can vary slightly from engine to engine) and nothing else, right?

THANK YOU!!!

Hello Thank you for the tutorial. Now im just wondering in what posistion should the pistons be when I install the camshafts than you

Back in the 60's/70's were they restricted by cats? What fuel did they run? How long did the engines last with those mods? Only N/A stock engine with that kinda power/weight ratio I can think of is the engine from the S2000.

Hey! Thanks for the video. Was very helpful. We did everything according to this video - but we're facing new sort of problem. The engine still is doing ticking sound. (I had my BMW run on 5 cylinders). Could it be the hydraulic lifters?

If I wanted to disable VANOS, couldn't I just prevent these sprockets from moving, and unplug the solenoid controlling the oil flow to VANOS?

I know the engine has to be locked at TDC but are the cam locking blocks attached during this procedure as well?

Hi, i've just done a head gasket on my e34 525i with Vanos. When reassembling the secondary timing chain sprockets and inserting the vanos unit i simply threw the sprockets on making sure the slack in the chain was at the top, inserted vanos then tightened up all the bolts. My worry came after seeing your video. You aligned the sprocket holes to the left. is this important? Does this apply to intake and exhaust sprockets?

Just wondering how you wired in the electric fan? I installed one but it has constant power when the ignition is on. How was yours done?

How much power is it possible to get out of a 2,5litre m50b25? About 300 with head, valve, cams and ignition system? I know it seems high but people had +200hp 1,6litre tuned N/A cars in the 60-70's..

Do you have a video or instructions on how to install the timing chain(s)? I'm working on an engine that was partially disassembled and I need to install new chain(s). Does the the link pin have to be pushed out with a chain breaker, or is there a different installation procedure? I'm used to older M20 engines with a belt.

I'm Curious. Do you have the lower tensioner in when the sprocket is installed on the exhaust cam? Do I rotate the sprocket counterclockwise (keeping tension on the chain to the right side of the sprocket) when lining up the slots to be justified to the left? This is at 2:08.

i think that M50 have 1 cam shot?

is this single or double vanos ?

Will the s52 be the same as this?

@CaligulaE36

Hey

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