Vanos rattle solved
Vanos rattle solved
Hi, I am a mem,ber from sweden and I read on a swedish forum as well. I just read a post that has solved our vanos rattle, I have done it and it worked wonderfull. from my vanos there is just silence. How to do it?
http://www.realoem.com/bmw/diagrams/i/o/42.png On part 2 on the top there is a hex 6mm (I think) loosen the locknut turn hex out for 1/2 counter slowly then you can hear the rattle disappear. tighten the locknut and you are done. You must take the engine to normal drive temp and have it idle turn slowly and listen. I turned my hex nearly 3/4 counter.
Kennet
http://www.realoem.com/bmw/diagrams/i/o/42.png On part 2 on the top there is a hex 6mm (I think) loosen the locknut turn hex out for 1/2 counter slowly then you can hear the rattle disappear. tighten the locknut and you are done. You must take the engine to normal drive temp and have it idle turn slowly and listen. I turned my hex nearly 3/4 counter.
Kennet
mmm so you adjust the main PRV setting to solve the rattle? Increase the pressure and you risk blowing the covers off the solenoids (with complete engine oil loss), or reduce the pressure and the Vanos no longer functions. Maybe I'm missing something...
Z3M with a few mods...and a little bit more power
The rattle is coming from gears behind vanos and depends on a spring that have lost elasticity over time. Spring decide how much oilpressure. Softer spring = low pressure and to much clearance between gears = rattle. to compensate for soft spring one can adjust oilpressure upp to normal level. Or one can buy a new vanos, I dont think one can buy just oiloressure regulator. This is not my idea I just fel that everyone that have a s50 can enjoy a silent vanos,according to swedish Autopower the tip come from Germany to Autopower. http://www.autopower.se/forum/topic.asp?id=241942 Here is a translation of one reply.
Believe it is because there currently is vacation time. It had certainly been more pull in this thread otherwise.
The solution to the vanos rattle has been with the mechanics of the BMW workshops in Germany for at least 15 years (according to member of German forum) but has apparently had a duty of confidentiality or the like thereof. And here in Sweden "has no idea" about this when I asked.
I got a tip via pm to try this by starting a thread in a German forum about my problem. Where it was apparently quite well known method among member why.
One can in retrospect to wonder how many vanosenheter who replaced unnecessarily. The fact that many engines have been replaced due vanosras, well. Read the bottom bracket race instead. Vanosras is a concept that apparently only exists here in Sweden, unfortunately.
To send the device to Dr. Vano is reportedly 200-300 mil then rattle back (pressure). Changing the oil viscosity / oil the 100th mil then will rattle (print again).
Rattle is well known that the pressure in the unit has become too low over time and mekaninken loose in it, hence the rattle.
What I am looking for full right now is what the pressure will be on the vanosenheten so it is possible to measure and obtain a more precise adjustment of pressure.
And for those of you who have not tried, like bums with a 19mm wrench and 6mm Allen key and adjust the engine is warm. It works! We S50 owners should not have to be ashamed of rattling vanos!
Believe it is because there currently is vacation time. It had certainly been more pull in this thread otherwise.
The solution to the vanos rattle has been with the mechanics of the BMW workshops in Germany for at least 15 years (according to member of German forum) but has apparently had a duty of confidentiality or the like thereof. And here in Sweden "has no idea" about this when I asked.
I got a tip via pm to try this by starting a thread in a German forum about my problem. Where it was apparently quite well known method among member why.
One can in retrospect to wonder how many vanosenheter who replaced unnecessarily. The fact that many engines have been replaced due vanosras, well. Read the bottom bracket race instead. Vanosras is a concept that apparently only exists here in Sweden, unfortunately.
To send the device to Dr. Vano is reportedly 200-300 mil then rattle back (pressure). Changing the oil viscosity / oil the 100th mil then will rattle (print again).
Rattle is well known that the pressure in the unit has become too low over time and mekaninken loose in it, hence the rattle.
What I am looking for full right now is what the pressure will be on the vanosenheten so it is possible to measure and obtain a more precise adjustment of pressure.
And for those of you who have not tried, like bums with a 19mm wrench and 6mm Allen key and adjust the engine is warm. It works! We S50 owners should not have to be ashamed of rattling vanos!
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- Joined: Mon 02 Jun, 2008 20:35
- Posts: 91
- Location: york
Mr vanos
Very interesting. Just got my car back from (Mr Vanos) Darlington after full vanos overhaul, replacement seals etc. Its quiet as a mouse now, smoother and seems more responsive. First class job would recommend Steve to anyone that has vanos problems. What he doesnt know about the vanos isnt worth knowing. Now I just need to find time to drive it and enjoy it. [/list]
After some test and investigation it seems like it is to by a new regulator, or just do the adjustment.Some guys here in sweden has done it and we think it is the ultimate solution for our problem. why have it not come up before? It is a very simple thing to do.
It is just thing that I have in my mind, why is there not a bigger interest for this then 2 different post in this tread? Do you think the swede are trick you?
kennet
It is just thing that I have in my mind, why is there not a bigger interest for this then 2 different post in this tread? Do you think the swede are trick you?
kennet
- hornel Z3M
- Joined: Sun 16 May, 2004 20:33
- Posts: 1120
- Location: RAGLAN
m
Hi boanke. We are all very interested in the vanos issue. I had my vanos serviced a couple of months ago and i feel it is not a problem as i dont notice any noises or rattles, i also think all M owners do there own thing with their vanos issues.
To be honest my knowledge about the vanos is very limited. Mine has a small but annoying growl approximately 1200 -2000 rpm. I am waiting to have the pennies for mr vanos to repair mine.boanke wrote:After some test and investigation it seems like it is to by a new regulator, or just do the adjustment.Some guys here in sweden has done it and we think it is the ultimate solution for our problem. why have it not come up before? It is a very simple thing to do.
It is just thing that I have in my mind, why is there not a bigger interest for this then 2 different post in this tread? Do you think the swede are trick you?
kennet
Interesting post made here about a simple cure for the growl but not possessing enough knowledge on how the internal workings of how the vanos works does make one think twice about doing this mod as I would be concerned about blowing my solenoid seals and I'm sure other members have doubts too due to lack of knowledge and a s50 is expensive to replace if it goes wrong. What is needed is a better explanation on how this mods works.
If you like gaming with mature minded players visit our retirement home http://www.oap-clan.co.uk/
Not at allboanke wrote: why is there not a bigger interest for this then 2 different post in this tread? Do you think the swede are trick you?
kennet
Gazza
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
Hi
Here is the latest from sweden. the discussion i now about that if one do this mod the rattle is gone but the pressure is not rised but lowered. That is not the ultimate solution. quite many has done it my self included. The silence from engine is a blessing and I havent noticed any loss of power.
boanke
Here is the latest from sweden. the discussion i now about that if one do this mod the rattle is gone but the pressure is not rised but lowered. That is not the ultimate solution. quite many has done it my self included. The silence from engine is a blessing and I havent noticed any loss of power.
boanke
Re: Vanos rattle solved
Update about pressureregulator. I have now bought a new pressureregulator for vanos and mounted it yesterday. I noticed that idle became a bit lower and vanos rattle little quieter. But now I really know vanos oilpresssure is right.