Feedback on Beisan Vanos seals replacement

[Herbert]

When are my seals arriving herbert?

Bro John,

Delivery expected end of July if all qty (refer to 4th group buy) taken up by 3rd week of July.

 

[jaleeks23]

Did the seal replacement on my M52B28. Initial impression was better low end torque and fuel consumption. As the weeks went by the engine felt lighter and more responsive to throttle inputs.

For full run in it took me about 1500kms. Now the car drives like it had an engine transplant.

Best maintainence item I have done to date.

*Note: the run in works better in urban conditions as the seals are subjected to variable load. On the highway, the load is constant.

Thanks Herbert!

Thank you for the tip....
Subjected the run-in to variable conditions, start/stop/accelerate and have covered about 900km on the new seals, drove up to Penang and back....
SUPERB! Smooth, better torque feel and FC was also better.....Though am not sure if this was only due to the vanos seals because I had to change my air-valve and 2 air hoses before going outstation as both the hose cracked and the air-valve not working properly, sometimes when I start the car, white smoke comes out, this was due to the air-valve.
Mileage was 60lits for 650km, from KL to penang, then penang traffic then halfway back to KL, refuel in Tapah. Drove from KL to Penang averaging 150kmh and the drive from Penang to Tapah, averaging 120kmh, due to high traffic.
After refuel, from Tapah to KL, average 150kmh and mileage was 11lit for 160km.
Vanos seals well worth the money spent - BTW, I changed the seals before I changed the airhoses and air valve so I could feel the difference the vanos seals made though it wasn't properly run in yet that time.

 

[Herbert]

Justin,

Thanks for your feedback and glad to hear your ride's performance, consumption and torque has improved. As for my ride, I did get a better and smooth low end torque but I was also expecting a better fuel consumption (12.7 L/100km). I related this issue to Beisan and was advised to check & replace the pre-cat O2 sensors. A computer scan of my O2 sensors indicated that both were working fine. However what the computer was unable to verify was whether the O2 sensors have degraded. Bosch published that O2 sensors will degrade after 100k milles and mine was already at 212k km. Replaced O2 sensors with Bosch OEM and consumption now -- highway drive average 140km/hr 9L/100km. City drive start/stop/heavy footing on acc pedal - 12.3 L/100km.

 

[bimmerholic]

Justin,

Thanks for your feedback and glad to hear your ride's performance, consumption and torque has improved. As for my ride, I did get a better and smooth low end torque but I was also expecting a better fuel consumption (12.7 L/100km). I related this issue to Beisan and was advised to check & replace the pre-cat O2 sensors. A computer scan of my O2 sensors indicated that both were working fine. However what the computer was unable to verify was whether the O2 sensors have degraded. Bosch published that O2 sensors will degrade after 100k milles and mine was already at 212k km. Replaced O2 sensors with Bosch OEM and consumption now -- highway drive average 140km/hr 9L/100km. City drive start/stop/heavy footing on acc pedal - 12.3 L/100km.

Fantastic consumption bro!. What was the damage like for the 2 O2 sensors? Cheers.

 

[jaleeks23]

Justin,

Thanks for your feedback and glad to hear your ride's performance, consumption and torque has improved. As for my ride, I did get a better and smooth low end torque but I was also expecting a better fuel consumption (12.7 L/100km). I related this issue to Beisan and was advised to check & replace the pre-cat O2 sensors. A computer scan of my O2 sensors indicated that both were working fine. However what the computer was unable to verify was whether the O2 sensors have degraded. Bosch published that O2 sensors will degrade after 100k milles and mine was already at 212k km. Replaced O2 sensors with Bosch OEM and consumption now -- highway drive average 140km/hr 9L/100km. City drive start/stop/heavy footing on acc pedal - 12.3 L/100km.

thanks herbert....my mileage now is close to 219k km. will see how it goes...if i calculate my average mileage, it is about 7lit/100km....for a 2.2, GOOD! but the power and torque.....superb! never felt like this before until now that I've changed the vanos seals!

 

[Herbert]

Fantastic consumption bro!. What was the damage like for the 2 O2 sensors? Cheers.

From BA, they quoted OEM Bosch RM 480.00 per pc. Original with BMW logo (also Bosch) RM 1,200 per pc.
I bought mine from internet online store at US$ 70.00 per pc.

 

[Herbert]

thanks herbert....my mileage now is close to 219k km. will see how it goes...if i calculate my average mileage, it is about 7lit/100km....for a 2.2, GOOD! but the power and torque.....superb! never felt like this before until now that I've changed the vanos seals!

7 L/100km is FANTASTIC for a 2.2, 6 potters car.

 

[John_Smith]

Changed vanos seal for M52B28 yesterday. The old seals were hardened, like bottle cap ring and to a point brittle. Initial reaction, after changing was the accelerator pedal was smooth. I am keeping gear changes to be below 2.5k rpm until it has been run-in. My next oil change is about another 1.2k km away, so, I would expect better performance after oil change.

For those of you who are intending to change the seal, change the valve cover gasket and the valve cover screw rubber o-ring as well. There are 15 rubber o-rings. Since already open up the valve cover gasket, it is recommended to change them.

I will report from time to time, what I felt after changing the vanos seal.

 

[loafer]

Changed vanos seal for M52B28 yesterday. The old seals were hardened, like bottle cap ring and to a point brittle. Initial reaction, after changing was the accelerator pedal was smooth. I am keeping gear changes to be below 2.5k rpm until it has been run-in. My next oil change is about another 1.2k km away, so, I would expect better performance after oil change.

For those of you who are intending to change the seal, change the valve cover gasket and the valve cover screw rubber o-ring as well. There are 15 rubber o-rings. Since already open up the valve cover gasket, it is recommended to change them.

I will report from time to time, what I felt after changing the vanos seal.

Don't need to keep your RPM below 2.5k la. I was rempiting like no tomorrow after I changed the seals. Shouldn't affect it much. You would want your vanos to be activated to further polish the seals a bit more. Although I'm not sure if that big aluminum block the seal goes on is in a constant rotating motion or not. Does any sifu know?

 

[bimmerholic]

Don't need to keep your RPM below 2.5k la. I was rempiting like no tomorrow after I changed the seals. Shouldn't affect it much. You would want your vanos to be activated to further polish the seals a bit more. Although I'm not sure if that big aluminum block the seal goes on is in a constant rotating motion or not. Does any sifu know?

I believe it's meant to be rotating. Else it wouldn't be rattling during idling for some of the owners. Also looking at the output shaft of the vanos unit, it has a gear slot at the end of it which is placed into the cam timing chain. Should rotate i think. Anyone can verify this?

 

[loafer]

I believe it's meant to be rotating. Else it wouldn't be rattling during idling for some of the owners. Also looking at the output shaft of the vanos unit, it has a gear slot at the end of it which is placed into the cam timing chain. Should rotate i think. Anyone can verify this?

True true. Maybe later I ask my mech and see if he can explain or not.

 

[John_Smith]

Don't need to keep your RPM below 2.5k la. I was rempiting like no tomorrow after I changed the seals. Shouldn't affect it much. You would want your vanos to be activated to further polish the seals a bit more. Although I'm not sure if that big aluminum block the seal goes on is in a constant rotating motion or not. Does any sifu know?

Haha! It's dreadful to keep the RPM below 2.5k.. lol! u've got a point to polish the seals a bit further upon vanos activation.

 

[loafer]

Haha! It's dreadful to keep the RPM below 2.5k.. lol! u've got a point to polish the seals a bit further upon vanos activation.

I know! But it's just a guess la from me! Not an educated one though so follow at your own risk!

 

[John_Smith]

This morning, my car developed symptom of rough idling when I was sitting at a jam. I have made a video recording, link: [video=youtube;uqzDd-j3vHk]http://www.youtube.com/watch?v=uqzDd-j3vHk[/video]. Other than that, the vanos was also making a grinding noise when idling. Occassionally, I felt jolt during idling as well.

I suspect these are the few causes:

a) vacuum leak somewhere

b) engine oil level low (i've checked last night, it was ok)

c) cam position sensor gone faulty?

Any other possibilities? It's a M52B28 motor.

I haven't got access to plug in the computer to find out if there is any error codes. Help!

 

[kayzhen911]

hi all....
juz got my seals replaced for my M54.
replaced valve cover seals and 15 o-rings...
all for below 300 including labour.
mechanic's response was better compression and tighter fit.
he was actually sceptical to this kind of change but convinced after looking at the outcome.
my first impression....
95% of sluggish low end torque disappeared!
FC...?
i gotta measure after i change my motor oil ( can we use semi-synthetic?)
im still running in the seals....
im sure it wont disappoint.
btw, i hv a hydrogen generator running in my E39 but when my seals were changed yesterday....
its was running without the hydrogen and response was short of astounding!
cant wait to get my baby down to Malacca this weekend.
cheers....

p/s for all the beemer owners out there still keeping the seals in their glove compartment,
like NIKE would say....Just Do It!
ur only regret is not changing the seals as quick.
thanx Herbert for letting us into this product.

 

[bimmerholic]

hi all....
juz got my seals replaced for my M54.
replaced valve cover seals and 15 o-rings...
all for below 300 including labour.
mechanic's response was better compression and tighter fit.
he was actually sceptical to this kind of change but convinced after looking at the outcome.
my first impression....
95% of sluggish low end torque disappeared!
FC...?
i gotta measure after i change my motor oil ( can we use semi-synthetic?)
im still running in the seals....
im sure it wont disappoint.
btw, i hv a hydrogen generator running in my E39 but when my seals were changed yesterday....
its was running without the hydrogen and response was short of astounding!
cant wait to get my baby down to Malacca this weekend.
cheers....

p/s for all the beemer owners out there still keeping the seals in their glove compartment,
like NIKE would say....Just Do It!
ur only regret is not changing the seals as quick.
thanx Herbert for letting us into this product.

Haha....i'm one of them...still haven't replaced mine...

p/s: where did you replace yours?

cheers.

 

[Herbert]

Kayzhen911,

Good to hear you are satisfied with the new seals and better to use full synthetic oil.

You pm me that you bought your Beisan vanos seals from a forummer. If you don't mind, can you let us know who is the forummer that you bought it from?? I lost 3 sets of Beisan double vanos seals to 2 Chinese conmen who came to my collection centre. One of the conmen ( a former banned forummer) has been positively identified by the collection staff. A police report has been lodged and investigation is ongoing. I just hope that you did not purchase your Beisan double vanos seals from the said banned forummer.

 

[harbhajan]

hi all....
juz got my seals replaced for my M54.
replaced valve cover seals and 15 o-rings...
all for below 300 including labour.
mechanic's response was better compression and tighter fit.
he was actually sceptical to this kind of change but convinced after looking at the outcome.
my first impression....
95% of sluggish low end torque disappeared!
FC...?
i gotta measure after i change my motor oil ( can we use semi-synthetic?)
im still running in the seals....
im sure it wont disappoint.
btw, i hv a hydrogen generator running in my E39 but when my seals were changed yesterday....
its was running without the hydrogen and response was short of astounding!
cant wait to get my baby down to Malacca this weekend.
cheers....

p/s for all the beemer owners out there still keeping the seals in their glove compartment,
like NIKE would say....Just Do It!
ur only regret is not changing the seals as quick.
thanx Herbert for letting us into this product.

hai,where did u change yr v/seals

 

[IanDaddy]

Hehe, me too , still have the seals in the glove compartment. Kayzhen, what is the mileage of your M54 ?

 

[kayzhen911]

ian....
my M54 old liao
97000 miles.
i got them changed in ipoh.
new age auto.
honest joe...
hehehe
do it there if u guys happen to cross the border.