Abish
New member
Dear BMW familia,
I've recently had the vanos unit replaced. However, I'm doubting whether the timing is correct.
Preinstall symtomps:
* Low mid range torque.
* Very high fuel consumption (15 L/100 highway).
* Rough idle.
Upon seeing the old unit I saw the plausible cause of these symtomps. The vanos piston that the solenoid engages was jammed in a certain position.
I purchased a good second hand vanos, replaced the seals (beisan auto seal kit) and since my car is pre-1995 model I've added the leaf spring and additional thrust washer with extended studs to the intake cam. These are the results thereof:
* Slight to not noticeable power increase.
* consumption dropped to 13L/100. Which is still high.
* Idle has changed completely. Much smoother and silent. Revs up smoothly. Can hardly hear the engine anymore.
* The rev limiter now sounds like a high frequency machine gun
with no breaks in between.
My concerns are whether the vanos was correctly installed. ''Turn both sprockets far right and the instant you turn left (counter clockwise) whilst holding the vanos in place, the vanos sucks in''. What if the vanos was pushed in after that instant the sprockets begun turning left.
Is my timing correct or am I worrying unessesarily??
Regarding the consumption is the consumption correct with the 3.73 diff ?? Keep in mind that the urban consumption reaches a scary 28L/100.
Forgive me for the long post. Thank you for your assistance in advance.
Sent from my SM-G900H using Tapatalk
I've recently had the vanos unit replaced. However, I'm doubting whether the timing is correct.
Preinstall symtomps:
* Low mid range torque.
* Very high fuel consumption (15 L/100 highway).
* Rough idle.
Upon seeing the old unit I saw the plausible cause of these symtomps. The vanos piston that the solenoid engages was jammed in a certain position.
I purchased a good second hand vanos, replaced the seals (beisan auto seal kit) and since my car is pre-1995 model I've added the leaf spring and additional thrust washer with extended studs to the intake cam. These are the results thereof:
* Slight to not noticeable power increase.
* consumption dropped to 13L/100. Which is still high.
* Idle has changed completely. Much smoother and silent. Revs up smoothly. Can hardly hear the engine anymore.
* The rev limiter now sounds like a high frequency machine gun
with no breaks in between.My concerns are whether the vanos was correctly installed. ''Turn both sprockets far right and the instant you turn left (counter clockwise) whilst holding the vanos in place, the vanos sucks in''. What if the vanos was pushed in after that instant the sprockets begun turning left.
Is my timing correct or am I worrying unessesarily??
Regarding the consumption is the consumption correct with the 3.73 diff ?? Keep in mind that the urban consumption reaches a scary 28L/100.
Forgive me for the long post. Thank you for your assistance in advance.
Sent from my SM-G900H using Tapatalk
