Z3M S50 two questions

[Z3Mroadster]

Hello everyone !


1.When I switch-off (ONLY WARMED)engine,and turn on for a few seconds-minutes and hold gas pedal between 2000-3000 rpm(IN STAND) ,then rpm fluctuating-oscillates 2000-2500 rpm...And jerks in ride(2000-3000rpm)...After 5-10 min. everything is okay...
Rpm in idle is ALWAYS okay(newer oscillates)...
I have a video...

2.how pre-load center support bearing on car(I don't marked the position when I took off the driveshaft(I have vibration in the 1st and 2nd gear in back under acceleration)...


Thanks in advance!

 

[GazHyde]

Have you got a code reader to see if there are any relevant fault codes?

@Lee may be able to help with the pre-load question.

 

[Lee]

It's simple, Pull the pre load to it's max, it only has a few millimetres in movement. Long as a load is applied on the housing.

 

[Lee]

Hello everyone !


1.When I switch-off (ONLY WARMED)engine,and turn on for a few seconds-minutes and hold gas pedal between 2000-3000 rpm(IN STAND) ,then rpm fluctuating-oscillates 2000-2500 rpm...And jerks in ride(2000-3000rpm)...After 5-10 min. everything is okay...
Rpm in idle is ALWAYS okay(newer oscillates)...


2.how pre-load center support bearing on car(I don't marked the position when I took off the driveshaft(I have vibration in the 1st and 2nd gear in back under acceleration)...


Thanks in advance!

P.S check your vacuum hoses under the air box and make sure there's no open ends up to the manifold.

 

[Z3Mroadster]

Have you got a code reader to see if there are any relevant fault codes?

@Lee may be able to help with the pre-load question.

155 memory master(but this error is still present long before)...

 

[Z3Mroadster]

It's simple, Pull the pre load to it's max, it only has a few millimetres in movement. Long as a load is applied on the housing.

Preload CBS ears about 4 mm forward(from the center of the screws in direction of transmission)?
CSB must be tense?
How important is alignment?

 

[Z3Mroadster]

P.S check your vacuum hoses under the air box and make sure there's no open ends up to the manifold.

Vaccum hooses all ok(I checked)...

11 72 1 402 464-air pump control valve(I removed the vacuum hose from this valve and put the pressure gauge(on vaccum hose) with pressure and pressure is falling)..I don't know is ok or no?Valve working(open-close)...
Non-return valve is brand new...

Maybe is problem elsewhere...

 

[BMBabe]

Where are you based maybe some of tech Zedders are local to come help?
There must be someone on here check members map

 

[BMBabe]

Iv just checked the map for you no one on the map in Croatia

 

[Z3Mroadster]

Where are you based maybe some of tech Zedders are local to come help?

I am in the THIRD WORLD-Croatia

 

[BMBabe]

I am in the THIRD WORLD-Croatia

I just checked the map looks like no one is near you

 

[Z3Mroadster]

I just checked the map looks like no one is near you

I know...

 

[Lee]

Preload CBS ears about 4 mm forward(from the center of the screws in direction of transmission)?
CSB must be tense?
How important is alignment?

Alignment is not crucial, by eye is good enough. The centrifugal force in the shaft will take up the slack in the rubber joint/bearing.

The rough running I'm not sure mate. what are the symptoms exactly?

The only things I can think of is the cam shaft sensor and the small 5mm vacuum pipes under the manifold.

 

[Z3Mroadster]

Alignment is not crucial, by eye is good enough. The centrifugal force in the shaft will take up the slack in the rubber joint/bearing.

The rough running I'm not sure mate. what are the symptoms exactly?

The only things I can think of is the cam shaft sensor and the small 5mm vacuum pipes under the manifold.

Do you have whatts app,or viber?I have a video?

 

[Lee]

Pm'd