Author Topic: Sad Take off (Read 5536 times)

Genjinn · « **on:** February 04, 2010, 05:57:39 PM »

OoOoO...k so we all know i have a bad rep at explaining things so ill try to explain this the best way i can....ok... my take off suxs, i don't think that when i take off from clutch to gas the engine will bog down as if its ready to stall out then the rpm will raise up according to pedal pressure so...picture it like this give gas to to full throttle while releasing clutch in a some what of the line motion, from idle (at 900 rpms..well mine) gas,off clutch, engine bog! then the engine will rev normally to were ever so why....and why cant i dump the damn clutch either? is it the tranny? the clutch? what?....i hope i explained that in a way you can understand cause quite frankly i suck at it....

Chalino · « **Reply #1 on:** February 04, 2010, 07:23:04 PM »

Quote from: Genjinn;86670

OoOoO...k so we all know i have a bad rep at explaining things so ill try to explain this the best way i can....ok... my take off suxs, i don't think that when i take off from clutch to gas the engine will bog down as if its ready to stall out then the rpm will raise up according to pedal pressure so...picture it like this give gas to to full throttle while releasing clutch in a some what of the line motion, from idle (at 900 rpms..well mine) gas,off clutch, engine bog! then the engine will rev normally to were ever so why....and why cant i dump the damn clutch either? is it the tranny? the clutch? what?....i hope i explained that in a way you can understand cause quite frankly i suck at it....

I have this exact same issue! I though that was just how this car was. If I rev it before I release the clutch, I get this insanely loud screech/grind. If I release the clutch first and then give it gas, it bogs down like hell and almost stalls. Makes for very embarassing situations.

DesktopDave · « **Reply #2 on:** February 04, 2010, 07:39:05 PM »

Did you bleed your clutch slave? Or as it replaced recently?

I had trouble with my old Nissan 200sx like that and it ended up being the slave was worn & letting the clutch bounce a little. Bleeding helped but replacing fixed it for me. I had a chirping/squealing too, it was the clutch slipping.

Chalino · « **Reply #3 on:** February 04, 2010, 07:53:28 PM »

Quote from: DesktopDave;86679

Did you bleed your clutch slave? Or as it replaced recently?

I had trouble with my old Nissan 200sx like that and it ended up being the slave was worn & letting the clutch bounce a little. Bleeding helped but replacing fixed it for me. I had a chirping/squealing too, it was the clutch slipping.

I have not done that yet. I'll try that today and advise.

Genjinn · « **Reply #4 on:** February 04, 2010, 08:56:17 PM »

see thats funny you said that i just got my clutch replaced by some "professionals" and i guess that they bleed it but i have the original flywheel that has like over 200k miles on it i don't know how much that would matter but the flywheel is getting replaced very soon for on of them there light ones for optima speed

DesktopDave · « **Reply #5 on:** February 04, 2010, 09:49:08 PM »

The flywheel's age doesn't matter, but the surface must be clean & true for smooth clutching. The standard dual-mass flywheel shouldn't be resurfaced. Might be that your flywheel isn't 100% trued or the clutch is glazed. I'll hope that your clutch slave has a bubble since that's the easiest & cheapest one to fix.

dvmotorsports · « **Reply #6 on:** February 04, 2010, 10:57:10 PM »

It's called Dual Mass Flywheel-itis. All US M42's have this disease from the factory.

4banger · « **Reply #7 on:** February 04, 2010, 11:43:07 PM »

i hear about all these problmes people have but none of mine have these issues. i can slip the clutch in my 4door and take off from idle.

Genjinn · « **Reply #8 on:** February 05, 2010, 01:49:59 AM »

So the removal of the disease know as THE DUAL MASS FLYWHEEL OF RESTRICTION! ill have a normal 5 speed capable of being dump out of first gear and have a off the line rubber burning take off that is nothing short of GREATNESS!

4banger · « **Reply #9 on:** February 05, 2010, 01:57:15 AM »

mine can do that with the dual mass. maybe i just have a healthier than usual 270k+ mile 318

Chalino · « **Reply #10 on:** February 05, 2010, 11:20:56 AM »

So the dual-mass flywheel causes the engine to bog and the clutch to screech and grind??

dvmotorsports · « **Reply #11 on:** February 05, 2010, 11:37:41 AM »

Torque on the vehicle is fair for the time of production and weight of the vehicle. However, you can throw on a 12lb FW and effective eliminate 13lbs of unnecessary rotational mass.

"Unnecessary" is a matter of opinion though. BMW equipped the dual mass to the 318 because of the harsh engagement and idle chatter that occurs as the result of a single mass.

You should be able to spin tires on the DMFW. You may have some sort of intake restriction or throttle cable that is out of adjustment. Even fouled plugs or cam timing might be off. There are a number of variable here.

Genjinn · « **Reply #12 on:** February 06, 2010, 08:25:46 AM »

Oh...well am getting the 12lb flywheel anyway just cause what it does but i will look at all the other matters that may lead to my normal issue. hmm maybe its the spark plugs cause i haven't changed them sense i got the car but it is my next change up too but how can i find out about the throttle cable or seeing if the cam timing is off o wise dvmotor.

4banger · « **Reply #13 on:** February 06, 2010, 09:10:45 AM »

gotta be quick with the shifts when you got a ltw fly installed. revs drop fast.

Genjinn · « **Reply #14 on:** February 06, 2010, 10:04:17 AM »

well i have a b&m short shifter so i can shift pretty quick so any ideal on which ltw fly i should get?