clutch or fuel ... that is the question ...

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ole Hank
Posts: 57
Joined: Tue Jan 06, 2009 1:45 pm

clutch or fuel ... that is the question ...

Post by ole Hank »

OK .... various symptoms/ one cause ? multiple causes ?
* shake / vibration in 1st and 2nd. Sometimes it takes a few attempts to
get a smooth start
* clutch replaced about a year ago / flywheel resurfaced too
* slight fuel smell ( all fuel lines replaced - front and rear )
* bad gas mileage ... 12-15 mpg
* idles smooth ( throttle body cleaned and adjusted as per FAQ article )

Ideas ? Theories ? More clutch pressure ? Bad fuel pressure ( new stock
pressure guage 2 yrs old )

As always ... all comments welcome.

Hank
1980 528i / white-red / staggered Alpinas / lowered / 5 spd / euro bumpers
1980 528i / Alpine white ( red leather ) 5 spd /SOLD !!!
1973 2002 Inka orange ( frame off in progress )
1971 2002 Inka orange / 14" steelies ( winter )Ronals ( summer ),5 spd
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JoshInAtlanta
Posts: 218
Joined: Sat May 17, 2008 4:45 pm
Location: Atlanta, GA

Post by JoshInAtlanta »

Sorry I can't help (though it sounds like a fuel issue to me), but I would love to see a pic of your car with the Alpina wheels, since we have otherwise similar vehicles. I have been considering going this route but haven't been able to make up my mind yet.

Josh
1981 528i
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DEMIURGE
Posts: 132
Joined: Mon Jul 05, 2010 4:34 am
Location: Sofia, Bulgaria

Post by DEMIURGE »

Potential causes:
Clutch causes with presumption that the clutch and plates are OK:
1. Check the slave clutch pump, then the master.
2. Check the fluid level and check for air in the system - I believe - this isn't the reason
3. Check the clutch and the plates for oil or dirt. I believe, there aren't some bent parts after an overheating.
Fuel causes:
1. Check the fuel pump - pressure - the best place is the fuel injectors rail. In that way you will check the fuel pressure regulator also.
2. Check for blocked fuel filters - beside the external, the intank also.

There could be some other causes of course. After you start, smooth or not, how you feel it - is there enough power? What happens if you depress the gas pedal to the "max", after you are already moving?

And some offtopic - to Josh in Atlanta
It depends - 16 or 17 inch Alpina wheels, if you are looking for 17" - you can see the pictures in my signature.
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