Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

Reply
 
Thread Tools Display Modes
  #1  
Old 04-22-2011, 07:09 PM
Daveos Daveos is offline
Registered User
Location: Australia
 
Join Date: Apr 2011
Posts: 5
Mein Auto: Your Mum :)
e30 wont acceletate over 60kph HELP!!!!

I'm working on a friends E30 318i and it gets to 57kph (LETS CALL IT 60) and will not accelerate any further, once the speed drops below 60 it will then be able to accelerate again. Car freely revs in Netural and has no hesitation getting to 60 but once it reaches that speed it feels as if there is a fuel cut.

We have replaced Spark Plugs, Fuel Filter, Leads are new. The only thing we have left is the Dizzy cap and I will give that a shot next chance I get to look at the car. Is there anything that I have over looked?

Any advice will be very much appreciated.

Thanks Dave.
Reply With Quote
Advertisement
  #2  
Old 04-23-2011, 01:44 AM
Daveos Daveos is offline
Registered User
Location: Australia
 
Join Date: Apr 2011
Posts: 5
Mein Auto: Your Mum :)
Checked the Dizzy cap it had a small amount of black build up. Removed that, still no better... Time to replace the Dizzy cap and rotor?
Reply With Quote
  #3  
Old 04-23-2011, 01:55 AM
Billwill Billwill is offline
Officially Welcomed to the 'Fest
Location: South Africa
 
Join Date: Oct 2009
Posts: 529
Mein Auto: BMW E30 318i 1991
I presume this is the M40 motor? If you drive it in second or third gear (assuming it is a manual) does it rev up to about 5,500 RPM without a problem? What RPM does it achieve before baulking at 60Km/h in top gear?
Check that the camshaft timing is 100% correct..use a Haynes or Bentley manual to see how this is done...if it is indeed a M40 I can give you step by step advice on this.
A badly worn camshaft can also cause this.
The Air Flow Meter could be bad....try and swap it out with some other 318i owner.
Fuel pump or fuel regulator could be bad...Haynes tells you how to check these items.
Reply With Quote
  #4  
Old 04-23-2011, 03:20 AM
Daveos Daveos is offline
Registered User
Location: Australia
 
Join Date: Apr 2011
Posts: 5
Mein Auto: Your Mum :)
Quote:
Originally Posted by Billwill View Post
I presume this is the M40 motor? If you drive it in second or third gear (assuming it is a manual) does it rev up to about 5,500 RPM without a problem? What RPM does it achieve before baulking at 60Km/h in top gear?
Check that the camshaft timing is 100% correct..use a Haynes or Bentley manual to see how this is done...if it is indeed a M40 I can give you step by step advice on this.
A badly worn camshaft can also cause this.
The Air Flow Meter could be bad....try and swap it out with some other 318i owner.
Fuel pump or fuel regulator could be bad...Haynes tells you how to check these items.
Umm I'm unsure on the engine code but its an 1985 E30 BMW 1.8L 4cyl.

And its an Auto. Changes through all gears nicely.

Last edited by Daveos; 04-23-2011 at 07:16 AM. Reason: Missed it again
Reply With Quote
  #5  
Old 04-24-2011, 02:26 AM
Billwill Billwill is offline
Officially Welcomed to the 'Fest
Location: South Africa
 
Join Date: Oct 2009
Posts: 529
Mein Auto: BMW E30 318i 1991
Quote:
Originally Posted by Daveos View Post
Umm I'm unsure on the engine code but its an 1985 E30 BMW 1.8L 4cyl.

And its an Auto. Changes through all gears nicely.
Nope...it probably is the M10 motor if it is the 1985 model.....Sorry, cant help you with an M10 Sure your Torque Convertor is not slipping once you get to a certain speed?
Reply With Quote
  #6  
Old 04-24-2011, 05:17 PM
old carnut old carnut is offline
old car nut
Location: Stockton Ca
 
Join Date: Feb 2011
Posts: 49
Mein Auto: 1986 325ES STICK
60 kph is approx 35 MPH? have you verified fuel pressure with a gauge at that speed?
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 06:04 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms