BMW ICOM NEXT | BMW NBT EVO FSC Codes | BMW NBT & CIC FSC Codes | BMW Rheingold , ISTA/P, KSD, ETK remote installation | BMW STANDARD TOOLS remote installation | BMW ESYS remote installation
Go Back   BMW forum. Diagnostics, coding, programming, repair BMW vehicles. > BMWelcome > BMW diagnostics and repair

LinkBack Thread Tools Display Modes
Old 05-02-2013, 08:29 AM
Junior Member
Join Date: May 2013
Location: hereford uk
Car: '99 E36 318 tourer 8valve
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Default no start after top end rebuild

I have a no start, after rebuilding the top end of my '99 318i e36 tourer, and would welcome any advice please! this is the m43 b18 4cy sohc 8 valve eng. The engine runs for a couple of seconds then dies. I'm getting fuel to the valve, and have bled' by switching the ignition on and off three times then pressing the valve. The plugs are wet so I assume I'm getting fuel to the chambers. The connectors in the harness under the manifold all went to the correct place! so I am at a loss to know why it will not run. Nothing else was changed apart from the starter motor. I'm okay on mechanics but my knowledge is limited on diagnostics
Thanks mart37

Reply With Quote
Old 05-31-2013, 09:26 AM
Junior Member
Join Date: Dec 2012
Location: United States
Car: BMW
Posts: 25
Thanks: 0
Thanked 1 Time in 1 Post

First double check you connected back all the sensors, check all the leads under the inlet manifold so they are all correctly fitted. If you have extra motor then replaced the starter motor. If still your problem will not resolve then take your car to certified BMW Service & Repair center. With auto diagnosis they will tell you the problem or visit [Only for registered users... ]
Reply With Quote
Old 06-29-2013, 05:49 PM
Junior Member
Join Date: Jun 2013
Location: Zimbabwe
Car: BMW
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts

You must check your valve timing. Pin in flywheel
Make sure marks line up on cam. Make sure u put
Cam sensor plate back correct. Check fuel pressure
With pressure gauge, make sure no air leaks on
Manifold, also could be flooding. Can take plugs out
Blow em dry if wet. And blow compressed air into
Cylinders to dry em out.
Reply With Quote
Old 07-23-2013, 12:29 AM
Junior Member
Join Date: Jul 2013
Location: Ontario, Canada
Car: E46 325i
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts

I'm not familiar with the M43. But I have rebuilt a few M42's and I know that it is possible to mix up the Cam sensor and Crank sensor. That would cause the symptom you're having. They are 3 pin bosch style connectors, follow them back from the head and block, switch them and see what happens.

If you were out of timing by a large amount, it would either cause piston to valve contact or damage to the engine. But if what I mentioned before doesn't work, check timing.

Reply With Quote

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
E90 won't start anymore. Problem EWS / DME / CAS ? sepyonline BMW diagnostics and repair 12 10-14-2017 08:28 AM
e92 M3 - Interminttent start staloy BMW diagnostics and repair 3 05-18-2012 11:16 PM
Z3 no start ok2003us BMW diagnostics and repair 1 04-24-2012 07:27 PM
Where does one start? RoyE New Members Area 0 08-20-2011 10:00 PM
Hi new E46 driver start coding cipweb New Members Area 0 05-06-2011 03:23 PM

All times are GMT. The time now is 11:19 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
BMW forum: diagnostics, coding, programming.