1
Member Profiles / Re: Asterian
« on: June 24, 2013, 01:54:11 PM »
After final paint job:
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2
Engine + Driveline / Engine start after stand-by period
« on: April 26, 2013, 03:19:06 AM »
E30 M42B18 1989:
Car downtime <= 1 day:
At any season engine starts immediately. Run smooth after start.
Car downtime > 1 day, but < 3 days:
Engine starts not perfectly, for first 10 seconds idle jumping 600-1100.
Car downtime 4-7 days:
Few times was necessary to crank for very long time.
________________________
What could be a reason?
Car downtime <= 1 day:
At any season engine starts immediately. Run smooth after start.
Car downtime > 1 day, but < 3 days:
Engine starts not perfectly, for first 10 seconds idle jumping 600-1100.
Car downtime 4-7 days:
Few times was necessary to crank for very long time.
________________________
What could be a reason?
3
Engine + Driveline / Re: Spark Plug Condition
« on: April 23, 2013, 03:06:54 AM »
After 200 km highway trip:
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Engine + Driveline / Spark Plug Condition
« on: April 16, 2013, 06:58:09 AM »
Hi! Here is a photo that I took this morning when checking my spark plugs.
Cylinder 2 plug is really different from others:
3 month ago when I first time noticed this - cyl 2 spark plug was changed to new one.
Then I swapped cyl 1 & 2 coils to see if its a cause. As we can see - no difference.
Plug wires are fresh - was installed 10 000 km ago.
Compression - 14 approx.
When testing for spark - when plug is outside of engine - its present.
When disconnecting plug wires - engine is responding on every cylinder same way.
No fault codes.
So, why plug N2 is not looking normal?
Cylinder 2 plug is really different from others:
3 month ago when I first time noticed this - cyl 2 spark plug was changed to new one.
Then I swapped cyl 1 & 2 coils to see if its a cause. As we can see - no difference.
Plug wires are fresh - was installed 10 000 km ago.
Compression - 14 approx.
When testing for spark - when plug is outside of engine - its present.
When disconnecting plug wires - engine is responding on every cylinder same way.
No fault codes.
So, why plug N2 is not looking normal?
5
Engine management / Re: "No-lambda" - downgrade
« on: April 10, 2013, 08:12:58 AM »Could be that fuel mixture is more rich. ..Thanks for participation! However more answers causing more quetions..
- more rich without Lambda?
- more rich=>idle more smooth?
- rough idle with Lambda<=air leaks in intake?
6
Member Profiles / Re: Asterian
« on: April 08, 2013, 07:24:06 AM »
So finally vibration issue solved by removing non-stock exhaust bracket.
Now I'm really enjoying driving with this engine.
Ater this most interesting question for me its fuel consumption:
Highway - 7 ltr / 100 Km
City (high traffic) - 14 ltr / 100 Km
For comparison my past carburetor M10:
Highway - 8 ltr / 100 Km
City (high traffic) - 14 ltr / 100 Km (same figure)
Diff is 3.91
Now I'm really enjoying driving with this engine.
Ater this most interesting question for me its fuel consumption:
Highway - 7 ltr / 100 Km
City (high traffic) - 14 ltr / 100 Km
For comparison my past carburetor M10:
Highway - 8 ltr / 100 Km
City (high traffic) - 14 ltr / 100 Km (same figure)
Diff is 3.91
7
Engine management / Re: "No-lambda" - downgrade
« on: April 08, 2013, 07:18:11 AM »
Ok, closing issue.. running without lambda for 3-rd month already. Driveability still same like before and with sensor.
Question - what can be cause of that fact that without Lambda idle is more smooth that with?
Question - what can be cause of that fact that without Lambda idle is more smooth that with?
8
Engine management / Re: M42 sputters
« on: April 04, 2013, 02:55:22 PM »
Hi. Maybe this thread will helphttp://www.m42club.com/forum/index.php?topic=7757.0
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Engine + Driveline / Re: 2-3K rpm Vibration
« on: March 30, 2013, 01:57:01 PM »
Halleluiah! Its solved just now. I just removed one exhaust mount made by welder which was almost directly transferring exhaust vibration to car frame. Conclusion - all suppose to be so close to OEM as possible.
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Member Profiles / Re: Asterian
« on: March 28, 2013, 03:43:57 AM »
To release my crazy design ideas 2 years ago I have tried to make my car looks like "Black&White Umbrella Corp Car". Maybe OEM Alpinweiss color was better, but that period I was happy to create something new for me.
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Engine management / Re: "Rough Idle Fix Via AFM"
« on: March 26, 2013, 03:22:10 AM »
... Maybe its more correct for same reason to use Idle CO adjustment screw on AFM?
13
Member Profiles / Re: Asterian
« on: March 25, 2013, 02:48:26 AM »
For a current moment I will hope that its not chain.
First would like to try/check following:
1) In a week time I will get camshaft alignment tool to put correct camshafts position. (Now its aligned with 1-2 degree tolerance (already got engine like this));
2) Would like to install OEM type exhaust/currently I use m20 twinpipe.
P.S. More exactly - vibration/drone happening at 2500 rpm.
First would like to try/check following:
1) In a week time I will get camshaft alignment tool to put correct camshafts position. (Now its aligned with 1-2 degree tolerance (already got engine like this));
2) Would like to install OEM type exhaust/currently I use m20 twinpipe.
P.S. More exactly - vibration/drone happening at 2500 rpm.
14
Engine management / "Rough Idle Fix Via AFM"
« on: March 25, 2013, 02:43:17 AM »
Hi guys! What do you think about following adjustment:
http://www.youtube.com/watch?v=MTnB5X4lURk
Were somebody tried?
Is it literate?
http://www.youtube.com/watch?v=MTnB5X4lURk
Were somebody tried?
Is it literate?
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Member Profiles / Re: Asterian
« on: March 23, 2013, 10:03:48 AM »
Very sadly if all described above will be real cause, however, my engine dont making excessive noise at this rpm, just vibrating. If chain will need to be replaced, I think that instead of this job I will better buy complete engine again. Set from E36 overhere will cost around 800 Usd.
Feelings with M42 after M10 are not what I was expecting. More HP is great, but my M10 was running more smooth. Plus fuel consumption (within city) are same for both engines. This I cannt understand - how Carburetor engine can take same fuel amount that Motronic setup.
Feelings with M42 after M10 are not what I was expecting. More HP is great, but my M10 was running more smooth. Plus fuel consumption (within city) are same for both engines. This I cannt understand - how Carburetor engine can take same fuel amount that Motronic setup.