Ignition Timnings

[steeN]

I need the ignition timings for l-jetronic m10b18.
And some explanation how can I adjust the ignition timing of my car. I have a timing light, I know how it is connected to the engine electrics, I know where I must aim it... But what I should see when I rotate the distributor. Do I have to disconnect the vacuum hose and plug it? used
I hate my car

Any help will be greatly appreciated

[idanity]

what year is your car.

how many cyclnders

ive got a manual but nefver did that procedure.
i understood you can do it by sound , or at least the pro's can...
i did it once with my datsun ( by sound) and it worked (still works)0 greatr.
still gets 35mpg.

[idanity]

Originally posted by steeN@Dec 5 2004, 06:19 PM
I need the ignition timings for l-jetronic m10b18.
And some explanation how can I adjust the ignition timing of my car. I have a timing light, I know how it is connected to the engine electrics, I know where I must aim it... But what I should see when I rotate the distributor. Do I have to disconnect the vacuum hose and plug it? used
I hate my car

Any help will be greatly appreciated

[snapback]244113[/snapback]

also i found this in this forum

below is copu-pasted
AJ's320i
Oct 14 2004, 09:22 PM
Post #2



If you advance the timing your car will probalby not want to start, and if it does it will not run well. The timing is set with the car at 2400 rpm, vaccum advance unpluged and looking through the timing hole at the back of the block. If you want to change your cam timing that is different, you will need to buy an aftermarket cam gear that allows you to advance it.

hope it helps

[steeN]

Sure it helps. When I bought the car there was something wrong... my mechanic messed everything up. He adjusted my air flow meter, but the car was runnig like crap... ghead(in the city 14l/100km = 16.8 mpg am I driving a truck of what?) From then I decided to do the repairs by myself. Later I found the problem failed idle control valve and lambda sond... I fixed the AFM with gas analyzer B) Now I think the timing needs little tweaking, I did it by sound but I want to check what I've done. I 've bought Haynes manual, there is some info but what are these marks on the flywheel ('Oz' 'Ot') or something. I don't remember exactly.

My car is

1987 318i
4 cylinder
engine M10B18
L-Jetronic with lambda control

[idanity]

okay,
ive been ing and all and this does pertain to my 325i 6cylinger..

but during timing operations there is a
TDC(*top-dead-center)
and a
notch.

the notch is on the pulley next to the teeth so next to the belts inner teeth too.
its just a -
just a dash and when the rotor is pointing to the #1 cylender it s okay, if not;

whel wpoops. it may be all the way to 180 degrees out of synche.

really all you need to do is go to a "BMW-ONLY" mechanic and have him check.
it wont be more than 8 dollars or ask if you could buy him a dozen donuts or a case of beer for it?
youd be surprised on how well that works.

btw i get over 30 mpg sometimes and sometime 18 mpg. city...but when im doing the speed limit its 28mpg...

lemme know what else is up..