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1979 528i. the front power windows both work but the rears do not work from the front switches or the rear. I'm not getting power or ground to the motors with a test light when the switch is activated. next I took down the knee panel on driver side where the automatic cut off switch. I moved the ...

1979 528i. the front power windows both work but the rears do not work from the front switches or the rear. I'm not getting power or ground to the motors with a test light when the switch is activated. next I took down the knee panel on driver side where the automatic cut off switch. I moved the ...

the car stalls, wont hold an idle, plus I messed with all the adjusting screws on it. a mechanic told me it needs to be replaced. I found one in ohio and ordered it. 120 bucks.

anybody have or know where I can get a complete throttle body for my 1979 528i automatic. Cant find anywhere. thank you

Does it matter where all the vacuum hoses go? They are all connected and new but my question is do the two that come off the distributor have to go to a specifc spot? I cant find decent pics of the top of the engine or vacuum hose routing... thanks

I installed a used m30 head on my 1979 528i. I had a shop adjust the valves and I cant get the thing to idle right. Its popping in the intake manifold and I have to keep my foot on the gas to start it and keep it running. Since im putting a different head than is suppose to go on the car is there ...

I haven't checked it with a timing light but with the valve cover off and the valves for #1 cylinder pointing down and the crank lined up I don't think its timing. I loosened the 10mm nut for the distributor, had a an assistant in the car and had them shut it off as a slowly rotated it to where it ...

Yes, the idle valve on early e12's are not electronic. Hot coolant flows through the valve and opens the spring when the car warms up. It is tested my putting in hot water then the freezer.

I recently put a cylinder head on my 1979 528i. after starting it it runs rough and then dies. No vacumm leaks, new plugs, wires cap and rotor. The idle air valve is working because the spring moved when I put it in boiling water. Next to the idle valve and the thermo time switch is the coolant temp ...

what is the f.i box? it runs very rough for 30 seconds than dies. I messed with the flat head screw on the side of the throttle body ( a big no no I know) but im out of options....

the valves are prob out of adjustment your right... there not clacking away(there actually very quite) but I know if there too tight they can cause a rough running engine as well. ill adjust the valves and go from there. thanks

I got it started. took valve cover off, set crank at tdc(compression stroke, number one vales pointing down, but it runs realll rough... I know it could be tons of things causing this but when I have an assistant crank the engine as I move the loose distributor slowly it runs better when I get to a ...

thank you mike. I always set the crank pully on the o l t mark with the mark on the front cover. still no start. maybe im on the wrong stroke.... do u have a pic of where or how the distributor should go? thank you

replaced the cylinder head with another style m30 head and got the conversion nut for the distributor at the dealer. The coil wire is sending spark to the plugs, I pulled all 6 plugs off, one at a time, held to the block, they all are getting spark to the spark plugs, I lined up the timing marks on ...

mike.... when the head was on the bench I made sure the valves for the number one cylinder had just closed as I spun the cam nut.. thought that was right....