M10 making weird noises, burning oil, and not idling properly

[Dawskip]

I’ll attach a video of it.

the car runs fine, other than why was mentioned in the title.

if moving, the rattling goes away but as soon as I come to idle, it gets rough and I hear the rattle.

any ideas??
I’ll attach a video of it.

the car runs fine, other than why was mentioned in the title.

if moving, the rattling goes away but as soon as I come to idle, it gets rough and I hear the rattle.

any ideas??

[Sunnyledge]

A vacuum leak will cause a very erratic and rough idle that disappears at higher rpms. But this wouldn’t explain the oil consumption.

[Dawskip]

A vacuum leak will cause a very erratic and rough idle that disappears at higher rpms. But this wouldn’t explain the oil consumption.

Also doesn’t explain the rattling which is my main concern

[Dawskip]

Bump pls halp

[TobyB]

Measure your oil pressure with a gauge.

Check your timing with a light.

Bypass your idle valve with a manual one and see if it will then idle in a stable manner- the 318 idle system is known to be poo.
A small ball valve from the pluming store can work for troubleshooting.

See if your exhaust is loose/ hitting anything.

See if you have a lot of blowby from the crankcase.

Try a compression test.

Unhook one plug wire at a time to see if the rattle goes away

for starters...

t
other that that, Mrs. Lincoln...

[EbzyyE30]

not sure if its the same system as m20's with the Motronic system. but I can say that these motors do not like vacuum leaks at all. just pull the dipstick while idling and you will understand very quickly, I would check every vacuum line for leaks, and for that rattling just sounds like the exhaust is bouncing around because of the bad idle just a lot of vibration. could be the shield that is loose as well. Good luck and check all the stuff the guy above has referred to.