DIFF & IDLE VALVE

[Ravi]

Can any 1 help? my e30 sport seeems to be making a few funny noises from the rear end, not sure what it is but am worried that the diff may be fucked, the car is an 87 model with 150 miles on the clock. is there any way to service a diff? also my idle speed valve is goosed, i was wondering if there is a diy way to fix one? the car idles fine when cold but once warm the revs are all over the place. hope sone1 can help

cheers people
rav

[Davenotouring]

You could start by checking the oil in the diff.

Depending on what sort of noises they are, it may not be too serious, and if the oil is low, and you change it for new (correct) stuff and fill it to the correct level, it may be fine.

The idle problem could be a few things.

Idle Control valve could be at fault, it's worth taking it out and cleaning to see if that makes a difference.

Also the ECU Temperature sensor on the thermstat housing could be faulty, making the engine think it's cold or something similar.

Also check the wiring underneath the inlet manifold....something where the plug is, it gets mouldy and corroded.

Try those, come back with more details if possible and we'll try to help I'm sure.

[Ravi]

WHAT SORT OF OIL SHOULD I USE? IS IT HARD TO DO? IM NOT THE BEST AT MECHANICAL STUFF BUT IM TOO MUCH OF A TIGHT GET TO PAY A MECHANIC FOR SOMETHING AI MAY BE ABLE TO DO MYSELF.

CHEERS

[SwirlyE30]

My idle is f**ked at the moment.Somtimes its fine, then somtimes for the first 10 minutes , literally it stalls at every junctions, almost dangerous at some points.

My dad had a quick go at spraying carb cleaner on the intake but i only made a bit of differnce for about 10 minutes.I would get to him look into it more,but hes got Neumonia (sp?)

[Davenotouring]

Ravi......

The oil you need is specific LSD oil....it costs quite a bit from BMW...

Like almost 50 quid for 2 litres

But you could do it yourself providing you have the tools.

You need a decent set of allen keys...quite big....that's it. And a container which you can use to pour into the diff from below.

Sam...did you take of the ICV? Try cleaning all the breather pipes as well. Could help a bit?

[SwirlyE30]

My dad had a quick go Dave, but he just sprayed some shit there.I dunno where abouts the IDV is, so i dunno what to take off and how to clean it (newb lol) i would have a go though if i knew etc.

Maybe if were still up for poping over to Brighton monday (me and josh) you could gimmie some tips mate

[Davenotouring]

I'm picking up the kit tomorrow mate, so by all means come and pick it up monday, I'll have a look at your motor too, and the idle problem if there's anything I can do!

[SwirlyE30]

Oh right nice one.Well ill bring some carb cleaner (got some screwdrivers ,dildos etc in the boot) and maybe you can show me how to tweak it. Ill speak to you tommorow about it mate (off out for the night), thats if i can get there without my car dieing lol.

[Moofles]

the car is an 87 model with 150 miles on the clock

[spam]
i love a low mileage e30!
[/spam]