G'day Folks,

Has anyone with experience of the M102 got an idea what this whining sound might be?

I have the feeling it is the timing chain but I'd like confirmation.

It kind of sounds worse on this video than it is in real life but none the less it sounds a bit like a straight cut gearbox on an earth moving machine!

M102.910 whining sound - YouTube

The popping sound is due to me fiddling for the throttle linkage - not the car.

More information given in this post =>

Achtung - Das schweinhund baby benz thread

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Sounds like alternator to me.

I thought so too - but I'm not so sure now...

I think I'm going to have to do some tests with different belt configurations leaving out each bit in turn.

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Translation for us Yankees:
Whinger = Whiner

Sorry I cannot provide any actual useful assistance, Stretch. Good luck.

__________________
1968 220D, w115, /8, OM615, Automatic transmission.
My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).

Stretch,

That car need some stretch'n from our 43c weather here.

Possibilities:

* New muffler bearings

* Orrr American Catastrophic Converter...

But....

The possibility of an accessory looms.... Take the accessory belt off see if the whine disappears? Turn on lights, AC & turn the wheels for change in tone...-with the belt on...

Martin

Thanks Martin I'll mess about with belts tomorrow

And shortsguy1 just consider me to be a bad speller and 9 times out of 10 it'll be good enough!

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

time to break out the stethescope.

__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

I've done that - it wasn't conclusive which is why I started the thread hoping someone would say "oh it is always XXXXX on a M102"...

...I'll play about with the belts tomorrow

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

...I've just killed the engine.

I was checking the power steering pump - just replaced the fluid and filter - re-tightened the utility belt - started the engine and the noise was still there.

Walked back to the key to turn it off and the engine stalled after a loud click.

I knew exactly what it was => Broken camshaft


I've now worked out what I did wrong - I didn't re-set the chain tensioner correctly when I refitted it. I didn't RTFM properly.


Needless to say I'm pretty embarrassed about this.

More information about the tensioner is here =>

190 2.3 CAM broke after head gasket repaired!

As well as in the FSM


I'm a total plonker

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!