help!! Loud engine knocking noise... :(

[Ryan1980]

ok so the chain basically needs to move one tooth to the left (when looking at it from the front of the car) ??
and i need to replace one slider.
or should i replace everything? the chain looks pretty new.
perhaps i should just order the slider and 2 tensioners?
what's people thoughts?

hmm is that the genuine brand of hose clamp? wish i could take credit for that, but the previous owner did all of the work

[TJ 450]

For the chain, one tooth to the left when viewed from the front of the car is correct.

I would replace the chain, tensioner and both sliders plus the lining for the tensioner slider. Everything except the tensioner slider is available on AutohausAZ. I purchased a tensioner slider lining from Westpoint Star for something like $30 when I did my 450.

At a minimum, the tensioner and both sliders could be changed, then a measurement of chain stretch after that will determine whether or not you really need to replace the chain. I wouldn't trust the other slider.

Yes, that is one of the genuine brands of hose clamp. 

Tim

[s class]

Careful!  You need to adjust the engine again until the crank damper shows 0 degrees.  Then you will be able to see better which way each cam sprocket must adjust.  When the crank is at 0 degrees, then adjust the cam sprockets so that they are as close to lining up as possible.  Remmeber, the crank will have to go twice around again. 

[Ryan1980]

hmm whats the website addy for autohausaz ? cant seem to find it.

[Ryan1980]

unless you mean autohausaz.com
they dont have these parts in australia?

[oscar]

That's the site. 

There's any number of places in Oz to get all the parts.  Just do a price and availability check first for lead times and compare.  From Autohaus you're looking at 4-5 business days after paying.

BTW, I'm impressed with what you've done so far.  Keep it up

[TJ 450]

It is usually cheaper from the 'States, even with the current exchange rate. In Perth, the other options are Lintrex (Bentley), Euro Car Parts(Kenwick), M-B Dealers. I would get quotes for the parts there and compare. I doubt anyone will have the parts in stock locally. MB Spares is another option, although I have no experience buying from them.

Tim

[WGB]

I have used M-B Spares in Canberra and the guys are very knowledgeable.

All this collection of parts came from M-B Spares when I did the timing chain on my M117 450.



Notice the two packets of camshaft oiler connections - $14 of very worthwhile insurance.

I would ask them for prices and compare with costs from autohaus.az.

Bill

[koan]

I have used M-B Spares in Canberra and the guys are very knowledgeable.

All this collection of parts came from M-B Spares when I did the timing chain on my M117 450.

How long ago was that WGB?

Surprised to see a shiny aux air valve, thought they were as rare (or rarer) as hen's teeth.

koan

[CraigS]

This will give you a few more leads for parts in Australia. While not all have 116 parts, they can all be useful for one model or another.

http://www.silverstarspares.com.au/

http://www.mercwreck.com.au/

http://www.mbvparts.com.au/

http://www.kiran.com.au/

http://www.auststarmotors.com.au/parts

http://www.misterbenz.com.au/html/s01_home/home.asp?dsb=46

http://www.classicbritishgerman.com.au/default.asp

http://melbourne.citysearch.com.au/E/V/MELBO/0059/33/50/1.html

http://www.mbclassic.com.au/Introduction.htm

http://www.accessparts.com.au/index.html

http://www.vsiimports.com.au/

http://www.eurocarparts.com.au/

http://www.procureit.com.au/cartruck.html

http://www.imparts.com.au/

http://mbparts.denyer.net/

http://www.hsy.com.au/html/home.html

[WGB]

I have used M-B Spares in Canberra and the guys are very knowledgeable.

All this collection of parts came from M-B Spares when I did the timing chain on my M117 450.

How long ago was that WGB?

Surprised to see a shiny aux air valve, thought they were as rare (or rarer) as hen's teeth.

koan

A little over three years ago.

Just asked and they sent me one. About $185 from memory.

I still have the old one and I am sure that it could be fixed with the "Hammer modification" that was mentioned at the time on this site.

It fixed all my idling problems at the time - full stop.

Bill

[Ryan1980]

big thanks to tim and dave for coming over yesterday and helping me out!

the engine just won't turn to the right... i took the oil sump off and found a lot of peices of broken plastic. There was also one little piece down where the timing chain goes, which i attempted to get out... unfortunately i think i only succeeded in pushing it down further (i cant see it anymore).

Anyways the engine will turn to the left, and back to the right... until it gets to a certain point, then refuses to turn anymore.

Im sure tim or dave can elaborate more on whats going on, hopefully someone knows what to do!

Ryan

[TJ 450]

IMHO, everything needs to be reset as the valves are interfering or there is a slight chance part of that slider is caught in one of the sprockets, it feels like mechanical resistance though.
I suspect that all the rockers will have to be removed so that all valves are closed, then everything can be reset. Until then, I don't think anything can be done, as the engine is locked in that position.

Ryan, I think an extreme amount of patience is required here... you will get there.
Now all that is required is a valve spring compressor to remove the rockers.
The only other hurdle here is acounting for the slack in the chain, as I think that is what caused the engine to jam up in this case.

Tim

[WGB]

I have a 6.9 valve spring compressor but not an M117 one.

Over Xmas I was going to make a smaller foot for my 6.9 one (it's too big for a 450 motor) so that I could strip the usuable bits  ( eg hydraulic lifters) out of an old M117 motor I have but that is not much use to you at the present.

Don't try to turn the motor too much to the left - anticlockwise- it doesn't like it and that is one possible reason for odd chain slack as well as the more likely reason that one cam has jumped.

Bill

[Ryan1980]

sheez im starting to think ive bitten off more than i can chew here! thanks so much for your help guys! perhaps i can get a valve spring compressor and one of u guys could come around again and help me?

cos im officially way outa my depth here! lol