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 6.3
 My 1971 300SEL 6.3
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EugeneGroysman

USA
120 Posts

Posted - 07/11/2011 :  02:53:34  Show Profile  Reply with Quote
Last time it was registered in 1995.
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EugeneGroysman

USA
120 Posts

Posted - 07/28/2011 :  00:49:42  Show Profile  Reply with Quote
I got all parts ready to put crankshaft seal cover back.
Where does this ring go to? I don't recall having a ring like this when I removed the cover.
Eugene




1971 6.3
2008 S550
2011 ML350
1997 Porsche 993 4S 'Kills bugs fast'.
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Ron B

Australia
11612 Posts

Posted - 07/28/2011 :  05:08:13  Show Profile  Visit Ron B's Homepage  Reply with Quote
Spacer ring between the pulley hub and the chain drive gear ? i haven't seen one either but if it came off the end of the crank,that is only place i would expect to find such a thing...or maybe it just wandered in there to confuse you.

quote:
12-14-2004, 11:49 PM #8
Tom Hanson
MBCA Member

What the heck, try to stuff a MB 6.9 liter V8 in it. What a machine that would be..
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Tom Hanson
Orange County Section
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Art Love

Australia
6226 Posts

Posted - 07/29/2011 :  02:44:05  Show Profile  Reply with Quote
My M100 Parts Manual lists optional spacer rings of various thicknesses both in front and behind the gear, but only in early 600 motors.
Art
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starmotors

USA
7 Posts

Posted - 07/29/2011 :  14:05:00  Show Profile  Reply with Quote
Hi Guys, the spacer ring is there to offset the harmonic balancer. the shim is .020 thick. this allow the new seal to ride on a ungrooved area on the balancer. In the past we have replaced the seal and they still leak. This allow a new surface to properly seal. neil
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Art Love

Australia
6226 Posts

Posted - 07/29/2011 :  18:53:08  Show Profile  Reply with Quote
So Neil, where does it go in the sequence in relation to the gear and the seal and the balancer? This may be a stupid question.
Art
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Ron B

Australia
11612 Posts

Posted - 07/30/2011 :  18:41:57  Show Profile  Visit Ron B's Homepage  Reply with Quote
It's to move the wear part on the hub out further so that the seal lip runs on a 'new' section .Any more than .020 and the vee belts will be too far off line.

quote:
12-14-2004, 11:49 PM #8
Tom Hanson
MBCA Member

What the heck, try to stuff a MB 6.9 liter V8 in it. What a machine that would be..
__________________
Tom Hanson
Orange County Section
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EugeneGroysman

USA
120 Posts

Posted - 08/01/2011 :  21:19:25  Show Profile  Reply with Quote
Neil,
Please confirm if this is the right way to place the ring.





I placed the cover on the balancer to see how it would look from inside. Please, note the spacer ring on last pics.










1971 6.3
2008 S550
2011 ML350
1997 Porsche 993 C4S 'Kills bugs fast'.
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Ron B

Australia
11612 Posts

Posted - 08/02/2011 :  19:04:57  Show Profile  Visit Ron B's Homepage  Reply with Quote
yes, that is fine. Note that the two pins are off set from the centerline of the crank shaft. This is to prevent the damper being placed in the spot and throwing both the balance and the ignition timing marks off.
The best idea is too sit in front of the engine and sight through the damper at the crank . check that the dowel pins are in correct alignment before placing the damper on the crank.
Check the damper bolts for tightness before fitting .


quote:
12-14-2004, 11:49 PM #8
Tom Hanson
MBCA Member

What the heck, try to stuff a MB 6.9 liter V8 in it. What a machine that would be..
__________________
Tom Hanson
Orange County Section
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EugeneGroysman

USA
120 Posts

Posted - 08/15/2011 :  22:39:57  Show Profile  Reply with Quote
Finally, I managed to put pulley back in place!

Before cleaning surface.



After cleaning surface.















I just received my water pump back from Star Motors.




1971 6.3
2011 S550 4matic
2011 ML350
1997 Porsche 993 C4S 'Kills bugs fast'.
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Ron B

Australia
11612 Posts

Posted - 08/19/2011 :  00:57:27  Show Profile  Visit Ron B's Homepage  Reply with Quote
Looking great!

quote:
12-14-2004, 11:49 PM #8
Tom Hanson
MBCA Member

What the heck, try to stuff a MB 6.9 liter V8 in it. What a machine that would be..
__________________
Tom Hanson
Orange County Section
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james lawson

USA
1315 Posts

Posted - 08/19/2011 :  07:35:17  Show Profile  Reply with Quote
Art,
The way I read Neil's response is that the ring would fit between the balancer and the seal.
He says it is there to offset the balancer from the seal, and provide a flat surface between it and the balancer. So, it would be outside as opposed to inside as Eugene has it, since it cannot offset it from the inside.
Jim

jim
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Art Love

Australia
6226 Posts

Posted - 08/19/2011 :  10:21:28  Show Profile  Reply with Quote
Thanks Jim, but I don't think so. If a double lip seal leaks, my understanding is that it leaks between the seal and the shaft,. I may well be wrong, but it seems to me that the idea of the double lip is that the second seal catches whatever the first doesn't, making leaking less likely. After a long time, the shaft wears/gets surface corrosion right where the lips sit on the shaft, making a new seal inefficient. So moving the seal lips on the shaft 2 thou makes sense to me.

In this case, the shaft where the seal sits is actually the hub of the harmonic balancer which slides over the crankshaft and locks onto it with those tabs. I presume that that cup on the shaft in front of the gear fits over the outer lip of the seal or into the groove in it when the housing is reapplied, so it does make sense to put the spacer right where Eugene put it to push the balancer 2 thou forwards on the crank shaft and provide the seal with new surfaces 2 thou further back on the balancer hub section. But it does look a bit sloppy because of that notch at the back of the shaft. The spacer is slightly oversize on the shaft and that allows for the notch. It just sits off center.

Your suggestion that the spacer go in front of the seal to my mind won't work. The spacer won't fit over the hub of the balancer to fit in that location. One of Eugene's photos in the last batch he posted is a bit confusing - the 4th showing the shaft with the seal and housing in place before the balancer is applied - in that it looks as if the spacer could go in front of the seal. But the hub of the balancer has to fit over the shaft, between it and the seal. The oil seal is not between the rear face of the balancer and the face of the seal, but between the inner lips of the seal and the hub.

I hope I am making sense.
Art

Edited by - Art Love on 08/19/2011 10:22:48
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EugeneGroysman

USA
120 Posts

Posted - 08/24/2011 :  00:04:02  Show Profile  Reply with Quote
Thanks to All for your support! I would never come this far without your advices and comments.

Almost all parts around engine are ready for assembling.






Should I change that gold color to a more subtle color?



What brand/types of motor and transmission oil do I need to use?


1971 6.3
2011 S550 4matic
2011 ML350
1997 Porsche 993 C4S 'Kills bugs fast'.
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Art Love

Australia
6226 Posts

Posted - 08/24/2011 :  03:21:08  Show Profile  Reply with Quote
It's a bit "bling", but it will tone down with use. Maybe a light mist of silver over it would tone it down a bit. I thought I caught a glimpse of your fan shroud in one of the earlier pictures, but I don't see it in the current lot. I presume you have it and it has been painted or powder coated as well.

There is another recent thread on ATF. Basically, you need a Dexron III equivalent transmission oil. I would suggest you use a 15W50 oil. Others may have alternate suggestions.
Art

Edited by - Art Love on 08/24/2011 03:22:00
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