Some pictures of my Weistec 3.0 garage build
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
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C63
Link to the quote: http://www.weistec.com/m159buckets.html
"
By now many have heard of the issue of accelerated wear in the valvetrain of the M156 engine. The materials design of the valvetrain components results in repeated contact of soft metals with hard metals. Eventually this can result in premature wear of the valvetrain, degrading engine performance or even causing engine failure.
Many M156 valve buckets are prone to "bleed down" resulting in excessive valve lash during cold start up, commonly heard as a loud tapping noise until the engine fully reaches operating temperature. Excessive valve lash is a major contributor to accelerated valvetrain wear. The M159 engine, used in the SLS and SLS roadster, features valve buckets that are of an improved design. The M159 valve buckets feature an anti friction coating to reduce wear on the camshaft lobes. They also have an improved hydraulic system that will not "bleed down" like the M156 valve buckets. Installation of M159 valve buckets will help prevent any premature wear to your engine's valvetrain and make for a quieter engine on cold starts."
My car was very prone to the start up tapping as I drive it once or twice a week at most.
The headers are custom made headers. They are mild steel and ceramic coated with a 2inch internal diameter of the primaries into a 3inch collector.
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C63
First order of the day was to remove the wiring harness and then the intake manifold along with the injectors and fuel rails. Was pretty straight forward. Once removed it looks like there is nothing left of the motor.
The inlet manifold.
We then went ahead and stripped everything of the front of the engine. There are quite a few interesting channels left.
Valve cover off showing the camshafts as well as the variable cam timing adjusters.
This is the point we got more or less stuck and where the expensive special Mercedes tools are required. We sorted most of the cam placement problems etc without needing the tools but with the cam adjusters pictured below a tool is needed to hold those fine gears together at a exact place prior to removal. We pondered for a while and devized a home remedy which we will be attempting on our next engine strip session.
Since we had some prep to do with the cam removal we spun the motor around and removed the oil sump. We where really shocked when we saw the size of the oil pump. The oil system is overkill in this car and the oil pump alone weighed close to 5kg. My engine builder mentioned that after seeing this the dry sump system on the SLS was either fitted to lower the motor or for just having something nice on the sales prospectus.
At this point we called it a day.
The inlet manifold.
We then went ahead and stripped everything of the front of the engine. There are quite a few interesting channels left.
Valve cover off showing the camshafts as well as the variable cam timing adjusters.
This is the point we got more or less stuck and where the expensive special Mercedes tools are required. We sorted most of the cam placement problems etc without needing the tools but with the cam adjusters pictured below a tool is needed to hold those fine gears together at a exact place prior to removal. We pondered for a while and devized a home remedy which we will be attempting on our next engine strip session.
Since we had some prep to do with the cam removal we spun the motor around and removed the oil sump. We where really shocked when we saw the size of the oil pump. The oil system is overkill in this car and the oil pump alone weighed close to 5kg. My engine builder mentioned that after seeing this the dry sump system on the SLS was either fitted to lower the motor or for just having something nice on the sales prospectus.
At this point we called it a day.
Last edited by GeorgeSmooth; Jul 17, 2012 at 07:18 PM.
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Compared to a BBC (big block Chevy) with a standard pan holds 5
My engine builder mentioned that after seeing this the dry sump system on the SLS was either fitted to lower the motor...
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2009 C63, 2000 ML 430, 1994 Del Sol Vtec
+1 on consistent oil pressure. Never have to worry about oil starvation at high lateral G's. Something I have to combat in my Honda race car with crazy baffles and an accusump since a dry sump does not exist for it. 
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2007 E63 w/P30 and Eurotech CF Diffuser
It is to lower the motor. Imagine the look of the SLS with the whole nose 4" taller. US crash requirements have been increasing the required crush distance between the top of the hood and the engine to reduce injury if you hit a pedestrian. This is why the Camaro, Charger, Chrysler 300 look the way they do. big boxy body and short windows. I hate the look of those cars.
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07 M6 | 09 RX-8 | 07 LGT Wagon | 17 Bolt
The pan still needs crazy baffling either way.
A well designed wet-sump system may actually perform better than an OEM grade dry-sump system.
Anyone know if the SLS has external scavenge pumps like a true race system?
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C63
It is to lower the motor. Imagine the look of the SLS with the whole nose 4" taller. US crash requirements have been increasing the required crush distance between the top of the hood and the engine to reduce injury if you hit a pedestrian. This is why the Camaro, Charger, Chrysler 300 look the way they do. big boxy body and short windows. I hate the look of those cars.
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C63
Kudos to AMG on this.
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Weistec
George, great pictures and a very clean garage as well. Results will be great guys!
Merc63, the cam gears look like they split and this is part of AMG's honestly brilliant design. The thinner gear is spring loaded to keep constant back lash for near perfect timing and harmonics between the crankshaft and cams. When you remove cams those must be locked in place.
Nice job once again George. Let us know if we can assist at all. Thanks.
Weistec Engineering
Merc63, the cam gears look like they split and this is part of AMG's honestly brilliant design. The thinner gear is spring loaded to keep constant back lash for near perfect timing and harmonics between the crankshaft and cams. When you remove cams those must be locked in place.
Nice job once again George. Let us know if we can assist at all. Thanks.
Weistec Engineering
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'15 VW GTI
George, great pictures and a very clean garage as well. Results will be great guys!
Merc63, the cam gears look like they split and this is part of AMG's honestly brilliant design. The thinner gear is spring loaded to keep constant back lash for near perfect timing and harmonics between the crankshaft and cams. When you remove cams those must be locked in place.
Nice job once again George. Let us know if we can assist at all. Thanks.
Weistec Engineering
Merc63, the cam gears look like they split and this is part of AMG's honestly brilliant design. The thinner gear is spring loaded to keep constant back lash for near perfect timing and harmonics between the crankshaft and cams. When you remove cams those must be locked in place.
Nice job once again George. Let us know if we can assist at all. Thanks.
Weistec Engineering
