Aluminum vs magnesium vw engine case

No, never heard of a pure Aluminum VW engine case. I was under the impression that all the aircooled VW motors were made of a Magnesium-Aluminum alloy. I think the new Mexican cases are cast using the later, stronger alloy - but I could be wrong

Post by sideshow » Mon Aug 11, am. Post by raygreenwood » Mon Aug 11, pm. Post by sideshow » Tue Aug 12, am. Post by raygreenwood » Tue Aug 12, pm. Post by Scott Novak » Thu Aug 14, pm. Post by rcb78 » Fri Aug 15, am.

Aluminum vs magnesium vw engine case

Privacy Terms. Skip to content. Quick links. Board index Talk Authenticity Corner. I need the help of the porsche community about the anti corrosion treatment of the gearbox and engine case. The result should be a light brown colour. Is there anybody out there with experiance in magnesium case treatment? You do not have the required permissions to view the files attached to this post. Last edited by Schaefer Ralf on Thu May 25, am, edited 1 time in total. Okrasa on thesamba. He's in SoCal and does it. Cheers, -Greg. And what did VW do in the early 50s, the same thing? Sacrificial coating? It's pretty much a standard anti corrosion treatment, most FBOs will have a tank.

My case cracked and leaks oil under pressure, so I'm worried hearing these "poor quality" rumors! Post by raygreenwood » Mon Aug 11, pm Having worked for a company that specialized in products made from aluminum and magnesium extrusions They got just the right amount of all qualities for the cost and projected lifespan.

View original topic: New case quality, aluminum vs mag. Page: 1 , 2 Next. I ordered a new aluminum super case several weeks ago, and it appears the vendor is having issues getting one. I can't get clear answers as to : is this still an issue? Is the quality worth waiting for?

Login to Your Account. Remember Me? Results 1 to 12 of Thread: Aluminum vs Magnesium Gearbox. Thread Tools Show Printable Version. Is there any consensus that the aluminum case is a worthwhile upgrade over the mag case, or am I just spending money?

Aluminum vs magnesium vw engine case

Page: 1 , 2 Next. Besides strength and weight what are the differences? The OEM magnesium crankcase has a specified main bearing 'crush' at the specified torque of I think 24ft lbs. If we were to change to the Aluminium case do we need to change the torque? Does one case have better heat conduction than the other?

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Post by sideshow » Mon Aug 11, am How do you define stronger? Scott Novak. Some days it's just not worth chewing through the restraints I was under the impression that if there have been so many problems with Magnesium, and type 4's are so strong, that some aftermarket company SHOULD make the aluminum type 1 case. Iron stock costs less than aluminum, is harder to machine, does'nt conduct heat as well as aluminum and eventually costs the car owner more to "carry" around the additional weight throughout the vehicle's life. The characteristics of deflection under load are very similar between extruded and die cast parts whether aluminum or magnesium is used. I personally prefer the mag case for 1. I would love to get rid of the sump even being stock height as I have bashed up the plate a few times. The material of less density between these two outer surfaces tends to act as a connector between these surfaces. Anybody have any idea why? Maybe not. Yes, it is minimally lighter than aluminum, but it's constantly trying to return to its original form. Last edited by Schaefer Ralf on Thu May 25, am, edited 1 time in total. Post by sideshow » Tue Aug 12, am.

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I was under the impression that all the aircooled VW motors were made of a Magnesium-Aluminum alloy. I actually weighed one once. My point was the slight increase in temp an aluminum case causes is not so critical compared to the strength it has. On Sun, 17 Sep , Mike Fritz wrote:. Sand casting is not a mag versus aluminum issue. Even aluminum has some of this characteristic Aftermarket magcases are not as they were when VW made them, and aluminium cases are no better when it comes to quality control. What about Pauter? Magnesium alloy makes for a very stiff and light case as long as temp extremes are not a problem. When magnesium cases are no longer available I will no longer build engines. Is there anybody out there with experiance in magnesium case treatment? Post by Piledriver » Sun Aug 17, am.