928 Motorsports can repair Scratched Cylinder Walls
09-23-2005, 06:33 PM
#1
Developer
Thread Starter
928 Motorsports can repair Scratched Cylinder Walls
928 Motorsports has become a dealer for the US Chrome NiCom® repair system for Alusil and Nikasil blocks. Their NiCom® facility is literally just minutes up the street from our offices, providing the best service (ISO 9002 certified) you can get on your engine cylinders and blocks.
Now, scratched cylinder walls - even deep scratches - do not have to be the end of your engine. We can weld them up, bore them out, NiCom® plate them, and hone them to final size. The finished cylinder wall is harder than the original, and will last longer.
WHAT IT IS: The US Chrome process is trademarked as "NiCom®", (because Porsche holds the trademark on the term "Nikasil®") , but the process was brought over from the Mahle plant in Stuttgart and is identical to the quality and finish that Mahle performs for Porsche on its OEM engines. There are a few other platers in the US that have an aluminum block plating process, but they do not deposit the density of 2 micron-sized carbide particles as NiCom® does, and the end result is inferior.
NiCom® is an electroplated nickel matrix with silicon carbide particles uniformly dispersed throughout. The carbide is extremely hard, but not abrasive because of its minute particle size, which averages two microns. The inclusion of these dense ceramic particles raises the hardness of the composite and provides unique properties, particularly when plated on aluminum. NiCom® has been found to be so effective that leading manufacturers (General Motors, Mercury, Harley-Davidson, Kawasaki, and others - see pictures below) are now using it on new cylinders as well as repairs.
OUR BLOCK REPAIR/PLATING SERVICE:
Ship your bare block to us at 928 Motorsports, LLC. Prepare your block by removing all the steel from it, like locating pins and head studs. Send just the bare block, no crank or rods installed. If there are steal parts in the block that you cannot remove, they will be removed for you but you will be charged extra for this service. The block does not have to be clean.
Let us know what your plan for Pistons is. We can repair the scratched cylinder wall and return it back to OEM condition if you like for use with stock pistons, or we can bore your block out for use with less expensive, readily-available aftermarket forged pistons. We will mic out the bores of each cylinder, and work with you to select the boring (standard size, or oversized) that you want for your application.
The price in this listing covers the standard 4-part process: 1) strip/clean the block with a series of baths in acids and cleansers and washes. This also etches the block for optimum adhesion of the plating. 2) Bore the block to your specs for the finished piston size you select. 3) NiCom plate the bores, and 4) Hone the cylinder walls with 10-bit diamond hones to your finished size. The special hone we use also leaves an excellent surface for oil cling to the cylinder walls - reducing friction and increasing engine life. If scratches are deep, the scratches will need to be filled in before boring by welding them up - and this will bring an extra charge with it.
Now, scratched cylinder walls - even deep scratches - do not have to be the end of your engine. We can weld them up, bore them out, NiCom® plate them, and hone them to final size. The finished cylinder wall is harder than the original, and will last longer.
WHAT IT IS: The US Chrome process is trademarked as "NiCom®", (because Porsche holds the trademark on the term "Nikasil®") , but the process was brought over from the Mahle plant in Stuttgart and is identical to the quality and finish that Mahle performs for Porsche on its OEM engines. There are a few other platers in the US that have an aluminum block plating process, but they do not deposit the density of 2 micron-sized carbide particles as NiCom® does, and the end result is inferior.
NiCom® is an electroplated nickel matrix with silicon carbide particles uniformly dispersed throughout. The carbide is extremely hard, but not abrasive because of its minute particle size, which averages two microns. The inclusion of these dense ceramic particles raises the hardness of the composite and provides unique properties, particularly when plated on aluminum. NiCom® has been found to be so effective that leading manufacturers (General Motors, Mercury, Harley-Davidson, Kawasaki, and others - see pictures below) are now using it on new cylinders as well as repairs.
OUR BLOCK REPAIR/PLATING SERVICE:
Ship your bare block to us at 928 Motorsports, LLC. Prepare your block by removing all the steel from it, like locating pins and head studs. Send just the bare block, no crank or rods installed. If there are steal parts in the block that you cannot remove, they will be removed for you but you will be charged extra for this service. The block does not have to be clean.
Let us know what your plan for Pistons is. We can repair the scratched cylinder wall and return it back to OEM condition if you like for use with stock pistons, or we can bore your block out for use with less expensive, readily-available aftermarket forged pistons. We will mic out the bores of each cylinder, and work with you to select the boring (standard size, or oversized) that you want for your application.
The price in this listing covers the standard 4-part process: 1) strip/clean the block with a series of baths in acids and cleansers and washes. This also etches the block for optimum adhesion of the plating. 2) Bore the block to your specs for the finished piston size you select. 3) NiCom plate the bores, and 4) Hone the cylinder walls with 10-bit diamond hones to your finished size. The special hone we use also leaves an excellent surface for oil cling to the cylinder walls - reducing friction and increasing engine life. If scratches are deep, the scratches will need to be filled in before boring by welding them up - and this will bring an extra charge with it.
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09-23-2005, 06:45 PM
#8
Developer
Thread Starter
This DART Racing block is out of the etching vats and ready to be NiCom plated. Notice the rubber plugs used to avoid plating inside the lifter bores. On 928 and 944 motors, a coating is also used to prevent the depositing of NiCom material in our Crankshaft Main Bearing areas
09-23-2005, 06:48 PM
#10
Developer
Thread Starter
This is the special 10-bit diamond hone that will be used on your Porsche engine. Common honing bits are 6 or 8-bit units. This 10-bit unit will produce a bore that is more perfectly cylindrical than others.
09-23-2005, 06:54 PM
#13
Developer
Thread Starter
More info (including pricing) and pictures are available here:
http://www.928motorsports.com/services/uschrome.html
I'm happy that the 928 just took another step towards being able to be around forever!
http://www.928motorsports.com/services/uschrome.html
I'm happy that the 928 just took another step towards being able to be around forever!
