Pressure Testing Cylinder Heads and Blocks
S&S Auto Parts Machine Shop Service
Dave Sellers
New Palestine, Indiana
317- 861- 442
The inspection process requires pressure testing a cylinder head. The chambers are filled with coolant and air under a great amount of pressure. In doing this it determines if there are any internal cracks or if there is leakage throughout the head. While pressure testing a head we are actually replicating the process that a cylinder head goes through while in an engine.
Magnafluxing - Magnafluxing a head is actually checking for external casting cracks or heat cracks. This is done by magnetizing the head using a fine particle that will show the cracks. The cracks are caused by overheating and/or freezing of the engine. Magnafluxing is only performed on cast iron cylinder heads, while pressure testing can be performed on both types of heads.
we double check for pin holes after magnafluxing and dye testing are completed. Cracks and defects not detected during the first process are found at this time.
S&S machine shop has the facilities to pressure test cylinder heads.
