Installing Cylinder Sleeves. Damaged and worn cast iron and aluminum engine blocks have long been repaired using dry sleeves. Installing a repair sleeve can often save the block if a cylinder has excessive taper wear, or is cracked, scored or otherwise damaged, and boring out the damaged cylinder.
If you have a collagen vascular disease, your immune system causes inflammation in your collagen and nearby joints. Several collagen vascular diseases, including lupus, scleroderma, and rheumatoid arthritis, are more common in women than in men. This group of diseases usually affects adults in their 30s and 40s.
Causes of Peripheral Vascular Disease. The most common cause of PVD is peripheral artery disease, which is due to atherosclerosis. Fatty material builds up inside the arteries and mixes with calcium, scar tissue, and other substances.