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.
For yearâs urologist have speculated on the potential causes of Peyronieâs disease including infection, inflammation, and immune system disorders. None of these theories are plausible however. For men without any systemic vascular risk factors, vigorous sexual activity causing trauma to the erect penis is the most likely cause the formation of scar tissue.