Hello All,

I recently posted a query involving my 1996 850 GLT wagon, non-turbo with a 5-speed manual which when it hit 430,000 miles (I purchased the car new) burnt an exhaust valve in cylinder # 1. I am having the engine rebuilt at a private garage. The mechanic at the private garage has recommended replacing the burnt valve with a genuine Volvo exhaust valve and having the remaining valves "cut" if I am using the correct term at the machine shop so they sit properly in the head which will also be machined. Another local mechanic, who I have known for many years and whose advice I respect thinks the better practice would be to replace all the exhaust valves. By "cutting" the edges of the old exhaust valves, you are making them thinner and more prone to fail in the future. Hence the better course of action is to just replace them with new exhaust valves. This advice seems to make sense, but I would welcome the opinions and advice of others. Thank you in advance to all who respond. I appreciate your help. This is "new territory" for me.

Hugh