is doing is acting like a bad miss. Like it even has water in the gas. It> sputters and misses when it's under load [like climbing a hill or> mountain]. On straight roads when the load is reduced it straightens out> and runs well. I'm going to do a compression check here in a little bit

also change the plugs, wires and distributor cap before I get into the> head. We just bought this thing knowing it has a problem and the seller> seems to think he burned a valve. It also produces a puff of oil related> smoke out of the exhaust just after you start it [cold] and put it into> gear. It quickly goes away when shifting out of 1st and doesn't come back> again until it cools off and restarts.

"mbjj" <mbjj1@netscape.net­> wrote in message> news:MtJfe.10751$BE­3.7173@newsread2.new­s.pas.earthlink.net.­..>> Before I go taking off the head of this 1.0L Metro engine I'd like to>> know how a burnt valve acts in relation to the performance of the engine.>> What> it>> is doing is acting like a bad miss. Like it even has water in the gas. It>> sputters and misses when it's under load [like climbing a hill or>> mountain]. On straight roads when the load is reduced it straightens out>> and runs well. I'm going to do a compression check here in a little bit> and>> also change the plugs, wires and distributor cap before I get into the>> head. We just bought this thing knowing it has a problem and the seller>> seems to think he burned a valve. It also produces a puff of oil related>> smoke out of the exhaust just after you start it [cold] and put it into>> gear. It quickly goes away when shifting out of 1st and doesn't come back>> again until it cools off and restarts.>

The puff of blue smoke after a cold start often indicates worn valve> guides and/or> degraded valve guide seals. These seals are often easy to replace without> pulling the> head.>

If you have a burned valve, it often shows up as a dead or nearly dead> cylinder.> At higher RPM the effect of a dead cylinder is less noticeable, but the> loss of power is> obvious. The engine may miss, or sometimes even backfire.>

You can listen for a burned or poorly seating valve by disconnecting the> spark plugs so the engine> wont start, and turn the engine over with the starter. If every cylinder> is sealing about the same, you should have a consistent rhythm. If one, or> more, valves are burned, you will hear something different....like wa -wa> - WAH-wa-wa-WAH>

A compression test is a better way.

Before I go taking off the head of this 1.0L Metro engine I'd like to know> how a burnt valve acts in relation to the performance of the engine. What it> is doing is acting like a bad miss. Like it even has water in the gas. It> sputters and misses when it's under load [like climbing a hill or> mountain]. On straight roads when the load is reduced it straightens out> and runs well. I'm going to do a compression check here in a little bit and> also change the plugs, wires and distributor cap before I get into the> head. We just bought this thing knowing it has a problem and the seller> seems to think he burned a valve. It also produces a puff of oil related> smoke out of the exhaust just after you start it [cold] and put it into> gear. It quickly goes away when shifting out of 1st and doesn't come back> again until it cools off and restarts.