My AMC 360 has started smoking (blue). It seems to be the worst when I let off the gas, like shifting gears or to come to a stop. It burned a quart of oil over the past 1000 miles. Any guesses what's causing it?
It has always burned a little oil, 1/2 qt to 1 qt between changes, but it seems to have gotten much worse the past week or 2. Is it a major problem, or will it be ok to just keep adding oil until I can get it checked out and fixed this summer?
The motor has around 80,000 miles on it. I haven't done a compression test b/c I don't have a tester. Either going to borrow one this weekend when my buddy gets into town or buy one when I get back home.
It was a quart low, so I added a quart. Just under 100 miles later it's a qt low again. Changed spark plugs and #7 was the only one that was oily. How do I tell if it's a problem with the rings or valves?
How do I tell if it's a problem with the rings or valves?
Do a compression check. If none of the cylinders are low, the rings and valves are basically OK.
If one or more of the cylinders are low, then squirt some motor oil into the cylinder through the spark plug hole and check compression again right away. . If that improves the compression, then it was the rings that are worn. The valves may also be worn, but at least you know that the rings are worn. If squirting oil in doesn't improve the compression at all, then it's likely just some slightly leaky valves.
1977 CJ7, AMC360 V8 w/ headers, DUI HEI, Edelbrock intake, Holley 4150 carb, , TF999, D300, D30 front and AMC20 rear with 4.56 gears and lockers both ends, 4" susp lift, 2.5" body lift, 35" BFGs, ARG steering, 8000-lb winch, etc.
Finally got some time off of work/school and found out the problem is with the piston ring. I would love to pull the motor, tear it down, and rebuild it; but I'm going school, only able to work part time, and money's tight. How hard would it be to replace the rings just on that cylinder for without pulling the motor? Also, can it be done without removing the head? How much would it cost to pull all the cylinders and do it myself?
Sorry for all the questions, but this is my first time doing any real motor work