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Dead give away on #4 burning water or coolant. If you had a bore scope to see inside of cylinder the combustion chamber/valves will be quite clean as well.Are the new plugs ran only at idle?
Quote from: fabr on February 21, 2023, 11:32:19 AMDead give away on #4 burning water or coolant. If you had a bore scope to see inside of cylinder the combustion chamber/valves will be quite clean as well.Are the new plugs ran only at idle?I have an inspection cam that will fit down the plug hole. #4 is steam bath white alright lolSo the oem paper lower intake manifold gaskets are. Known fIlure point. Felpro makes a metal replacement version and I picked one up.I would use a thin coat of either permatex ultra gray or hylomar on both sides of it. This issue was starting when Scott made his last run 8 years ago but I thought it was black smoke. Briefly, Spoke with enemy about it last night. It does need to be run as there is def crud built from sitting and possibly a sticky ring or 2. Many years ago a Chevy service procedure was to run a fully warmed up engine at a high idle around 1800 IIRC and use a spray bottle of water to put a heavy mist into the carb/throttle body for something like 15 minutes to clean out crud like that/carbon and free up stuck rings from bad fuel or whatever. It fires off in 4 to 5 cranks, no pulsation or surging during cranking like a weak cyl. Idl3s smoother then my 2005 lesabre commuter car #2 looks like it a touch on the dark side to me. That cyl was one that had a bad coil so not sure how much build up is in the cyl either. A lot of unknowns when engines sit too long.I have not driven the rail yet. I have only started it, let it idle and rev'd it as seen/heard in the video. It has hit operating temp 5 times before last night. The 3 plugs on the pass side were interesting with tan coloring on only half the ceramic, front to back and not top to bottom. Seen that lots of times. Not out of the ordinary with likely injectors that are fouled from sitting. Mix some ethanol into the gas to maybe around 20 percent and run it for a while. It will be a bit lean but should run OK and clean some of that old fuel deposits.Drain fuel and refill with fresh. Might likely make a big difference.
That much bump steer total or each side?