Trying to get home last night while it was raining, my '70 F100 360 must've ingested some water. It started bucking and sputtering and eventually died. Started right up each time it died, though. It also seems like I'm running on 7 cylinders (spark plug may be bad). Anyway, I need to know where to check for water. I'm going to replace all the plugs today.

Thanks,
Evan

 

If you have a bad hood-to-cowl seal, water will drip right on top of your air cleaner housing. You will probably not find a vintage 67-72 truck with the original seal still in place. If you're lucky the water just steamed a lot and collected in the distributor. If you're unlucky, and running a straight carb with no air filter then water can fall down into your carb. When I bought my 72 I found water in the filter housing and its been collecting water for a while because its all rusted. The part on the inner side of the filter still has clean original paint so I know the filter has kept the water out. Replace the hood-to-cowl seal and no more water falls into your engine compartment. Water in the engine can be a very bad thing. Water in your engine oil will make the oil look like a chocolate milk shake and is very bad for an engine. Change the oil. Water in a piston will keep it from firing (feel like running on 7 cylinders). Remove your spark plugs and crank the engine. If there's water in there you'll see it shoot out the spark plug holes. I've seen water in an engine before. My buddy dumped his motorcycle into a stream. He got up, removed the plugs and cranked a bunch of water out the spark plug hole. He needed an oil change first thing. I saw another guy in a 4W Toyota try to blast through a 3 ft. deep stream. His air intake was dead center of his grill. He sucked up so much water his engine wouldn't even crank. I think his cylinders were full. We pulled his air intake off and about a quart of water poured out. We took out his plugs and cranked it and a couple gallons shot out. His truck ran like hell afterward. I'm guessing he bent something (valves, rods, etc). My point is, get the water out. Synthetic oils is supposed to not mix with water and get that milk shake look. Maybe give that a try. I know its $4 a quart but it's cheaper than a new engine.

 

Could be some water got into the dizzy. Do you have points?

 

Well apparently, the air/fuel ratio got thrown off, not water into the engine.Last night a buddy (one with the '74 F100) and I reset the idle and A/F mixture and all is good.