I have a 1985 mercruiser 470(3.7l) and am going to do a compresion check so I might as well replace the spark plugs while I'm at it. I thought a quick web search would give me the number to get, but I can't seem to find what plug to buy. I don't need an expensive platinum, just your basic plug...
I going to order the 91146A Ignitor II DELCO 4 for my Mercruiser 470 and thought from what I read that it might be a good idea to upgrade the coil??? Which Flamethrower should I get? Ohms? model? Also any suggestions on spark plug wires?
One of the reasons that I'm doing this is that while in...
My Mercruiser 470 idles fine, revs fine and goes into gears but when I took it to the lake and it would only get to about 2.5k rpms and it would start to cut out and almost die. After it had almost stalled out and the rpms got lower it would sometime back fire a little. When not in gear the...
