spark plug

I don't want to do it! Worst case is a miss anyway! Could be worse as this 200BR allows access from either side of engine after removal of partitions. 5.0 L MPI W/ #600000+. Pulled one and it's a platinum AC 42-932 as designated with .060 gap as specified. Replacement under service bulletin...

Yesterday, I just finished replacing the fuel/water separator on my Merc 5.0 Alpha One ('94 180BR Signature). A previous owner had upgraded from a 4.3 and it's a tight fit. The separator seemed to solve 90% of the fuel delivery issue, as I just had it out on the water this afternoon and was...

Hello all, I have a 1997 330 Sundancer with 7.4 Bluewater engines. I can follow the plug wires down to the spark plugs and have enough room to work in that area. My question is...Is it possible to remove the plugs without removing the manifolds. It looks like it's going to take some time and...

i have 8.1 mercruisers. the stbd engine has been running increasingly rough lately and has only gotten about 3200 rpm for a while so i had the plugs replaced because the mechanic had stated before they were the wrong ones anyway. he came back and said 3 and 5 were water fouled. i dont know...

Spark Plug replacement time, sorry for all of the questions. Anyone have a recommendation for spark plugs for an 88 7.4l Mercrusier 330HP? I am due to change them out, I have not taken a look to see what is in there currently. Does anyone know what the OEM plug was? Any recommendations on...