Engine wash










As I've taken the engine apart here and there to replace various parts I've gradually cleaned mine up pretty darned good a little bit at a time, focusing on whatever area I was replacing parts in at the time while the area was accessible. Nothing showroom quality or anything. Just clean.
That area down and under/around the water pump is one area to definitely take the time to clean up if you ever have to replace the pump. You can pretty much clean up the entire front of the engine from top to bottom there when that pump is off.
The best part about a clean engine is not getting yourself dirty and oily whenever you work on it. afterward. Keeps your tools from getting filthy, too, so very little tool cleanup, if any, is needed afterward.
I feel for you guys with the optisparks, though. I've never read one good thing about them on here. Nothing but problems. Glad I don't have one.
As I've taken the engine apart here and there to replace various parts I've gradually cleaned mine up pretty darned good a little bit at a time, focusing on whatever area I was replacing parts in at the time while the area was accessible. Nothing showroom quality or anything. Just clean.
That area down and under/around the water pump is one area to definitely take the time to clean up if you ever have to replace the pump. You can pretty much clean up the entire front of the engine from top to bottom there when that pump is off.
The best part about a clean engine is not getting yourself dirty and oily whenever you work on it. afterward. Keeps your tools from getting filthy, too, so very little tool cleanup, if any, is needed afterward.
I feel for you guys with the optisparks, though. I've never read one good thing about them on here. Nothing but problems. Glad I don't have one.





A lot of engines these days, you pop the hood and all you see is plastic. I topped some lady's coolant off in the parking lot of Auto Zone a while back because when I walked by she was standing there scratching her head without the slightest clue what to do and since everybody else leaving the store just kept walking by. I looked at it and pretty much everything was covered in plastic. I forget what kind of car it was. It wasn't American, though.
Last edited by Natty C; Feb 15, 2026 at 12:30 AM.
I applied this same process to the engine. Use plastic walmart bags to cover the alternator, the ecu, as much of the optispark as I can, and then hose the sides and top of motor with degreaser, and hand towel to do any scrubbing. And then gentle water to slowly rinse the degreaser, but I am aiming away from the front of the engine the whole time so the water runoff is going to the back of the car. The plastic bags around the opti are a failsafe for any moisture blowing around as I'm working. I also degreased the oil pan and underside of motor and sprayed water to rinse that as well. couple thousand miles later and the engine still runs great. The important thing is to take your time and just keep the hose away from the front side of the engine.
I applied this same process to the engine. Use plastic walmart bags to cover the alternator, the ecu, as much of the optispark as I can, and then hose the sides and top of motor with degreaser, and hand towel to do any scrubbing. And then gentle water to slowly rinse the degreaser, but I am aiming away from the front of the engine the whole time so the water runoff is going to the back of the car. The plastic bags around the opti are a failsafe for any moisture blowing around as I'm working. I also degreased the oil pan and underside of motor and sprayed water to rinse that as well. couple thousand miles later and the engine still runs great. The important thing is to take your time and just keep the hose away from the front side of the engine.
The Best of Corvette for Corvette Enthusiasts





For my money, Ajax dish liquid, hot water and good old fashioned elbow grease gets it done nice and good.
Oh...and the radio...turn the radio on while doing it.
Regardless of how one goes about it, pretty much all of the engines I've seen posted on here, even just pictures illustrating a mechanical problem when a question is presented on how to resolve, the engines tend to appear clean and very well kept.
You see a few dirty/unkept ones here and there, but generally very few.
Last edited by Natty C; Feb 16, 2026 at 01:54 AM.














