I'd like to hear everyones opinion on this. How do you wash the engine without damaging anything? For example: Do you wash it with the engine running? Do you cover any parts to keep them dry? Do you use high-pressure spray or a low pressure?
Eric 2000 XJ "PROJECT RUBICON" 3-link front / 4-link rear / coilovers / running 37's on Dana 60s
My website - EricsXJ.com
Get a bottle of Engine Cleaner, like Gunk and then read the instructions. You need to cover all electric components as best possible and the engine must be cool. YOu do not want to spray cold water on a HOT engine. Trust me!
91 YJ, 4 banger, 3" Rough Country, 3" body lift, 31X10.5 BFG KO's on 15X10 bajas, K&N, restrictor removed.
i third that WASH WHEN COLD i use Super Clean by Castrol i have been using it since it came out(6 year's) it is safe for everyone does not have a smell like Gunk!!! my opinion!!!! i wash mine once a month oh heck i do not cover nothing just spray and wash
Well... FWIW, I just spray the engine down with my pressure washer. I don't cover anything. I've cleaned my engine bay this way after every wheeling trip since I've owned my YJ, and have yet to encounter any problems. I spray it down while the engine's cold, then start the engine and let the water boil off. Honestly, I have had no problems doing this.
In fact, I clean all my engines this way, and none have had a problem - from my grandmother's '88 Cadillac to my sister's '01 Exploder. The key is to not blast anything so hard that water is forced past any seams.
I use the Castrol Super Clean in a spray bottle, then blast the engine with the hose to rinse it off, run the engine to dry it. I figure if my engine won't take a dousing with a hose, no point in even attempting a water crossing.
So far I've had no engine problems with either, but I do try to avoid deep water crossings. Not many of them in SoCal anyway.
91YJ Sahara, SOA, 4.88's, 35's, Locked
The best way that i have heard of is to spray your engine with "Gunk" engine cleaner when its cold. Than rinse it off with a very low water pressure. They suggested using one of those old style lawn sprinklers, you know the one that has the bar with all the holes in it. Then run the engine for a bit till it dries. If you want to be even more shiny than spray tire shine on the plastic stuff. My girlfriend read it on a VW forum and you know how crazy they are about there cars ,so we tried it out and it worked great. Its amazing how new it looks even without the tire shine. Her car wasn't that bad cause its a 97 and she keeps it clean, but give it a try!