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Unread 08-09-2010, 05:23 PM   #1
Hillbilly Jeep
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1990 YJ Wrangler 
Join Date: Sep 2007
Location: Enterprise, wv
Posts: 215
cleaning a motor

hey all i was wondering how u all wash your motors down.. mine has alot of crap all over it and i want to was it give it a good cleaning before i put in my new dizzy and rebuild my carb.. i have a power washer if thats what u all are using

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Unread 08-09-2010, 05:34 PM   #2
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1992 YJ Wrangler 
Join Date: Jul 2010
Location: Wasilla, Alaska
Posts: 416
I'm thinkin of doin mine soon too cause it sure needs it...I've read on here that a power washer & engine degreaser is your best bet. I've also read that you want to steer clear of getting electrical parts wet & you should stand 3ft or more away with the power washer, but I've also read threads where people have said it's ok to get electrical parts wet, as long as you let everything dry for quite a few hours before starting up the jeep. You may be able to do a search & get more info on washing the engine compartment.
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Unread 08-09-2010, 05:37 PM   #3
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1995 YJ Wrangler 
Join Date: Feb 2009
Location: Los Angeles. California. United States.
Posts: 4,910
I rarely wash my engine. If I do, I am very selective as to where I am pointing the nozzle. Too may wires, sensors, and other I am concerned about. Its best if you just use different types of scrub brushes and such, and wash it by hand in my opinion.
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Unread 08-09-2010, 05:50 PM   #4
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1987 YJ Wrangler 
Join Date: May 2006
Location: fond du lac, WI
Posts: 1,217
use lots of jungle jake degreaser and hose it down, brush were its very badly caked on. if it doesnt start you probably just got moisture under your dist cap. I use a pressure washer on mine but never put the nozzle up close to anything for fear of blowing a gasket out or getting wires wet where they shoudnt be wet.
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Unread 08-09-2010, 05:59 PM   #5
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1996 ZJ 
Join Date: Sep 2009
Location: Kingston, Pa. 18704, Pennsylvania
Posts: 3,469
I've blasted my 2.5L several times at a coin operated car wash and never had any problems.

I blast everything in sight and make no attempt to stay away from the dizzy or anything electrical. Start it right up afterwards and drive it away.
79' CJ7 - 82' CJ8 - 94' YJ - 96' ZJ
Diagonally parked in a parallel universe.......
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Unread 08-09-2010, 06:24 PM   #6
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1991 YJ Wrangler 
Join Date: Jul 2010
Location: phoenix
Posts: 26
same here, i wash all my engines with the pressure washer, im not to shy around anything but the alternator...
i use foam cleaner.. works great every time. i drive the vehicle for a few minute so its a lil warm(get the grease soft) then foam it, proceed to the power wash. let dry for a few and drive away
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Unread 08-09-2010, 06:30 PM   #7
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2006 LJ Wrangler 
Join Date: May 2009
Location: Christiansburg, VA - Virginia
Posts: 67
Mean Green and a nozzled hose work well for dirty engines. I generally use foaming engine cleaner for mine when it gets filthy. They say to be careful around certain things and I never listened until my tach line coming from the distributor became corroded and the tach ceased to work. Just make sure you let the engine get hot to dry it off soon after.
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