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Old 05-28-2013, 07:05 PM   #1
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Cleaning the diesel engine and chassis

I try and keep the coach body and interior clean and shiny. I also make sure the required maintenance on the engine and chassis is done as well. I enjoy showing people the coach and I also like showing them the Cat diesel engine that makes this thing run. So I would like to get the engine and engine compartment clean as well. I know the engine gets dirty but what do you do to clean it and keep it looking good.

Thanks
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Old 05-28-2013, 09:46 PM   #2
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I had the annual maintenance done on my C12 at Holt CAT in San Antonio in March. After completing the oil change and other service items they gave the entire engine compartment a power wash. No one had ever offered to do it before, but, at Holt it was part of the PM-1 service.
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Old 05-28-2013, 09:57 PM   #3
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The manual for my Cummins recommends a steam clean every other year or so.
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Old 05-28-2013, 10:34 PM   #4
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I buy six cans of the Original Gunk spray engine cleaner from Walmart and cover the alternator with a plastic bag then spray down everything from the top and the bottom and then hose it off. I don't need a pressure washer or a steam cleaner and my Detroit is spotless. I do not spray the engine cleaner on the fan belts because it can dry them out.
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Old 05-29-2013, 06:38 AM   #5
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Just sprayed my engine with 2 1/2 bottles of "GUNK" degreaser, let it sit for 20-25 minutes and washed it all off with a pressure washer set for fan spray. Make sure to cover generator. Engine compartment looks great. Usually do this twice a year. Doesn't hurt to spray the radiator, air cooler and AC condenser, but don't use pressure washer on them, just a hose.
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Old 05-29-2013, 08:50 AM   #6
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I am also a fan of using Gunk.
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Old 05-29-2013, 12:33 PM   #7
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I mix 50% warm-hot water with 50% degreaser. Put it on with a simple hand bottle sprayer. Gently hose it off. Keeps the cars & coach engines looking like new.
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Old 05-29-2013, 10:58 PM   #8
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If your coach is like mine...the frt wall of the engine bay is full of electrical items....so be sure to cover them....no reason to force water into a solenoid or breaker if not needed
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Old 07-14-2013, 04:17 PM   #9
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Cleaned my 2005 ISL 400 yesterday using heavy duty Gunk. Used less than 1 can and washed off with water in a garden sprayer. No scrubbing. Took 45 minuets including 15 minuet engin run. Simple and easy. I will try to post before and after pictures if I can figure out how to post 2.
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Old 07-14-2013, 04:23 PM   #10
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I can't figure out how to post 2 pictures at one time. This is the before picture.
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Old 07-14-2013, 05:39 PM   #11
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When you guys spray off the gunk, do you do it from the bedroom?

I am worried about the splash spray into the bedroom.
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Old 07-14-2013, 08:23 PM   #12
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I did it from the bedroom but with the garden sprayer with a fan tip there was no splash back into the bedroom. A hose pipe would probably be a problem..
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Old 07-15-2013, 04:33 AM   #13
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Where do you do this? I don't want all that grease and oil on my concrete driveway.
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Old 07-16-2013, 05:08 AM   #14
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Quote:
Originally Posted by fountain42 View Post
Where do you do this? I don't want all that grease and oil on my concrete driveway.
The residue is mostly dirt and water but may stain a concrete driveway I would suspect.
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