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Old 11-30-2021, 12:48 PM   #1
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Cleaning radiator

2002 KSDP. Access under the bed is very limited and crawling underneath I don't even see the intercooler. I could spray a cleaner some from under the bed but coverage percent of radiator would be low.

Of course, I can easily spray the read side of radiator, but does that do any good?

Thanks for your advice. Ron
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Old 11-30-2021, 12:57 PM   #2
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Originally Posted by rrodda1 View Post
2002 KSDP.

Of course, I can easily spray the read side of radiator, but does that do any good?

Answer is NOT MUCH.

Most if the dirt and debris is "filtered out" on the front of the CAC. If you used enough water pressure to go through the radiator, the air gap and then the CAC with enough force to blow stuff off the front of the CAC, you would likely bend radiator fins.

I know access from the front/top is limited, but that is where you need to clean.

Best degreaser that will not harm aluminum is Simple Green EXTREME. Speced for degreasing aluminum aircraft.

That and a regular hose with garden nozzle and a pair of old clothes is what you need for the job. And desire to stand on your head while doing it is desirable.
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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Old 11-30-2021, 01:07 PM   #3
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Thanks for the answer. I ran across some of your posts on this topic from years ago on some forum. Given my age and bad knees, the tight quarters makes things very difficult.
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Old 11-30-2021, 03:07 PM   #4
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You should extend your slobber tube, if you have not already done so. That will reduce the amount of gunk blown into your CAC.

I purchased a 9 year old coach that did not have the slobber tube extended. I extended the tube and used Simple Green Extreme and cleaner from the front of the CAC the way you should. However, the engine ran hotter and hotter. I had the radiator replaced and the junk between the CAC and the radiator was astounding. I could have washed with Simple Green Extreme for years and not gotten it out. I assume that the junk got in there before the tube was extended and hardened in there. The CAC got a good cleaning and the engine is running cool now.
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