Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-18-2007, 12:17 PM   #1
Winnie-Wise
 
SteveG's Avatar
 
Join Date: Sep 2006
Location: Florida
Posts: 256
After reading a number of posts regarding the rear mounted radiator getting plugged with by-pass oil and road grime, I thought it might be prudent to do a radiator cleaning on our 2004 Journey 36G powered by a Cat C7. The readings made it seem like a pretty straight forward but messy job. I then crept under the motor home to plan the job... Holy mackerel! Where's the engine radiator? All I saw was engine and cowling.

I wedged the drop light toward the fan cowling/radiator as far as I could get it and noticed that on the passenger side on the engine I could just see, through the fan blades, the engine radiator. On the driver side of the engine it was just barely visible. So I am thinking before I start this project I should ask, what is the best access and cleaning procedure? I guess I just saw it?

It has been suggested to purchase a sacrificial garden pump sprayer with a plastic wand so the wand can be flexed to reach further. Fill up the tank with something like Simple Green, pump up some spraying pressure and then work the wand up through those small passenger and driver side openings squeezing the wand between the frame, engine, wiring cables, hoses, fan shroud, fan blades and squirt the juice into the engine radiator the best I can. It doesn't look like to me that I will reach the entire engine radiator but maybe the spraying will cover more then I think?

Then do the same thing to the "charge air cooler" (CAC) from the back (standing at the back of the MH and looking into the engine compartment)

Do I dilute the Simple Green or use it straight from the bottle?

Then after waiting about twenty minutes, the wash down is done with a garden hose at low pressure spraying into what looks like the radiator but which is actually the "charge air cooler assembly (CAC)?" Water will penetrate the CAC enough to wash out the engine radiator that is mounted behind the CAC?

So am I on the right track?
__________________
SteveG

'10 Phaeton 36 QSH-
SteveG is offline   Reply With Quote
Old 09-18-2007, 12:17 PM   #2
Winnie-Wise
 
SteveG's Avatar
 
Join Date: Sep 2006
Location: Florida
Posts: 256
After reading a number of posts regarding the rear mounted radiator getting plugged with by-pass oil and road grime, I thought it might be prudent to do a radiator cleaning on our 2004 Journey 36G powered by a Cat C7. The readings made it seem like a pretty straight forward but messy job. I then crept under the motor home to plan the job... Holy mackerel! Where's the engine radiator? All I saw was engine and cowling.

I wedged the drop light toward the fan cowling/radiator as far as I could get it and noticed that on the passenger side on the engine I could just see, through the fan blades, the engine radiator. On the driver side of the engine it was just barely visible. So I am thinking before I start this project I should ask, what is the best access and cleaning procedure? I guess I just saw it?

It has been suggested to purchase a sacrificial garden pump sprayer with a plastic wand so the wand can be flexed to reach further. Fill up the tank with something like Simple Green, pump up some spraying pressure and then work the wand up through those small passenger and driver side openings squeezing the wand between the frame, engine, wiring cables, hoses, fan shroud, fan blades and squirt the juice into the engine radiator the best I can. It doesn't look like to me that I will reach the entire engine radiator but maybe the spraying will cover more then I think?

Then do the same thing to the "charge air cooler" (CAC) from the back (standing at the back of the MH and looking into the engine compartment)

Do I dilute the Simple Green or use it straight from the bottle?

Then after waiting about twenty minutes, the wash down is done with a garden hose at low pressure spraying into what looks like the radiator but which is actually the "charge air cooler assembly (CAC)?" Water will penetrate the CAC enough to wash out the engine radiator that is mounted behind the CAC?

So am I on the right track?
__________________
SteveG

'10 Phaeton 36 QSH-
SteveG is offline   Reply With Quote
Old 09-18-2007, 02:49 PM   #3
Winnebago Master
 
Join Date: Sep 2005
Posts: 962
SteveG

What you have described is my second step ... my first step is to take my air hose and blow as much dust from the CAC as I can before I get it wet.

I have a large piece of plastic sheeting that I lay on my driveway to make the sliding underneath easier ... I fill my garden spayer with a diluted solution of Simple Green and spray every part of the radiator that I can see with the engine off ... then I start the engine and crawl back under again ... and making sure that I stay a long ways from the fan I spray more solution into the fan cage figuring that it will spread the Simple Green solution around ...

Shut off the engine and spray the CAC ...

let it set for 20 minutes ...

Spray with a garden hose ...

I also clean the air condition condenser coils on the side using Simple Green ... I spray those from the inside and outside ...
skigramp is offline   Reply With Quote
Old 09-18-2007, 03:28 PM   #4
Winnebago Owner
 
Join Date: Oct 2003
Posts: 211
Confused a little..if you are standing at the rear of the motorhome, I thought you are looking at the radiator and not the CAC....I thought thr CAC was what you see from the engine side....Am I wrong? thanks RKL
RKL2 is offline   Reply With Quote
Old 09-18-2007, 03:30 PM   #5
Winnebago Master
 
Pusherman's Avatar
 
Join Date: Oct 2006
Location: Rochester NY
Posts: 813
You'll get lots of opinions on how to clean your rear radiator and charge air cooler. Many will agree on some aspects: DO NOT use a pressure washer to clean the radiator, as it may damage the fins.

I also use simple green. I spray it on, full strength, onto a hot radiator, from the rear side first, and then from the engine side (with all the challenges you have listed in your post).

Let it work for 10-15 minutes, enjoy an adult beverage, and then flush from the rear to the engine side. Repeat until what is washed off the radiator is clean.

I have a portion of my driveway (to my barn where the MH lives) which is gravel, so I do this cleaning here. Otherwise, you will make quite a mess on your driveway.

P.S. RKL -- you are correct.
__________________
Don
'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank, Safe-T-Plus
'07 HHR Toad, SMI AFO, Blue OX
[SIGPIC][/SIGPIC]
Pusherman is offline   Reply With Quote
Old 09-18-2007, 03:40 PM   #6
Winnie-Wise
 
Join Date: Oct 2005
Location: Oh.
Posts: 317
One thing that I do is cover the engine with plastic, including the alternator, starter, compressor and electrical connections. While I realize they are suppose to be water proof, I personally do not want Simple Green getting into those components when spraying water from the outside in. Just my two cents worth. Have fun, it is a dirty job.
fun time is offline   Reply With Quote
Old 09-18-2007, 03:41 PM   #7
Winnebago Master
 
smlranger's Avatar
 
Join Date: Sep 2004
Location: Glen Allen, VA
Posts: 2,170
The first time I did mine (bought my rig used so not sure it was ever done by previous owner), I also used full strength Simple Green in garden sprayer. I soaked the CAC from outside in but I also removed both engine covers under the bed and there is much improved access to the fan side (radiator). I was able to spray well inside the fan shroud. Since the motor was also grimey, I used some spray Gunk on the motor. Without the DW knowing, I pulled the garden hose through the bedroom window and sprayed everything well. I used covers on the carpet and, actually, did not have any mess inside the rig. I finished by spraying from the outside in.
__________________
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
Glen Allen, VA; Smith Mountain Lake, VA.
smlranger is offline   Reply With Quote
Old 09-18-2007, 04:02 PM   #8
Winnie-Wise
 
SteveG's Avatar
 
Join Date: Sep 2006
Location: Florida
Posts: 256
Thanks for the replies.

The CAC is mounted on the engine side of the radiator? I initially went to FreightLiner Access and it shows the CAC but at a second look it really does not provide orientation. Tomorrow I'll check the hose lines and that should show me what is connected to what. Not in the end that it will make any difference which is which as all needs to be cleaned but at least then it will sound like I have a clue.

I took off both engine covers and concluded it would not provide significant access. But I think I'll take another look.
__________________
SteveG

'10 Phaeton 36 QSH-
SteveG is offline   Reply With Quote
Old 09-18-2007, 05:28 PM   #9
Winnebago Master
 
Pusherman's Avatar
 
Join Date: Oct 2006
Location: Rochester NY
Posts: 813
Steve, yes, the CAC is on the engine side of the radiator.
__________________
Don
'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank, Safe-T-Plus
'07 HHR Toad, SMI AFO, Blue OX
[SIGPIC][/SIGPIC]
Pusherman is offline   Reply With Quote
Old 09-19-2007, 07:34 AM   #10
Winnebago Master
 
smlranger's Avatar
 
Join Date: Sep 2004
Location: Glen Allen, VA
Posts: 2,170
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">I took off both engine covers and concluded it would not provide significant access. But I think I'll take another look. </div></BLOCKQUOTE>

On a rear rad coach, there is no good access from the engine side. I just thought there was better access to the area inside the fan shroud from above the engine. You can at least shine a light into the rad and see how much gunk you have to deal with.
__________________
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
Glen Allen, VA; Smith Mountain Lake, VA.
smlranger is offline   Reply With Quote
Old 09-19-2007, 01:41 PM   #11
Winnebago Owner
 
THutch's Avatar
 
Join Date: Jun 2006
Location: Jacksonville FL
Posts: 114
How often are you guys doing this? I just passed 23,000 miles on my 2005 and haven't thought about this. Am I due? I did hang a jug under the slober tube to catch the excess. I've emptied it once with about a half a quart in it. Probably need to look at it again, since Ive had the 22K service...
__________________
Tom & Norma - NEW: 2011 Tiffin Allegro Bus 43QRP
OLD: 2005 Itasca Meridian 34H
Toad: 2007 HHR, 4-Down, Blue OX & Patriot Brake
THutch is offline   Reply With Quote
Old 09-19-2007, 02:35 PM   #12
Winnie-Wise
 
SteveG's Avatar
 
Join Date: Sep 2006
Location: Florida
Posts: 256
I purchased the materials to do the radiator cleaning today. So looks like I ˜am running out of excuses. The little that I can see of it, the CAC looks filthy with dirt and not oil deposits. So that's a good thing.

I stuck my head under the radiator and confirmed for myself that the CAC is on the engine side of the radiator. It is always helpful to have the forum's assistance. Thanks.
__________________
SteveG

'10 Phaeton 36 QSH-
SteveG is offline   Reply With Quote
Old 09-19-2007, 05:08 PM   #13
Winnebago Master
 
Pusherman's Avatar
 
Join Date: Oct 2006
Location: Rochester NY
Posts: 813
Relative to the frequency of cleaning the radiator, the answer is --depends.....

On older coaches the slobber tube (crankcase ventilation) does not extend below the radiator, and this gunks up the CAC and radiator rapidly. These coaches need their radiator and CAC cleaned annually.

My new coach has the slobber tube extended below the radiator. I am guessing (as I have not done it yet on the new coach) that I can get away with cleaning it every 2-3 years.
__________________
Don
'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank, Safe-T-Plus
'07 HHR Toad, SMI AFO, Blue OX
[SIGPIC][/SIGPIC]
Pusherman is offline   Reply With Quote
Old 09-21-2007, 03:44 AM   #14
Winnebago Owner
 
Join Date: Jun 2005
Posts: 134
This summer I noticed that my engine tempetures were running a little higher than normal and decided to clean the radiator. As most of you, when I climbed underneath the coach, the radiator was completely unaccessible because of the fan shroud. So I went to the quarter car wash and sprayed the radiator from the rear with the engine off using there engine clean solution and then I rinsed it. There was no damage to the fins with the pressure from the car wash and it apparently did a good job.
__________________
http://www.irv2.com/photopost/data/500/kenbtsigpic.jpg

2005 Winnebago Vectra 36RD
kenbt is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cleaning Radiator & CAC Pelledan General Maintenance and Repair 9 05-23-2017 11:40 PM
Cleaning Rear Radiator in a 36RD? cbeierl General Maintenance and Repair 8 10-20-2008 02:49 PM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:01 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.