Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 04-03-2015, 09:50 PM   #1
Senior Member
 
Join Date: Jun 2013
Posts: 403
Radiator fireworks

hello all, I would love to hear from y'all about the pro/con of rear/side radiators. The Freightliner website says the maxum can be ordered with rear or side radiators - and Winnebago chose rear. One class A maker that sells side radiators says that rear radiators are prone to road debris damage. One class A maker that sells rear radiators says that side radiators are prone to road debris damage. And the conversations usually follow with more rhetoric. Is there anything you can tell us that is not anecdotal about the pros/cons of side vs rear radiators?

Thank you, Nancy and Phil

(yes, we surmise this might be a dead horse that is covered in previous forums. Just point us there if you prefer.)
__________________

__________________
peterson is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-03-2015, 11:23 PM   #2
Senior Member
 
FIRE UP's Avatar


 
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 5,277
Quote:
Originally Posted by peterson View Post
hello all, I would love to hear from y'all about the pro/con of rear/side radiators. The Freightliner website says the maxum can be ordered with rear or side radiators - and Winnebago chose rear. One class A maker that sells side radiators says that rear radiators are prone to road debris damage. One class A maker that sells rear radiators says that side radiators are prone to road debris damage. And the conversations usually follow with more rhetoric. Is there anything you can tell us that is not anecdotal about the pros/cons of side vs rear radiators?

Thank you, Nancy and Phil

(yes, we surmise this might be a dead horse that is covered in previous forums. Just point us there if you prefer.)
Well Sir,
ANYTHING on the road, "Is prone to road damage" but, does that mean it's going to receive any? Nope, not normally. Of the zillion posts here on IRV2 and, other RV forums posted by diesel pilots, I'm pretty sure I've not read anything about any real damage being done to a rear radiator from road debris. Can it happen, sure it can. Does it happen, out of the many, many rear radiator rigs out there, it's pretty darn rare.

One of the real, main advantages of a side radiator vs a rear one is, the ability to have access to the engine, if and when, any maintenance and or, repairs need to be done. Many would give their "I-teeth" to have easy access to engine components that have a rear radiator. Me being one. But, there are so many other parameters that need to be fulfilled when in search of new coach that, whether it's a side or rear radiator kind-a falls down the priority list for many.


But, to answer your question, if, you find a floor plan, body, layout etc. that tickles your fancy and all other parameters have been filled, AND it's got a side radiator, to me, that would be a major bonus. But, not anywhere near a deal breaker if it didn't have one but, everything else was perfect.
Scott
__________________

__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '08 GL 1800 Gold Wing
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Sophie character, (mini Schnauzer)
FIRE UP is offline   Reply With Quote
Old 04-03-2015, 11:54 PM   #3
Senior Member
 
Gary CA's Avatar
 
Join Date: Aug 2004
Location: Simi Valley, California
Posts: 576
Well said about radiators. My Freightliner has run strong for 11 years now. That said the rear radiator and air-charge unit is like a vacuum. Research on this great forum about overheating. I followed one members advice and cut a access panel in the fan shroud. Now every spring I take the engine cover off and clean between the two radiators and remove trash, plastic bags, leaves and hay from that truck I had to follow. My engine temp is steady and cool now.
High maintenance is what these DP are. Pick one you like and wear it out.
Enjoy the adventures.


Sent from my iPhone using iRV2 - RV Forum
__________________
Gary CA
2016 Fleetwood Southwind 34A
2011 Toyota Tacoma
2000 Jeep Wrangler 4X4
Gary CA is offline   Reply With Quote
Old 04-04-2015, 01:07 AM   #4
Senior Member
 
2 Stroker's Avatar
 
Join Date: Nov 2009
Location: Warren, Oregon
Posts: 1,719
Everything post above is right on, if you like the floor plan and can live with a rear radiator, go for it. But for me it was a deal breaker
I look at it down the road when a coach gets a few miles on it and you have to start looking at things. My daughter has a rear radiator and all you see is radiator and if you need to change belts and you take it in for service, maybe 3 to 4hrs at $125hr= I changed my serpentine belt in about 2min, took longer to get the tools than to change the belt. I can get to both fuel filters, hyd tank, coolant look at things to see if I have any problems plus I think it runs cleaner, as I said this is just my take of things.
2 stroker
__________________
2006 Country Coach Inspire 360 40ft Genoa Designer Series, Samsung 197 RR
Cat C9--STEEL & COPPER Bolt Together Radiator w/ updated rubber mounting
SilverLeaf 330 Magnum 2812 PSW 2011 Ford Edge Sport-Air Force One
2 Stroker is offline   Reply With Quote
Old 04-04-2015, 08:29 AM   #6
Senior Member
 
Join Date: Jun 2013
Posts: 403
Quote:
Originally Posted by FIRE UP View Post
Well Sir,
Of the zillion posts here on IRV2 I'm pretty sure I've not read anything about any real damage being done to a rear radiator from road debris. Can it happen, sure it can. Does it happen, it's pretty darn rare.

But, there are so many other parameters that need to be fulfilled when in search of new coach that, whether it's a side or rear radiator kind-a falls down the priority list for many.

But, if, you find a floor plan, body, layout etc. that tickles your fancy and all other parameters have been filled, AND it's got a side radiator, to me, that would be a major bonus. But, not anywhere near a deal breaker if it didn't have one but, everything else was perfect.
Scott
[QUOTE=Gary CA;2495610]
High maintenance is what these DP are. Pick one you like and wear it out.
Enjoy the adventures.

These posts by FIRE UP and GARY CA are the most reasonable posts we have ever read on this subject.

FIRE UP said to focus on what really matters - floor plan, body, layout, etc.
GARY CA said to choose one and use the coach and enjoy it.

Both are wonderfully said.

And TURTLE-KENT, thank you VERY much for your efforts to provide the many links to this topic. I've had two cups of coffee and will start reading. And I may wind up following your advice and be switching to adult beverages before it's all done. I will read all those posts with a little less worry thanks to the posts by FIRE UP and GARY CA.
__________________
peterson is offline   Reply With Quote
Old 04-04-2015, 09:08 AM   #7
Registered User
 
mel s's Avatar
 
Join Date: Mar 2010
Posts: 8,777
Quote:
Originally Posted by peterson View Post
hello all, I would love to hear from y'all about the pro/con of rear/side radiators. The Freightliner website says the maxum can be ordered with rear or side radiators - and Winnebago chose rear. One class A maker that sells side radiators says that rear radiators are prone to road debris damage. One class A maker that sells rear radiators says that side radiators are prone to road debris damage. And the conversations usually follow with more rhetoric. Is there anything you can tell us that is not anecdotal about the pros/cons of side vs rear radiators?
Thank you, Nancy and Phil
(yes, we surmise this might be a dead horse that is covered in previous forums. Just point us there if you prefer.)
Nancy and Phil
My coach has a rear radiator, (I have never had one with a side radiator).
That said....IMO a rear radiator is a PITA for a number of reasons.
#1 being the fact that the air passing through the CAC and radiator comes from beneath the coach and has to pass through the engine compartment before it gets to the CAC and radiator.
When the coach is moving that air ALWAYS contains road dust, (and can often contain other debris, as well as oil residue from the engine and/or transmission).
On side radiator coaches much cleaner outside air is drawn IN from the outside of the coach and forced through the radiator/CAC... into the engine compartment.
Second is the fact that side radiators allow better/easier access to the rear end of the engine.
(If I had my druthers... I'd druther have a side radiator coach).
Mel
'96 Safari
__________________
mel s is offline   Reply With Quote
Old 04-04-2015, 10:14 AM   #8
Senior Member/RVM #90
 
MSHappyCampers's Avatar


 
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 26,314
I prefer the side radiator. Leaves the engine clear for routine servicing!
__________________
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
MSHappyCampers is offline   Reply With Quote
Old 04-04-2015, 08:10 PM   #9
Senior Member
 
gacamp's Avatar
 
American Coach Owners Club
Join Date: Feb 2012
Location: Hardee Co. Florida
Posts: 334
I have a side radiator on the Eagle, two friends have rear radiator Dp's, they both envy me. I just yesterday had my alternator replaced, it took less than one one hour because it was so easy to get to plus I have done other repairs/replacements which were very simple because of the access. Side radiators for me.
__________________
1998 American Eagle
gacamp is offline   Reply With Quote
Old 04-04-2015, 08:51 PM   #10
"Formerly Diplomat Don"
 
Dutch Star Don's Avatar
 
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 9,290
I've had both a rear radiator and now a side radiator. A couple of facts that don't change. As the level of the coach (price) goes up, the radiator moves from the back to the side. Second, as the HP increases, the radiator moves from the back to side. So no matter how much this may get argued, it's hard to dispute that a side radiator is the better design and more expensive design.

With that said, the rear radiator coaches have been working well for many years, but need constant upkeep. There are a couple of rear radiator designs and the one Monaco used is the better of the two. On a Monaco coach, they stacked the charge air cooler (CAC) on top of the radiator. This made it much simpler to clean because you can get to both sides of the CAC and radiator.

The Freightliner design and other brands stack their CAC and radiator one in front of the other. As "Gary Ca" stated, it's tough to clean between the two without pulling one of them...I know, because "Gary Ca" is my BIL and I've spent hours helping him clean his, a difficult job.

The side radiator is used when more cooling is needed on larger engines. They're easier to access and so is the engine. They also use a hydraulic pump to turn the fan blade and often draw more engine power for this operation than does a rear radiator with the fan blade attached to the engine like cars of the past.

Soooo.....it's all about what level of coach you intend to buy. Either way, radiator location doesn't have too much impact on floorplan which is one of the most important factors.
__________________
Don & Mary
2014 Newmar Dutch Star - All Electric - 450 ISL
2016 GMC Canyon 4WD Crew Cab
Dutch Star Don is offline   Reply With Quote
Old 04-04-2015, 09:02 PM   #11
Senior Member
 
Join Date: Jun 2013
Posts: 403
Quote:
Originally Posted by Dutch Star Don View Post
I've had both a rear radiator and now a side radiator. A couple of facts that don't change. As the level of the coach (price) goes up, the radiator moves from the back to the side. Second, as the HP increases, the radiator moves from the back to side. So no matter how much this may get argued, it's hard to dispute that a side radiator is the better design and more expensive design.

With that said, the rear radiator coaches have been working well for many years, but need constant upkeep. There are a couple of rear radiator designs and the one Monaco used is the better of the two. On a Monaco coach, they stacked the charge air cooler (CAC) on top of the radiator. This made it much simpler to clean because you can get to both sides of the CAC and radiator.

The Freightliner design and other brands stack their CAC and radiator one in front of the other. As "Gary Ca" stated, it's tough to clean between the two without pulling one of them...I know, because "Gary Ca" is my BIL and I've spent hours helping him clean his, a difficult job.

The side radiator is used when more cooling is needed on larger engines. They're easier to access and so is the engine. They also use a hydraulic pump to turn the fan blade and often draw more engine power for this operation than does a rear radiator with the fan blade attached to the engine like cars of the past.

Soooo.....it's all about what level of coach you intend to buy. Either way, radiator location doesn't have too much impact on floorplan which is one of the most important factors.
We like the Winnebago Tour 42HD floor plan. The features we like on this coach are probably available on other coaches as well. We are very new to motor coaches (have never owned one but want to) so are not familiar with brands other than those sold locally.

What other brands have rear radiators, 450 hp minimum, are 42 to 45 feet, and between $400K and $600K?
__________________
peterson is offline   Reply With Quote
Old 04-04-2015, 09:29 PM   #12
Senior Member
 
Monaco Owners Club
Join Date: May 2009
Location: Melbourne, Florida
Posts: 128
It’s also important what’s in the radiator. I doesn’t just cool it protects the engine from cavitation.
__________________
2000 34' York Dynasty
2013 Jeep Wrangler Unlimited
passerby is offline   Reply With Quote
Old 04-04-2015, 09:30 PM   #13
Senior Member
 
vsheetz's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 11,791
The side radiator is easier and cheaper for maintenance, yes. Albeit usually included on a more expensive coach. One should consider the added capital expenditure for a rear radiator coach vs. the savings in service expenditures.
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
vsheetz is offline   Reply With Quote
Old 04-04-2015, 09:38 PM   #14
Senior Member
 
gemini5362's Avatar
 
Tiffin Owners Club
Freightliner Owners Club
Join Date: Apr 2012
Posts: 2,078
Quote:
Originally Posted by Dutch Star Don View Post
I've had both a rear radiator and now a side radiator. A couple of facts that don't change. As the level of the coach (price) goes up, the radiator moves from the back to the side. Second, as the HP increases, the radiator moves from the back to side. So no matter how much this may get argued, it's hard to dispute that a side radiator is the better design and more expensive design.

With that said, the rear radiator coaches have been working well for many years, but need constant upkeep. There are a couple of rear radiator designs and the one Monaco used is the better of the two. On a Monaco coach, they stacked the charge air cooler (CAC) on top of the radiator. This made it much simpler to clean because you can get to both sides of the CAC and radiator.

The Freightliner design and other brands stack their CAC and radiator one in front of the other. As "Gary Ca" stated, it's tough to clean between the two without pulling one of them...I know, because "Gary Ca" is my BIL and I've spent hours helping him clean his, a difficult job.

The side radiator is used when more cooling is needed on larger engines. They're easier to access and so is the engine. They also use a hydraulic pump to turn the fan blade and often draw more engine power for this operation than does a rear radiator with the fan blade attached to the engine like cars of the past.

Soooo.....it's all about what level of coach you intend to buy. Either way, radiator location doesn't have too much impact on floorplan which is one of the most important factors.

Tiffin quit using the hydraulic fan years ago. Now they have a drive train that goes to the fan on side mount radiators.
__________________

__________________
gemini5362 is offline   Reply With Quote
Reply

Tags
radiator



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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:49 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.