Coolant hoses

Topic: Coolant hoses (Read 1325 times) previous topic - next topic

Coolant hoses

April 04, 2018, 02:10:04 pm

Am I correct in assuming the round apparatus on passenger side of engine under the radiator is the transmission oil cooler
It has a straight hose on tail end ( closest to rear of coach) and a 90 on front end the small ends of hose are 2-1/2"and I think the large end is 3" but not certain can anyone verify these sizes
Also gates hose numbers would be great
I have found hoses on gates website that I think will work but it would be nice if someone could verify their identity

Re: Coolant hoses

Reply #1 – April 04, 2018, 02:26:35 pm

Will look up the part numbers,replace those hose clamps when you do the hoses.

Re: Coolant hoses

Reply #2 – April 04, 2018, 02:38:11 pm

Quote from: John44 – April 04, 2018, 02:26:35 pm

Will look up the part numbers,replace those hose clamps when you do the hoses.

Thanks John

Re: Coolant hoses

Reply #3 – April 04, 2018, 11:46:38 pm

Hoses
Gates 23562 upper radiator hose end
Lower radiator hose gates23562
Engine end water pump gates 23562
Radiator end gates 23562
Bypass hose 1" gates 4230-0150
These are what is called for on my 2003 U320

Re: Coolant hoses

Reply #4 – April 05, 2018, 12:42:53 pm

To answer the first question, that is the transmission cooler. Ours looked like that and we replaced it last year. We also replaced the hoses to the transmission. We used a local company which used the Eaton brand and cut them to size. The attached photos show what the cooler looks like on the inside. If you don't replace yours ($1500-2200) I would recommend treating the rust. Wayne at Old Town Motorhome swore by the Permatex Rust Treatment, which is supposed to arrest the progress of the rust.

If you decide to go with a new cooler, go directly to the manufacturer; you will save a lot of money.

Re: Coolant hoses

Reply #5 – April 05, 2018, 12:50:34 pm

I would recommend stronger hose clamps!

Re: Coolant hoses

Reply #6 – April 05, 2018, 08:44:34 pm

Quote from: Sven and Kristi – April 05, 2018, 12:42:53 pm

To answer the first question, that is the transmission cooler. Ours looked like that and we replaced it last year. We also replaced the hoses to the transmission. We used a local company which used the Eaton brand and cut them to size. The attached photos show what the cooler looks like on the inside. If you don't replace yours ($1500-2200) I would recommend treating the rust. Wayne at Old Town Motorhome swore by the Permatex Rust Treatment, which is supposed to arrest the progress of the rust.

If you decide to go with a new cooler, go directly to the manufacturer; you will save a lot of money.

Sven do you have a Rocor part number?
Thanks
Chris

Re: Coolant hoses

Reply #7 – April 05, 2018, 08:48:44 pm

Quote from: pressuresolutions – April 04, 2018, 11:46:38 pm

Hoses
Gates 23562 upper radiator hose end
Lower radiator hose gates23562
Engine end water pump gates 23562
Radiator end gates 23562
Bypass hose 1" gates 4230-0150
These are what is called for on my 2003 U320

Mark, that is for the 2-1/2 " hose if I'm not mistaken --I also have 2-1/4" hose then the 2 that are 2-1/2 to 3 inches
Thanks for the part numbers that confirmed what I had on part of the system
Chris

Re: Coolant hoses

Reply #8 – April 05, 2018, 08:53:58 pm

To carry this a little further has anyone replaces a radiator on a 1999 320? Currently ours is working but it looks kinda rough, as if a fan blade came loose and took out some of the cooling fins, Just trying to get an idea of size, cost and where is best place to get them.
I appreciate the input
Chris

Re: Coolant hoses

Reply #9 – April 06, 2018, 12:19:07 am

Reply #9 in the thread. 2000 should be the same as 99

Radiator replacement (photos)

Re: Coolant hoses

Reply #10 – April 06, 2018, 10:46:00 am

Quote from: Chris m lang – April 05, 2018, 08:44:34 pm

Sven do you have a Rocor part number?
Thanks
Chris

Re: Coolant hoses

Reply #11 – April 06, 2018, 03:04:48 pm

Quote from: Sven and Kristi – April 06, 2018, 10:46:00 am

Thanks Sven

Re: Coolant hoses

Reply #12 – April 06, 2018, 04:23:44 pm

Quote from: Chris m lang – April 05, 2018, 08:53:58 pm

To carry this a little further has anyone replaces a radiator on a 1999 320? Currently ours is working but it looks kinda rough, as if a fan blade came loose and took out some of the cooling fins, Just trying to get an idea of size, cost and where is best place to get them.
I appreciate the input
Chris

From reading past posts dating back several years it seems the demise of the radiator is inevitable, when we are driving coaches that are 20 years old we are due for this service.
From what I have read, hold on to your wallet when the time comes. I always hoped that one of the shops in Texas would offer this as a package, Radiator, cooling fans rebuild, at a reduced price.

I remember reading a post years ago on the forum were somebody had this work done in Mexico at a GREAT price, I have never been able to find that post again. I would love to drive down to Mexico BEFORE I have a problem and have the radiator and hydraulic fans serviced.

Re: Coolant hoses

Reply #13 – April 06, 2018, 06:42:00 pm

You can get a new one in TX. I think it was about $2500 plus shipping. A few have done the out and in themselves. Not me.

Re: Coolant hoses

Reply #14 – April 06, 2018, 07:07:16 pm

Lon, that was my posting on the replacement in Mexico. It was done in Mazatlan while they were parked in one of the RV parks for the winter.
We where passing thru on the way south at the time and I drove to this park as we knew members use it in the winter. I was surprised to find one of them missing his rad' and asked about it. The mexican mechanics had removed the panel and surrounding parts and within a week I heard (after we left) that a total rebuild at a truck Rad shop and replacing the bill was just under $500 US. I believe this member (Vancouver Island) has passed away so no way to get info on shop etc. There are lots of big truck places there and many many jobs done on RVs. Maybe search Rad shops in mazatlan to get an idea. I am sure other places closer to the Border would be able to do it but only know about this one instance.
JohnH

Re: Coolant hoses

Reply #15 – April 06, 2018, 08:29:45 pm

In my case the coach came with a custom built radiator because at some point around 2010 the Atlas radiators were unavailable. I'd like to tell you exactly what rubber parts I got to replace all those bits but I don't remember. Some of them I pulled off and had a match done at the local truck shop but most of them I matched the part numbers from beamalarm and they proved to be correct. The rubber parts are probably a lot more important to replace than the silicone couplers (that we have anyway) on the radiator itself.

Anyway our radiator has an engineering flaw that causes the weld on the bracket to break on the front side. Happened once and after we had it repaired at the original manufacturer (for free 6 years later!) the weld cracked again. I've since repaired it by a gnarly contraption of threaded rod and angle iron and it's held up nicely while I ponder the right way to do it.

In my case, I found removing the radiator out the rear to be the best way to do it so as to not break the full body paint on the trim strips. I would however remove the louvers as you can just rivet those back in.

Big job... And actually I still need to reinstall some baffling between the fiberglass and the radiator as well as between the shrouds and the radiator. The whole system could be a lot more efficient than it is which is why I eventually overheat on grades I'm sure. The quality of the radiator can't be to blame as this style has some of the best thermal transfer available... bar plate style I think it's called.

Re: Coolant hoses

Reply #16 – April 07, 2018, 02:09:48 am

Quote from: John Haygarth – April 06, 2018, 07:07:16 pm

Lon, that was my posting on the replacement in Mexico. It was done in Mazatlan while they were parked in one of the RV parks for the winter.
We where passing thru on the way south at the time and I drove to this park as we knew members use it in the winter. I was surprised to find one of them missing his rad' and asked about it. The mexican mechanics had removed the panel and surrounding parts and within a week I heard (after we left) that a total rebuild at a truck Rad shop and replacing the bill was just under $500 US. I believe this member (Vancouver Island) has passed away so no way to get info on shop etc. There are lots of big truck places there and many many jobs done on RVs. Maybe search Rad shops in mazatlan to get an idea. I am sure other places closer to the Border would be able to do it but only know about this one instance.
JohnH

Thanks John.
That does sound like the thread I remember reading. Wish I could find the name of the shop or that thread with the details.

Re: Coolant hoses

Reply #17 – April 07, 2018, 10:29:34 am

Mark, I did a change out of the radiator and CAC on my '00 coach last year, but don't recognize the one you have in the photo (next to engine) and it doesn't seem to resemble the one you (?) are standing next to. I'm looking at the upper attachment point.
To be clear, Atlas is still in business.

Re: Coolant hoses

Reply #18 – April 07, 2018, 11:25:45 am

My thought on the Mexican radiator repairs,if they rebuild it and use new gaskets and clean it you get a bargain,if they have to
install a new radiator or get a new core they may be getting the parts from the USA and you won't be saving that much.
I suggest anyone pricing a cooler or radiator from Atlas try pricing from Huffman radiator in Sinton TX,last time I checked they
were cheaper.

Re: Coolant hoses

Reply #19 – April 07, 2018, 09:51:54 pm

Quote from: Sven and Kristi – April 07, 2018, 10:29:34 am

Mark, I did a change out of the radiator and CAC on my '00 coach last year, but don't recognize the one you have in the photo (next to engine) and it doesn't seem to resemble the one you (?) are standing next to. I'm looking at the upper attachment point.
To be clear, Atlas is still in business.

Yep my particular radiator was custom built by a local shop in 2010 by the previous owner. At THAT time the Atlas radiators were not available. Because this is a superior radiator in general though I am nursing it along even though the brackets could be done better.

Re: Coolant hoses

Reply #20 – April 08, 2018, 11:22:36 am

How does it compare to the Atlas radiator? I'm sure any product could be made better, but I'm curious about the qualitative difference.

Re: Coolant hoses

Reply #21 – April 08, 2018, 11:44:19 am

Looks like his is all aluminum,me thinks the key to radiator longevity is keeping up with the coolant,change it sooner rather then
later.Just a reminder,when shopping thru Atlas,they will ask for the serial number,usually on a metal tag.

Re: Coolant hoses

Reply #22 – April 08, 2018, 12:07:14 pm

In my case, they asked for the FT build number - much easier than finding a serial # somewhere on the radiator. They may also ask for some time to build it, as they did in my case.

Re: Coolant hoses

Reply #23 – April 08, 2018, 05:06:24 pm

Quote from: Sven and Kristi – April 08, 2018, 12:07:14 pm

In my case, they asked for the FT build number - much easier than finding a serial # somewhere on the radiator. They may also ask for some time to build it, as they did in my case.

I just heard back from Atlas, about 8 weeks.

Re: Coolant hoses

Reply #24 – April 08, 2018, 08:23:12 pm

Quote from: Sven and Kristi – April 08, 2018, 11:22:36 am

How does it compare to the Atlas radiator? I'm sure any product could be made better, but I'm curious about the qualitative difference.

Bar and plate is supposed to offer the best thermal transfer. Otherwise the end tanks are aluminum and it should hold up better in the long term. I believe the PO paid $3700 for this radiator in 2010 dollars. In the end it doesn't matter, I'm still running a big 11 liter engine and it still slowly heats up in the western mountains. If faced with a choice I would 100% go for the atlas, since mine has its own headaches (persistent broken welds between the radiator and mounting plate)

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