Should I be concerned? Radiator

Topic: Should I be concerned? Radiator (Read 2266 times) previous topic - next topic

Re: Should I be concerned? Radiator

Reply #25 – November 04, 2024, 07:36:14 am

Just as a follow up finally got the new radiator about a month ago. Plan on doing the replacement after the coach has been winterized. It is a beast of a radiator for sure.

Re: Should I be concerned? Radiator

Reply #26 – November 05, 2024, 08:58:02 am

IF you don't mind sharing, what did that end up costing?

Re: Should I be concerned? Radiator

Reply #27 – November 05, 2024, 11:45:15 am

Quote from: Dave Larsen – November 05, 2024, 08:58:02 am

IF you don't mind sharing, what did that end up costing?

$5400 shipped and about a year wait.

Re: Should I be concerned? Radiator

Reply #28 – November 05, 2024, 12:13:03 pm

Is that for just the rad or the rad and CAC? I paid $4500 shipped for just a rad from FT back in '22.

Re: Should I be concerned? Radiator

Reply #29 – November 05, 2024, 02:08:51 pm

Quote from: WS6_Keith – November 05, 2024, 12:13:03 pm

Is that for just the rad or the rad and CAC? I paid $4500 shipped for just a rad from FT back in '22.

Just as you see it. The complete package. I think he quoted me just the radiator at about 4K without shipping. So about the same price as you paid with shipping.

Re: Should I be concerned? Radiator

Reply #30 – November 05, 2024, 02:20:27 pm

Good price I'd say. $1400ish for the CAC seems cheap.

Re: Should I be concerned? Radiator

Reply #31 – November 06, 2024, 09:21:28 pm

I would much prefer to do myself at home rather than paying someone to change a 1000 miles away from home.

Re: Should I be concerned? Radiator

Reply #32 – November 10, 2024, 08:56:05 am

Radiator is out!! No big road blocks. I plan to get a few things done.

Hopefully rebuilding fans if I can find the rebuilt kits. Going to call Berendsen Fluid Power (800) 722-4975 for the seal kit 221.20.034.0K. I do not see this available anywhere online so I hope they have it. If anyone has sourced this part lately let me know where.

Also want to use the idea to support the Trans cooler by the frame using oldguys method.

Clean up everything and paint it with chassis saver or POR15 whichever I have laying around from car projects.
Replace hoses and clamps.

Welcome any other suggestions as well.
Forum has been a giant wealth of information for this project. Thank you all

Re: Should I be concerned? Radiator

Reply #33 – November 10, 2024, 01:53:10 pm

Jeff,

All that number that you have is for the shaft seal, no need to buy a Danfoss seal that the sourced from someone. That seal number is a 20/30/7 mm. The CR # is 7905 There is a couple of post as to how to DIY the seal.

Mike

Re: Should I be concerned? Radiator

Reply #34 – November 10, 2024, 02:46:41 pm

Quote from: Pamela & Mike – November 10, 2024, 01:53:10 pm

Jeff,

All that number that you have is for the shaft seal, no need to buy a Danfoss seal that the sourced from someone. That seal number is a 20/30/7 mm. The CR # is 7905 There is a couple of post as to how to DIY the seal.

Mike

My understanding is that P/N is a complete kit of all the seals and O rings. Like this one on eBay which I hope is way over priced.
DANFOSS 221.20.034.0K /#X K00S 8289 | eBay
Maybe all I have to do is replace the shaft seal??

Re: Should I be concerned? Radiator

Reply #35 – November 10, 2024, 03:42:31 pm

All you need is the shaft seal which is common seal which Mike gave you the size.

Re: Should I be concerned? Radiator

Reply #36 – November 10, 2024, 05:18:37 pm

Quote from: RvingJeff – November 10, 2024, 02:46:41 pm

My understanding is that P/N is a complete kit of all the seals and O rings. Like this one on eBay which I hope is way over priced.
DANFOSS 221.20.034.0K /#X K00S 8289 | eBay
Maybe all I have to do is replace the shaft seal??

I bought one of the seal kits to get the size of the seal back before the size was known. Members before me had been replacing the motors. I then used just the seal only for the second motor.

Re: Should I be concerned? Radiator

Reply #37 – November 27, 2024, 03:38:41 pm

Working on it as time permits. All the holes for the brackets were not in the new radiator. Drilled and tapped all the holes and test fit everything. Got the support brackets for the fans in place then Loctite all the bolts then painted everything with Por-15.
Next steps will be to finish the frame mounts for the trans cooler before I move on to installing the radiator.

Re: Should I be concerned? Radiator

Reply #38 – December 08, 2024, 05:56:38 pm

Made major progress today. All the major parts are in. Have to finish plumbing and then it will be ready for testing. After all this back breaking work it may be a little while before I am motivated again. lol

Re: Should I be concerned? Radiator

Reply #39 – December 28, 2024, 04:07:17 pm

Finished up today and got it running. Everything was good with the radiator. Saw a drip when I got back from test drive by the trans cooler. Seems like no good luck, it looks like it is a pin hole by where the hose connects. Sheesh I thought I had this done. I think I am going to start another thread on what options I have to fix the next big thing on the list. Discouraging for sure. I think I will wait a while before I can even look at it.

Re: Should I be concerned? Radiator

Reply #40 – December 29, 2024, 09:45:18 am

Seeing that depressed me and its not my coach, I'd still be laying on the ground muttering. Of course it has to be at one of the low points of the system, ensuring you would have to drain the entire system to do a full repair.

Curious when you changed everything out, did you also do a Restore flush? Just asking in case there was some Bars Leaks that had masked the problem that got flushed out.

I assume its the same cooler that we have, Rocore 3-1279B which has the BTU rating Allison wants for the "R" retarder series of the 4000. It would have been nice if it was the 5 series (5-7027B) which has the replaceable end caps (bonnets) as you could get those caps fairly cheap.

I've attached a Rocore catalog and BTU data for you, keep a watch on Ebay should you decide to replace the unit. Also a good read Rocore Floating Bundle Trans Cooler On the Cheap

Re: Should I be concerned? Radiator

Reply #41 – May 26, 2025, 07:06:38 pm

Finally had time to get everything back together. I added some chicken wire to the back of the vents for the radiator to help keep debris out. Made sure I had a good seal around it and put all the panels back on. Now on to the next project which is mostly maintenance items.

Re: Should I be concerned? Radiator

Reply #42 – May 26, 2025, 08:49:05 pm

Jeff,

Next time you have that louvered cover off you might think about using 1/4" hardware cloth rather that chicken wire. You will achieve what you are trying to do better. I just can't help it, you will have verry few chickens get sucked up in there.

Mike

Re: Should I be concerned? Radiator

Reply #43 – May 26, 2025, 09:40:02 pm

Agree on hardware cloth wire tied to inside of louvers.
Drill out rivets holding louver, replace with removable fasteners.
Driving next to loose grass, etc., cooling fans can act like a vacuum cleaner depositing trash between cooler and radiator.
Everyone should make this preventative modification.

Re: Should I be concerned? Radiator

Reply #44 – May 27, 2025, 07:56:42 am

Quote from: Pamela & Mike – May 26, 2025, 08:49:05 pm

Jeff,

Next time you have that louvered cover off you might think about using 1/4" hardware cloth rather that chicken wire. You will achieve what you are trying to do better. I just can't help it, you will have verry few chickens get sucked up in there.

Mike

LOL. Never know when you will run into a flock of chickens.
It is what I had laying around. I just wanted to avoid larger debris getting in there. When I removed it was loaded with larger items like leaves and paper. Anything that can get through the chicken wire can easily be washed out. I figured anything is an improvement while I had it apart.

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