Replacing the radiator (update)

Topic: Replacing the radiator (update) (Read 3301 times) previous topic - next topic

Re: Replacing the radiator (update)

Reply #25 – April 27, 2017, 10:07:59 pm

Quote from: Mark Duckworth – April 27, 2017, 10:00:47 pm

Nice job. Look really crisp. Is the black cylinder on the bottom an oil or tranny cooler? Stock or aftermarket?

Mark

It's the tranny cooler, identical to the original from the same manufacturer.
Sven

Re: Replacing the radiator (update)

Reply #26 – April 27, 2017, 11:15:23 pm

Quote from: Old phart phred – April 27, 2017, 09:53:03 pm

So the right fan is always "on" and the left pump is counter-revolutionary and has a built-in bypass and a return to the hydraulic resivouir connection somewhere. Thanks for the schoolings. Just learning. Looked a photos six times to try to figure out the fan pitch from the photos still not sure as appears to be an optical illusion in a flat photo.

I'm curious about how the "bypass" under the left (forward, in relation to rv's orientation) fan works and how it relates to the speed control box located on the rear "bumper" under the coolant reservoir.

Re: Replacing the radiator (update)

Reply #27 – April 28, 2017, 12:14:24 am

Quote from: Sven and Kristi – April 27, 2017, 11:15:23 pm

I'm curious about how the "bypass" under the left (forward, in relation to rv's orientation) fan works and how it relates to the speed control box located on the rear "bumper" under the coolant reservoir.

Me too, my best guess is the speed control of the left fan via the bypass valving, is by a radiator temperature controller, as others and caflashbob has described in several earlier posts. Optimum on/off settings may be open for debate as it effects available hp/fuel consumption. No free lunches.

Re: Replacing the radiator (update)

Reply #28 – April 29, 2017, 01:19:43 am

I moved the radiator out of the garage and into position on the motorcycle lifts (@$90 at Harbor Freight) today. Once in position, I replaced the chain with with a red strap - with the trans. cooler and fans attached, it would tip over without it. I tapped the holes for the smaller coolers and will install them tomorrow before raising it into position. I used a rope come-along attached to the Jeep to pull it sideways a few inches.
We are trying to get this done with enough time to get up to the Motorcade club rally up north next Thursday. Pressure.

Re: Replacing the radiator (update)

Reply #29 – April 29, 2017, 02:03:13 pm

More than professional looking with some backyard engineering to boot.

Hope you get many happy miles out of it.

Re: Replacing the radiator (update)

Reply #30 – April 29, 2017, 02:16:47 pm

Quote from: Sven and Kristi – April 29, 2017, 01:19:43 am

I moved the radiator out of the garage and into position

Well done!

Re: Replacing the radiator (update)

Reply #31 – April 29, 2017, 02:39:13 pm

nicely done and a nice use of the sub compact tractor too.

Re: Replacing the radiator (update)

Reply #32 – April 29, 2017, 02:43:32 pm

Nothing like the satisfaction of doing the job yourself, the pride of ownership

Re: Replacing the radiator (update)

Reply #33 – April 29, 2017, 04:23:35 pm

Quote from: Travelin' Man – April 29, 2017, 02:03:13 pm

More than professional looking with some backyard engineering to boot.

Hope you get many happy miles out of it.

A pro would likely have found something other than an old air dryer to hold up the battery tray - no one seemed to notice. Thanks for the compliment.

Re: Replacing the radiator (update)

Reply #34 – April 29, 2017, 08:22:44 pm

Whew Sven,

Looking at all that work made me tired.

Keep up the good work,

Carter-

Re: Replacing the radiator (update)

Reply #35 – April 30, 2017, 12:38:19 am

Saturday - attached hydraulic cooler, CAC and fuel cooler while the radiator was still in the lowered position. Had some problems with stainless bolts attaching hydraulic cooler brackets to the holes I tapped. One got stripped, so will go with graded bolts tomorrow. The CAC can be put in position with one person, but lifting to the bolt holes is difficult without a third jack (see photo). So far I've only needed Kristi to be my ground guide (holding rope) while moving the radiator with the tractor. With the right tools, it looks like the whole operation can be done by one person. Tomorrow I should be able to raise it to the main attachment anchors.

Re: Replacing the radiator (update)

Reply #36 – April 30, 2017, 01:36:57 am

nice job Sven. I would have put the CAC on when all the rad things are hooked up as I found it easy to put on followed by fuel cooler.
Just think, if you had a pit how easy the hoses and all the stuff behind rad would be

JohnH

Re: Replacing the radiator (update)

Reply #37 – April 30, 2017, 02:13:08 am

Quote from: John Haygarth – April 30, 2017, 01:36:57 am

nice job Sven. I would have put the CAC on when all the rad things are hooked up as I found it easy to put on followed by fuel cooler.
Just think, if you had a pit how easy the hoses and all the stuff behind rad would be
JohnH

A pit would be helpful for hooking up the hoses, but lifting the radiator, etc. to the attachment point would be a problem.

Re: Replacing the radiator (update)

Reply #38 – May 01, 2017, 04:58:10 pm

Just to be kind, did you double check and re-check your new hydraulic line routing to ensure it was the same as it came off?

On mine RV of similar vintage, the motors are rotated 180 from each other (the case drains...the small hose...are opposite).

In the picture I see two T's on the bottom hose (unless the left T isn't one, but hard to tell in the picture). Unless something is changed greatly from 1998 to 2000, it isn't adding up.

Re: Replacing the radiator (update)

Reply #39 – May 02, 2017, 04:27:51 pm

Quote from: krush – May 01, 2017, 04:58:10 pm

Just to be kind, did you double check and re-check your new hydraulic line routing to ensure it was the same as it came off?

On mine RV of similar vintage, the motors are rotated 180 from each other (the case drains...the small hose...are opposite).

In the picture I see two T's on the bottom hose (unless the left T isn't one, but hard to tell in the picture). Unless something is changed greatly from 1998 to 2000, it isn't adding up.

Our setups must be different. I took photos, color taped hoses and made diagrams before disconnecting. The final "proof" is that only one hose would fit a particular fitting. The "T" fitting on the left, for example goes to the hydraulic cooler hose.

Re: Replacing the radiator (update)

Reply #40 – May 02, 2017, 04:47:30 pm

The radiator and accessory cooling units are installed and I'm in the process of attaching hoses, replacing transmission filters, and CAC and coolant pipes. I've had a few set backs: Some were of my own doing (cross threading trans, hose fittings, upside down hydraulic cooler brackets, etc) and others were not anticipated. The new radiator was 3/4" longer, making it a tighter fit against the beam to the rear and creating a problem with the forward diagonal rod brace. The original radiator had a welded piece of angle iron for a lower brace (other was bolted in), while the new one came with matching holes for braces. I ended up cutting the welded piece from the OEM radiator and tapping in holes to make it work. I had to bend the forward rod to allow for the wider radiator. Hopefully, I will be able to get that stinking slobber tube elbow in today, using suggestions several of you have made (I'll save the KY as a last resort).

Re: Replacing the radiator (update)

Reply #41 – May 02, 2017, 06:06:41 pm

Beautiful work. Way beyond my capabilities but I can admire from afar!

Re: Radiator update

Reply #42 – May 19, 2017, 10:19:39 pm

It has been a long time, but a lot has been done that I won't summarize. Today I added the fluids and checked for leaks and replaced a couple of narrow coolant hoses, fortunately at the top of the system. Tomorrow morning I will start it, check levels and hopefully, take it for a "check out flight".
The hydraulic reservoir only took 17 qts (of 24 expected), but I think the level will drop once the pump turns on.

Re: Replacing the radiator (update)

Reply #43 – May 20, 2017, 09:20:54 am

Sven,

What a great accomplishment. To add to what Mark said above (reply 41) that job is way beyond the job skills

of 99% of the people on here. My hat is off to you and I know I am not in that 1%, so congrats to all of you one

percenters on here. This is a really great tutorial for that is now archived in the Forum for the future. You can buy

many gallons of fuel and log lots of miles and smiles on the coach bucks you saved.

Congrats again,

Carter-

Re: Replacing the radiator (update)

Reply #44 – May 20, 2017, 12:41:36 pm

Thanks for the compliment Carter. I would hate to think what the labor charges would be.
The rig started right up and after the oil reached the fan motors they started purring. As expected, the oil level in the reservoir dropped and I was able to add another gallon. After idling for about 10 minutes, there is no sign of any leaks so far. Big thing is that the fans didn't fall out and hoses didn't pop off - I'm very capable of missing one clamp, etc.
I will do a write up of the experience and add photos for anyone that wants to do this. Surprisingly, I found that one person who isn't currently experiencing back problems can do the job with the right tools and a tractor. The motorcycle lifts made all the difference when it came to lifting into place and fine tuning the position. Kristi did help me by steadying the radiator while moving with the tractor. The last thing, is that you need the space to maneuver.
I will spend the rest of the day putting the body panels on and doing an engine oil change.

Re: Replacing the radiator (update)

Reply #45 – May 20, 2017, 03:27:23 pm

Hats off to you Sven! Still trying to find the time to get over there! Great job.

Re: Replacing the radiator (update)

Reply #46 – May 20, 2017, 04:31:05 pm

Sven,

You going to put 6 or 8 of those motorcycle lifts on

Craig's List and just keep 3 or 4 ? ? ?

Again great job to a one percenter,

Carter-

Re: Replacing the radiator (update)

Reply #47 – May 20, 2017, 04:43:03 pm

Great job! I love challenges like this. Get'er done!

Re: Replacing the radiator (update)

Reply #48 – May 20, 2017, 04:56:14 pm

John, you and Sven are both great at detailing and using pics to enlighten

old people like me that can barely get over to tie their shoes on how

to do a project.

Thanks to both of you,

Carter-

Re: Replacing the radiator (update)

Reply #49 – May 20, 2017, 10:49:17 pm

Sven, so the new replacement Rad was 3/4" wider and that was from the OEM manufacturer? Any reasons given for that change?
Hope you did take many more pics etc as I should be doing this fairly soon as it would sure be nice to be able to r+r the hydraulics at the same time and clean up framework etc. Well done.
johnH

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