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Old 03-29-2019, 03:51 PM   #43
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Originally Posted by wolfe10 View Post
OR, better yet, order 1/2 the volume of CONCENTRATE. Lots easier to achieve a 50/50 mixture after using distilled water for final rinse.


Drain last rinse. Add 1/2 volume of concentrate and top off with distilled water. You really don't care if it takes 1 gallon of water or 5. The amount will be dependent on how much is in the hoses to/from the dash heater core and the core itself.


Only way to achieve 50/50 with pre-dilute is to take loose a line and blow out all coolant in the lines/heater core. And you still may have a little residual distilled water in the engine block.
How would you determine half the volume when the manual says 10 gallons and Carter used 14?
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Old 03-29-2019, 03:59 PM   #44
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Understood. I shouldnít have to worry about distilled water if they arenít actually flushing, should I? The last analysis I had a year ago showed 47% coolant. Iím just going to refill with the same type of coolant already pre-mixed. I have 9 gallons already. Iím going to have to put 2-3 in it to get there. Iím thinking if I have 16 total gallons, that should cover the 40 mile drive there with the 2-3 added and 13-14 to add after reinstall.

I donít care to have a lot of stock, as itís 100,000 mile coolant and weíre going to be moving.
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Old 03-29-2019, 04:08 PM   #45
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If you are not flushing that should be good.
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Old 03-29-2019, 04:58 PM   #46
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The rigid pipe connecting to the bottom of the radiator is transferring oil to the oil cooler, correct?
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Old 04-12-2019, 09:08 PM   #47
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For those that have replaced their radiator, would any of you have a picture of the bushings properly installed? Iíd greatly appreciate it!
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Old 04-13-2019, 08:36 AM   #48
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Go back and read post #20 in this thread. Rick already posted great pictures of both the upper and lower isolation supports installed correctly.
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Old 04-13-2019, 08:50 AM   #49
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Rick didnít use standard bushings. Iíve had detailed conversations with Rick on that. The specs on the Macís radiator make it impossible for me to use the same bushings he did.

I looked at your pictures earlier in this post. I certainly appreciate them.

Iím trying to find pictures of them installed correctly to send to the RV Shop doing the install so they know exactly what they should look like when installing.
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Old 05-01-2019, 05:56 AM   #50
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Quick question, does anyone have the correct part number for the radiator cap for the main engine? I found a Stant part number in older posts, but itís not the right size (believe itís for the generator).

Thanks in advance.
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Old 05-01-2019, 08:09 AM   #51
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Quick question, does anyone have the correct part number for the radiator cap for the main engine? I found a Stant part number in older posts, but itís not the right size (believe itís for the generator).

Thanks in advance.

Here is what I used on our 2003 ISL:

10 PSI cap Stant 10237. With 50/50 coolant, that gives a boiling point of 253 degrees F.



I see no need to go to a higher PSI cap!
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Old 05-01-2019, 08:22 AM   #52
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….think the OEM is a std automotive cap [16lbs]….however, what Brett offered makes sense to me....with the expansion tank system, WRV didn't install an OEM "overflow" tank....so any coolant that does get passed the cap is lost.... this creates a potential issue for owners who check their coolant level when engine is cold and repeatedly overfill the system....IMHO--adding an overflow tank to an expansion tank system is kind of "belt and suspenders."
PS--have always wondered about the term "vented" cap????…. assume it is designed for overflow/recovery tank systems????
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Old 05-01-2019, 09:18 AM   #53
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Yes, I should mention that I did add a coolant overflow reservoir.


Never was comfortable knowingly having air/oxygen in the cooling system.
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Old 05-01-2019, 11:38 AM   #54
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Originally Posted by wolfe10 View Post
Here is what I used on our 2003 ISL:

10 PSI cap Stant 10237. With 50/50 coolant, that gives a boiling point of 253 degrees F.



I see no need to go to a higher PSI cap!


Thanks Brett!
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Old 05-01-2019, 11:39 AM   #55
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Quote:
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Ö.think the OEM is a std automotive cap [16lbs]Ö.however, what Brett offered makes sense to me....with the expansion tank system, WRV didn't install an OEM "overflow" tank....so any coolant that does get passed the cap is lost.... this creates a potential issue for owners who check their coolant level when engine is cold and repeatedly overfill the system....IMHO--adding an overflow tank to an expansion tank system is kind of "belt and suspenders."
PS--have always wondered about the term "vented" cap????Ö. assume it is designed for overflow/recovery tank systems????


Appreciate it Dean!
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Old 05-01-2019, 12:07 PM   #56
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FWIW: the OEM radiator cap on a 2005 400ISL is 16psi. Stant 10233, I believe.
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