Blew MCI radiator

Scott & Heather · June 23, 2014, 09:04:16 AM

We have a nice little stream of coolant leaking from the curbside radiator. I guess I'll be searching the forum for a source to buy a new one recore this one. Is there an R&R instruction thread for replacing the radiator on an MCI 9?

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gumpy · June 23, 2014, 09:13:54 AM

http://www.gumpydog.com/Bus/MC9_WIP/Mechanical/Radiators_And_Blowers/radiators_and_blowers.htm

Oonrahnjay · June 23, 2014, 10:34:09 AM

Quote from: gumpy on June 23, 2014, 09:13:54 AMhttp://www.gumpydog.com/Bus/MC9_WIP/Mechanical/Radiators_And_Blowers/radiators_and_blowers.htm

Good write-up, Gumpy. Well described and the photos are clear. Cleaning, fixing and straightening is a big part of all this, isn't it? Those two big blowers up above your engine -- do they draw air through the radiators? A centrifugal blower like that is always going to move air better than a bladed fan but they're sure big, and, by your account, heavy as anvils! Where does the air exit from them? It looks like they shoot straight down onto the engine but that wouldn't make much sense (sorry, I don't have any experience with an MC9). Everything still working well?
Thanks, Bruce H NC USA

lvmci · June 23, 2014, 11:13:42 AM

Hi All, MCIs from the 5s on air is sucked in thru the split radiators at window level, pushes air thru fan department to engine compartment, and is sucked out the bottom and onto the roadbed, this is the reason mud flaps have to be (infront of the engine and) just behind the wheels not across the entire rear, mounted to the bumper, this is not for models where the single radiator is mounted in other places, lvmci...

grantgoold · June 23, 2014, 11:45:17 AM

When I repaired both my radiators, I made sure to replace the rubber seal around each unit. That really made a huge difference on "sucking" efficiency!

Grant

Scott & Heather · June 23, 2014, 07:58:35 PM

Thanks gumpy!!!!

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stegey · June 24, 2014, 04:42:52 AM

If you can't find anyone else give these guys a call. I know that they handled MCI radiators a few yeas back.

http://www.dieselradiator.com/

800 - 345-9244

Nineforever · June 24, 2014, 05:23:05 AM

Im a little off the beaten path , if you need mc9 radiators i have several in good condition .

gene burge · June 24, 2014, 05:41:18 PM

just replaced both my radiator cores , 1992 mci 102d 6v92 , got them from general radiator industries , 1380.00 plus shipping . not a terrible job if you do it yourself , took a few nights ,

Geoff · June 24, 2014, 06:37:35 PM

Get some gas tank epoxy repair for a couple of bucks, push it in the leak, and keep on busing!

Scott & Heather · June 25, 2014, 11:26:03 AM

I'm going the repair or replace route. Took me a couple of hours but I finally yanked the old one out. What a pain. Anyway, hoping the other one doesn't spring a leak on me for at least a couple of months.

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Seangie · June 25, 2014, 05:07:39 PM

Good Job Scott. Should do them both at the same time

Scott & Heather · June 25, 2014, 07:12:00 PM

I would if the budget allowed but one good rad will get us going

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luvrbus · June 25, 2014, 09:42:19 PM

Wow,it was rotten doesn't look like epoxy would have worked on that one

Scott & Heather · June 26, 2014, 11:37:08 AM

Quote from: luvrbus on June 25, 2014, 09:42:19 PM
Wow,it was rotten doesn't look like epoxy would have worked on that one

yeah...when geoff posted that he hadn't seen the photo of it out yet. northern winters do a number on these