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Old 01-11-2011, 06:26 PM   #1 (permalink)
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Default heater core hose removal

Hi folks,
It's been awhile since I've been on here, and I always end up here again when I need some help. I decided to do the long and drawn out process of cleaning out my heater blower motor by removing the dash and all that other fun stuff (rather than the other known fix of drilling a hole in the side of the box and vacuuming). I had to pull the dash to replace the wiper motor anyway, so here I am doing all of it.
Anyway, I have everything out now, EXCEPT the heater blower motor assembly. I need to know if anyone has a good, easy way of getting the heater hoses disconnected from the core side? On one hand I could cut them with a blade and try and yank them out but I was hoping to avoid that so I don't have to replace the hoses. And on the other hand I'm thinking I should replace them anyway--it's a 94 and I'm guessing they've never been replaced. Either way poses difficulty for A) cutting the hoses off the block side, or replacing the hoses back on the block side--one of them is in a difficult spot to reach and struggle with getting the new hose on.
Anyone done this before that has any tips or suggestions?
Thanks in advance,
Chris
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Old 01-12-2011, 12:40 PM   #2 (permalink)
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first time i did it I tried to pull them off but they were stuck on. Thought I'd use some channel locks and twist them off and crushed the brass tube that they fit over. DO NOT DO THAT! I got lucky and was able to make them round again without having to get a new heater core or braze new fittings on the old core. The second time i cut the hoses. Single slit down the top and peel them off like a bananna. Way easier and worth it for the price of a couple pieces of hose.
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Old 01-12-2011, 12:49 PM   #3 (permalink)
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Yeah, I think I've resigned myself to just replacing the hoses anyway instead of trying to get them out while sparing them. I'm sure even getting new ones on will be difficult on the block side for the one hose, but what can you do? And I went ahead or ordered a new heater core anyway. I'll keep the old one, clean it out, and hang on to it. I figured if I'm going in there, might as well replace stuff that might need replacing later as I really don't want to do this again. LOL
Thanks for the tips!
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Old 01-14-2011, 09:06 AM   #4 (permalink)
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There are lots of ways. Speaking from experience, its not wise to cut hoses, they are expensive to replace, and the original suzuki ones work just fine for our samurai's. That being said, spray a lil wd 40 around the where the hose meets the pipe, get a pick(90 end) and run it under the hose, prying it from the tube, spray a lil more wd 40, then put on some good gloves (menchanix) for better grib, and grab that hose and twist it back and forth till you get it off, believe it, I can get off any hose like this.
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Old 01-14-2011, 12:15 PM   #5 (permalink)
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Thx, I'll give that a shot. I haven't gotten back out there yet and cut anything, so I'll try the trick you suggested.
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Old 01-14-2011, 05:06 PM   #6 (permalink)
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I cut mine too but I overtightened clamp on new hose I managed to round out the core nipples again
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Old 01-16-2011, 02:07 PM   #7 (permalink)
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TXtintop--
your trick worked. I got the hoses off the block side. There wasn't enough space to get the pick and wd40 in there by the firewall/core side. So got any other tricks as to how to get the d*** blower assy pulled out? It's almost like the hoses are too fat to pull through the firewall, but I've seen pics of other folks that have pulled the core and hoses through the firewall into the cabin. It's loose and wants to come out, but I just can't get it. I had to take a mental health break.
Thanks

1/17 Got it out after it occurred to me to have someone push the hoses into the cabin while I pulled from the inside. Came right out. I just had to get the hoses past that "nipple" thing on the firewall.

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