Author Topic: Transfer case integrity after fire  (Read 346 times)

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4runner17

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Transfer case integrity after fire
« on: Jul 30, 2019, 08:30:15 PM »
Hi guys just curious if anyone would have any input as to my gear drive Toyota cases being good after the truck burned down in a fire we had last year. There was still gear oil in them. It obviously smelt burnt but do you think the housing is still usable? Other than the shifter bushing on the sticks burning off they look fine. Yes of course I can find another case but if they are still usable with a rebuild why not use them right?

helipilot77

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Re: Transfer case integrity after fire
« Reply #1 on: Jul 31, 2019, 09:54:55 AM »
I would put a gasket and seal kit in it to replace any of the seals and paper gaskets, but I would think the hard parts would be fine. you'll be the first to know if it went wrong.
-1987 SR5 4runner, 1KZ-te turbo diesel with custom 3" S.S. dump pipe, R-151f transmission, marlin dual ultimate transfer cases w/ triple shifter, SAS, 35's https://board.marlincrawler.com/index.php?topic=98969.0
-1984 SR5 Tercel 4wd wagon bone stock - given to my nephew https://board.marlincrawler.com/index.php?topic=100547.0
-1:10 scale RC 4wd crawler w/yota axles, R2 2 speed enclosed dig tranny and 1st gen 4Runner body by BigBird
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4runner17 [OP]

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Re: Transfer case integrity after fire
« Reply #2 on: Jul 31, 2019, 11:10:53 AM »
Yea kinda what I was thinking. I mean I really only want to use the front crawlbox for my TacoBox adapters on my 2000. MCR will mist likely be itís maiden voyage and it would suck if it broke after a hour or two into the trail lol

4runner17 [OP]

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Re: Transfer case integrity after fire
« Reply #3 on: Jul 31, 2019, 11:13:10 AM »
It didnít even completely burn off the fiberglass top on the back and my spare tire was in the back and it burned pretty hot

blackdiamond

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Re: Transfer case integrity after fire
« Reply #4 on: Aug 01, 2019, 05:52:05 PM »
When my adapter bearing failed twice (long story) my transfer case got crazy hot. I couldnít even get my hand within 6 inches comfortably. I have a different adapter now, but the rest of it is the same parts and itís been going since 2007.
1989 4Runner: Dual Ultimate (Inchworm front & Marlin 4.70 rear), Marlin Twin Stick, 1200-lb clutch, 4.88 R&P, Aussie Front, Detroit rear, 30-spline Longs, Long hub gears, ARP hub and knuckle studs & 35x12.50 Cooper STT PRO tires.  Marlin rear bumper & sliders.  FROR front bumper.  SAS with Alcan springs & Rancho 9000XL shocks.  Budbuilt Bolt-on traction bar.  Custom Interior Cage by Those Guys Rod and Customs.

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4runner17 [OP]

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Re: Transfer case integrity after fire
« Reply #5 on: Aug 01, 2019, 06:32:32 PM »
When my adapter bearing failed twice (long story) my transfer case got crazy hot. I couldnít even get my hand within 6 inches comfortably. I have a different adapter now, but the rest of it is the same parts and itís been going since 2007.

Well thatís some reassurance!

Dingman.

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Re: Transfer case integrity after fire
« Reply #6 on: Aug 01, 2019, 06:40:50 PM »
So many people pulled cases and axles out of their Toyotaís. I didnít bother with mine, just because it wasnít worth the gamble to me of having the heat damaging the gears and breaking in the middle of a trail.  With that said, I will probably kick myself when everyone else has good luck and I could have reused my duals with 4.7 gears and chromo output, I just feel like it would always be in the back of my mind that the fire damaged the heat treatment of the gears.

emsvitil

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Re: Transfer case integrity after fire
« Reply #7 on: Aug 01, 2019, 06:58:29 PM »
I would think the aluminum cases would melt/warp before the gears were affected.

As long as there's still oil on the gears (didn't get hot enough to burn off or evaporate), I'd think the gears would be fine.
Ed
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31x10.50R15

blackdiamond

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Re: Transfer case integrity after fire
« Reply #8 on: Aug 01, 2019, 07:09:41 PM »
My thought would be that I would expect the fluid to "burn" before the metal part would be damaged.  If the fluid didn't see to be burned, when you drained it, I'd feel pretty good about things.
1989 4Runner: Dual Ultimate (Inchworm front & Marlin 4.70 rear), Marlin Twin Stick, 1200-lb clutch, 4.88 R&P, Aussie Front, Detroit rear, 30-spline Longs, Long hub gears, ARP hub and knuckle studs & 35x12.50 Cooper STT PRO tires.  Marlin rear bumper & sliders.  FROR front bumper.  SAS with Alcan springs & Rancho 9000XL shocks.  Budbuilt Bolt-on traction bar.  Custom Interior Cage by Those Guys Rod and Customs.

Moab Tested & Rubicon Approved

4runner17 [OP]

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Re: Transfer case integrity after fire
« Reply #9 on: Aug 01, 2019, 10:00:53 PM »
It def smelt burnt but I would guess about 3 qts still come out when we drained it

4runner17 [OP]

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Re: Transfer case integrity after fire
« Reply #10 on: Aug 01, 2019, 10:14:14 PM »
Itís first real wheeling trip will be mcr and I donít really want my trip to be cut short because the case exploded lol

4runner17 [OP]

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Re: Transfer case integrity after fire
« Reply #11 on: Aug 01, 2019, 10:14:43 PM »
On the lookout for a used case mainly just a cralwbox

4runner17 [OP]

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Re: Transfer case integrity after fire
« Reply #12 on: Aug 02, 2019, 09:57:29 AM »
Meh going atlas forget the toy stuff

 
 
 
 
 

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