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 Advice needed on exchanging 3.0 liter engines
#946897
05/26/09 08:54 PM
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Joined: Nov 2004
Posts: 391
OP
Mudrunner
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Will a 6G72, 3.0 liter Mitsubishi engine from a 2-wheel drive 1998 Montero Sport fit directly into a 1991 LWB Montero? Is this a direct fit and an easy swap? If you gurus tell me this is easy, then I've found an engine for the 1991 LWB (rod knock) I rescued from the junkyard a few weeks ago.
Bob
DDs:
Projects: 86 Ram50
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Re: Advice needed on exchanging 3.0 liter engines
[Re: 87_Montero]
#946898
05/26/09 10:08 PM
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Joined: Feb 2004
Posts: 10,238
Web Wheeler
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The short answer is "No".
The long answer is that it can be made to work, but you'll need parts from the Gen1 engine - like the oil pan and some other top end parts, sensors, etc.
frank
'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum
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Re: Advice needed on exchanging 3.0 liter engines
[Re: FrankR]
#946899
05/27/09 03:22 AM
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Joined: Feb 2000
Posts: 3,269
Roll Me Over
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You'll also have to figure out how to manage the engine as a 98 3.0 will be a 24 valve, disributerless setup. So your looking at swapping in the 98 ECM. Exhaust will need to be figured out as well.
99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..
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Re: Advice needed on exchanging 3.0 liter engines
[Re: justice]
#946900
05/27/09 01:36 PM
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Joined: Nov 2004
Posts: 391
OP
Mudrunner
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Thanks, guys. It makes perfect sense . . . there would be a world of difference between a 1991 that has a carburetor, and a 1998 with electronic ignition. The 1998 also probably has fuel injection. The 1998 engine showed up on my radar via the 4x4wire. I suppose if I had seen it I would have recognized it would not be a direct transplant.
DDs:
Projects: 86 Ram50
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Re: Advice needed on exchanging 3.0 liter engines
[Re: 87_Montero]
#946901
05/27/09 02:05 PM
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Joined: Feb 2004
Posts: 10,238
Web Wheeler
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The '91 is EFI - not carbureted, but there's still a world of difference in the rest of the engine.
Frank
'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum
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Re: Advice needed on exchanging 3.0 liter engines
[Re: FrankR]
#946902
05/27/09 02:20 PM
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Joined: Nov 2004
Posts: 391
OP
Mudrunner
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Yes, the 1991 is EFI. Two things I've learned from the 4x4wire - humility, and the importance of holding onto my day job!
DDs:
Projects: 86 Ram50
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Re: Advice needed on exchanging 3.0 liter engines
[Re: 87_Montero]
#946903
05/28/09 07:25 AM
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Joined: May 2006
Posts: 524
Rock Warrior
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If you go on with the swap, please document it. I'd like to do a 12V to 24V 3.0 swap.
89 3L V6 5spd SWB, Aisin Manual Hubs, 2 (suspension) seater Raider in Wheeler, OR
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