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 1993 Montero SR tranny issues after installing used engine from Japan
#992828
04/04/10 11:29 PM
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Joined: Mar 2010
Posts: 9
OP
Need a Spot
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This is a follow-up to my previous post.
My mechanic was able to swap a used SOHC 6G72 from Japan (maybe from a 4 door sedan). He said the engine runs good, but know the automatic transmission is making a grinding noise and he is unable to shift it into gear. He said he has an extra rebuilt tranny from a 94 in his garage that he will try to swap with the broken tranny.
The previous engine through a rod, but I don't see any connection this would have with the tranny. What could cause a tranny to "breakdown" after "blowing up" an engine?
Thanks,
Ron
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: cyborg_89]
#992829
04/05/10 01:03 AM
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Joined: Sep 2004
Posts: 4,479
Roll Me Over
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Tell him to seat the torque converter right this time. He most likely only seated it down part way smashing the TC onto the trans when bolting the engine to the bellhousing. Brendan ruined his by not seating it all the way and it did the same exact thing grinding and not going into gear when he replaced the trans on my current Montero. He might chime in here and explain more.
Last edited by StockRaider; 04/05/10 01:06 AM.
Richard E 1989 Montero - Stock-ish 1989 V6 Auto Raider - 5.3 Vortech Swap. 1987 Mitsubishi Starion 2.6t, soon to be 3.5 1983 Honda XL600R 
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: StockRaider]
#992830
04/05/10 01:39 AM
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Joined: May 2007
Posts: 4,628
Roll Me Over
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Yep, have him go ahead and buy you another trans. Because he very likely busted the pump gears by forcing it without being lined up. That sucks.
Fasteddy's advice is occasionally sound...
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: hazy_daze]
#992831
04/05/10 01:51 AM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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Yup, that's what he did. And you need a new torque converter, too, probably. Blowing the engine would have zero effect on the tranny. Tell the doofus there are 3 sock-ins on the tranny, and to measure the stinkin' extension of the flexplate past the block bellhousing surface and make sure it matches the installed depth of the torque converter this time. He might get away with just an oil pump on the tranny, IF he finds all the pieces of the pump. And he probably won't.
Be prepared to talk lawyer at him...
Not responsible for advice not taken...
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: fasteddy]
#992832
04/05/10 01:53 AM
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Joined: May 2007
Posts: 4,628
Roll Me Over
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Hope he ain't a friend now. Cause, if he was, he probably won't be soon...
Fasteddy's advice is occasionally sound...
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: hazy_daze]
#992833
04/05/10 02:26 AM
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Joined: Mar 2010
Posts: 9
OP
Need a Spot
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So the tranny and TC are toast? I hope not, cause I had a hard time trying to find the engine. Now transmissions issues <img src="/forums/images/graemlins/barf.gif" alt="" /> <img src="/forums/images/graemlins/frown.gif" alt="" /> Could it still be rebuildable?
Yeah the mechanic was recommended to me by the previous owner of the my Montero.
If I do need a new tranny, can anyone recommend a shop or parts store near the San Gabriel, CA area.
Thanks for your help guys.
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: cyborg_89]
#992834
04/05/10 02:32 AM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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It's not your problem, it's his problem. The transfer case is most likely ok. No reason for it to have been hurt at all. I'd let him install the 94 tranny, for free, and give you a 2 year warranty on it. He can get yours rebuilt, and get some of his money back out of it.
Not responsible for advice not taken...
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: fasteddy]
#992835
04/05/10 03:35 AM
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Joined: Apr 2006
Posts: 1,193
Body Damage is Cool
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check the trans mount and make sure the transfer case is in gear
it dosent have to be surrounded by water to be an island
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: fasteddy]
#992836
04/06/10 08:00 AM
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Joined: Mar 2010
Posts: 9
OP
Need a Spot
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It's not your problem, it's his problem. The transfer case is most likely ok. No reason for it to have been hurt at all. I'd let him install the 94 tranny, for free, and give you a 2 year warranty on it. He can get yours rebuilt, and get some of his money back out of it. He's going to swap the 93 tranny with 94 from a DOHC. The bellhousing will need to be swapped also. Are there any compatibility issues swapping a 94 tranny into a 93?
Last edited by cyborg_89; 04/06/10 08:02 AM.
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Re: 1993 Montero SR tranny issues after installing used engine from Japan
[Re: cyborg_89]
#992837
04/06/10 01:35 PM
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Joined: Feb 2000
Posts: 3,269
Roll Me Over
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Yes, not to say it wont work but its a bit bigger trans that may not fit without a body lift. Mitsu lifted the body about an ich or so to fit this trans in the 94 and up DOHC's.
You'll also have to figure out the electrical circuit. The hold/normal/power modes.
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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