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4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Getting the best performance from your Isuzu, the in's and out's

Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby casino3710 » Thu Apr 10, 2014 1:33 pm

i have an isuzu trooper skyroof edition, and im planning to relace 4jx1 to 4jb1...does the 4jb1 working good as you mention..please help me on how i do it..i like to put 4jx1 in rest....tenx for the help
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby casino3710 » Fri Apr 11, 2014 6:17 pm

which is more
better, the 4jb1 or 4jg2 engine to replace 4jx1....please help me to choose which is better....
my trooper has an automatic transmission, if i buy 4jb1 or 4jg2 engine thus my transmission can be use if they are in manual transmission? tenx buddy
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby stardog » Fri Apr 11, 2014 6:58 pm

4jg2 with a auto
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby geeves » Fri Apr 11, 2014 7:35 pm

I would of said 4jb1 but they dont work that well with an auto. The power loss is too much. Switching to a manual transmission can be done but there are so many things that make it hard. Things like the clutch etc
4jg2 is still a good motor as well.
I have both
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby kithsirilanka » Mon May 05, 2014 4:33 am

Can you please send me the Isuzu Trooper 4JB1T Workshop Manual? Many Thanks. Kithsiri Sri Lanka ceo@cbtdsl.org
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby geeves » Mon May 05, 2014 4:44 pm

All the manuals I have can be found here
viewtopic.php?f=12&t=4123
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby NPILE4JB1 » Wed Jan 06, 2016 8:37 pm

Hey guys. Myself and a mate are currently doing this conversion. The 4JX1 is out and we have found that the clutch needs replacing. These are ridiculously expensive and was wondering if its possible to leave clutch setup from 4JB1 on? does Jackaroo bellhousing bolt straight up to 4JB1? would i then not have to install the Aluminium spacer? Finally does anyone know if rodeo gearbox fits into Jackaroo.

I know this is an old post but any info would be great. Cheers.
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby markyap » Mon Jan 18, 2016 5:53 pm

is this forum still active? please send me PDF of the conversion.. i converted my 4jx1 to 4jb1 along with the auto to manual transmission.. i have problems with the acceleration.. the car is having a hard time climbing.. what am i missing? thanks in advance
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby geeves » Mon Jan 18, 2016 6:41 pm

Sanding your knuckles before starting work can help. That way you cant skin them
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby KBe878G » Fri Nov 18, 2016 10:08 pm

Hi, am very much interested in this swap - my 4jx1 has been giving me hell on earth.
Help a brother out.
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby geeves » Sat Nov 19, 2016 5:40 am

Look through the links further up this thread. Its a bit of work.
One thing that can be done now is to swap to the 4jj1 or 4jh1. Bellhousings match so easier swap. These are a newer engine so more expensive but better power etc
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby Vinkell » Mon Nov 26, 2018 8:41 am

Hi I would like a copy of the PDF please, send it to hrafnkellh@hotmail.com
Thank you.
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby geeves » Mon Nov 26, 2018 4:10 pm

Sanding your knuckles before starting work can help. That way you cant skin them
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby emilcabrera » Fri Mar 08, 2019 1:29 pm

Hi geeves the link is not working, can you share it again or send or send to my email emilcabrera1983@gmail.com, thanks a lot for the help
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby geeves » Fri Mar 08, 2019 2:59 pm

Sanding your knuckles before starting work can help. That way you cant skin them
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby emilcabrera » Mon Mar 18, 2019 10:37 pm

Thank you so much sir
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby mushotaoliver » Wed Aug 21, 2019 12:28 pm

Hi,
I would like to have a copy. I wish to convert. Send it in PDF to mushotaoliver@gmail.com
Thank you.
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Re: 4JX1 to 4JB1 Jackaroo/Bighorn/Trooper conversion

Postby geeves » Wed Aug 21, 2019 3:13 pm

just use the link above
Sanding your knuckles before starting work can help. That way you cant skin them
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