It is currently Sat Feb 24, 2018 6:06 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 166 posts ]  Go to page Previous  1 ... 5, 6, 7, 8, 9  Next
Author Message
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Tue Jan 15, 2013 10:46 am 
Offline
LOST Newbie

Joined: Tue Jan 15, 2013 10:38 am
Posts: 7
Hello all. My name is Matt. I am the other tech that worked on this swap.. It is doing very well. Has not fallen out. Has not blown up.

The owner of it was the main installer and fabricator.. The reason he has not replied is due only to a very busy period in life..

If anyone has any specific questions, i will be happy to answer them.


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Tue Jan 15, 2013 10:57 am 
Offline
Moderator / Lifetime Member
Moderator / Lifetime Member

Joined: Thu Jul 07, 2005 5:49 pm
Posts: 27641
Location: Central Ohio/ Tanzania
Apercep wrote:
Hello all. My name is Matt. I am the other tech that worked on this swap.. It is doing very well. Has not fallen out. Has not blown up.

The owner of it was the main installer and fabricator.. The reason he has not replied is due only to a very busy period in life..

If anyone has any specific questions, i will be happy to answer them.

FIRST
Welcome to LOST
NEXT
I'd suggest starting a new post with all of his info on it so its all together and easy to find
Run down of all parts used, from which vehicles/ model years etc
Any issues you ran into,
what you would do different the next time
pros and cons of doing it
That would be enough for today
:wink:

_________________
MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 Goodyears/ 4.10's etc, 04 Kilimanjaro Edition loaded


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Tue Jan 15, 2013 11:03 am 
Offline
Lifetime Member
Lifetime Member

Joined: Mon Jul 06, 2009 7:35 pm
Posts: 4632
:ROTFL:
:POPCORN:


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Tue Jan 15, 2013 2:02 pm 
Offline
LOST Newbie
User avatar

Joined: Tue Sep 04, 2012 3:42 pm
Posts: 24
Apercep wrote:
Hello all. My name is Matt. I am the other tech that worked on this swap.. It is doing very well. Has not fallen out. Has not blown up.

The owner of it was the main installer and fabricator.. The reason he has not replied is due only to a very busy period in life..

If anyone has any specific questions, i will be happy to answer them.


Welcome to LOST! We all look forward to reading about the experience!


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Tue Jan 15, 2013 9:26 pm 
Offline
Lifetime Member
Lifetime Member
User avatar

Joined: Thu Dec 29, 2005 9:59 pm
Posts: 5160
Location: Austin, TX
Howdy Matt - yes - as much info as possible
I'm thinking the mechanically it shouldn't be too difficult - the 3.7 and 4.7 are close
did it need new engine mounts?
change radiator position?
cables? connections?

but most significantly - Electronics - how did the computers match up?
is it just pull everything out of the donor?
- any wiring modes needed?

_________________
2005 CRD
stuff
Skeptic quod gratis asseritur, gratis negatur


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Thu Jan 17, 2013 2:50 pm 
Offline
LOST Newbie

Joined: Tue Jan 15, 2013 10:38 am
Posts: 7
Alright. Due to the hectic schedule the Fourseven has, I am gonna give a quick and dirty once-over on the swap.

Mechanically, the engine mounts from the 3.7 had to be slightly modded (drill some new holes) and the mounts on the K-member were moved forward.. The radiator was left as is. The fan was replaced with an aftermarket slim fan for clearance. The AC was kept from the 3.7. The exhaust Y-pipe was custom fabbed.

The bulk of the work was in the wiring. The WJ PCM and TCM were used in the swap. the WJ engine and trans harness was completely torn apart and re-pinned into the KJ body harness and engine and trans connectors.. you could call that a wiring mod... Then the computers were reprogrammed.


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Thu Jan 17, 2013 3:19 pm 
Offline
LOST Newbie

Joined: Tue Jan 15, 2013 10:38 am
Posts: 7
This was part of the process:

Image


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Thu Jan 17, 2013 6:55 pm 
Offline
Moderator / Lifetime Member
Moderator / Lifetime Member

Joined: Thu Jul 07, 2005 5:49 pm
Posts: 27641
Location: Central Ohio/ Tanzania
and again maybe start your own thread to keep everything together for those that are following your / his build

_________________
MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 Goodyears/ 4.10's etc, 04 Kilimanjaro Edition loaded


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Fri Jan 18, 2013 1:46 am 
Offline
LOST Newbie

Joined: Tue Jan 15, 2013 10:38 am
Posts: 7
i am going to let him start the new thread..


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Fri Jan 18, 2013 5:12 pm 
Offline
LOST Newbie
User avatar

Joined: Tue Sep 04, 2012 3:42 pm
Posts: 24
Apercep wrote:
Alright. Due to the hectic schedule the Fourseven has, I am gonna give a quick and dirty once-over on the swap.

Mechanically, the engine mounts from the 3.7 had to be slightly modded (drill some new holes) and the mounts on the K-member were moved forward.. The radiator was left as is. The fan was replaced with an aftermarket slim fan for clearance. The AC was kept from the 3.7. The exhaust Y-pipe was custom fabbed.

The bulk of the work was in the wiring. The WJ PCM and TCM were used in the swap. the WJ engine and trans harness was completely torn apart and re-pinned into the KJ body harness and engine and trans connectors.. you could call that a wiring mod... Then the computers were reprogrammed.


Awesome. Who did you have do the reprogramming?


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Fri Jan 18, 2013 6:02 pm 
Offline
LOST Newbie

Joined: Tue Jan 15, 2013 10:38 am
Posts: 7
I did.... I have access to a Chrysler scan tool..


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Fri Jan 18, 2013 6:30 pm 
Offline
Lifetime Member
Lifetime Member
User avatar

Joined: Thu Sep 18, 2008 8:37 pm
Posts: 2117
Location: trotwood Ohio
Apercep wrote:
I did.... I have access to a Chrysler scan tool..



what scan tool did you use drb3, star scan or Starmobile?

_________________
With enough fabbing, time & $, it's certainly possible.
That being said, it's like boinkin' your sister...just because you can, doesn't mean you should.


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Fri Jan 18, 2013 9:50 pm 
Offline
Lifetime Member
Lifetime Member

Joined: Sat Apr 01, 2006 9:38 pm
Posts: 13040
Location: Colorado Springs
teckman02 wrote:
Apercep wrote:
I did.... I have access to a Chrysler scan tool..



what scan tool did you use drb3, star scan or Starmobile?

That would depend on the year of the KJ and computer going in.Up to '04 is DRBIII and '05+ is the Starscan(star mobile).


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Wed Jan 23, 2013 9:39 pm 
Offline
LOST Newbie
User avatar

Joined: Tue Sep 04, 2012 3:42 pm
Posts: 24
What was the most difficult aspect of the install? What unexpected issues did you encounter that presented the biggest problem? Anything that you would you wouldve done differently in hindsight?

Again, great job on the install. Kickass job on the whole thing.


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Sat Jan 26, 2013 5:33 pm 
Offline
LOST Newbie
User avatar

Joined: Tue Sep 04, 2012 3:42 pm
Posts: 24
How about this take on wiring and programming:

Quote:
Hi Patrick

The best and easiest way to do a modern day engine swap is to use 2 ECM, dual computer system.
Keep the jeep liberty ECM (ECM1)in the vehicle to control the dash board (fuel gages, tack, exct…) need the crank censer from ECM1 attached to the new engine to bring the original ECM1 to life. You may need to add an exciter ring from the liberty engine to the new engine. This is so ECM1 thinks it is still attached to the V6.
 
Next with the new engine/trans/ECM (use both with it factory ECM (ECM2) attached) Now ECM2 controls only the engine/trans functions as a standalone system.  Keeping the engine and trans together with the ECM2, the shift points will be intact with the engine throttle position, tack, and the output censer in the trans.  Now you can use a std after market flash on the ECM form the original vehicle configuration.
 
This is the most economical and most reliable way to do a modern day engine swap. 


Anyone thought of this approach before? Seems there may be more than one way to skin a cat on this one. Definitely the least intrusive and simple idea that I've heard so far.


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Sat Jan 26, 2013 7:59 pm 
Offline
Lifetime Member
Lifetime Member
User avatar

Joined: Thu Sep 18, 2008 8:37 pm
Posts: 2117
Location: trotwood Ohio
Honduras wrote:
How about this take on wiring and programming:

Quote:
Hi Patrick

The best and easiest way to do a modern day engine swap is to use 2 ECM, dual computer system.
Keep the jeep liberty ECM (ECM1)in the vehicle to control the dash board (fuel gages, tack, exct…) need the crank censer from ECM1 attached to the new engine to bring the original ECM1 to life. You may need to add an exciter ring from the liberty engine to the new engine. This is so ECM1 thinks it is still attached to the V6.
 
Next with the new engine/trans/ECM (use both with it factory ECM (ECM2) attached) Now ECM2 controls only the engine/trans functions as a standalone system.  Keeping the engine and trans together with the ECM2, the shift points will be intact with the engine throttle position, tack, and the output censer in the trans.  Now you can use a std after market flash on the ECM form the original vehicle configuration.
 
This is the most economical and most reliable way to do a modern day engine swap. 


Anyone thought of this approach before? Seems there may be more than one way to skin a cat on this one. Definitely the least intrusive and simple idea that I've heard so far.


sounds like a lot more work for me

_________________
With enough fabbing, time & $, it's certainly possible.
That being said, it's like boinkin' your sister...just because you can, doesn't mean you should.


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Sat Jan 26, 2013 8:53 pm 
Offline
LOST Newbie

Joined: Tue Jan 15, 2013 10:38 am
Posts: 7
That just sounds horrible..


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Sat Jan 26, 2013 9:44 pm 
Offline
Lifetime Member
Lifetime Member

Joined: Sat Apr 01, 2006 9:38 pm
Posts: 13040
Location: Colorado Springs
teckman02 wrote:
Honduras wrote:
How about this take on wiring and programming:

Quote:
Hi Patrick

The best and easiest way to do a modern day engine swap is to use 2 ECM, dual computer system.
Keep the jeep liberty ECM (ECM1)in the vehicle to control the dash board (fuel gages, tack, exct…) need the crank censer from ECM1 attached to the new engine to bring the original ECM1 to life. You may need to add an exciter ring from the liberty engine to the new engine. This is so ECM1 thinks it is still attached to the V6.
 
Next with the new engine/trans/ECM (use both with it factory ECM (ECM2) attached) Now ECM2 controls only the engine/trans functions as a standalone system.  Keeping the engine and trans together with the ECM2, the shift points will be intact with the engine throttle position, tack, and the output censer in the trans.  Now you can use a std after market flash on the ECM form the original vehicle configuration.
 
This is the most economical and most reliable way to do a modern day engine swap. 


Anyone thought of this approach before? Seems there may be more than one way to skin a cat on this one. Definitely the least intrusive and simple idea that I've heard so far.


sounds like a lot more work for me

Actually easier then you think and by far the easiest as little to no wiring mods needed.


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Mon Jan 28, 2013 5:57 pm 
Offline
LOST Newbie
User avatar

Joined: Tue Sep 04, 2012 3:42 pm
Posts: 24
Looking into picking up an 04 1500 4.7 HO this week. Might be able to do this by the end of next month if all goes well.


Top
 Profile  
 
 Post subject: Re: 4.7 V8 Liberty
PostPosted: Sat Feb 02, 2013 6:43 am 
Offline
LOST Newbie

Joined: Fri Aug 24, 2012 7:32 pm
Posts: 2
Apercep wrote:
That just sounds horrible..

So hope your talking about the all the work and not the exhaust lol jk

Sent from my HTC Sensation using Tapatalk 2


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 166 posts ]  Go to page Previous  1 ... 5, 6, 7, 8, 9  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group. Color scheme by ColorizeIt!
Logo by pixeldecals.com