Needs tips on replacing engine

Explode1982 · 03-06-2011, 03:56 PM

Hi everyone. I am going to attempt to replace my 4.6 in my 02 explorer. Does anyone have experience replacing one before?? Do I need to take the trans out first?? Is there any tricks or tips you can share?? I bought a Haynes manual. And it says the trans needs removed. I'm not sure why this is. Why can't it stay in?? Along with transfer case, drive-shat, axles, ect.

Thanks for your help in advance

Explode1982 · 03-06-2011, 03:58 PM

Also should I replace anything on junkyard engine before I install??

swetrid · 03-06-2011, 05:43 PM

You can let thet trans in but it makes installation tougher because of having to line up everything properly.

EasyRhino · 03-06-2011, 06:04 PM

Quote:

Originally Posted by Explode1982

Also should I replace anything on junkyard engine before I install??

Unless I had a lot of data on the used engine, my general incination would be to tear it down and build it back with new rings and bearings, plus timing chains with tensioners and followers. Plus I would inspect everything for wear and damage, including valves, oil pump, head gaskets,, plus all the topside stuff (plugs, injectors).

This would alll be because I would not want to do two engine removals and replacements when one would do.

04 EDGE · 03-06-2011, 09:16 PM

If you are going to go through all of that on the used engine why not just rebuild the one that's in it now?

EasyRhino · 03-06-2011, 09:22 PM

Quote:

Originally Posted by 04 EDGE

If you are going to go through all of that on the used engine why not just rebuild the one that's in it now?

Good point, unless one needed to do a rapid down and back up, necessitating a ready to install unit in pocket in parallel with the old unit coming out.

Explode1982 · 03-07-2011, 11:55 AM

Good point. I don't want to do this job twice. I'm know going to buy a rebuilt engine from LKQ. Price seems fair $2150 plus core.

*Glen4X4* · 03-07-2011, 12:02 PM

Yeah, as said the transmission shouldn't need removed....it can just be a pita aligning the engine and trans back together. Just make sure when you're torquing the intake and exhaust bolts that you use a torque wrench so that you don't over or under tighten them. You may find taking pictures before unhooking everything and taking them during the tear down process helpful.

03-06-2011, 03:56 PM	#1
Explode1982 Wannabe Elite Explorer York pa 2002 explorer xlt Join Date: Mar 2011 Posts: 5 Vehicle Specs (Original Poster)	Needs tips on replacing engine Hi everyone. I am going to attempt to replace my 4.6 in my 02 explorer. Does anyone have experience replacing one before?? Do I need to take the trans out first?? Is there any tricks or tips you can share?? I bought a Haynes manual. And it says the trans needs removed. I'm not sure why this is. Why can't it stay in?? Along with transfer case, drive-shat, axles, ect. Thanks for your help in advance

03-06-2011, 05:43 PM	#3
swetrid Wannabe Elite Explorer Reading Pa 2001 Eddie Bauer Join Date: Sep 2010 Posts: 1,883 Vehicle Specs	You can let thet trans in but it makes installation tougher because of having to line up everything properly. __________________ Resident Ford Tech for the last 17 years, 2001 Eddie Bauer 5.0L, Cherry Bomb Cat back, 2010 Ecoboost Flex

03-07-2011, 12:02 PM	#8
Glen4X4 Elite Explorer McClure, Pa. 96,97 Join Date: Jun 2007 Posts: 6,438 Vehicle Specs	Yeah, as said the transmission shouldn't need removed....it can just be a pita aligning the engine and trans back together. Just make sure when you're torquing the intake and exhaust bolts that you use a torque wrench so that you don't over or under tighten them. You may find taking pictures before unhooking everything and taking them during the tear down process helpful. __________________ 96 Explorer XLT TT/Shackles 33's 4.88's 03 Silverado 1500 LS 4X4

03-06-2011, 03:58 PM	#2
Explode1982 Wannabe Elite Explorer York pa 2002 explorer xlt Join Date: Mar 2011 Posts: 5 Vehicle Specs (Original Poster)	Also should I replace anything on junkyard engine before I install??

03-06-2011, 09:16 PM	#5
04 EDGE Wannabe Elite Explorer Westland Michigan Join Date: Jan 2011 Posts: 136 Vehicle Specs	If you are going to go through all of that on the used engine why not just rebuild the one that's in it now?

03-07-2011, 11:55 AM	#7
Explode1982 Wannabe Elite Explorer York pa 2002 explorer xlt Join Date: Mar 2011 Posts: 5 Vehicle Specs (Original Poster)	Good point. I don't want to do this job twice. I'm know going to buy a rebuilt engine from LKQ. Price seems fair $2150 plus core.