4.0 engine rebuild.

dylan_133 · 10-03-2008, 06:21 PM

I want to rebuild my engine i got quoted for 100 dollars a cylinder, that seemed ok, i want to get just a basic rebuild, if someone has done this could they please tell me how much they payed for it or if they did it themselves how muchall the parts were worth. i have 291,000 miles on my engine and i think it about time to tune it up.

Masterd · 10-04-2008, 07:23 PM

286k on mine?

Any particular reason for the rebuild?

*Texan01* · 10-05-2008, 11:17 AM

I'd run a compression test or leakdown test to see if the valves or rings are worn out. If you do a compression test and one cylinder is low then i'd think about rebuilding it. if they are all under 100 psi then it might be time for a rebuild.

I've got 235k on mine and it's only problem is noisy valvetrain.

dylan_133 · 10-05-2008, 03:00 PM

yeah i have though about just doing the valve train, i want to do a rebuild becuase i get about 7 mpg and its mostly my transmission but i thoughthat if i get a new one which i plan on doi ng very soon and a rebuild for my engine it would get it back to the original mpg.

10-03-2008, 06:21 PM	#1
dylan_133 Wannabe Elite Explorer Grants Pass, Oregon '91 explorer EB Join Date: Mar 2007 Posts: 81 Vehicle Specs (Original Poster)	4.0 engine rebuild. I want to rebuild my engine i got quoted for 100 dollars a cylinder, that seemed ok, i want to get just a basic rebuild, if someone has done this could they please tell me how much they payed for it or if they did it themselves how muchall the parts were worth. i have 291,000 miles on my engine and i think it about time to tune it up. __________________ Throwin mud is my game

10-05-2008, 03:00 PM	#4
dylan_133 Wannabe Elite Explorer Grants Pass, Oregon '91 explorer EB Join Date: Mar 2007 Posts: 81 Vehicle Specs (Original Poster)	yeah i have though about just doing the valve train, i want to do a rebuild becuase i get about 7 mpg and its mostly my transmission but i thoughthat if i get a new one which i plan on doi ng very soon and a rebuild for my engine it would get it back to the original mpg. __________________ Throwin mud is my game

10-04-2008, 07:23 PM	#2
Masterd Wannabe Elite Explorer Upland, CA 1993 Explorer Sport Join Date: Oct 2005 Posts: 765 Vehicle Specs	286k on mine? Any particular reason for the rebuild?

10-05-2008, 11:17 AM	#3
Texan01 312,000+ Dallas, TX 1995 Explorer XLT Join Date: Nov 2001 Posts: 729 Vehicle Specs	I'd run a compression test or leakdown test to see if the valves or rings are worn out. If you do a compression test and one cylinder is low then i'd think about rebuilding it. if they are all under 100 psi then it might be time for a rebuild. I've got 235k on mine and it's only problem is noisy valvetrain.