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Thread: Top End Rebuild

  1. #16
    Baja
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    I remember a few years ago reading about a Colorado guy doing a rebuild and looking into how they remove the cylinder sleeves for when he was doing a rebuild I guess they were fine and he just honed them and moved on.
    Current:

    2006 Red H3 Adventure/ luxury- 37" iroks, HD tierods, steering rack kit, custom front IFS HP Dana 44 diff with Yukon zip locker, Np241 manual T-case, 6.0L VVT/ 6L90 swap

    2006 Black H3 Adventure/ Luxury 5 speed manual- HD diff bushings 37" Centennial Trail hogs

    2008 Black H3 Alpha- HD tierods, steering rack kit, Custom HD lower control arm bushing kit, custom front IFS HP Dana 44 diff with truetrac

    2007 Black H3 Luxury- 1.25" bodylift, elocker, 4:1 t-case, steering rack kit, custom front IFS HP Dana 50 diff with truetrac, 37" bfg km2, H3x 18" wheels

    2009 Black H3T base

    2008 White H3 Adventure

    I think we might have too many of these things now...

  2. #17
    Hamster that pokes Bears
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    Donít waist your time on top end, 5 cyl life expectancy ~125/140 mil

    5 cylinder is not produced anymore

    Rebuilt whole thing and be done with it
    Longer u wait more ware will be there and more $ to rebuild
    I rebuilt one this summer ~2.5 k and 2.5 labor.
    Ended up with ~6 k due to spun bearing and more internal damage ~125k on truck


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    2009 H3t (Hamster Jr.)build - http://www.hummer4x4offroad.com/foru...009-H3t)-build
    2009 H3t Alpha
    HMBP (2000 GMC) build (sold) - http://www.hummer4x4offroad.com/foru...s-quot-project
    2008 F350 (Behimot) build - http://www.hummer4x4offroad.com/forum/showthread.php?2208-Project-quot-Behemoth-quot
    1995 YJ locked and loaded
    2017 JK "Spicy chicken" + personal touches.

  3. #18
    All Terrain
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    The I5 routinely goes 250k+ if proper maintenance is kept.

    I would never pay 6k to have an I5 motor rebuilt, plenty of low mile engines on ebay to have shipped in or I would just buy another H3.
    06 H3 Adv - Great, another project.
    09 H3T Alpha/Adv- Sold

  4. #19
    Low Profile
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    Quote Originally Posted by Traxx View Post
    The I5 routinely goes 250k+ if proper maintenance is kept.

    I would never pay 6k to have an I5 motor rebuilt, plenty of low mile engines on ebay to have shipped in or I would just buy another H3.
    Depending on my life situation when my I-5 croaks, I may spring for a v-8 swap. Almost 2/3 of the way there at 6k.

    Iíll probably rip an I-5 out of a Colorado, if theyíre still abundant by the time I need one.

  5. #20
    Street Tire
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    There are varying degrees of "rebuildness" depending on how far a guy wants to go. Nobody can say until it's taken apart and inspected. Could be cylinders look great and perhaps a good honing is all they need. Clean the pistons and other parts. Or even new pistons if need be. Measure the crank and cam. It's entirely possible the crank is serviceable, cam's probably not, but who knows? Let's say new cams, moderate head work, valve job, etc, a guy could be into it for significantly less. Depends if yer doing it for fun or paying a rebuilder too. Maybe at that point it's not 100% 'new', but maybe 90% at half the cost. Things could go the other way too if most of the parts are too worn.

    But then you have to look at the rest of the vehicle and at that point how much wear is the rest of the drivetrain going to have ...would it go another 200k miles w/o major and costly upkeep? It's a good question. Hard to say. Possibly. Maybe now is the time to stock up on another 120k mile rig while you can still find one!!! Ha ha..

    Like others say, a used engine is a definite idea too.
    Last edited by Jeepwalker; 10-22-2019 at 04:53 PM.
    Jeepwalker

    '07 H3 Advent/Lux
    Jeep XJ, ZJ, WJ
    Ram & GMC 4x4's
    Toyota Hilux

  6. #21
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    Thanks for all the info...due to health restrictions right now I'll have the guys down the road check for any vacuum leaksand go from there...I'll keep an eye out for some possible engine swaps if it comes to it...its a great rig...never failed me...wife got it for me when I retired from the military...

  7. #22
    Street Tire
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    Quote Originally Posted by Odimus View Post
    Thanks for all the info...due to health restrictions right now I'll have the guys down the road check for any vacuum leaksand go from there...I'll keep an eye out for some possible engine swaps if it comes to it...its a great rig...never failed me...wife got it for me when I retired from the military...
    I've got an F150 that can haul *** and a lot of ****, but I still love taking the H3 out, especially in late spring through summer when I can throw the tube doors on. When the I5 goes belly up, I'm hoping funds and life allows me to put in an LS3 and SAS/OD Dana44 (wink), that would make this rig perfect!
    2006 H3 3.5L I5 Adventure / Luxury / De-chromed / Torsion lift / 35" Goodyear Wrangler Duratracs / Bilstein 5100 shocks / Schwarttzy Skid Plates and High Clearance Leaf Spring Plates / Warrior rear shackles / Solid Axle GM Corporate 10 Bolt rear diff cover / 1" Daystar body lift / Custom Tube Doors x4 / AirDoc / AFE dry filter / OD Steering Rack Reinforcement Kit, Differential bushing kit, and Heavy Duty Tie-Rods / PCM of NC tune / Long Tru-Cool LPD trans cooler and thermal by pass / Snorkel


 

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