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General Forums => The Mess Hall => Topic started by: scjeep on September 29, 2010, 07:07:36 AM

Title: how much should you pay for a 4banger
Post by: scjeep on September 29, 2010, 07:07:36 AM
Looking for a "newer" motor for my yj  whats the ball park for a used motor, how much to get mine rebuilt and how much to buy a rebuilt
Title: Re: how much should you pay for a 4banger
Post by: stan98tj on September 29, 2010, 08:27:57 AM
if i remember correctly, mine was about $1100. got it from a place in seattle. i can look for the paperwork and get u an exact price and name of business if you want.
Title: Re: how much should you pay for a 4banger
Post by: sharpxmen on September 29, 2010, 09:05:20 AM
used motor $100 to $300, i wouldn't pay more for one

to rebuild (prices are approximate but to give you an idea)

parts
$150 pistons and rings
$80 main bearings and connecting rod bearings
$40 hydraulic lifters
$55 timing set (sprockets, chain, tensioner and guide)
$25 pushrods
$50 rocker arms, pivots and bridges (optional but i would do it)
$80 full gasket set (including front/rear crank seals and valve stem seals + all gaskets to assemble the engine)

machining costs
$150 for rebuilding the head
$100 cylinder boring and honing
$150 crank grinding and micropolishing

you could add Cam bearings to this as well, depending on the mileage you might have to replace them or not ($25 or so). Same for the oil pump, it's about $50 for a new one. Water pump will take you another $35, and i would replace the thermostat even if it's good for peace of mind (another $10). you'll also need some good black RTV ($10 or so). Depending on the status of your freeze plugs (expansion plugs) you might need to replace those as well, add another $10 or so for that (use steel ones if your rad is aluminum).

like i said, approximate costs but to give you an idea comes to about $850 on the low to about $1000 on the high for the hole thing if you take it apart and assemble it yourself.
Title: Re: how much should you pay for a 4banger
Post by: scjeep on September 29, 2010, 11:25:52 AM
thanks sharpxmen , for the detailed response  :beers:. looks like im gunna look for a used one
Title: Re: how much should you pay for a 4banger
Post by: sharpxmen on September 29, 2010, 01:58:17 PM
on a budget you can also find a used one and replace the piston rings (and remove the glaze on the cylinders with a slight honing) and while at it check the main and conn rod bearings - you could get that done for about $300 tops + the cost of the engine given that the crank is withing specs.
Title: Re: how much should you pay for a 4banger
Post by: Jeffy on September 29, 2010, 04:50:24 PM
For around $900-1000, you could probably get a complete 4.3L V6 drivetrain and drop it in as well.
Title: Re: how much should you pay for a 4banger
Post by: sharpxmen on September 29, 2010, 05:08:01 PM
For around $900-1000, you could probably get a complete 4.3L V6 drivetrain and drop it in as well.

correct but there is some additional cost to have everything working though as opposed to drop-in but that's a good point, might as well get an upgrade while at it.
Title: Re: how much should you pay for a 4banger
Post by: cab on October 08, 2010, 10:16:13 AM
 where are you located sc? i just pulled mine yesterday to do a 350 swap.  it was running fine just not enough ponies for me and i found 3k under my couch cushion.  im in MS. maybe we could work something out.