gutless wonder
somethings wrong with this truck... missing something
sits a little funny. LOL
lost a 20" wheel?
well, that lightweight part of a truck totally was more than the OEM 1981 4.2L jeep motor could handle. I'm coming to think that the motor has either 228k on it or an ABUSIVE 128k.
went to redding on sat to grab yel truck, sell a part i didn't need(and met a really cool bunch of guys!), and help sis with her honda.
going up a long shallow onramp-i couldn't hit over 25mph(shoulda been 40-50 in that space). WONDERFUL =/
my 52 gmc with WORE OUT 250 inline 6 had more power towing. =( yes I miss it, yes I'm glad i now have 4x4.
been RARELY hearing a thump from internals of motor. this trip did it in. i think i was realizing about half of the rated 110hp... we were unloading the yel truck at the boneyard at dark o-clock and the 4x in fulltime 4x4 didn't have enough power to pull the trailer from under the yel truck.
Wife pushed with hands and it moved...
i couldn't even get the motor to spin the tires in the damp grass. worthless! putting it in 4x4LO helped a tremendous amount. I left it idling while i moved, adjusted, moved adjusted... and it started knocking SOOO BAD!
Wife started calculating in her head how long it would take to walk home if engine developed a new "window". read the service manual and in the troubleshooting section every noise described is present indicating failures in rod, main bearings, maybe piston pins, certainly valvetrain...
now-I'm done.
stock 1981 4.2L is 110hp/195tq brand new stock
stock 1989 4.0L is 177hp/235tq brand new stock
stock 1991 HO 4.0L sim but head flows better.
combine various parts from each and add a set of pistons and you get a 4.5L or 4.6L depending on various things....
=over 260hp and at or over 300 pounds of torque
donor 1989 4.0 with 283k miles. runs. add cash, time, and parts. now all I need is the cash.
sits a little funny. LOL
lost a 20" wheel?
well, that lightweight part of a truck totally was more than the OEM 1981 4.2L jeep motor could handle. I'm coming to think that the motor has either 228k on it or an ABUSIVE 128k.
went to redding on sat to grab yel truck, sell a part i didn't need(and met a really cool bunch of guys!), and help sis with her honda.
going up a long shallow onramp-i couldn't hit over 25mph(shoulda been 40-50 in that space). WONDERFUL =/
my 52 gmc with WORE OUT 250 inline 6 had more power towing. =( yes I miss it, yes I'm glad i now have 4x4.
been RARELY hearing a thump from internals of motor. this trip did it in. i think i was realizing about half of the rated 110hp... we were unloading the yel truck at the boneyard at dark o-clock and the 4x in fulltime 4x4 didn't have enough power to pull the trailer from under the yel truck.
Wife pushed with hands and it moved...
i couldn't even get the motor to spin the tires in the damp grass. worthless! putting it in 4x4LO helped a tremendous amount. I left it idling while i moved, adjusted, moved adjusted... and it started knocking SOOO BAD!
Wife started calculating in her head how long it would take to walk home if engine developed a new "window". read the service manual and in the troubleshooting section every noise described is present indicating failures in rod, main bearings, maybe piston pins, certainly valvetrain...
now-I'm done.
stock 1981 4.2L is 110hp/195tq brand new stock
stock 1989 4.0L is 177hp/235tq brand new stock
stock 1991 HO 4.0L sim but head flows better.
combine various parts from each and add a set of pistons and you get a 4.5L or 4.6L depending on various things....
=over 260hp and at or over 300 pounds of torque
donor 1989 4.0 with 283k miles. runs. add cash, time, and parts. now all I need is the cash.
posted by ccpanel at 10:25 PM
1 Comments:
Ooooh, go for the stroker. Check out http://www.angelfire.com/my/fan/stroker.html and http://www.jeep4.0performance.4mg.com/stroker.html
Also, the NAXJA and CherokeeTalk forums have some good info. It's a very popular way to rebuild the 4.0 engines, and there are tons of them out there. Search Google and you'll get more information than you can possibly read.
Post a Comment
<< Home