Todays teardown subject is a 2.4L KA24DE out of a 1995 Nissan 240sx with 230k miles. This engine is out of a parts car I purchased very wrecked at the salvage auction. Since the car was wrecked, I figured the engine would be good but CLEARLY, that wasn't the case. We dismantled the car and sold everything from the car we could, and I saved the engine for a teardown video to see why it was so bad. This engine nearly broke me! I haven't had such a simple engine take so much effort to come apart. The KA24DE was the only engine offered from 19911998 in the 240sx, it was also available in the Altima and Frontier/Xterra. This version was rated 155hp and 160tq, but that was not enough as 100% of 240sx's that still exist today have engines from different cars that make substantially more.

Why am I doing this? My name is Eric and I own Importapart. A full service auto dismantler. Part of our model includes dismantling blown up, failed and otherwise bad engines to salvage the good parts. We do not rebuild engines, merely supply parts to those who do!
TO BUY PARTS, visit www.Importapart.com OR email us at [email protected]
Every week I post at least one teardown video as I have over the last 3.5 years. Here are a few of my favorite videos from the past:
JDM SR20DET 200sx Teardoiwn    • JDM Nissan Silvia SR20DET BAD ENGINE ...  
Honda S2000 F20C1 Dies at HIGH rpm    • Honda S2000 F20C1 Catastrophic Engine...  
BMW/Toyota B58 BROKEN BAD    • BMW 340i B58 Blown Engine Teardown! H...  
Subaru WRX FA20DIT Teardown    • TOTAL TRASH! Subaru WRX FA20DIT Faile...  

00:00 Intro
02:28 Pulling the spark plugs, signs of trouble already!
04:14 EGR Pipe removal, hopefully it comes off in one piece! RUSTY!
05:15 Removing the exhaust manifold heat shield, manifold with EGR Pipe
06:31 intake manifold removal. Trying to get this off in one piece!
09:35 First look at the intake ports, NOT GOOD
10:00 Unbolting the valve cover and checking out the valve train condition
11:05 Removing upper timing cover
12:23 Removing fan clutch, pulley and finally the water pump, YUCK
13:40 Harmonic balancer removal
14;29 unbolting the lower timing cover
15:34 trying to remove the secondary timing chain, cam gears, tensioner
16:35 Camming the cam craps loose.
17:36 Inspecting the cam journals, camshafts, and cam caps
19:32 Cracking the head bolts off
20:10 Pulling the cylinder head off of the block. WOWZA THATS BAD!
21:50 The culprit?
23:19 Science
23:48 Unbolting and removing the oil pan.... and its bad
24:54 Lower timing cover literally FALLS off, almost literally
25:25 RUST ABATEMENT EXPERIMENT
27:54 The results of said experiment, amazing!
28:36 Trying to turn the short block over, HA, NOPE
29:50 unbolting all of the main cap bolts and removing the girdle
30:14 First close up of the rotating assembly and its ROUGH
30:45 Trying to unbolt the rod caps
32:05 Things deteriorate quickly, this engine is JUNKKKKKKKKK
33:06 Peptalk, don't do this to your engine
34:23 Bottom end fight round 1
36:23 with almost all of the bolts out, will it turn over? WISHFUL THINKING
37:40 Bottom end barrage round 2
39:56 THE CRANK IS OUT, THE ENGINE IS STILL BAD
40:50 Precision Piston Positioning
42:17 MACHINIST
43:49 The first rod is now born, I mean, out of the bore
44:22 FIRE IN THE HOLE! #2 is OUT
46:35 FIRE IN THE HOLE #4
47:16 THE FINAL PISTON GETS EVICTED
47:38 Full rotating assembly inspection, crank rods, pistons, bearings, block.
50:58 Summary

I really hope you enjoyed this teardown. As always I love all of the comments, feedback and even the criticism. Catch you on the next one!

Eric