I broke it... Chunky Monkey everywhere!

[OldFaurt]

Well,
Looks like I had a piston failure.
The pin mount came apart and I am thinking the piston seized in the bore.
I pulled the oil pan... coffee with cream,
DAMN water in the oil, I am hating this more and more.
got the pan off, thank God for lift kits, it's nice to slide under with out a jack and the pan misses
the axle well enough to get it past the oil pump and pick up.
Damn it all again... Chunky monkey laying in the bottom of the pan.
9232
Bits of skirt, pivot section, steel reinforcement, crap. Yup that piston is hosed.
wiggled all the rods til I found the booger, tink tink, that's the one.
9233
Got the flash light and had a look. pin is still in the rod, and there is big grooves in the wall.
I think I may have also blown a head gasket and loaded the cylinder with coolant at speed
and broke the piston. The Rod itself looks pretty good.
9234
Main rod bearing has copper on the compression half and
Anybody have a spare 53008405 (1991 - 1995) series rebuild able block laying around?
I might be able to bore out the grooves, but I am not sure that would make the best fix.
Also, until I pull the head and see if it was a blown head gasket the drowned the motor
All bets are off. if that didn't drain the pool then the block is going to scrap!.
I know, I could sleeve it but again, not my favourite thing to do.

[Mudderoy]

Well,
Looks like I had a piston failure.
The pin mount came apart and I am thinking the piston seized in the bore.
I pulled the oil pan... coffee with cream,
DAMN water in the oil, I am hating this more and more.
got the pan off, thank God for lift kits, it's nice to slide under with out a jack and the pan misses
the axle well enough to get it past the oil pump and pick up.
Damn it all again... Chunky monkey laying in the bottom of the pan.
9232
Bits of skirt, pivot section, steel reinforcement, crap. Yup that piston is hosed.
wiggled all the rods til I found the booger, tink tink, that's the one.
9233
Got the flash light and had a look. pin is still in the rod, and there is big grooves in the wall.
I think I may have also blown a head gasket and loaded the cylinder with coolant at speed
and broke the piston. The Rod itself looks pretty good.
9234
Main rod bearing has copper on the compression half and
Anybody have a spare 53008405 (1991 - 1995) series rebuild able block laying around?
I might be able to bore out the grooves, but I am not sure that would make the best fix.
Also, until I pull the head and see if it was a blown head gasket the drowned the motor
All bets are off. if that didn't drain the pool then the block is going to scrap!.
I know, I could sleeve it but again, not my favourite thing to do.


If you remember the story of Kermit, matchframe had a 97+ engine, running for sale down in Clear Lake. If I had had a place to keep it I would have bought it myself. It's out of the wrecked XJ he purchased to repair Kermit.

[OldFaurt]

I am thinking that I might have a compromised oil path.
I am going to do the full autopsy on the motor, then have it
Cremated... so they can make more nice pretty Jeep parts!
The ROD bearing is a standard size, That's cool, If there is no damage on it
I can have it cleaned, inspected and reuse it on the next motor.
Need to pull a main bearing cap and have a look...
Be right back with a picture or 2...
Or not... battery went dead on camera, will get them later.
Main bearings have light scratching and a dull appearance.
Look like a short oil starvation at some point.

[OldFaurt]

If you remember the story of Kermit, matchframe had a 97+ engine, running for sale down in Clear Lake. If I had had a place to keep it I would have bought it myself. It's out of the wrecked XJ he purchased to repair Kermit.

Is there any serious differences between a 97 and a 92? I have never
put together any information on block differences, guess I will have to get on that!
Thanks!

[Mudderoy]

Is there any serious differences between a 97 and a 92? I have never
put together any information on block differences, guess I will have to get on that!
Thanks!

I've been told they are all the same. Difference would be ECM and sensors. You would just use your ECM and sensors (intake, etc...)

[Carves]

awww bugger ..

Dont envy you and the work ahead.


Remember the camera batteries ... so we can have autopsy pics .. ;);)

[OldFaurt]

awww bugger ..

Dont envy you and the work ahead.


Remember the camera batteries ... so we can have autopsy pics .. ;);)

I will, I promise!
I got this Jeep with supposedly over 300,000 miles on it.
Since I got it, I have added another 30,000 + a year since January, 2013.
So about 70,000.
I changed the engine oil every month,
Transmission twice a year,
Front and rear axles once a year.

Both rod and Main bearings have STD.
on them. find that a bit hard to believe.

But also when I got it there was a fair amount of sludge in the top end.
It will be interesting to see what else I find!

[4.3LXJ]

Sorry to hear that. I do have a rebuildable engine here out of a 92, was running when pulled, but getting tired. Yours free you pay shipping

[Pookapotamus]

Boo! That sucks! Let us know what the autopsy reveals.


Having 4WD means getting stuck in more inaccessible places!

[OldFaurt]

Well, the piston is??? Screwed?
9284

The block is... Well that crack is not too bad... Yeah, Sucks
9285

But hey, the rest look ok? Right?
9286

I could have it sleeved, but if I can find a good rebuildable short block,
that would be better! That kind man in Chico, "4.3LXJ" offered up one all I have to do is ship it.
Anyone know of a good, CHEAP shipper?
The people on this list give me hope for humanity!

I also have a 2006 BMW K1200LT with minor cosmetic damage, with a very nice matching Unigo Trailer
I would trade for a drivable later model XJ 4X4. Just saying..

[bruggz351]

Oh. [emoji15]

Sent from my HTC_0PJA10 using Tapatalk

[4.3LXJ]

Yup, looks like some work in your future. Too bad about that crack

[cantab27]

tuff brake man........nice to see the offers ......and thanks for the pics

[bluedragon436]

Sucks to see that kind of damage.. Hopefully can get her back on the road quickly....

[Mudderoy]

http://houston.craigslist.org/pts/5567630831.html

http://houston.craigslist.org/pts/5558977447.html

http://houston.craigslist.org/pts/5492745619.html

http://houston.craigslist.org/pts/5525031266.html <== $300 In Katy

[OldFaurt]

Yeah!
I picked up a nice little 1997 engine with everything on it.
Was told it had 130,000 miles and ran very well when pulled. I hope that is true!
Picked up a 1 ton Engine hoist so I would not kill myself.
So, next weekend I will be dropping it in. I am going to have a look at the engine
while I wait, to see to it there is no issues to deal with.

Now I have some spare parts and a block to take to scrap yard...
I suppose I could sleeve the bashed cylinder and build a spare engine... I don't know.
Will have a look at it when I get it out of the XJ.

Pictures coming soon as, we all know,

No pictures?

Didn't happen!

[4.3LXJ]

OK, so where are these pics you mention? :D

[OldFaurt]

Well, started going through the new-ish motor and so far so good! Turning it over by wrench shows about half again the compression the old, 300,000 motor had, I need to pull the pan, check the bearings, oil pump, etc... So far everything is looking very good though. This is going to be one exciting weekend, culminating in driving my Jeep I hope!
Wish me luck guys... I love the smell of grease in the morning... it smells like... Victory!
Napalm stinks!

[4.3LXJ]

Best of luck Bob. This stuff always takes me longer than I think :D

[abebehrmann]

Best of luck Bob. This stuff always takes me longer than I think :D

Ain't that the truth! Reminds of something I read once, "A carelessly planned project will take three times longer than expected; a carefully planned project will only take twice as long."

hahahaha!

[4.3LXJ]

I guess I have never had a carefully planned project then :D

[prerunner1982]

Let me know how it goes and any troubles you run into. I will be dropping a 97 engine into my 93 in the future..

[denverd1]

did you get the ECM??

sucks on your block. when you broke it, you did it right!

[OldFaurt]

OK, so where are these pics you mention? :D
9766

There you go, Transferring stuff from one to the other so it works ok with my ECU.
So far, the Injector rail, throttle body, AC compressor, blah blah blah...
Also pulled the oil pan and pulled some bearing caps, looked pretty good!
Thought oh, should have taken pictures only after torquing it all down and finished
putting the oil pan back on. But other wise, looked pretty good! Tomorrow I put it in,
I got new motor mounts as the old ones were scrap! When I checked out the Distributor
that came with the engine, it was warn enough for the interrupter to strike the magnetic pickup. But that’s OK, as I want to use mine, I rebuilt it a while back and it works flawlessly.
I am going to wait to put it in as I want to prime the engine with the oil pump first.
Make sure I get good pressure and flows where it goes.

Old engine, 3/4 inch play in timing chain, Guess I should have replaced that, but hey
after 300,000 miles on that engine, and I was not taking care of it,
It was just waiting for me to find a good engine anyway. It ran well and gave 18mpg right up to the moment it stopped! Those 4L I-6 engines are damn good engines!
This one will be pampered and get the maintenance the other had not! Wonder what it will be like with an engine with real power? I'll break something!

[OldFaurt]

Let me know how it goes and any troubles you run into. I will be dropping a 97 engine into my 93 in the future..
Only issue I have found so far, is the head is not drilled in the back for the Temp Meter sensor. Nice thing though, The 97 has all the extra block ribs and such to make it quieter and less vibration. should be very smooth! Also noticed the crank cap stiffener bolted across all the main bearing caps! Will snap a picture for you tomorrow!

[denverd1]

Built like tanks ain't they? Good to hear the swap went smoothly.

Looking forward to pics of those mains and their support.

Sent from my SAMSUNG-SM-G930A using Tapatalk

[OldFaurt]

Well drove around a little bit today to see what would fall off,
Only thing is the Upper radiator hose, the clamp I used broke.
That and the alternator was not charging. both very easy to fix.
Hose got a new clamp, Alternator needed a little contact work
at the alternator power wire to the fuse box. there is a large
1 pin connector 1/3 the way to the alternator and it was
oxidised and funky, so I cleaned it up and contact greased it
No I get a good solid 14V charge! now to get a new Temp sensor
and find a place to put it! Since I now have a spare thermostat
cover I was thinking of taping it to take the sensor., 1997 Engine
does not have the hole drilled in the head on the rear driver side.
Also noticed my fan clutch has little difference in drag when hot
or cold. Will have to look into that stuff...

Next post, I will go over what was different, the intake manifold
has a different mount for the Power steering pump as an example...

Good night!

[OldFaurt]

OK,
Update!
The AC works fantastic!
The Shimmy shimmy coco wobble is no more after put a on a new steering damper from Autozone, $29.
Held the one I had in there before by one end and the other hit the floor... Literally Broke in half.
It would seem, the piston and shaft broke it off a while back... Huh!

Engine runs great, the 97 engine is a LOT quieter than the 92, no lifter noise, no start up piston slap...
And the newly re-located temp sender... from the head to the thermostat housing I drilled and tapped & a 1/4 MIP to 1/8 FIP and a $12 Temp sender from, you guessed it, Autozone... It's 2 blocks away.
The gauge now reads 200'-210' operating 65 down free-way, 210'-212' with AC and a touch more parked with AC going full tilt! I have pictures of the Modified Thermostat housing, and may adapt the spare I have now after more testing of the new version I created. It's $20 in parts, a 1/4 NPT tap, Comes in a $14 set from Harbour freight and a 7/16 drill bit! pretty easy, just go slow and careful!
Gosh it is great to drive the Jeep again!

Accept for the Power steering / Intake manifold interface, everything else worked just fine with the 97 dropped into the 92. Now if I can just get the rearend to stop grumbling...

[4.3LXJ]

:congrats:

[OldFaurt]

What I am wondering is why nobody ever comments on how the Temp sender in the back of the block is RIGHT ON TOP OF THE HOTTEST CYLINDER AND 1/2" ABOVE IT'S EXHAUST PORT?
The new location in the Thermostat housing is lot More dynamic, Water flow to the heater is from the moment you start the motor and it is an average of ALL the cylinders not just the one farthest away from the Big chill in front! I need more time with it, but so far it is nice to have a gradual near immediate temp indication.

The fitments of the motor mounts and all the rest of the hardware were all the same as my old engine.
The Intake was the only difference and having the Power steering pump from the new engine, made it no issue!

Have a great Sunday everybody!

[4.3LXJ]

I agree Bob. I have commented on the same thing concerning the temp sensor

[OldFaurt]

I agree Bob. I have commented on the same thing concerning the temp sensor

After driving around for a month, The new location shows VERY consistent readings.
Once I got all the bubbles out it runs at 205 W/O AC, 210-215 W/ AC.

I will snap a quick pic and add it to this thread later today.

[Mudderoy]

After driving around for a month, The new location shows VERY consistent readings.
Once I got all the bubbles out it runs at 205 W/O AC, 210-215 W/ AC.

I will snap a quick pic and add it to this thread later today.

Thanks for the update, I've been wondering how it going.