dakotawho

iTrader: (1)

Hey guys,

I'm just curious as if you all can give me some info on what exactly happened here. Its in the last cylinder that it occured. Also is it even possible to rebuild it after something like that, keep in mind i'm new to motors so all of this may just be dumb questions, but thats why its in newbie tech
Also i don't know if this would be needed but its a 22re in an auto and it isn't the jasper motor thats in my 90.

Sperry

Is the motor seized, can you turn it?

dakotawho

iTrader: (1)

I'm not sure, just saw it like this, you could test that by turning the bottom pulley? Correct?
Also would that be safe with it being tore down like it is in the last pic.

MudHippy

Looks like the cylinder ate its valves(for breakfast).

Rebuildable? Most likely...with enough time/money/parts.

Sperry

Turn the crank shaft pulley back and forth just a bit to see. You don't need to move it too much. If everything seems to move properly then it might be worth tearing it down to replace the piston(s). Check the FSM for all tolerances to be sure nothing is too far out of spec or damaged to rebuild.

dakotawho

iTrader: (1)

Haha MudHippy that made me laugh.

And Sperry what all should you check to be in spec?

250000_yota

Hippy, I don't think that's valves...it looks more like that cylinder ran wwwwwaaaaaaayyyyyyy lean/detonated/pinged forway too long. I've seen that kind of damage on diesels with bad injectors. Either they stick open, over fueling and thus over heating the piston, or they don't inject enough and melt it by over heating from being too lean.

dakotawho

iTrader: (1)

Well the details on this....Just driving down the road and boom this happened

Sperry

check anything easy first like things you don't need to diss-assemble....get a metal strait edge and feeler gauge, check the head for warpage, the block for flatness. Check the cylinder walls for ring ridge at the top, scratches, out-of-round, taper.....keep going with all the other components.......
.........or roll the dice and just find some cheap parts and slap it back together!

rworegon

What does the head look like for that cylinder?

dakotawho

iTrader: (1)

Yeah, I'd like to get the experience of rebuilding it, but trying to decide first if this is worth messing with.

dakotawho

iTrader: (1)

rworegon- Help me out, what exactly are you asking...noob at motors, but want to learn!

rworegon

Post up a pic of the head and valves at that cylinder so we can take a look. As MudHippy mentioned, the valve damage (if any) may give additional information.

Does the metal on the bad piston look melted or does it look fractured?

dakotawho

iTrader: (1)

Okay might, be a few days before i can get pics.... but if i'd have to say... i'd say melted

Which i'm assuming is real bad? because too much heat is not usually good.

rworegon

Was it pinging before this happened? If so, post 7 may be on target.

BamaYota1

Was your egr functioning?

dakotawho

iTrader: (1)

I'll be honest i have not a clue if anything was working right on the truck or if it was making any noise....I picked the truck up(like this) for the CLEAN(compared to most) body, figured worse come to worse just buy a motor to throw in.

snobdds

I was thinking this too. If the valve is no longer there then you know what happened and it did what mudhippy said. If still there, then I agree on the lean, pre-detonation theory.

wyoming9

iTrader: (1)

Yes it is a hard call to make my first thoughts were a injector stuck open flooding the cylinder with fuel.

Looking closer I thought maybe dropped valve.

The thing I would look at is if the cylinder has scoring to deep to clean up by boring to the max.

Then I would think the head would be junk but without seeing hard to know.

Terrys87

iTrader: (1)

If the block isnt damaged, it has the possibility of being rebuilt. Being a new guy to motors, have some one with some experience to check the damages with you as well. Cylinders look good from pics. Did it get pieces down in the crankshaft and rod area and cause further damages? If you do go a rebuild, go with http://www.engnbldr.com/

From my experience, the cost of replacing a motor is cheaper to buy one. If the head is damaged, that is a quick $250, a rebuild kit $300, machine work can add up a few hundered as well. Here is another option. http://www.unitedengine.com/index.ph...d=10&Itemid=55 I have used 2 of them before and they ran great. With taxes and shipping it cost less then $1100 when the motor is on special.

$1100 may sound like alot but in a worse case scenario, it can be cheap to what it can cost to do a rebuild and with this you get some warranty. When you do it yourself, you are the warranty. The blocks are cleaned and tested and alot of the tools you wont have and some machine shops charge for everything and it adds up. There is alot involved, honing, seating the valves, spring compressors, feeler guages... If you aren in any hurry and want to do a motor a little at a time as the funds permit, it is a great feeling knowing you brought a motor back from the dead and a good experience. I would allow a good month easily to do all the work,waiting on parts,tool rental, and having the time to get to it. This is from my experience others rebuild them quicker and others longer. Trying to show you both sides.