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Old 04-29-2006, 06:47 PM   #1 (permalink)
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USA Blown 4AFE

My daughter's 92 Corolla has a 4AFE engine. It threw a rod a few weeks ago, and I have been taking it apart as I have time.

The problem: I can't turn the engine to take the bolts out that fasten the flywheel to the torque converter.

Took the oil pan off, and #2 piston had exploded into a million pieces. #3 rod broke from the piston and is jammed between the crankshaft and the wall of the block.

Took the head off to hopefully get another angle, and slid the top end of #3 piston out. But, no luck on getting the rod free. The rod is bent and going nowhere.

I tried hammering the rod through one of the holes it made in the side of the block. Tried from the bottom of the block. Stuck!

Getting frustrated. Any suggestions?
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Old 04-30-2006, 12:31 AM   #2 (permalink)
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I can't visualize this. You have the engine out of the car, right? Are you taking it apart so you can salvage some parts? Is the base of the rod is still around the crankshaft? The rod jammed in such a way you can take the rod bearing cap off - or that wouldn't help? Would taking the main bearing caps off the crankshaft allow you to pry the crankshaft out? If not, then perhaps it's time to get out the demolition saw with a metal cutting blade and cut the rod up.
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Old 04-30-2006, 01:54 AM   #3 (permalink)
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Quote:
Originally Posted by okiesteve
My daughter's 92 Corolla has a 4AFE engine. It threw a rod a few weeks ago, and I have been taking it apart as I have time.

The problem: I can't turn the engine to take the bolts out that fasten the flywheel to the torque converter.

Took the oil pan off, and #2 piston had exploded into a million pieces. #3 rod broke from the piston and is jammed between the crankshaft and the wall of the block.

Took the head off to hopefully get another angle, and slid the top end of #3 piston out. But, no luck on getting the rod free. The rod is bent and going nowhere.

I tried hammering the rod through one of the holes it made in the side of the block. Tried from the bottom of the block. Stuck!

Getting frustrated. Any suggestions?

Repairing the block is not going to be cost effective. Might as well get a low mileage long block. What you have on your hand now is a boat anchor.
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Old 04-30-2006, 03:12 AM   #4 (permalink)
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Quote:
Originally Posted by gekishibu86
Repairing the block is not going to be cost effective. Might as well get a low mileage long block. What you have on your hand now is a boat anchor.
He isn't trying to repair the engine block (boat anchor), he just wants to get the engine loose from the transmission.

If you cannot turn the engine over in either direction, Get a Sabre saw with a metal cutting blade and cut the piston rod in half from the bottom side. This may take some effort. Or try pulling the engine and transmission out together where you have better access to work on it.

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Old 04-30-2006, 05:31 AM   #5 (permalink)
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Yep, the boat anchor is still in the car. And, pcgeek is right. The engine (door stop) is shot, and I plan to replace it.

I was avoiding having to pull the engine & transmission both from the car, but I may have to. And, once I get them both pulled, I still have the same problem.

I had thought of the Sawzall idea, but are there blades suitable for cutting engine parts?

Would it be feasible to remove the external bolts that connect the engine & bell housing and turn the whole engine? Don't know if I would have access to the flywheel.
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Old 04-30-2006, 10:41 AM   #6 (permalink)
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I haven't tried to cut auto parts with a sawzall but I think, with a metal cutting blade, it would cut a rod. The rods arent' the hardened, brittle type of metal. (They are not like masonry nails.) If they were hardened they would snap instead of bend.

The service manual say to remove the engine and transmission as a unit. The average engine stand won't hold the block with the transmission attached. So leaving the engine in the car is better than lying under an engine suspended from an engine hoist trying ot saw parts off of it. But I think if you remove the engine you could prop it on its side in some makeshift way in order to do the sawing.

As to turning the engine while it is in the engine compartment, I don't know if this would work.
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Old 04-30-2006, 10:11 PM   #7 (permalink)
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Hell Just pull em both together. Probably be a lot easier and the manual says to probably for a reason.

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Old 05-01-2006, 08:56 AM   #8 (permalink)
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Mine is a '91 and an automatic and I HAD to pull them together, the engine would not come out with the trans on it. I also threw a rod through the side of the block, but have a new shortblock in there from Japan I got off ebay...
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Old 05-01-2006, 11:43 AM   #9 (permalink)
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the torque converter will just slide out of the transmission, the problem will be to get the engine out with the torque converter on there...

my advice is to take them out togeather it can be done i did both on my 94 last summer and it worked well.

Then when its out you can slide the transmission off then deal with the torque converter!


BTW: how the heck did that happen, i can sorta see it, post some PICS
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Old 05-01-2006, 12:36 PM   #10 (permalink)
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USA

Quote:
Originally Posted by 94_Rolla_Guy
the torque converter will just slide out of the transmission, the problem will be to get the engine out with the torque converter on there...

my advice is to take them out togeather it can be done i did both on my 94 last summer and it worked well.

Then when its out you can slide the transmission off then deal with the torque converter!


BTW: how the heck did that happen, i can sorta see it, post some PICS
What is attached to the other side of the torque converter? Hate to tear up gears inside the transmission!

How did you support the transmission when sliding it off?

I'm at work now. I will post some photos later.
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Old 05-02-2006, 02:55 AM   #11 (permalink)
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Mate just take em out together and seperate..they slide apart sweet including the torqe verter..think off it as a clutch plate and throw the block..!

buy a good secondhand bottom end or a reco and away you go no headachs..
the blocks prob stuffed anyway..just a q. how did it let go anyway as that motor is pretty stong as a stock motor..
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Old 05-04-2006, 06:49 PM   #12 (permalink)
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Photos of blown engine.

http://www.cardomain.com/ride/2344223
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Old 05-04-2006, 07:40 PM   #13 (permalink)
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Now that is impressive! OK as a last ditch effort you could go ahead and remove the main bearing caps and rod caps (what is left of them) and just lift out the block leaving the crank. Once that is done you can get easy access to those flexplate nuts. Just make sure you support the crank so you don't FUBAR the Tourque Converter. But if the tranny is in decent shape you might want to go ahead and replace the TC for the heck of it.
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Old 05-06-2006, 05:43 AM   #14 (permalink)
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IM just a bit curious as i've never seen a blown rola motor befor..yer sure seen stuffed but that takes the cake for a stockie! what hapened? loved to know..please!!!

Also just a thought ...why not just drop the whole lot out of the car..eg
undo the sub frame bolts and it will come straight out and make it easy to work on with out damageing the car?..i say this because you obvously know hoe to use a spanner.
Wires are east to unplug and the front end will drop easy just jack up the shell and put some car stands under it(i've done it) and a lift jack under the engine trans and lower her down when all is right..slide it out.....
might save a head ache later, but i think you might be ther lol
all the best and good luck
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Old 05-06-2006, 04:05 PM   #15 (permalink)
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Unbolted engine from transmission, and tried to turn block. Dumb me, I still can't get access to the bolts on the flywheel. And, I'm having trouble getting the torque converter back into the case so I can reconnect the bolts.

So, now I guess I'll have to pull with transmission attached.

I have to remove the halfshafts from transmission, right? Is there a special tool to separate them from the transmisison/transaxle? I see instructions to use slide hammer and hub nut wrench to pull the halfshart.

By the time I'm finished, the whole car will be apart in my garage!
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