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View Full Version : I tore the 1MZ-FE for my celica down this weekend



Smaay
03-13-2012, 04:34 AM
This guide is for reference only. This is how I tore down the 1MZ-FE engine over the weekend. Here is the engine when I started. I mounted it on an engine stand and went to work.
http://www.celicatech.com/gallery/files/6/1/6/1mz_002.jpg
Here are a few shots so I can remember vacuum lines.
http://www.celicatech.com/gallery/files/6/1/6/1mz_003.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_004.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_005.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_006.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_007.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_008.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_009.jpg

I removed the power steering pump here. there are 2 bolts holding it to the block

http://www.celicatech.com/gallery/files/6/1/6/1mz_010.jpg

I took the engine cover off to show the VSVs and the fuel rails. It looks like some critter built a nest on the valve cover. There is another one on the back side of the head. I really wanted to slap the guy at the junkyard for telling me this is a good clean block.

http://www.celicatech.com/gallery/files/6/1/6/1mz_011.jpg

I unplugged the spark plug wires from the coils to the rear plugs

http://www.celicatech.com/gallery/files/6/1/6/1mz_012.jpg

These are the 2 spots there those wires are secured down. I just unclipped the clip and removed the 10mm bolt.

http://www.celicatech.com/gallery/files/6/1/6/1mz_013.jpg

Here you see the wires going back to the rear plugs. Using a needle nose pliers you squeeze the tabs together and the mount pops off. I also removed the 2 intake manifold support bars.

http://www.celicatech.com/gallery/files/6/1/6/1mz_014.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_015.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_016.jpg

Here I'm just making sure that I know where all the vacuum lines are going to the VSVs.

http://www.celicatech.com/gallery/files/6/1/6/1mz_017.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_018.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_019.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_020.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_021.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_022.jpg

Here I unplugged the 3 coils from the wiring harness and moved it out of the way.

http://www.celicatech.com/gallery/files/6/1/6/1mz_023.jpg

These next 2 pics are the wire going down to the oil pressure sensor and crank position sensor.

http://www.celicatech.com/gallery/files/6/1/6/1mz_024.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_025.jpg

Here I'm removing the passenger side engine mount.

http://www.celicatech.com/gallery/files/6/1/6/1mz_026.jpg

Here it looks like I just remove a harness ground from the intake manifold, you can also see on the left where I removed the EGR.

http://www.celicatech.com/gallery/files/6/1/6/1mz_027.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_028.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_029.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_030.jpg

To get to the back injector plugs I had to remove the intake manifold. With those last injectors unplugged I was able to remove the wiring harness.

http://www.celicatech.com/gallery/files/6/1/6/1mz_031.jpg

Next I started on the AC compressor. I removed the bolts holding it to the block and this bracket

http://www.celicatech.com/gallery/files/6/1/6/1mz_032.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_033.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_034.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_035.jpg

Here I removed the timing belt covers. Its held on by 10mm bolts. My heavy duty impact gun was able to break the crank pulley loose. Getting it off was another story. I had to build a makeshift gear puller to get it off.

http://www.celicatech.com/gallery/files/6/1/6/1mz_036.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_037.jpg

This is looking down on top of the block, Here I'm removing the lower runners of the intake manifold.

http://www.celicatech.com/gallery/files/6/1/6/1mz_038.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_039.jpg

Here you can see that weird bug nest.

http://www.celicatech.com/gallery/files/6/1/6/1mz_040.jpg

This is the lower intake manifold removed.

http://www.celicatech.com/gallery/files/6/1/6/1mz_041.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_042.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_043.jpg

Here is the right side of the engine, this is where the thermostat is hiding. The brass sensor is the water temp sensor

http://www.celicatech.com/gallery/files/6/1/6/1mz_044.jpg

Here I removed the hard water line and the thermostat.

http://www.celicatech.com/gallery/files/6/1/6/1mz_045.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_046.jpg

Here I removed the water filler hard pipe and the soft water hose. You can see the 2 knock sensors here.

http://www.celicatech.com/gallery/files/6/1/6/1mz_047.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_048.jpg

Finally got the crank pulley off.

http://www.celicatech.com/gallery/files/6/1/6/1mz_049.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_050.jpg

Stick a small allen wrench in the timing belt tensioner and remove the tensioner.

http://www.celicatech.com/gallery/files/6/1/6/1mz_051.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_052.jpg

Removed the timing belt. To get the black timing belt cover off you have to remove the cam gears. They are both the same gear except on the rear bank its on backwards. You can see the lip on the gear is swapped.

http://www.celicatech.com/gallery/files/6/1/6/1mz_053.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_054.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_055.jpg

To get the cam gears off, use a wrench on these ďgearsĒ on the cams to prevent them from rotating. Use a large breaker bar on the nut on the actual cam gear. The cam gear bolt is a 17mm.

http://www.celicatech.com/gallery/files/6/1/6/1mz_056.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_057.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_058.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_059.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_060.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_061.jpg

Here the cover is off, its also easier to get off the idler pulley mount off now.

http://www.celicatech.com/gallery/files/6/1/6/1mz_062.jpg

I removed the cams and kept the caps in order. I also marked the shims and buckets for their location. I used the naming convention of Front Intake 1 or Front Exhaust 1

http://www.celicatech.com/gallery/files/6/1/6/1mz_063.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_064.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_065.jpg

Here is a close up of the Rear bank. What I'm calling the front bank actually has an L in the casing.

http://www.celicatech.com/gallery/files/6/1/6/1mz_066.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_067.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_068.jpg

I removed the front head. The head bolts are 12mm 12pt bolts and there is a single allen head bolt too.

http://www.celicatech.com/gallery/files/6/1/6/1mz_069.jpg

Both heads removed

http://www.celicatech.com/gallery/files/6/1/6/1mz_070.jpg

The cylinder walls, it was so dirty in this engine. I'm so glad I'm doing this rebuild.

http://www.celicatech.com/gallery/files/6/1/6/1mz_071.jpg

I remove the AC mounting bracket on the block and the front engine mount.

http://www.celicatech.com/gallery/files/6/1/6/1mz_072.jpg

Remove the timing belt tensioner pulley. You can see the water pump on here too.

http://www.celicatech.com/gallery/files/6/1/6/1mz_073.jpg

Remove this exhaust thing. Water flows behind it, so I'm assuming its used to cool down the exhaust.

http://www.celicatech.com/gallery/files/6/1/6/1mz_074.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_075.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_076.jpg

Here the water pump is removed. It was actually looking good, but I'm still going to replace it.

http://www.celicatech.com/gallery/files/6/1/6/1mz_077.jpg

Looking down, next to remove is this water line block cover. I donít know what to call it.

http://www.celicatech.com/gallery/files/6/1/6/1mz_078.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_079.jpg

Once I got that thing off I flipped the engine over and removed the #2 oil pan.

http://www.celicatech.com/gallery/files/6/1/6/1mz_080.jpg

Remove the oil pickup.

http://www.celicatech.com/gallery/files/6/1/6/1mz_081.jpg

The # 1 oil pan is held on by 12mm bolts and a few 10mm bolts at the oil pump and rear main seal assembly.

http://www.celicatech.com/gallery/files/6/1/6/1mz_082.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_083.jpg

Rear main seal assembly removed.

http://www.celicatech.com/gallery/files/6/1/6/1mz_084.jpg

Oil pump removal.

http://www.celicatech.com/gallery/files/6/1/6/1mz_085.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_086.jpg

Here is the first rod and piston removed. The skirt on the sides of the piston looks good. I can tell you now that the 1MZ-FE rods look about the middle in strength between a 1ZZ-FE and 2ZZ-GE. They are smaller than a 5S-FE and 3S-GTE. Once I go through all my boxes, ill make a good comparison picture.

http://www.celicatech.com/gallery/files/6/1/6/1mz_087.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_088.jpg

There is a small dimple on the top of the piston to indicate forward. The rod also has a similar mark, here you can see it. Itís the tab right in the middle and bottom of this rod. The other side is just round.

http://www.celicatech.com/gallery/files/6/1/6/1mz_089.jpg

All the pistons and rods. Ill clean them up when I'm ready to re-assemble.

http://www.celicatech.com/gallery/files/6/1/6/1mz_090.jpg

Next is get the mains out. These are 6 bolt mains. There are 2 bolts on each side and there is also a single bolt on the sides of the block. It took me a minute to figure out what those were for.

http://www.celicatech.com/gallery/files/6/1/6/1mz_091.jpg

The mains are numbered so you cant mix them up. Looking at this main, the #2 thatís raised in an arrow pointing up is the actual number of the main. Not the number 2 stamped in the middle.

http://www.celicatech.com/gallery/files/6/1/6/1mz_092.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_093.jpg
Crankshaft out.
http://www.celicatech.com/gallery/files/6/1/6/1mz_094.jpg

Here you can see the iron inserts in the block. I think you can get away with a .020 overbore with these inserts. After that you will need something like a Darton sleeve. There is plenty of room between the cylinders for that.

http://www.celicatech.com/gallery/files/6/1/6/1mz_095.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_096.jpg

Here is everything on my tables. Lots of parts in there.

http://www.celicatech.com/gallery/files/6/1/6/1mz_097.jpg

http://www.celicatech.com/gallery/files/6/1/6/1mz_098.jpg

I didn't take pics of the head dis-assembly but when i built everything back, i will take good pictures. I promise :)

T-spoon
03-13-2012, 03:23 PM
I really don't think I want to work on a 1mz after looking at this. BTW, we always called those clay nest making bugs "Mud dobbers". When I took my 7M out I had two nests in very hard to reach places.

KoreanJoey
03-15-2012, 05:51 AM
The EGR makes doing spark plugs in a car a biatch...