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How-To: Change the Oil Cooler Seals

20839 Views 35 Replies 10 Participants Last post by  hapvlz
I am making this thread from information found elsewhere in the forum and some YouTube videos. I did not create or perform any of these items. Because of the research I had to do to answer someone else's question, I figured why not put it where all will find it.

From a post by @MyShibbyEco in Engine oil cooler replacement? (videos to follow):


Here are the steps in my service manual for a 1.4L LUH or LUJ engine.

REMOVAL

1) Disconnect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
2) Drain engine coolant. Refer to Cooling System Draining and Filling
3) Remove the turbocharger oil feed pipe. Refer to Turbocharger Oil Feed Pipe Replacement .
4) Remove the warm up three way catalytic converter. Refer to Warm Up Three-Way Catalytic Converter Replacement .
5) Lower vehicle.
6) Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
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7) Remove the oil cooler outlet hose clamp (2).
8) Remove the oil cooler outlet hose (3) from the thermostat housing (1).
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9) Remove the turbocharger coolant return pipe bolt (1) from the oil cooler housing.
10) Remove the turbocharger coolant return pipe clamp (2).

Note: Do not move the turbocharger coolant return pipe too much. An excessive moving of the turbocharger coolant return pipe could cause leakage.

11) Remove the turbocharger coolant return pipe (3) from the oil cooler inlet pipe.
12) Disconnect the oil pressure indicator switch wiring harness plug.
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13) Remove the oil cooler inlet hose clamp (1) and remove the oil cooler inlet hose from the water outlet.
14) Remove the engine oil cooler bolt (5).
15) Remove the engine oil cooler inlet pipe bolt (4).
16) Remove the engine oil cooler inlet pipe (2) and the seal ring (3).
17) Raise vehicle.
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18) Remove the oil cooler outlet pipe bolt (1) from the engine block.
19) Remove the oil cooler outlet pipe (2) in compound with the oil cooler outlet hose.
20) Lower vehicle.
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21) Remove the 2 oil cooler bolts (1).
22) Raise vehicle.
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23) Remove the oil cooler (1) in compound with the oil cooler gasket (2) and the seal ring (3).
24) Remove the oil pressure indicator switch from the oil cooler.

INSTALLATION

1) Install the oil pressure indicator switch to the oil cooler. Use a NEW seal ring.

Caution: Refer to Fastener Caution in the Preface section.

2) Tighten the oil pressure indicator switch to 20 N·m (15 lb ft).
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3) Clean the sealing surfaces.
4) Install the oil cooler (1) in compound with a NEW oil cooler gasket (2) and a NEW seal ring (3).
5) Lower vehicle.
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6) Install the 2 oil cooler bolts (1) and hand tighten.
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7) Install the engine oil cooler inlet pipe (2) in compound with a NEW seal ring (3).
8) Install the oil cooler inlet hose to the water outlet and install the oil cooler inlet hose clamp (1).
9) Install the engine oil cooler bolt (5).
10) Install the engine oil cooler inlet pipe bolt (4) and tighten to 10 N·m (89 lb in).
11) Tighten the 3 engine oil cooler bolts to 20 N·m (15 lb ft).
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12) Install the turbocharger coolant return pipe (3) to the oil cooler inlet pipe.
13) Install the turbocharger coolant return pipe clamp (2).
14) Install turbocharger coolant return pipe bolt (1) and tighten to 10 N·m (89 lb in).
15) Connect the oil pressure indicator switch wiring harness plug.
16) Raise vehicle.
2371625.png2371623.png
17) Install the oil cooler outlet pipe (2) in compound with the oil cooler outlet hose to the oil cooler.
18) Install the oil cooler outlet pipe bolt (1) to the engine block and tighten to 10 N·m (89 lb in).
19) Install the warm up three way catalytic converter. Refer to Warm Up Three-Way Catalytic Converter Replacement .
20) Install the oil cooler outlet hose (3) to the thermostat housing (1).
21) Install the oil cooler outlet hose clamp (2).
22) Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
23) Install the turbocharger oil feed pipe and the exhaust manifold heat shield. Refer to Turbocharger Oil Feed Pipe Replacement .
24) Connect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
25) Fill engine coolant. Refer to Cooling System Draining and Filling .

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Plan on attempting this soon, mine is still seeping.

Part numbers for seals are:

55565385
55568536
55568539


Not sure if I will remove the manifold and turbo or not. Seems it can be done without doing so, but I just don't know. All the videos show removing it.
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The deed is done, what a bi#[email protected] Just remove the turbo, you end up saving time. Also, lost a lot more oil than I expected. It doesn't come out easily or at all without doing so. The green orings on the turbo oil line are ripped and seeping now, not sure how, its a relatively new part, anyway other than that it seems all ok now. I'm embarrassed to say how long it took me.

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The deed is done, what a bi#[email protected] Just remove the turbo, you end up saving time. Also, lost a lot more oil than I expected. It doesn't come out easily or at all without doing so. The green orings on the turbo oil line are ripped and seeping now, not sure how, its a relatively new part, anyway other than that it seems all ok now. I'm embarrassed to say how long it took me.
Plan on writing a how to? With Tips!
The deed is done, what a bi#[email protected] Just remove the turbo, you end up saving time. Also, lost a lot more oil than I expected. It doesn't come out easily or at all without doing so. The green orings on the turbo oil line are ripped and seeping now, not sure how, its a relatively new part, anyway other than that it seems all ok now. I'm embarrassed to say how long it took me.

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Don’t worry . It would probably take me just as long .
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The deed is done, what a bi#[email protected] Just remove the turbo, you end up saving time. Also, lost a lot more oil than I expected. It doesn't come out easily or at all without doing so. The green orings on the turbo oil line are ripped and seeping now, not sure how, its a relatively new part, anyway other than that it seems all ok now. I'm embarrassed to say how long it took me.

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I know I'm bumping an older thread, but how long did it take you @Thebigzeus ? I decided to go ahead and rebuild mine.
I know I'm bumping an older thread, but how long did it take you @Thebigzeus ? I decided to go ahead and rebuild mine.
Whole process or just the orings? All in all like 6 hours.
Whole process or just the orings? All in all like 6 hours.
I was curious about both. I already have easy access to the oil cooler.
I was curious about both. I already have easy access to the oil cooler.
Seals like 30 minutes… lol ez pz
Seals like 30 minutes… lol ez pz
Cool.

Do you know, are there torque specs for the oil cooler assembly bolts?
I see a How-To in our future;)
Cool.

Do you know, are there torque specs for the oil cooler assembly bolts?
Yeah, tight enough. I dont torque everything to specs haha :D After wrenching on cars and stuff for 20 years I have yet to strip something out in aluminum. now that I say it I probably will soon.
I see a How-To in our future;)
Eh, un needed. 🙃 There was a like 20 page PDF I printed from GM on how to do it. It said to leave the turbo, but that was some bs lol. Maybe if you have little princess hands you can…
Eh, un needed. 🙃 There was a like 20 page PDF I printed from GM on how to do it. It said to leave the turbo, but that was some bs lol. Maybe if you have little princess hands you can…
Do show :)
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#4 here I think it was, I made a printable PDF but can't locate it any more. Engine oil cooler replacement?
#4 here I think it was, I made a printable PDF but can't locate it any more. Engine oil cooler replacement?
Thanks
#4 here I think it was, I made a printable PDF but can't locate it any more. Engine oil cooler replacement?
Which is the same thing I posted above in my makeshift tutorial. I would like to see some pictures, special comments, you know, things the manual forgot.;)
I would like to see some pictures, special comments, you know, things the manual forgot.;)
Are you talking to meee?
Cool.

Do you know, are there torque specs for the oil cooler assembly bolts?
Yes there is. If I remember it’s 71 in/lbs.. although that spec was from the 1.8L engine. Might be a little different?
Are you talking to meee?
No me, he thinks I am an award winning author I think ;)
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