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Holden Cruze oil cooler failure - oil in coolant

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Language: en

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[Music]
00:00:06.580 00:00:06.590 hi guys welcome back to see science and
00:00:09.320 00:00:09.330 mechanical so I just want to show you a
00:00:10.820 00:00:10.830 really quick one today a comment cooling
00:00:13.250 00:00:13.260 system issue on the GM cars so Astra's
00:00:17.390 00:00:17.400 crews anything that's running as an 18 X
00:00:20.060 00:00:20.070 er engine or a f-18 D engine they use
00:00:23.780 00:00:23.790 the same oil cooler so I'll show you how
00:00:25.910 00:00:25.920 they fail and what causes
00:00:28.380 00:00:28.390 00:00:29.020 00:00:29.030 [Applause]
00:00:31.800 00:00:31.810 00:00:34.270 00:00:34.280 okay so we've got this aah
00:00:36.770 00:00:36.780 Astra here and it's running a Z 18 X er
00:00:40.250 00:00:40.260 engine but as I mentioned they're very
00:00:41.930 00:00:41.940 similar set up on the f-18 D and you'll
00:00:44.750 00:00:44.760 start to see oil in the cooling system
00:00:47.120 00:00:47.130 so this one is a terrible case there's
00:00:49.850 00:00:49.860 oil and enough that it's bubbling out
00:00:52.510 00:00:52.520 and you get this terrible milkshake
00:00:55.689 00:00:55.699 probably can't see too much in there but
00:00:58.010 00:00:58.020 you can start to see some of this
00:00:59.119 00:00:59.129 milkshake residue and all through the
00:01:02.090 00:01:02.100 cooling system the corn is just full of
00:01:03.950 00:01:03.960 that so the problem is down here
00:01:07.040 00:01:07.050 underneath the exhaust manifold where
00:01:10.219 00:01:10.229 this coolant pipe runs it runs into an
00:01:13.130 00:01:13.140 oil cooler but more it's a heat
00:01:15.109 00:01:15.119 exchanger so I wouldn't particularly
00:01:16.520 00:01:16.530 call it an oil cooler it allows oil and
00:01:20.180 00:01:20.190 coolant to go through and they they mix
00:01:22.490 00:01:22.500 their temperatures but they're not
00:01:24.080 00:01:24.090 supposed to mix fluids together so the
00:01:26.359 00:01:26.369 seals in them fail and they do start to
00:01:28.580 00:01:28.590 get more often you'll start to see oil
00:01:30.650 00:01:30.660 in the coolant luckily this one even
00:01:32.779 00:01:32.789 though it's it's quite bad it hasn't
00:01:34.340 00:01:34.350 started to marshmallow all the hoses so
00:01:36.469 00:01:36.479 what tends to happen is these hoses
00:01:38.210 00:01:38.220 they're not designed to have oil in them
00:01:39.950 00:01:39.960 and they can start to bulge and split
00:01:42.350 00:01:42.360 and get to the point where one of these
00:01:43.940 00:01:43.950 hoses breaks you're pretty much going to
00:01:46.430 00:01:46.440 be looking at head gasket damage on one
00:01:48.230 00:01:48.240 of these cars they do not like to
00:01:49.580 00:01:49.590 overheat at all so I'll go through and
00:01:51.649 00:01:51.659 do the job and I'll get you a through a
00:01:53.240 00:01:53.250 few pictures along the way so that you
00:01:55.010 00:01:55.020 can see how to fix it first things first
00:01:58.130 00:01:58.140 we're going to get a lot of the mud out
00:02:00.830 00:02:00.840 of the system so you'll see
00:02:03.700 00:02:03.710 this disgusting chocolate mud that it's
00:02:06.580 00:02:06.590 creative not cool into anymore it's oily
00:02:08.770 00:02:08.780 water I'm just going to use a garden
00:02:11.080 00:02:11.090 hose I'm gonna go in here we're gonna
00:02:13.780 00:02:13.790 try and flush out much as we can before
00:02:16.360 00:02:16.370 we actually get started
00:02:26.150 00:02:26.160 I like to go under the car first so I
00:02:28.520 00:02:28.530 need to get the radiator fans out and
00:02:30.080 00:02:30.090 the exhaust off we usually use a bit of
00:02:32.980 00:02:32.990 Enochs get it on the exhaust studs there
00:02:38.450 00:02:38.460 gives us a chance if I'm doing and
00:02:40.700 00:02:40.710 without them breaking so we've got our
00:02:44.690 00:02:44.700 radiator fan out and the exhaust
00:02:46.670 00:02:46.680 manifold off and this is the culprit
00:02:49.490 00:02:49.500 down here that holds your oil filter and
00:02:54.830 00:02:54.840 it runs all the way along here and
00:02:57.260 00:02:57.270 allows coolant to mix with the oil so
00:02:59.990 00:03:00.000 we'll get it off and we'll take a look
00:03:01.760 00:03:01.770 at the seals inside it
00:03:16.030 00:03:16.040 not too bad so say looks like we're not
00:03:18.820 00:03:18.830 getting caught into the oil more just
00:03:21.070 00:03:21.080 oil into the coolant so here's our evil
00:03:26.380 00:03:26.390 oil cooler
00:03:28.110 00:03:28.120 it's a frontside that we were looking at
00:03:30.309 00:03:30.319 before so the problem that occurs is
00:03:33.580 00:03:33.590 inside here we'll get those bolts up
00:03:44.140 00:03:44.150 take
00:04:11.180 00:04:11.190 that's where the contamination occurs
00:04:12.680 00:04:12.690 we've got our oil passage here a coolant
00:04:14.960 00:04:14.970 passage here but they've become one
00:04:16.940 00:04:16.950 passage so this o-ring here just you
00:04:19.580 00:04:19.590 feel it's just flat some lost all of its
00:04:22.370 00:04:22.380 raised properties just from the heat
00:04:25.340 00:04:25.350 cycles to it so a bunch of seals here to
00:04:29.780 00:04:29.790 replace all the seals internally all the
00:04:31.850 00:04:31.860 seals externally so a bunch of seals
00:04:34.190 00:04:34.200 here and my had customers come from
00:04:35.630 00:04:35.640 Oldham with quotes where they were just
00:04:37.340 00:04:37.350 replacing the whole cooler well over
00:04:39.260 00:04:39.270 $1,000 but you definitely can buy seal
00:04:41.630 00:04:41.640 kids for them much cheaper repair and
00:04:43.790 00:04:43.800 it's very messy so we'll get this all
00:04:45.860 00:04:45.870 cleaned up over here as well definitely
00:04:48.830 00:04:48.840 do a thermostat with it so this seal in
00:04:50.780 00:04:50.790 the middle here see it's just turned two
00:04:53.870 00:04:53.880 marshmallow and mark on the old one so
00:04:56.600 00:04:56.610 that thermostat would have caused us
00:04:57.890 00:04:57.900 problems and I've got a bunch of other
00:04:59.410 00:04:59.420 components that are going to need to be
00:05:01.190 00:05:01.200 changed because this stuff does not play
00:05:03.230 00:05:03.240 well with all of the rubber in the
00:05:04.850 00:05:04.860 cooling system
00:05:24.260 00:05:24.270 so this goes to show the the death of
00:05:26.450 00:05:26.460 Australian production we've got one oil
00:05:28.879 00:05:28.889 cooler this is a earrings for it made in
00:05:31.640 00:05:31.650 Italy they got these ones over here from
00:05:34.490 00:05:34.500 Ireland over to Germany I've got one
00:05:38.930 00:05:38.940 cooler all of these earrings and they
00:05:41.270 00:05:41.280 they've come from all the way around the
00:05:43.010 00:05:43.020 world over in the wash bay so we've got
00:05:48.050 00:05:48.060 dorloff more flushing trying to get as
00:05:52.040 00:05:52.050 much of the muck out as we can
00:05:57.940 00:05:57.950 00:05:59.400 00:05:59.410 so we've got all of our new o-rings in
00:06:01.710 00:06:01.720 there ready to go make sure that you use
00:06:03.870 00:06:03.880 a little bit of our to use rubber grease
00:06:05.930 00:06:05.940 particularly on these pipes that we're
00:06:08.520 00:06:08.530 going to be pushing in you want to give
00:06:09.810 00:06:09.820 them some lubrication so it doesn't snag
00:06:11.790 00:06:11.800 and give you some problems later so all
00:06:14.460 00:06:14.470 of those o-rings there I put a little
00:06:16.050 00:06:16.060 bit of lubrication on them so back
00:06:18.930 00:06:18.940 together before we fill it up with
00:06:21.810 00:06:21.820 coolant we're going to run some oil
00:06:23.340 00:06:23.350 remover through the system get them do
00:06:25.890 00:06:25.900 it in two stages so I'm going to put
00:06:27.240 00:06:27.250 some in run it for a while
00:06:29.010 00:06:29.020 flush out the system again then add some
00:06:31.260 00:06:31.270 more and do that again they're still
00:06:33.120 00:06:33.130 going to be oil left in the system but
00:06:34.620 00:06:34.630 we're going to try our best to get it
00:06:35.940 00:06:35.950 out and then finally we'll put coolant
00:06:38.460 00:06:38.470 in it and bleed it for the final time
00:06:40.670 00:06:40.680 so after several bleeds I'm going
00:06:43.710 00:06:43.720 through our oil separator here so goes
00:06:46.680 00:06:46.690 down through the ground and through our
00:06:48.000 00:06:48.010 oil separator I'm certainly wouldn't
00:06:50.040 00:06:50.050 recommend doing this at home and putting
00:06:51.510 00:06:51.520 it down the sewer as you saw there's
00:06:53.580 00:06:53.590 quite a lot of oil there we've got a
00:06:55.200 00:06:55.210 good result so it took several flushes
00:06:57.630 00:06:57.640 put a new header tank on there this is
00:07:00.360 00:07:00.370 just the final bleed so we'll let that
00:07:02.010 00:07:02.020 bleed through and then we'll adjust the
00:07:03.810 00:07:03.820 final level but we seem to have got the
00:07:06.810 00:07:06.820 majority of the oil out of the system
00:07:08.280 00:07:08.290 and this Astra should live for another
00:07:09.660 00:07:09.670 day crews pretty cheap really to do
00:07:21.660 00:07:21.670 those seals them so much cheaper than
00:07:23.310 00:07:23.320 say a head gasket or something else that
00:07:24.930 00:07:24.940 gives those kinds of symptoms but a
00:07:27.330 00:07:27.340 messy job and it's much better to try
00:07:30.510 00:07:30.520 and prevent it then get to this point so
00:07:32.190 00:07:32.200 honestly if I owned one of these cars
00:07:34.080 00:07:34.090 I'd be replacing those cooler seals
00:07:35.700 00:07:35.710 every 100,000 kilometers or so because
00:07:38.100 00:07:38.110 once it gets through the system
00:07:39.630 00:07:39.640 everything rubber in the cooling system
00:07:41.280 00:07:41.290 gets compromised and you're on a pretty
00:07:43.680 00:07:43.690 slippery slope from there so thanks for
00:07:45.870 00:07:45.880 watching and check out our Facebook
00:07:47.000 00:07:47.010 subscribe to our YouTube and I'll see
00:07:49.800 00:07:49.810 you down in the comments section thanks
00:07:53.230 00:07:53.240

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