Replacement of Leaky Valve Cover Gaskets On A Discovery Series II

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The Valve Cover Gaskets in the 4.0 / 4.6 / 3.9 / 4.2 Bosch engine in older Rover models like the 4.0 / 4.6 Range Rover, Discovery Series II, Range Rover Classic are notorious for leaking.
Here is how to service: Watch Doug, our Land Rover Master Technician, perform the Valve Cover Gasket Replacement on 2002 Discovery Series II (not equipped secondary air).
Using Valve Cover Gaskets Part # LVC100260, you will need two gaskets in this service.
This video also covers removing the throttle body and replacing throttle body gasket (ERR6623) without disconnecting the coolant lines, removing and replacing the upper intake manifold gasket (ERR6621), and removing and replacing the oil separator (LLJ000010) as you have the passenger-side valve cover gasket off.
Doug will also discuss vehicles equipped with secondary air.
0:35 Valve cover gaskets are known for leaking
1:35 Parts needed
2:16 Remove the throttle body without having to disconnect coolant lines
3:07 Take out the air intake assembly
4:09 Disconnect throttle position sensor and your breather tube
5:18 Consider replacing the plastic line cooler to expansion tank
5:45 Location of throttle body
6:09 Pinch off hose lines
7:22 Remove clips from breather hose and Idle air control motor hose
7:39 Heater plate location
7:48 Throttle position sensor location on throttle body
8:18 Move AC compressor out of the way
10:59 Some footnotes on vehicles that are equipped with secondary air
12:46 Removing the upper intake manifold
21:18 Intake is off
22:08 Cover open holes to the intake manifold
22:23 Move hoses away to access right bank valve cover
25:12 Valve cover pops off
26:02 Valve cover gaskets have metal barrels remove all
27:03 Prep to replace gasket to the valve cover
28:59 Fully seat the new gasket and replace valve cover
31:00 We have the valve cover in place using 2-step tightening
32:01 Reverse what we had started here to reinstall
32:33 Repeat identical process on left side
33:00 Sidebar for oil separator
34:38 Ready to replace upper intake
35:33 Install new gasket for upper manifold
36:25 Maneuver upper manifold into place
37:36 Six bolts started and torqued to 18 foot-pounds
43:23 Reinstall throttle body with new gasket
44:57 Reinstall opposite of tear down
48:52 AC compressor back in
51:19 Replace belt
51:42 Air intake reinstalled
52:54 Install clamps for mass air flow sensor
53:14 Fan back on, right hand thread
54:17 Shroud returned
55:10 Hook up last hoses
56:01 PCV hose installed
56:16 Finish up job check work
57:56 Ordering information
Questions about this video? Call us at 1-800-533-2210 or contact us via live chat at roverparts.com.
For more how-to videos on the Discovery Series II and other Rover vehicles visit www.roverparts...
Parts List:
Valve Cover Gasket Kit, New Style, Rubber Includes 2 Gaskets
www.roverparts...
Rubber Valve Cover Gasket LVC100260, New Style
www.roverparts...
Throttle body gasket:
www.roverparts...
Upper intake manifold gasket:
www.roverparts...
Oil separator:
www.roverparts...
#atlanticbritish #boschengine #valvecover #discovery1

Опубликовано:

13 сен 2024

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Комментарии : 86

@merseybeat1963 2 года назад

Is this guy still with Atlantic British cause he really is a good as it gets for these instructional videos. Speaks clearly ..detailed.. basically perfect.

@user-hk4xr7bh2o 10 месяцев назад

Great video. Tough job, especially with secondary air. I wish there was more on that as I had to figure some things out the hard way. Also, while I agree with showing the passenger side first as it is harder. I'd recommend anyone doing this actually start with the drivers side. It will give you some experience that will help when tackling the other bank. It is hard, especially with secondary air, to get that cover out. Mission nearly accomplished now. Having some trouble with the ignition and secondary air bracket but stopped as I was tired. I'm getting too old for these projects! Thanks Atlantic British for all the great videos.

@johnreed4962 4 месяца назад

I cut the heads off of the 2 long valve cover screws then cut a slot to install/remove them. I then put them in the holes for the short screws. You can then set the valve cover gasket on place and those two screws hold it in place while you replace the valve cover. Install the 2 long screws, remove the 2 you made with a screw driver then install the 2 short. Its a lot easier than trying to get the gaskets to stick with something.

@saturbo1107 8 лет назад

I replace mines on 2010 truck has around 78k miles, last week I pull the valve covers to paint them and reused the same valve covers gaskets, they were totally in perfect shape after 120k miles more! My odometer hit 210k miles last week.. Those rubber gaskets are amazing!!!

@oneup2006 8 лет назад

The video on replacing valve cover gaskets on a disco 2 was excellent! Thank you for posting it!

@7094ryan 6 лет назад

You are the man..Not complete but ready to finish today.

@krover01 7 лет назад

Just followed this to replace my intake gasket and coil pack! Great tutorial!!

@davidjones9822 6 лет назад

also thank you for the informative videos. You turned my 3 week projects into 1 day projects thank you

@chop4186 6 лет назад

As per usual, another excellent video with the ultimate details and explanations👍👍👍

@jameskriseman1821 Год назад

Excellent tutorial. thank you very much! The details were spot-on!

@kevinduffy6712 4 года назад

This site is brilliant !.When I did the heads on my d2 2001 I got slightly shorter bolts , for the rocker coverrs ! .So you get more pull on them and they were Allen key head .Reason ?, easier to fit !, No leaks .

@miltonroberto2967 3 года назад

nothing but an excellent video on how to replace valve cover gaskets, I'm about to start on a 2000 with secondary air. Thank you for explaining step by step procedure

@damstr8831 8 лет назад

Really excellent Video! I appreciate the explanations, techniques and tips along the way...

@josefelix4152 5 лет назад

Your video helped me a lot! I was struggling to get the upper manifold off, i loosen the coil bracket and came out!

@atlanticbritishrp 5 лет назад

glad we could help!

@InformationTooMuch 9 лет назад

Amazing video, thanks!

@TheHomeRenovator 9 лет назад

Great video, Thanks!

@troyanderson7484 2 года назад

You sir are the Bob Villa of Land Rovers.

@IvanLChess 9 лет назад

very helpful, thanks.

@pedrinpablo007 9 лет назад

SUPER WOWWWWW VIDEO THANKS.

@الكلمة-ل4ك 3 года назад

Great 👍👍👍👍👍

@thirdgengta Год назад

This video is wonderful. Highly recommended. When I removed the valve cover gaskets, three of those little steel gasket rings went missing. I fished two out of the crankcase with a long wand magnet. As much as I fished in the crankcase for the third--in all of the ports that lead to the crankcase; but I still cannot find it. It may have hit the ground and rolled away, it may have gotten lodged somewhere in the engine compartment. I've looked all over for two days, but cannot find it. I am really reluctant of putting the whole thing back together again, only to discover it wound up in the crankcase where my magnet couldn't reach. Is there a way I am not considering that would help me to recover that thing? Or is tearing off the fuel injection system and the lower intake assembly the only answer to be absolutely sure?

@lewishunt6133 Год назад

That must be infuriating. Did you manage to find it?

@Fergurburger44 7 лет назад

Can you make one to show how to change the oil pan gasket?

@ChrisSummers 9 лет назад

Great video, hope to replace my gaskets later this summer. I had to replace my throttle body heater plate and gasket this past year as they were leaking and I wanted to flush and refill the system and I went ahead and replaced the brittle plastic hoses (TBHP to reservoir and the one from the radiator) with rubber heater hoses but be careful as the pipe at the radiattor is plastic and can break if you push it too hard and then you are replacing a radiator. It's worth pointing out that if you are doing this you should consider swapping out the spark plug wires if they are old as it is easier to do if the intake manifold is removed. Also if you do have bad hoses you might as well change them instead of just moving them like he did. I would use some zip ties to pull the wiring harness and other things out of the way, seems like he was fighting them as them got back in the way. That 12 pt socket for the valve covers is hard to find. I think I finally was able to special order a Craftsman one from Sears, I imagine Snap On or other pro suppliers have them. You can tighten the lower bolts a few times, typically at oil changes but those barrels in the gasket will eventually keep you from tightening them further and the rubber gasket get brittle so they will leak. I have read on some of the LR forums that some people use some RTV gasket cement to glue the rubber to the cylinder head to inhibit future leaking, not sure if that works or just makes the next swap out harder.

@ninja63639 2 года назад

Can I just use Right Stuff to seal the valve covers to the heads and never have to worry about it again?

@kennethpappas 6 лет назад

GREAT video! I just got my Range Rover back from the dealership since I am under CPO where they did this job. Immediately after I got the vehicle and drove it about 50 miles the engine light started flashing, then the REDUCED PERFORMANCE warning came on and the Rover basically had very little power. Could something have gone wrong in this service that I should be looking at? Range Rover dealership quickly told me when I reported this that I am NOW out of CPO. How convenient! Advice?

@Douglionel 6 лет назад

If a valve cover, oil fill cap or dipstick not properly installed after the repair can loosen and create a vacuum leak that will cause 'reduced performance'

@santosnavas3234 Год назад

Saludos desde Barinas Venezuela gracias por tan detallada explicación entiendo algo de Inglés pero me gustaría que respondiera si está a su alcance porque se colocan esas pinzas en esas dos mangueras debajo de la aceleración gracias de antemano

@kevinduffy6712 4 года назад

Tip change ignition leads and coil packs

@playguitarguy 4 года назад

Good one. I have mine apart now. Otherwise that job is impossible!

@kevinduffy6712 4 года назад

@@playguitarguy you are right there ! It took me 4 hrs to do the leads only !. I should have removed the inlet manifold . The leads stick in the coil packs and are hard to get out !

@playguitarguy 4 года назад

Wicked!

@bob_Human 8 лет назад

Secondary Air makes it impossible to just 'roll off' the valve cover on the passenger side as shown in this video and while it's true that you can remove the upper air intake manifold by simply removing the studs you can not remove the valve cover on the passenger side as shown in this video without removing the pipe assembly that attaches to the exhaust manifold. Just a head's up to anyone who runs out and buys a socket for studs.

@bob_Human 8 лет назад

If there IS a way to do it on the passenger side without removing that pipe assembly I'm ready to see how that's done.

@dewmontjerkins9886 7 лет назад

Gently pry the bracket off of the two studs in the intake-- it will flex easily as the air pipes are bellowed to absorb vibration; this method is far less risky than trying to unbolt the air injection tubes from the manifold. Also with secondary air you need to remove the metal cooling tube than bolts into the top of the engine; as a plus it's far easier to get the valve cover on and off with the tube out of the way!

@davidisdivad 7 лет назад

I did it, i removed the two retaining nuts from that bracket, removed the rubber hoses from the the sai metal valve things. and well i just risked bending the pipe "easily" back, pulling the bracket away from the studs on the intake. you only have to go 1/2 inch if you "trim" the studs. The valve cover tacking adhesive was a pretty handy, but still troublesome. The heater hose have to be unscrewed and pulled back, you need to make a pretty good tunnel under the alternator wire. Worked out for me, good luck. I found it pretty nice to changing all the spark plugs and wires while everything was apart.

@F4Effort 2 года назад

So the only criticism I have is the full removal of the fan. In this video it looked like he just hit the wrench once with the hammer and it came right off. I had to get two different fan clutch wrenches and a thin 36mm wrench before I got mine to come off. Set me back almost two weeks with my work schedule!

@widespreadian Год назад

Mine came off on first hit with fan wrench. Just how these things go.

@buffASSseabass 4 года назад

Is it possible to try replacing the valve stem seals with the heads on? I want to try putting rope in the spark plug holes and cranking each cylinder up at a time to hold the valves up from falling inside the block, any tips I should take from you guys before attempting this job? THANKS GUYS I HOPE ALL IS WELL OVER THERE 🙏

@sjepson100 8 лет назад

This is a great video. But I am going on down into the engine to replace the head gaskets. It there a video for showing how to get the heads off or is there not much to show about that once you have the intake manifold and valve covers off?

@49erjohn 8 лет назад

Can you let me know if you find a video? my head gasket just blew today and I was quoted $2500+ to change. I definitely don't have the money for that. I have a 2000 Disco II and I would hate to have a dead vehicle sitting in my driveway. Thanks.

@RenegadeGreen 7 лет назад

what did yo end up doing??? think my head gasket is screwed?

@72Disco1998 7 лет назад

Steve Jepson You might as well while you have it taken apart.

@72Disco1998 7 лет назад

49erjohn The reason for the hugh cost is labor. I did my own on my 99 D2, go ahead and have your heads cleaned and resurfaced. The cost will depend on the machine shop.

@atlanticbritishrp 6 лет назад

We've added a new video for this - please see it here (and click "Read More" for links to related videos.... ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-KLftjCd1RcE.html

@mackendw 2 года назад

those pliers that you used to take off and put back on the squeeze clamps.... do you guys sell those?

@faisalal-osaimi3856 9 лет назад

that was helpful👍..... can i see a front crankshaft oil seal change? for a v8 4.0 disco .... its a pretty common fix on them😊 plz thanks for all the great videos best regards..... faisal

@saturbo1107 8 лет назад

I have a video on that in my channel

@saturbo1107 8 лет назад

Is call "the front cover seal replace on a land rover discovery 2"

@faisalal-osaimi3856 8 лет назад

+Edwin Aristigueta I'm looking forward to chang the rear one😊 I saw your video ..it was very helpful thank you very much

@kevinduffy6712 3 года назад

Here is atip !. Replace the rocker cover bolts with slightly shorter Alan key type bolts !, This will enable you to pull the rocker cover down making it squeeze the gasket more Just be care full not to over tighten them as you will crack some thing .!

@Bobby82568 Год назад

What was the point of removing the fan?

@alfredstricker3491 5 лет назад

need a video on under throttle body is a coolant pipe replacement how to video on a 2014 3.0 super charge lr4 hse

@alfredkabura4101 7 лет назад

The plastic hoses break easy i have changed some with the rumber ones.

@Cass48 9 лет назад

Secondary air adds fresh air to the exhaust at startup to help with emissions until the catalytic converters get up to temp. I'm not sure if the purpose is to help the cats get up to temp quicker or to help burn off emissions until the cats get hot, or both.

@davidjones9822 6 лет назад

28:35 looked like you sprayed the tac spray inside the valve cover? Curious if I saw that right

@ashrafsafaah1872 2 года назад

can i use silicone-based adhesive material ?

@الكلمة-ل4ك 3 года назад

We need more disco ii

@AveroNZ1 8 лет назад

Hi, great video - many thanks. Do you know off hand what size bolts (and material) should be used to replace the studs for the secondary air brackets? I need to order a stud remover as well, so any advice much appreciated.

@Obababoy 7 лет назад

I just used the nuts that were on the studs and put two of them together to remove the studs...Came out easier than I thought.

@tbsdrummer87 4 года назад

I haven’t worked on a vehicle in 3 or 4 years - did simple stuff - brakes, spark plugs, alternator , starter, exhaust etc.. should I let a professional do this or is it safe for me to try?

@kendallcarrier548 4 года назад

Does your Rover have secondary air? If it doesn't then you should be safe to do this. Just make sure to watch the video and do exactly as he says. If you do have secondary air I would suggest seeking help. I just finished doing this on my 01 RR that did have secondary air and it was much more difficult than I thought it would be. There is a lot of things not covered in the video about secondary air. If you don't have it the video will walk you through it precisely. Good luck!

@peterorji3144 6 лет назад

I need high tension plug arrangement, from the coil to plugs, Bosch engine?

@joncharlton2526 7 лет назад

Hi folks. It isn't possible to remove the passenger side valve cover without removing the SAI pipe assembly for a LR D2 2004. It would be appreciated if Atlantic British mentioned that it the video; otherwise, it's a good video with useful tips. Also you don't have to remove the fan to get the serpentine belt off.

@davidisdivad 7 лет назад

you may want to remove the fan, and lower the whole air conditioning/powersteering bracket, tons of space for those 6 bolts or so just lower the bracket a bit, don't have to remove it.

@1mariosteel612 2 года назад

I have a 2001 Land Rover Discovery 2. I change the upper manifold gasket after I change my coils after I did that I've been hearing knocking noises what's the problem

@the1stime 2 года назад

Did you figure out the cause?

@sarahfetla9513 6 лет назад

What are the 2 hoses coming off of the bottom of the throttle body? My Land Rover is missing them, I’m not sure what they are, what they’re for or where they need to go.

@grahamhgraham 5 лет назад

These are heater hoses to speed up the heating of the throttle body to help reduce emissions. They make no difference to performance and some folks have them taken off and connected together to bypass the body or have them blocked off completely.

@kembalsado1 8 лет назад

hello at 47:20 you talk about the throttle body heater cooling lines. How important is that? I had constant leaking from that spot after multiple replacements of the gasket so I ended up bypassing it.

@jefferyllindenmuth1445 8 лет назад

+Kenneth Embalsado Did you replace just the gasket? You want to replace the little heater body and the gasket, because it is the aluminum heater body that warps.The gasket along dies not usually fix it.

@kembalsado1 8 лет назад

I ordered the full replacement kit that has the aluminum piece.

@jefferyllindenmuth1445 8 лет назад

+Kenneth Embalsado Very weird that it still leaked. I've done many and they usually last a few years. There is an aftermarket company that makes a brass one that is supposed to fix it for good.

@davidisdivad 7 лет назад

Can you use that permatext tacking/gasket maker on the lower and upper intake? -anyone-? in conjunction with the metal gasket.