Valve cover gasket

[rmoconnor41]

Morning
To help calculate costs could I ask how many hours it takes to replace the rocker cover gaskets.

Thanks

 

[Stevo7682]

It will help you get a more accurate answer if you can tell us which engine your zed is fitted with.
Stephen.

 

[rmoconnor41]

It will help you get a more accurate answer if you can tell us which engine your zed is fitted with.
Stephen.

Sorry 1999 2.8

 

[t-tony]

Was going to say, looking at the Smog pump delete plate it must be a 6 cyl.

Tony.

 

[colb]

Allow yourself at least two hours to do the job if you haven't done one before.
Ensure you get a replacement gasket set that includes the round rubber seals that sit under the cover retaining bolts as these need replacing as well to achieve the correct torque to hold the cover down for a good seal. Originals will have gone hard just like the main and plug hole centre gasket through age and heat cycles. Also apply Hylomar gasket sealant around the half moon shapes at the front and rear of the head where the gasket changes direction, this is a BMW recognised method for replacement.

RealOEM.com - Online BMW Parts Catalog

BMW parts Z3 E36 Z3 2.8 Cylinder head cover

www.realoem.com

I use Elring brand gasket sets and have done a few members cars, never had one come back with a leak, here is a link to Autodoc for the 2.8 set

https://www.autodoc.co.uk/elring/7625583?_gl=1*15m3bzw*_up*MQ..&gclid=EAIaIQobChMI1uSHkr3Y8AIVB-J3Ch1iawC9EAAYASAAEgLJqPD_BwE

Ensure you reattach the two earth wires under the cover when the coil packs are put back in to their studs, leaving them undone will fry the DME should the engine be started with these disconnected.

 

[rmoconnor41]

Was going to say, looking at the Smog pump delete plate it must be a 6 cyl.

Tony.

It is. The nice z shed team did that for me.

 

[rmoconnor41]

Allow yourself at least two hours to do the job if you haven't done one before.
Ensure you get a replacement gasket set that includes the round rubber seals that sit under the cover retaining bolts as these need replacing as well to achieve the correct torque to hold the cover down for a good seal. Originals will have gone hard just like the main and plug hole centre gasket through age and heat cycles. Also apply Hylomar gasket sealant around the half moon shapes at the front and rear of the head where the gasket changes direction, this is a BMW recognised method for replacement.

RealOEM.com - Online BMW Parts Catalog

BMW parts Z3 E36 Z3 2.8 Cylinder head cover

www.realoem.com

I use Elring brand gasket sets and have done a few members cars, never had one come back with a leak, here is a loink to Autodoc for the 2.8 set

https://www.autodoc.co.uk/elring/7625583?_gl=1*15m3bzw*_up*MQ..&gclid=EAIaIQobChMI1uSHkr3Y8AIVB-J3Ch1iawC9EAAYASAAEgLJqPD_BwE

Ensure you reattach the two earth wires under the cover when the coil packs are put back in to their studs, leaving them undone will fry the DME should the engine be started with these disconnected.

Thanks. I watched a video of a lady in the USA do one. In one way it was extremely informative but the level of detail was scary. There seemed a risk of dropping something into the engine at each stage.
I saw her use sealant as you advised and also replace the rubber grommets which I imagine you have referenced.

 

[colb]

The rubber grommets are in fact seals that ensure an airtight leak prevention under the retaining bolts. Air leaks from failed gaskets and seals on the cover will affect the engines vacuum system causing fuel trim issues thereby affecting the running of the engine and increased mpg as air will get in and oil get out. The centre gaskets can fail and end up filling the plug wells covering the spark plug and coil pack.
Worth noting that the retaining bolts have a shoulder on them so they cant be overtightened as when done up they contact the head and will not go any further. This is why the seals and gaskets are compressible when new so they compress enough to achieve the seal, old hard and brittle gaskets and seals cannot compress enough to get a good seal, hence the oil leaks.

 

[rmoconnor41]

The rubber grommets are in fact seals that ensure an airtight leak prevention under the retaining bolts. Air leaks from failed gaskets and seals on the cover will affect the engines vacuum system causing fuel trim issues thereby affecting the running of the engine and increased mpg as air will get in and oil get out. The centre gaskets can fail and end up filling the plug wells covering the spark plug and coil pack.
Worth noting that the retaining bolts have a shoulder on them so they cant be overtightened as when done up they contact the head and will not go any further. This is why the seals and gaskets are compressible when new so they compress enough to achieve the seal, old hard and brittle gaskets and seals cannot compress enough to get a good seal, hence the oil leaks.

Thanks. I saw from video that showed the old gasket ends up brittle like a 78 record

 

[Peter1450]

Already covered by yourself, but allow an extra hour and have a good light/torch to search for the pesky dropped nut!

 

[Delk]

Most of the job entails cleaning the cover especially if the engine has not had regular oil changes and the insides are full of gunk.

On a bit of a side note I dont silicone the edges of my gaskets. Because I am running head studs that need to be retorque once or twice after the engien has run iniitally I use Molykote M55 o-ring lubricate on the gasket. Its a silicone grease that helps keep the rubber soft and plyable. Its not super common but I started using it for work and it does a great job. It keeps the seal in good condition and I can reuse it several times and have never had a leak.

 

[the Nefyn cat]

One of these may be your friend, if not this time then next. Can you guess how I know?

Tool,retrieving,magnetic,telescopic | RS

uk.rs-online.com

 

[rmoconnor41]

How

Allow yourself at least two hours to do the job if you haven't done one before.
Ensure you get a replacement gasket set that includes the round rubber seals that sit under the cover retaining bolts as these need replacing as well to achieve the correct torque to hold the cover down for a good seal. Originals will have gone hard just like the main and plug hole centre gasket through age and heat cycles. Also apply Hylomar gasket sealant around the half moon shapes at the front and rear of the head where the gasket changes direction, this is a BMW recognised method for replacement.

RealOEM.com - Online BMW Parts Catalog

BMW parts Z3 E36 Z3 2.8 Cylinder head cover

www.realoem.com

I use Elring brand gasket sets and have done a few members cars, never had one come back with a leak, here is a link to Autodoc for the 2.8 set

https://www.autodoc.co.uk/elring/7625583?_gl=1*15m3bzw*_up*MQ..&gclid=EAIaIQobChMI1uSHkr3Y8AIVB-J3Ch1iawC9EAAYASAAEgLJqPD_BwE

Ensure you reattach the two earth wires under the cover when the coil packs are put back in to their studs, leaving them undone will fry the DME should the engine be started with these disconnected.

How are autodoc? Some poor reviews and lengthy delivery times but can’t find this item with ALL the bits anywhere else.

 

[Lee]

We use AutoDoc alot, Prices are much better than UK prices but you will have to wait over a week while it's delivered from the main land.

For smaller items like you need, BMW is competitively priced.

 

[rmoconnor41]

We use AutoDoc alot, Prices are much better than UK prices but you will have to wait over a week while it's delivered from the main land.

For smaller items like you need, BMW is competitively priced.

The link I got included ALL the gasket parts including the rubber grommets/seals which I couldn’t find elsewhere.

 

[Delk]

If you are buying a small amount of items quite often you can get the part number off realoem and get them off eBay. You can search for decent brands and there are a good number of large scale sellers in the UK that deliver quite quickly.

I use autodoc or onlinecarparts now and again and never had a problem. I think they are the same company. Good prices and s to service but you do have to wait for delivery. Currently I have caliper rebuild kits and a bunch of other parts on order from them that will be used later.

 

[rmoconnor41]

If you are buying a small amount of items quite often you can get the part number off realoem and get them off eBay. You can search for decent brands and there are a good number of large scale sellers in the UK that deliver quite quickly.

I use autodoc or onlinecarparts now and again and never had a problem. I think they are the same company. Good prices and s to service but you do have to wait for delivery. Currently I have caliper rebuild kits and a bunch of other parts on order from them that will be used later.

Thanks

 

[rmoconnor41]

Allow yourself at least two hours to do the job if you haven't done one before.
Ensure you get a replacement gasket set that includes the round rubber seals that sit under the cover retaining bolts as these need replacing as well to achieve the correct torque to hold the cover down for a good seal. Originals will have gone hard just like the main and plug hole centre gasket through age and heat cycles. Also apply Hylomar gasket sealant around the half moon shapes at the front and rear of the head where the gasket changes direction, this is a BMW recognised method for replacement.

RealOEM.com - Online BMW Parts Catalog

BMW parts Z3 E36 Z3 2.8 Cylinder head cover

www.realoem.com

I use Elring brand gasket sets and have done a few members cars, never had one come back with a leak, here is a link to Autodoc for the 2.8 set

https://www.autodoc.co.uk/elring/7625583?_gl=1*15m3bzw*_up*MQ..&gclid=EAIaIQobChMI1uSHkr3Y8AIVB-J3Ch1iawC9EAAYASAAEgLJqPD_BwE

Ensure you reattach the two earth wires under the cover when the coil packs are put back in to their studs, leaving them undone will fry the DME should the engine be started with these disconnected.

 

[rmoconnor41]

Does this look correct?

 

[Delk]

I am pretty sure thats the same one I used on my 2.8tu and 3.0 engine