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#1
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S8 cylinder head
I don't have everything I need yet for my big job that I need to do but I want to at least start. Any tips on removing the cylinder heads and do I need any special tools?
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2001 S8 (build date March 16th 2001) Brilliant black with oxblood red/black interior. Mods prior to my ownership: 01E 6 speed, carbon fiber trim, bi-xenon, aftermarket muffler with x-pipe, tinted windows, non-tip steering wheel, Spal electric fan. My mods: Oxblood red interior, LED interior lights, D3 ignition coils, new window tint, tip steering wheel with new S8 emblem, mk1 TT steering wheel air bag, mk1 TT 6 speed shift knob, new shift boot. |
#2
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A long M10 spline / triple square. I think thats really it.
Soak the exhaust manifold nuts in something for a while. Chances are the two long ones which go through the manifold will take the studs out with them since you can only get penetrant to them with the engine out and on its side. Bolt order is the same as you'd expect for a 4 cylinder. Engine in or out? |
#3
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How long M10 triple square? Do I need timing belt service tools in order to remove the cylinder heads?
The engine is staying in the car. Any other tips?
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2001 S8 (build date March 16th 2001) Brilliant black with oxblood red/black interior. Mods prior to my ownership: 01E 6 speed, carbon fiber trim, bi-xenon, aftermarket muffler with x-pipe, tinted windows, non-tip steering wheel, Spal electric fan. My mods: Oxblood red interior, LED interior lights, D3 ignition coils, new window tint, tip steering wheel with new S8 emblem, mk1 TT steering wheel air bag, mk1 TT 6 speed shift knob, new shift boot. |
#4
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Take the engine out
You'll need timing tools to put the heads back on. Taking them off doesn't matter. The SAI rubbish will need removing from the back of the heads, which isn't fun. You'll also need to disconnect the coolant link pipe from the heads, but that will be difficult to remove with the engine in place. Coolant pipe along the side of the bank 1 head - thats connected to the link pipe with a hose and some spring clips. Possible to get to that with the SAI stuff removed. Leave the exhaust manifolds on the heads and disconnect the downpipes. Remove the manifolds on the bench if needed. I have a 100mm triple square. Can't think of anything else. |
#5
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The engine is staying in the car as I don't have required items to take it out and also don't have a engine stand.
What is SAI?
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2001 S8 (build date March 16th 2001) Brilliant black with oxblood red/black interior. Mods prior to my ownership: 01E 6 speed, carbon fiber trim, bi-xenon, aftermarket muffler with x-pipe, tinted windows, non-tip steering wheel, Spal electric fan. My mods: Oxblood red interior, LED interior lights, D3 ignition coils, new window tint, tip steering wheel with new S8 emblem, mk1 TT steering wheel air bag, mk1 TT 6 speed shift knob, new shift boot. |
#6
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Secondary Air Injection - the shiny pods on the back of each head, connected by a piece of stainless tube.
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