Hexagon-head bolt 原装 Porsche 零部件 94810520900

Engine Crankcase Breather Hose Kit

The engine crankcase breather hose is a key part of your vehicle’s positive crankcase ventilation (PCV) system. Its main role is to route pressurized gases from the engine crankcase to the PCV valve (also called the air/oil separator). The PCV valve captures harmful oil  vapers , drains them back into the engine, and redirects the cleaned air to the intake system to be burned during normal combustion.

Without a properly functioning breather hose, your engine can develop performance issues, oil leaks, and even emissions failures.

Why the Engine Crankcase Breather Hose Matters

During combustion, engines naturally produce positive crankcase pressure. This pressure combines with heat and oil vapers inside the crankcase. The breather hose is designed to handle this flow and keep your PCV system working efficiently.

Over time, however, exposure to heat, oil, and pressure makes the breather hose a common failure point. When damaged, it can cause poor performance, check engine lights, and increased emissions.

Common Symptoms of a Failing Crankcase Breather Hose

• Cracks, leaks, or breaks – Heat and oil vapers degrade rubber or plastic over time, leading to air leaks.
• Broken connectors or clips – Brittle plastic can snap during service or due to age.
• Visible damage – Hoses may split, soften, or harden, creating noticeable holes.
• Check Engine Light (CEL) – Unmetered air from a leak often triggers intake-related fault codes.
• Engine misfires or rough idle – Severe air leaks upset the air/fuel mixture, causing misfires.

Oil residue or odour – Escaping vapers leave oily deposits on the hose, engine block, and nearby components. In severe cases, you may smell burning oil.

Why You Shouldn’t Ignore a Bad Breather Hose

A faulty crankcase breather hose affects engine performance, fuel efficiency, and emissions compliance. Left untreated, it can cause long-term engine damage and costly repairs.

If you notice any of the above signs, it’s important to inspect and replace your crankcase breather hose as part of regular PCV system maintenance.

Diagram ref no 13 (Cyl 1-4) or 14 (Cyl 5-8)

NOTE: This part is compatible only with 957 Cayenne S/GTS models produced from the 2009 model year onwards. It is not compatible with earlier models equipped with the silver AOS.

发动机曲轴箱通气软管套件（银色盖子）

发动机曲轴箱通气软管是车辆曲轴箱强制通风 (PCV) 系统的关键部件。其主要作用是将加压气体从发动机曲轴箱输送至 PCV 阀（也称为油气分离器）。PCV 阀会捕获有害的油雾，将其排回发动机，并将净化后的空气重新引导至进气系统，以便在正常燃烧过程中燃烧。

如果没有正常工作的通气软管，您的发动机可能会出现性能问题、漏油，甚至排放故障。

为什么发动机曲轴箱通气软管如此重要

在燃烧过程中，发动机自然会产生曲轴箱正压。该压力与曲轴箱内的热量和油雾相结合。通气软管的设计旨在处理这种气流，并保持您的PCV系统高效运行。

然而，随着时间的推移，通气软管暴露在高温、油污和高压下，会成为常见的故障点。一旦损坏，可能会导致性能下降、发动机故障灯亮起以及排放增加。

曲轴箱通气软管故障的常见症状

• 裂缝、泄漏或断裂——随着时间的推移，热量和油会损坏橡胶或塑料，导致漏气。
• 连接器或夹子损坏——脆性塑料在使用过程中或由于老化可能会断裂。
• 可见损坏——软管可能会裂开、变软或变硬，从而产生明显的孔洞。
• 检查发动机灯 (CEL) – 泄漏的未计量空气通常会触发与进气相关的故障代码。
• 发动机失火或怠速不稳——严重的漏气会扰乱空气/燃料混合物，导致失火。

油污或异味——漏出的电子烟油会在软管、发动机缸体和附近的部件上留下油污。严重的情况下，你可能会闻到烧焦的油味。

为什么你不应该忽视呼吸软管

曲轴箱通气软管故障会影响发动机性能、燃油效率和排放合规性。如果不及时处理，可能会导致发动机长期损坏和昂贵的维修费用。

如果您注意到上述任何迹象，请务必检查并更换曲轴箱通气软管，这是定期 PCV 系统维护的一部分。

图表参考编号 13（气缸 1-4）或 14（气缸 5-8）

注意：此部件仅适用于 2009 款及以后生产的 957 Cayenne S/GTS 车型。不适用于配备银色 AOS 的早期车型。

保时捷凸轮轴调节器和螺栓套件 - 可变气门正时维修方案

这款凸轮轴调节器和螺栓套件为恢复保时捷 958 Cayenne 4.8 升 V8 和 970 Panamera 4.8 升 V8 和 3.6 升 V6 发动机的正确凸轮轴正时运行提供了完整的解决方案。

适用：

• 保时捷 958 Cayenne S V8 4.8L 汽油版（400马力）2010-17
• 保时捷 958 Cayenne S V8 4.2L 柴油版（382马力）2010-17
• 保时捷 958 Cayenne GTS V8 4.8L 汽油版（400马力）2010-17
• 保时捷 958 Cayenne Turbo V8 4.8L 汽油发动机（500马力）2010-17
• 保时捷 958 Cayenne Turbo S V8 4.8L 汽油版（550马力）2010-17
• 保时捷 970.1 Panamera V6 3.6L 2WD 2009-13
• 保时捷 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• 保时捷 970.1 Panamera S V8 4.8L 2009-13
• 保时捷 970.1 Panamera 4S V8 4.8L 2009-13
• 保时捷 970.1 Panamera GTS V8 4.8L 2011-13
• 保时捷 970.1 Panamera Turbo V8 4.8L 2009-13
• 保时捷 970.1 Panamera Turbo S V8 4.8L 2009-13
• 保时捷 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
• 保时捷 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
• 保时捷 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
• 保时捷 970.2 Panamera Turbo V8 4.8L (520马力) 2014-16
• 保时捷 970.2 Panamera Turbo V8 Executive 2014-16
• 保时捷 970.2 Panamera Turbo S V8 4.8L 2014-16

该套件包含：
1 个凸轮轴调节器单元
1 个紧固螺栓（一次性扭力紧固件）

该套件的设计符合原厂规格，可确保精确的气门正时控制和可靠的发动机性能。

凸轮轴调节器的作用

凸轮轴调节器是保时捷VarioCam可变气门正时系统的关键部件。它使发动机控制单元能够根据发动机转速、油门输入和负载情况动态调整凸轮轴正时。

通过提前或延迟气门正时，凸轮轴调节器有助于：

• 提高低端扭矩
• 增强高转速功率输出
• 优化燃油效率
• 减少尾气排放
• 保持发动机平稳运行

固定螺栓将调节器牢固地夹在凸轮轴上，确保在高发动机负荷下实现精确对准和稳定运行。

凸轮轴调节器和螺栓失效的原因

凸轮轴调节器在高油压和持续旋转应力下工作。随着时间的推移，它们可能会因以下原因失效：

• 调节机构内部磨损
• 油污或油泥堆积
• 液压压力控制失效
• 高里程磨损 激烈的驾驶条件

固定螺栓通常是扭矩屈服型紧固件，设计为一次性使用。重复使用旧螺栓会导致夹紧力不足、安装不当或在受力情况下松动。

常见的故障症状包括：

• 检查发动机指示灯亮起
• 凸轮轴位置或正时相关性故障代码
• 怠速不稳或顿挫
• 电力中断
• 定时区域发出咔嗒声
• 燃油效率降低

在严重情况下，凸轮轴正时不正确若不及时处理，会导致发动机进一步损坏。

为什么您可能需要这套凸轮轴调节器套件

如果您的保时捷 958 Cayenne 4.8 V8 或 970 Panamera 4.8 V8 或 3.6 V6 出现凸轮轴正时故障，更换调节器和固定螺栓可确保彻底可靠的维修。

这套工具包在以下情况下必不可少：

• VarioCam维修
• 正时链条保养
• 气缸盖加工
• 发动机大修
• 凸轮轴更换
• 凸轮轴正时偏差代码的诊断

安装新的调节器和新的螺栓可以保证正确的扭矩规格和长期的正时稳定性。

Complete Engine Camshaft Adjuster and Bolt Kit - Variable Valve Timing Repair Solution

This camshaft adjuster and bolt kit provides a complete solution for restoring correct camshaft timing operation on Porsche 958 Cayenne 4.8 litre V8 and 970 Panamera 4.8ltr V8 and 3.6ltr V6 engines.

Fits:

• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• Porsche 970.1 Panamera S V8 4.8L 2009-13
• Porsche 970.1 Panamera 4S V8 4.8L 2009-13
• Porsche 970.1 Panamera GTS V8 4.8L 2011-13
• Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
• Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
• Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
• Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
• Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 Executive 2014-16
• Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16

The kit includes:
2 x Camshaft adjuster unit
2 x Securing bolt (single-use torque fastener)

Designed to meet OEM specifications, this kit ensures precise valve timing control and reliable engine performance.

What the Camshaft Adjuster Does

The camshaft adjuster is a key component of Porsche’s VarioCam variable valve timing system. It allows the engine control unit to adjust camshaft timing dynamically depending on engine speed, throttle input and load conditions.

By advancing or retarding valve timing, the camshaft adjuster helps to:

• Improve low-end torque
• Enhance high-RPM power delivery
• Optimise fuel efficiency
• Reduce exhaust emissions
• Maintain smooth engine operation

The securing bolt clamps the adjuster firmly to the camshaft, ensuring accurate alignment and stable operation under high engine loads.

Why Camshaft Adjusters and Bolts Fail

Camshaft adjusters operate under high oil pressure and constant rotational stress. Over time, they may fail due to:

• Internal wear of adjustment mechanisms
• Oil contamination or sludge buildup
• Loss of hydraulic pressure control
• High mileage wear Aggressive driving conditions

The securing bolts are often torque-to-yield fasteners designed for single use. Reusing old bolts can lead to insufficient clamping force, improper seating or loosening under load.

Common symptoms of failure include:

• Check engine light illumination
• Camshaft position or timing correlation fault codes
• Rough idle or hesitation
• Loss of power
• Rattling noise from the timing area
• Reduced fuel efficiency

In severe cases, incorrect cam timing can cause further engine damage if not addressed promptly.

Why You May Need This Camshaft Adjuster Kit

If your Porsche 958 Cayenne 4.8 V8 or 970 Panamera 4.8 V8 or 3.6 V6 is displaying camshaft timing faults, replacing both the adjuster and the securing bolt ensures a complete and reliable repair.

This kit is essential during:

• VarioCam repairs
• Timing chain service
• Cylinder head work
• Engine rebuilds
• Camshaft replacement
• Diagnosis of camshaft timing deviation codes

Installing a new adjuster together with a new bolt guarantees proper torque specification and long-term timing stability.