Camshaft line, Left. Porsche 911 1978-89  ❭  9301073471Y

Left Hand Cam Line, For Cars With Tensioners Upgraded.
The OE Match Left Hand Cam Line for Cars with Upgraded Chain Tensioners is a high-quality replacement oil feed line designed specifically for the left-hand side of Porsche engines equipped with pressure-fed hydraulic chain tensioner upgrades. This vital oil line delivers pressurised engine oil directly to the left-hand chain tensioner, ensuring consistent chain tension and reliable valve timing performance.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)  

Diagram Ref No 1

Manufactured to OE specifications, this replacement cam line offers precise fitment, durability and dependable oil delivery under demanding engine operating conditions. It is an essential component for maintaining the effectiveness of the upgraded chain tensioner system commonly fitted to classic Porsche 911 models.

What This Product Does:

• Supplies pressurised engine oil to the left-hand hydraulic chain tensioner.
• Maintains correct timing chain tension throughout the engine's operating range.
• Supports accurate valve timing and engine efficiency.
• Helps reduce timing chain vibration and movement.
• Forms part of the upgraded pressure-fed chain tensioner system.
• Contributes to the long-term reliability of the engine timing assembly.

Symptoms Of Wear Or Failure:

• Oil leaks around the left-hand cam housing or timing chain cover.
• Oil seepage from unions, fittings or pipe connections.
• Corrosion, cracking or physical damage to the oil line.
• Reduced oil flow to the hydraulic chain tensioner.
• Timing chain rattle, particularly during start-up.
• Increased engine mechanical noise.
• Oil contamination around surrounding engine components.
• Premature wear of timing chain tensioner components.

Why Replacement Matters:

• The left-hand cam line operates in a high-temperature, high-vibration environment and is subjected to constant oil pressure. Over time, ageing, corrosion and fatigue can weaken the line or its fittings, resulting in oil leaks or restricted oil flow.
• A failing cam line can reduce the effectiveness of the hydraulic chain tensioner, potentially allowing excessive timing chain movement and accelerated wear of critical engine components. In severe cases, inadequate tensioner operation may affect engine timing accuracy and reliability.
• Replacing a worn or damaged left-hand cam line helps maintain proper oil delivery to the chain tensioner system, reduces the risk of oil leaks and supports reliable engine timing performance. An OE Match replacement restores the integrity of the lubrication circuit and helps protect valuable Porsche engine components from unnecessary wear.

Related reference numbers
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9301073471Y

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