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The Volvo 9996956 Crankshaft Turning (Barring) Tool enables smooth, controlled rotation of the crankshaft on Volvo 6L & 12L engines including D9A, D12, D16C. Essential for precise timing, valve/injector adjustment, compression testing, and inspections—prevents slippage, flywheel damage, and safety risks in heavy-duty service.

The Critical Risks of Improper Crankshaft Rotation in Volvo Engines

Volvo D9A, D12, D16C engines power trucks and equipment—slipping or forcing rotation during timing/adjustment damages flywheel teeth, misaligns timing, and causes safety hazards.

• Flywheel damage – Slipping bars chip teeth, requiring $800–$2,000 flywheel repair
• Timing misalignment – Inaccurate positioning leads to $1,500–$4,000 valve/piston damage
• Incorrect adjustments – Poor rotation causes $1,000–$3,000 injector/valve rework
• Downtime losses – Manual struggles extend service 2–5 hours, adding $400–$1,000 labor
• Safety hazards – Tool slip risks injury or further damage, totaling $2,000–$6,000
• Engine failure – Severe misalignment demands overhaul ($10,000–$25,000)

What is the Volvo 9996956 Crankshaft Turning Tool?

The Volvo 9996956 Crankshaft Turning Barring Tool is a precision barring tool for controlled crankshaft rotation on Volvo 6L & 12L engines (D9A, D12, D16C).

Designed for professional service, it engages securely for smooth turning during timing, valve/injector adjustment, compression testing, and inspections—reducing slippage risk by 90% and improving accuracy in heavy-duty applications.

Complete Tool Specifications & Volvo Compatibility

Professional Features & Service Benefits

Economic Impact: Crankshaft Barring ROI

Scenario	Cost Impact
9996956 proper barring	Barring tool – $70 investment
Flywheel tooth repair	$800–$2,000
Timing/valve damage	$1,500–$4,000
Injector adjustment rework	$1,000–$3,000
Engine overhaul escalation	$10,000–$25,000
Total improper barring cost	$13,300–$34,000 per incident
9996956 ROI (first prevention)	190–486X return on investment

When Volvo Technicians Choose 9996956

• Volvo D9A crankshaft barring
• D12 timing adjustment
• D16C valve/injector service
• Heavy-duty truck maintenance
• Fleet service bays
• Compression testing
• Safety & accuracy improvement

Why Professional Shops Trust 9996956

Volvo service techs trust the 9996956 for its secure engagement, smooth control, and ability to avoid $13,300–$34,000 in damages per barring error. It delivers accurate positioning, faster adjustments, and safety shops demand.

From valve lash to timing checks, this barring tool keeps Volvo engines timed perfectly.

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