Ford Transit Workshop Case Study • Carrum Downs

Ford Transit Cylinder Head Replacement Case Study

This Ford Transit came into Progressive Vans with a suspected head-gasket/cylinder-head issue. Rather than refitting a questionable cylinder head, we removed it and had it checked for hardness and pressure integrity before deciding on the repair path.

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What We Found

Once the cylinder head was removed, it was sent for quality checks including hardness testing and pressure testing. The original head did not meet our quality standard for reuse, so we did not simply machine it and refit it.

Why we rejected the original head

The purpose of hardness and pressure testing is to confirm whether the casting is still suitable for reliable service. In this case, the head failed our checks and we considered it unsuitable to put back into a working commercial vehicle.

Workshop Photo Evidence

Ford Transit diagnosed with cylinder head or head gasket issue at Progressive Vans Carrum Downs
Ford Transit after diagnosis identified a cylinder-head/head-gasket issue requiring strip-down and inspection.
Ford Transit cylinder head removed for hardness and pressure testing
The cylinder head removed so it could be checked for hardness and pressure integrity before any reuse decision.
New replacement cylinder head fitted to Ford Transit after original head failed testing
A new replacement casting fitted after the original head failed our quality checks.

The Repair Decision

Because the original head failed our quality checks, we chose a new cylinder-head casting instead of a second-hand head. On a working commercial van, a second-hand casting can introduce another unknown into an already labour-intensive repair. Our preference in this case was to fit a new casting to give the customer a better long-term outcome.

1. Diagnose

Confirm the fault and determine that cylinder-head removal is required.

2. Remove & Test

Remove the head and assess hardness and pressure integrity.

3. Reject if Unsuitable

If the casting does not meet our reuse standard, do not refit it.

4. Fit New Casting

Install a new replacement head and complete the repair using the appropriate components and procedures.

Why We Chose New Instead of Second-Hand

For a commercial vehicle, downtime and repeat repairs can cost more than the component itself. A new casting removes much of the uncertainty that comes with a used cylinder head whose prior thermal history and service life may be unknown.

This repair is backed by our 1-year workshop warranty, giving the customer additional confidence in the work completed.

Progressive Vans workshop approach

We do not automatically reuse a major engine component just because it can be machined or physically refitted. Where testing shows a cylinder head does not meet our quality standard, we would rather replace it than build a repair around a questionable casting.

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