Deutz — Compression pressure test

Testing & diagnosis · Cylinder unit

From a Deutz service manual covering: BF4L 1011 T, F2L 1011, F3L 1011, F4L 1011. Check it applies to your exact model before use.

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Before you start

Use compression pressure measurement for comparison only.

Procedure

Remove injectors and check valve clearance.
Insert adapter with new special sealing ring.
Fit clamping pad and tighten bolt.
Connect compression tester.
Turn engine with starter.
Compare compression pressures of all cylinders.
If pressure difference exceeds 15%, dismantle affected cylinder unit.

Tools required

Compression tester 2461 Amazon
Adapter 100090 Amazon

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

Compression pressure 25-30 Amazon eBay FridayParts $173.00 bar (F2L/F3L/F4L)
Compression pressure 22-27 Amazon eBay bar (BF4L 1011 T)
Max difference between cylinders 15%

Source: Deutz service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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