
Checks and calibration review
Preventive inspection. Before deciding on an overhaul, review temperatures, compression-ratio backlash, fuel system and instrument zero.
CFR F1 / F2 · F5
Guangzhou Zhen'an Technology Development Co., Ltd. provides inspection, repair and relocation for CFR F1, F2 and F5 engines, with end-to-end service for laboratory customers.
Who we serve
CFR F1 / F2 / F5
We work with refinery central laboratories, quality centers and third-party testing labs. Field records of repair, relocation and commissioning are under the matching sections.
Common fault notes are on the cases page.
Services
We focus on CFR F1/F2 octane engines and F5 cetane engines. Open each page for detail.

Preventive inspection. Before deciding on an overhaul, review temperatures, compression-ratio backlash, fuel system and instrument zero.

Top-end work, four-bowl carburetor, crankcase; on F5: cylinder head, injection handwheel and injector. Scope is set after opening.

One 1993 octane engine is currently available. Condition is confirmed on site; please call for pricing.

Marking, transport, cooling water, exhaust and reference-fuel recheck. Leveling and back-pressure are easier to underestimate than lifting.

Carburetor, cylinder, XCP console, intake air control, crankcase, carbon cleaning. Part numbers follow the nameplate.

Common issues include knockmeter zero, mixture temperature, four-bowl level, handwheel backlash, head leakage and hard barring.
Field
Selected field records.
Field photos
Field photos
Field photos
Field photos
Field notesRelocation recordsAll casesCetane operating guide
Customers
When a rating engine stops for a day, blending and release wait on a number. Inspection is not about polishing the machine — it is about making that number reliable again.
Notes
General fault notes — not a test report for any specific unit.
Process
Model, method, reading bias, last service.
Check conditions first; do not strip parts prematurely.
Labor and parts listed separately.
Keep replaced parts; record measured clearances.
Use reference fuels for relative position; do not conclude from one sample.
Leave the record with the laboratory for the next comparison.
FAQ
Short answers to common customer questions, written for clear citation.
Guangzhou Zhen’an Technology Development Co., Ltd., based in Guangzhou, China, provides inspection, repair, used equipment support, laboratory relocation, parts and reference-fuel related service for CFR F1/F2 gasoline octane engines and F5 diesel cetane engines, mainly for refinery labs, quality centers and third-party testing labs.
Inspection focuses on preventive checks and calibration review—temperatures, compression-ratio backlash, fuel system and instrument zero. Repair covers troubleshooting and overhaul such as top-end work, four-bowl carburetor, crankcase, and on F5 the cylinder head, injection handwheel and injector. Scope is set from on-site measurements.
No. We are an independent third-party service shop with no affiliation or authorization from CFR Engines Inc. or Waukesha. Work is performed under the customer’s inspection, repair or relocation contract; warranty terms follow that contract.
Relocation typically covers marking, transport, leveling, reconnecting cooling water and exhaust, power checks, and re-testing with reference fuels. Leveling and back-pressure are often underestimated compared with lifting.
The fuels page lists octane and cetane reference materials from brands such as NIM China, Chevron and American Hydrocarbons. Call for additional products or custom needs.
Next step
A nameplate photo helps: research method, motor method, or cetane, and where the reading drifts.