ACL Duraglide Main Bearings 5M1937 – Honda F20A, F22A, H22A, H23A
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ACL Duraglide Main Bearings 5M1937 – Honda F20A, F22A, H22A, H23A
ACL Duraglide main bearing set 5M1937 for Honda F20A, F22A, H22A, and H23A engines with a 50 mm crankshaft journal. Fits Honda Accord and Honda Prelude models. The Duraglide coating reduces friction and improves oil retention during cold starts, providing reliable lubrication for high-performance and rebuilt engines.
Applications
| Model | Engine |
|---|---|
| Honda Accord | F20A, F22A |
| Honda Prelude | H22A, H23A |
When to Replace
- Low oil pressure after engine warm-up
- Metallic knocking from the lower engine block (crankshaft area)
- Copper or metal flakes in the engine oil
- Loss of bearing clearance found during a rebuild measurement
Installation Tips
- Measure crankshaft journals with a micrometer and verify bearing clearance with Plastigauge before final assembly.
- Keep bearings in their packaging until installation to protect the Duraglide coating from contamination.
- Lubricate bearing surfaces with assembly lube or clean engine oil before torquing main caps.
- Always torque main cap bolts in the specified sequence and to factory torque specs.
- Replace main cap bolts if they are torque-to-yield (TTY) – do not reuse them.
FAQ – ACL Duraglide Main Bearings 5M1937
Do I need to check bearing clearances before installing a new set?
Yes. Even with standard size bearings, you must verify the oil clearance using Plastigauge. Tolerances vary depending on crankshaft wear and machine work.
Can I reuse my original main cap bolts?
If your engine uses torque-to-yield (TTY) bolts, they must be replaced. Reusing TTY bolts risks improper clamping force and bearing failure.
Is this set suitable for an overbored or reground crankshaft?
This is a standard size set for a 50 mm standard journal. Undersized bearings are required for a reground crankshaft.
