1963 MG MGB Problems: 1 Known Issue
1963 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1963 MG MGB has 1 documented issue. None of the listed issues is rated critical; this is not a complete reliability assessment. Across all issues with published estimates, repair costs range from $200 to $1,800. DIY maintenance guides at au7o.io.
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Frequently Asked Questions
What are the most common MG MGB problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1963 MG MGB has 1 documented issue. The documented issue is: Three-Main-Bearing Rear 'Scroll Seal' Always Weeps Oil. None are rated critical, but regular maintenance is recommended.
Is the MG MGB reliable?
The 1963 MG MGB has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common MG MGB problems?
Repair costs for known MG MGB issues range from $200 to $1,800, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 1962-1964 MG MGB Three-Main-Bearing Rear 'Scroll Seal' Always Weeps Oil?
Early MGBs (1962 to early 1964) use the three-main-bearing 18G/18GA B-series. Its crankshaft has a flange at the rear that physically prevents fitting a modern lip seal, so the factory sealed the rear main with a 'reverse scroll' — a machined thread that pumps oil back toward the… Repairs typically run $200-$1,800. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.