What are the common problems with the MG MGA's engine and how can I fix them?

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Accepted Answer

The MG MGA's 1622cc inline-4 engine is generally reliable but has known issues:

1. **Low Compression**
   - *Cause*: Worn piston rings or valves (common in original engines).
   - *Fix*: Cylinder compression test and rebuild if needed. [MGA Guru guide](https://mgaguru.com/mgtech/care/cf106.htm).

2. **Timing Belt Failure**
   - *Cause*: Belts degrade over time (replace every 60k miles).
   - *Fix*: Replace with genuine parts. [Workshop manual](https://www.manualslib.com/manual/1756361/Mg-Mga-Twin-Cam.html).

3. **Carburetor Tuning**
   - *Cause*: Fuel mixture imbalances cause poor idling or power loss.
   - *Fix*: Adjust or replace SU carburetors. [Restoration tips](https://universitymotors.online/restoring-an-mga/).

4. **Ignition Timing Issues**
   - *Cause*: Distributor misalignment after rebuilds.
   - *Fix*: Verify timing with a strobe light. [Forums](https://www.mgexp.com/forum/mga-forum.2/rebuilt-engine-problems.3142440/).

Your 1962 MGA is 'highly original'—consider professional inspection for carburetor calibration and compression testing. For similar vehicles, see [Classic.com MGA Market](https://classic.com/m/mg/a/mk-ii/).

Lot 101143: 1962 MG A MK II

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Lot 101143: 1962 MG A MK II

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