Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1976 MG MidgetFACTORY OEM SERVICE PROCEDURE
Crankcase Ventilation: Maintenance
- Every 12, 000 miles, check for loose, disconnected, or deteriorated hoses. Check restrictor in rocker cover purge line. Clean and replace as parts as necessary.
- To clean diaphragm valve assembly on 1974 models, remove spring clip. Remove cover plate, diaphragm, metering valve, and spring. Clean metal parts in solvent.
- Clean diaphragm with denatured alcohol. Examine parts for wear or damage. Reassemble valve making sure metering valve fits correctly in its guide and that diaphragm is fully seated. Reinstall valve and check for proper operation.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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