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MOTRS

T-Type (TC/TD/TF)

1945-1955 / Roadster / United Kingdom

All T-Type (TC/TD/TF) problems All workshop issues
Critical Engine, XPAG/XPEG (1,250cc/1,466cc Inline-4)

Overheating

Symptoms

Coolant temperature climbs above normal, particularly in slow traffic or on hot days. Steam from the overflow. In severe cases, the engine boils over.

Cause

The XPAG cooling system was designed for English weather, mild temperatures and damp air. Australian summers overwhelm the original radiator's capacity. Blocked radiator core tubes, a worn water pump, collapsed hoses, and incorrect ignition timing all contribute. The original thermo-siphon cooling on very early engines (pre-TC) relied on natural convection rather than a pump, which is hopelessly inadequate.

Fix

Flush and test the radiator.

If the core is blocked, have it re-cored or fit a new core with improved tube density.

Check the water pump for leaks and impeller wear.

Fit a thermostat if one isn't present (some owners remove them, which actually makes overheating worse by allowing coolant to flow too quickly through the radiator).

An electric fan behind the radiator is a popular and effective upgrade for Australian conditions.

Cost: $200-$500 depending on what's needed.

Cost mentioned in fix
Cost: $200-$500

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// More T-Type (TC/TD/TF) problems

Other known issues

Minor Engine, XPAG/XPEG (1,250cc/1,466cc Inline-4)

Oil Leaks, Everywhere

Oil weeps from every gasket surface, rocker cover, timing cover, sump, rear main seal, and anywhere two castings meet. The area beneath a parked T-Type will have oil spots. Some engines leak enough to require topping up between services.
Critical Engine, XPAG/XPEG (1,250cc/1,466cc Inline-4)

Low Oil Pressure (Worn Bearings)

Oil pressure drops below 40 psi at cruising speed when warm, or below 15 psi at idle. A knocking sound from the bottom end, particularly under load, confirms the diagnosis.
Common Engine, XPAG/XPEG (1,250cc/1,466cc Inline-4)

Dynamo (Generator) Failure

The charge warning light stays on above idle, the battery goes flat, and electrical accessories dim. In some cases, the dynamo seizes and the drive belt snaps or glazes.
Common Engine, XPAG/XPEG (1,250cc/1,466cc Inline-4)

Timing Chain Stretch

A rattling noise from the front of the engine, particularly on startup or at idle. The engine may feel down on power and the timing may wander.
Minor Wooden Body Frame

Rot in the Ash Frame

Doors don't shut properly or are misaligned. Body panels flex when pushed. Gaps between panels are uneven. The body feels "soft" when jacked up. In severe cases, the body visibly sags or the scuttle area cracks.
Minor Wooden Body Frame

Body Flex

The body creaks and flexes over bumps. Doors pop open over rough roads. Scuttle shake (the windscreen frame vibrates relative to the body) is noticeable.
View all 15 T-Type (TC/TD/TF) problems