Post-Winter Austin Healey Maintenance Tips

Posted: Tuesday, 10 March 2026 @ 15:54

Two Austi n Healey cars in storage, ready for driving in the new Spring season

From Winter Storage to Spring Roads: 5 Essential Checks Before You Drive

After a long winter lay-up, it pays to give your Austin Healey, Sprite or MG Midget a proper once-over before the first decent run of the season. A car that has been standing for weeks or months can develop flat batteries, stale fuel, tired hoses, sticky brakes and other little surprises that tend to appear just when you are feeling most optimistic.

This guide covers five practical post-winter maintenance checks to help you get back on the road safely and confidently. It is written for both new and experienced owners, with advice that applies across Big Healey and Sprite-based cars alike, without pretending every model uses exactly the same settings. That way lies confusion, bad language, and sometimes a tow truck.

If your car has been stored over winter, this is the sensible place to start before you turn the key and hope for the best.

Uprated 12-volt battery for Austin Healey

1. Recharge the Battery and Check the Electrics

Winter storage is rarely kind to old batteries. If you disconnected the battery before laying the car up, reconnect it and inspect the terminals and cables for corrosion, looseness or cracked insulation. A white or green crust around the terminals is a sure sign the connections need cleaning before you go any further.

Check the battery charge with a multimeter if you have one. A fully charged 12-volt battery should usually show around 12.6 volts at rest. If your car uses a twin 6-volt setup, as found on some Big Healey models, each battery should be checked individually. If the battery is weak, charge it slowly with a suitable charger. If it will not hold charge properly, replacement is the sensible answer.

For owners of Big Healeys, we offer uprated 6-volt batteries for models that use a twin 6-volt arrangement, and an uprated 12-volt battery for later cars using a single 12-volt system.

Once the battery is sorted, test the rest of the electrics. Check the sidelights, headlights, brake lights, indicators, wipers, horn and ignition warning light. It is also worth checking the fuse box and gently cleaning any dull or oxidised fuse contacts. Many a springtime electrical fault turns out to be a simple connection issue rather than anything especially theatrical.

Good electrics mean easier starting, better visibility and one less reason to end up parked at the roadside with the bonnet up.

Benefits

Reliable starting after winter storage, whether you own a Big Healey, Sprite or Midget.
Safer road use with lights, indicators, horn and wipers working as they should.
Fewer irritating electrical faults caused by dirty terminals, tired batteries or corroded fuse contacts.

Summary:

Make sure the battery is properly charged, the terminals are clean, and all basic electrics are working before the first drive of the season.

2. Change the Engine Oil and Filter

If your car has been sitting for months, fresh oil is one of the smartest jobs you can do before using it properly again. During storage, oil can absorb moisture and hold contaminants that you do not want circulating through the engine once everything wakes up.

If possible, warm the engine only briefly before draining the oil, just enough to help it flow more easily. If the oil is very old or you are not sure of its condition, it is perfectly reasonable to drain it cold and change it anyway. Replace the filter at the same time. Depending on the model and setup, that may mean a traditional filter element or a spin-on filter if the car has been converted.

For Big Healey owners, we stock replacement options including an oil filter element and a spin-on oil filter conversion kit. Refill with the correct grade of quality classic oil, such as Castrol Classic 20W50 where appropriate for your engine and usage.

Once filled, check the dipstick level carefully. After the first short run, check it again and inspect for any seepage around the filter housing, drain plug and oil lines. A small leak discovered at home is merely annoying. The same leak on a hot run is a very different sort of entertainment.

Fresh oil and a fresh filter are simple preventative maintenance, and they give any A-series or C-series engine a far better start to the season.

Benefits

Better lubrication: Fresh oil protects bearings, cam surfaces and other internal parts after a long lay-up.
Cleaner running: Replacing old oil and the filter removes moisture and contaminants that can build up during storage.
Useful peace of mind: You begin the season knowing one of the most important service jobs is already done properly.

Summary:

Replace old engine oil and the filter before regular use, then recheck the oil level and look for leaks after the first short run.

3. Inspect the Cooling System, Hoses and Belt

Whether you drive a Big Healey on summer tours or a Sprite or Midget on weekend runs, cooling system condition matters. Start by checking the coolant level only when the engine is cold. If the level is low, top up with the correct coolant mix. If the coolant is old, rusty-looking or you do not know when it was last changed, a drain and refill is well worth doing before regular spring and summer use.

Next, inspect the hoses carefully. Look for cracks, surface crazing, soft spots, bulges or staining around the joints. Pay attention to radiator hoses, heater hoses and smaller bypass or connecting hoses where fitted. If the rubber feels suspiciously hard, sticky or tired, replace the hose rather than trusting it to survive the first warm day in traffic.

For owners looking for a more durable option, our article on Austin Healey Kevlar hoses explains the benefits of modern reinforced hose construction over ageing standard rubber.

Then check the fan belt or drive belt for cracks, fraying and correct tension. A loose belt can reduce charging and cooling efficiency. An over-tight one is no favour to bearings either. Aim for sensible tension according to your workshop manual and inspect the pulleys while you are there.

A sound cooling system is one of the easiest ways to avoid preventable spring breakdowns, especially once traffic, warmer weather and optimism all arrive at once.

If there has been any sign of coolant loss, dried antifreeze staining or dampness around clips and joints, deal with it now rather than hoping it will improve on its own. It will not. Also check the radiator cap seal and the condition of the water pump area for staining or wobble. These are the sort of small checks that can save a very large interruption to a good day out.

Benefits

Lower risk of overheating: Fresh coolant, healthy hoses and correct belt tension help the whole system do its job properly.
Better reliability: Replacing tired hoses before they fail is far preferable to steaming gently at the roadside.
More confidence in traffic: A checked cooling system makes spring and summer driving much less stressful.

Summary

Check the coolant, inspect every hose, confirm the belt condition and tension, and deal with any leaks before the first serious run of the year.

4. Check the Brakes, Fluid and Flexible Hoses

Brakes are the one system you really do not want to leave to chance after winter storage. Brake fluid absorbs moisture over time, which can lead to internal corrosion, reduced performance and a poor pedal feel. Start by checking the fluid level and condition in the reservoir. If the fluid looks very dark, contaminated or unknown in age, it is wise to replace it rather than simply topping it up and hoping for the best.

Press the brake pedal firmly a few times before moving the car. It should feel solid and consistent, not spongy, and it should certainly not sink away under pressure. If it feels wrong, stop there and investigate before attempting any road use.

Inspect the flexible brake hoses for cracking, age-hardening or dampness. If you can see the pads through your wheels, check that there is still a sensible amount of friction material left. On drum-braked cars, external checks are more limited, but brake feel, fluid condition and visual inspection for leaks still tell you a great deal.

If the system needs bleeding and you are happy doing the job yourself, our Gunson Eezibleed Kit is a handy internal solution for single-person brake bleeding. If you are not confident bleeding the system correctly, this is one of those jobs worth handing to an experienced mechanic.

Before your first proper drive, do a cautious brake test at low speed in a safe area and confirm the car stops cleanly and straight.

Do not forget the handbrake. After a winter lay-up, it is worth checking that it releases and re-engages properly and that the linkage has not become stiff or partially seized. A handbrake that behaves oddly is often trying to tell you something before the rest of the car joins in.

Benefits

Safer stopping: Clean fluid, sound hoses and a firm pedal help your car stop as confidently as it goes.
Early fault detection: Leaks, tired hoses and poor pedal feel are far easier to sort in the garage than after the first junction.
Useful owner confidence: Knowing the brakes have been checked properly makes the first run much more enjoyable.

Summary

Inspect the brake fluid, test the pedal feel, check the hoses and confirm safe operation before taking the car back onto the road.

Chrome wire wheel mounted on a Firestone display stand

5. Check Tyres, Wheels and Tyre Pressures Properly

Tyres often lose pressure while a car is standing, and they can also age far more than they wear on low-mileage classics. Start by checking all four tyres and the spare with a reliable pressure gauge. Do not assume one pressure suits every Austin Healey, Sprite or Midget. The correct setting varies by model, wheel and tyre type, so use your handbook or trusted tyre guidance for your exact car.

Then inspect the tyres closely for sidewall cracking, perishing, flat spots, cuts or other visible damage. A tyre may still have plenty of tread and still be unfit for proper road use if the rubber has hardened with age. That matters just as much on a Big Healey as it does on a lightweight Sprite or Midget.

Check the wheels while you are there. On wire-wheel cars, look for damaged or loose-looking spokes, worn splines or obvious movement where there should not be any. On steel or disc wheels, check the wheel nuts, rim condition and valve stems. If the car has been standing for months, a brief rolling inspection in the garage can also reveal a brake that is binding or a tyre that has gone slightly out of shape.

Good tyres and sound wheels transform how any classic feels on the road, and they are not the place for guesswork or false economy.

Benefits

Safer handling: Correct pressures and healthy tyres improve grip, steering response and braking.
Better ride quality: A well-prepared set of tyres helps the car feel more settled and predictable after storage.
Fewer unpleasant surprises: Catching cracks, flat spots or wheel issues early is much cheaper than dealing with the consequences later.

Summary

Check the tyre pressures against the correct guidance for your exact model, inspect every tyre for age or damage, and make sure the wheels are sound before driving.

Bonus Check: Fresh Fuel, Fuel Hoses and a Sensible First Start

If the petrol has been sitting in the tank for months, it may have gone stale, especially if the car was stored with little fuel and no stabiliser. Topping up with fresh fuel is a sensible first step. If the old fuel smells sour or varnish-like, or the car was put away for a very long period, draining and refilling may be the better option.

Check all visible fuel hoses and unions for age, cracking or dampness before you start the engine. This is particularly important on older cars that may still have elderly rubber fuel lines. If there is any doubt, replacing suspect hose with good quality ethanol-resistant fuel hose is wise. It is not glamorous, but neither is an engine bay fire.

If you are unsure how modern petrol affects older fuel systems, our guide E10 Fuel and Classic Cars: What Owners Should Know explains what Healey, Sprite and Midget owners need to watch for, including hose condition, storage considerations and fuel compatibility.

On the first start, let the fuel system prime and do not crank the engine continuously for too long in one go. Once it starts, let it settle and keep a close eye on the gauges and any signs of leaks, smoke or odd noises. Oil pressure should rise promptly and then settle into the normal range for your particular model once warm. Temperature should come up gradually and behave normally. This is one of those moments where the dashboard earns its keep.

Take the first drive gently, listen carefully, and treat the first few miles as a recommissioning test rather than an audition for Goodwood.

Benefits

Smoother recommissioning: Fresh fuel and sound hoses reduce hesitation, poor running and leak risks.
Useful early warning: A careful first start helps you spot trouble before it becomes expensive trouble.
Better long-term reliability: Gentle warm-up and a short test run help confirm everything is working as it should.

Summary

Check the fuel, inspect the hoses, start the engine carefully and use the first short drive as a calm, sensible recommissioning check.

Conclusion

With these checks done properly, your Austin Healey, Sprite or MG Midget will be in a far better position to enjoy the return of spring. None of this is glamorous, but it is the sort of practical maintenance that protects the engine, improves reliability and makes the first drive of the season much more enjoyable.

The main thing is not to rush. A careful battery check, fresh oil, sound hoses, healthy brakes, correct tyre pressures and a sensible first start will tell you far more about the car than simply turning the key and heading for the nearest café. Get the basics right now, and the rest of the season tends to go rather more smoothly.

Once everything feels right, then by all means enjoy it properly. That, after all, is the whole point.

Revive Your Austin Healey: 5 Essential Post-Winter Maintenance Tasks

From Winter Storage to Spring Roads: 5 Essential Checks Before You Drive

1. Recharge the Battery and Check the Electrics

Benefits

Summary:

2. Change the Engine Oil and Filter

Benefits

Summary:

3. Inspect the Cooling System, Hoses and Belt

Benefits

Summary

4. Check the Brakes, Fluid and Flexible Hoses

Benefits

Summary

5. Check Tyres, Wheels and Tyre Pressures Properly

Benefits

Summary

Bonus Check: Fresh Fuel, Fuel Hoses and a Sensible First Start

Benefits

Summary

Conclusion

Frequently Asked Questions

Can old petrol cause running problems in a Sprite or Midget?

Do all Austin Healey, Sprite and Midget models use the same tyre pressures?

How do I know if my brake fluid needs changing?

Is it safe to bleed classic car brakes at home?

Should I change the oil after winter storage?

What are the most common post-winter problems on classic cars?

What should I check on my Austin Healey before driving it after winter storage?

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