If they look OK they probably are. Hoses are made of superior materials to those 30 or 40 years ago and last possibly 10 times as long, unfortunately they are also about 10 times the price in real terms. If you are considering changing them - enquire the price first!

As Peter.N. says it's not like those old hoses we had on 60/70's cars which to be fair didn't need to last long because tin worm ate the rest of the car anyway.

Leave them alone! The hoses and fan belt on my 1980 TR7 will be 40yrs old this year. The bottom hose still has the remains of the original red white and blue paper 'unipart' sticker stuck on it. Engines of intelligent observant drivers are hardly ever killed by a sudden massive loss of coolant (hot little modern turbos perhaps excepted). It is gradual loss from tiny leaks that used to catch people out before the days of coolant level sensors.

Edited by John F on 02/02/2020 at 08:41

How much do you use your TR7 though?

At least every two weeks - more often in the summer. It has never been 'off the road' for any significant length of time. But it has only done a mere 70,000 miles. However, I don't think that high mileage would accelerate hose deterioration. It would take millions of miles/hours of water flow to erode the inner surface!