HOT ENGINE = POOR STARTING

[MCFADDEN]

Having solved all my previously posted problems, I thought I would indulge my wife & spend a night in a London hotel. The mode of transport.... you guessed a nice griff 500. Anyway, after an hour or so of traffic pulled up @ the side of Harrods for the wife to pop in to one of the shops. Anyway, on trying to restart the car after 10 minutes. The battery /alternator did not seem to have enough power to turn the engine over.The electric fans were on so I disconnected these to leave more power to crank the engine & sure enough it started.

This has happened on a few occasions when the engine is hot.

The battery charge is showing a healthy 14 to 15 volts normally, dropping to 12 to 13 when the fans are on.

What do you think is the problem as when not hot the car starts fine.

I have being told the alternator is ok but if so why is there not enough power in the battery to turn it over when the fans are on?

Any recommendations, as getting out to disconnect the fans is a bit of a pain & I do not like adding to the myth that TVR's are unreliable or troublesome, by being the man at the shops or petrol station with the bonnet up!

[MCFADDEN]

The problem is only when hot.

Even if I have the fans running all the time from cold by bypassing the otter switch, there is enough power to start.

Does this mean it is the starter, if so how much, where from, what type, etc.

Thanks for the help thus far.

PS - New battery less than 2 years ago