401 engine gurus in Somerset?

[Michael English]

I have a 1952 401 which is blowing a bit of smoke, and feels a bit low on power once it gets to 60MPH. I have replaced much of the ignition & fuel system but now fear rings or valves or worse.

Can anyone recommend a Bristol 6 cyl whizz not too far from Yeovil/Taunton? I'm told there may be someone in Mere & Cricklade (Wilts) but am hoping for someone a bit closer.

Thanks in advance.

[Ronald G. Stephenson]

Before doing anything else, take the car to a competent shop and ask for a compression test of all the cylinders. The factory service manual should give that specification, but without that data, look for about 150 PSI as a starting point, perhaps lower, but all cylinders should be within 15 pounds of each other. Now, it the compression is good, then it may be a simple matter of the engine not getting enough fuel or air. Could be the carbs or just the fuel pump or a clogged filter.

[Ronald G. Stephenson]

Footnote on the bit of smoke out the back: It may simply need new valve seals. A bit of a job for a good mechanic, but much cheaper than an overhaul of the engine. Good luck.

[Calibrator]

If, and it is an if, you require a Bristol specialist my view is to use Spencer Lane Jones in Warminster. Yes he may be a way away from you, he probably isn't the cheapest you'll find, but had two of my friends gone to him at the onset of problems as I advised, they would have saved thousands between them.

I sent a 603 to him years ago, a fair amount later spent on the suspension, work I couldn't even see, the car was literally transformed.

I can't commend his company highly enough. Worth every penny.

And no, I'm not on commission!