rodofcv Posted April 10, 2014 Report Share Posted April 10, 2014 Folks, I'm having a bit of trouble bleeding my January 1955 car. Bleeding the rear brakes was simple. The nipple needed a 7/16 AF spanner. When it came to the front I couldn't get a spanner of any size on the nipple. I realise that a pic would be very useful but unfortunately I must be the only person in the world not to have a digital camera. Do any of you knowledgeable guys have an inkling? Thanks Rod Quote Link to post Share on other sites
rodofcv Posted April 10, 2014 Author Report Share Posted April 10, 2014 More information on this bleeding problem. The bleed nipple is on a dog leg. This is attached to the slave cylinder by a 7/16 AF nut. At the other end of the dog leg the actual bleed nipple is attached using a tiny nut. I assume this is the nut to be released and tightened during the bleed operation. Unfortunately a 1/4 AF spanner is too small and a 5/16 AF spanner is too big. I have also tried 6mm and 7mm spanners with the same result. It's wit's end time. Yours in hope! Rod Quote Link to post Share on other sites
Fireman049 Posted April 10, 2014 Report Share Posted April 10, 2014 (edited) Hi Rod ~ May I suggest that you check with the Moss catalogue to see if you've got the correct nipples fitted. Also, why not 'phone one of the TR specialists. Tom. Edited April 10, 2014 by Fireman049 Quote Link to post Share on other sites
Lebro Posted April 10, 2014 Report Share Posted April 10, 2014 What you have described sounds more like a grease nipple ?? My belief is that the front should be the same as you have on the rear. Bob. Quote Link to post Share on other sites
peter clarke Posted April 10, 2014 Report Share Posted April 10, 2014 Early cars had BSF threads on brake pipe system. Later cars were UNF. Quote Link to post Share on other sites
vivdownunder Posted April 11, 2014 Report Share Posted April 11, 2014 On drum braked cars the rear bleed nipples were different to the front. So long since I've bled Lockheed drums that I can't recall the spanner size. Try measuring with a vernier guage or small adjustable spanner to find the size. Beware trying to undo the bleeder with an adjustable spanner though, as it might round the nut. Strangely, 10mm metric bleed nipples were used on some early cars, indicating a continental maker. Viv Quote Link to post Share on other sites
rodofcv Posted April 11, 2014 Author Report Share Posted April 11, 2014 Thank you gentlemen one and all. When I got the car jacked up a bit and I could see properly what I was doing the answer (as suggested by Viv - ta) was a 10mm spanner. Job done. Thanks again Rod Quote Link to post Share on other sites
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