GrayFox Posted September 20, 2012 Share Posted September 20, 2012 I am fixing the brakes on a 1948 GUY Wolf truck. I have been unable to find any info online and need advice on how to service the rear brake slave cylinders which appear to be seized. Its been left standing for a while. I have freed off the front brakes OK and the pedal is good but there is no movement of the shoes at the rear which seems to be coupled to the handbrake linkage. Advice greatly appreciated. Link to comment Share on other sites More sharing options...
Nick Jones Posted September 20, 2012 Share Posted September 20, 2012 Does it have hydraulic cylinders in the rear wheels as well or is there a single one somewhere that pulls on the cables?Nick Link to comment Share on other sites More sharing options...
GrayFox Posted September 20, 2012 Author Share Posted September 20, 2012 Hi Nick. Its a single one each side and the handbrake rod feeds into the back of the slave cylinder. Link to comment Share on other sites More sharing options...
GrayFox Posted September 21, 2012 Author Share Posted September 21, 2012 I have spent the day working on the ns rear brakes and have managed to free up the handbrake linkages. The brakes bear some reslemblance to old Morris Minor set up - think the Arab may have air assisted ones. The slave cylinder was completley solid and I took it apart after a struggle and gave it all a really good clean - the seals were in good nick so I don't need to replace them. Tomorrow I will do the same on the rear os and then bleed the whole thing and hope its all good. My mate will be delighted. Link to comment Share on other sites More sharing options...
Tim Bancroft Posted September 22, 2012 Share Posted September 22, 2012 Dig the rad mascot! Link to comment Share on other sites More sharing options...
Nick Jones Posted September 22, 2012 Share Posted September 22, 2012 Quite a beast that...... makes ordinary tools look more suited to meccano..... Sounds like you are making good progress!Nick Link to comment Share on other sites More sharing options...
tengah spitfire Posted September 22, 2012 Share Posted September 22, 2012 Very niceThere is a web site with old tyme enthusiasts any thing from pedal cars, penny farthings to lorrys and le-mans cars.Even an 'OLD' aviation thread was started recentlyI know they would welcome you on there.http://www.oldclassiccar.co.uk/forum/phpbb/phpBB2/A lot of knowledge and help can be found in there. member from 19 - 90 year olds.Worth a look. Link to comment Share on other sites More sharing options...
GrayFox Posted September 22, 2012 Author Share Posted September 22, 2012 Thanks for the link, looks a good site so saved to Favourites for future reference.Got the o/s rear off today and was pleased to see the slave cylinder was not seized so wouldnt need dismantling. Joy shortlived though as the bleed nipple on this o/s rear is seized solid and won't budge. This means we can't bleed the brakes properly. Going back on Monday with stilsons to try to free it. Fingers crossed. Link to comment Share on other sites More sharing options...
junkuser Posted September 23, 2012 Share Posted September 23, 2012 If the hex on that bleed nipple is larger than the diameter of the nipple, it may be worthwhile putting a suitable sized piece of tube or a small socket on it, bearing on the hex part, so you can give it a tap to free it. May work.Great looking truck. Link to comment Share on other sites More sharing options...
GrayFox Posted September 23, 2012 Author Share Posted September 23, 2012 Tried that but no joy. Left it drowning in WD40 so may have luck tomorrow if the weather permits. Link to comment Share on other sites More sharing options...
Nick Jones Posted September 23, 2012 Share Posted September 23, 2012 Plus Gas MUCH better than WD40 for freeing siezed stuff........ but good luck!Nick Link to comment Share on other sites More sharing options...
GrayFox Posted September 24, 2012 Author Share Posted September 24, 2012 Success! Everything adjusted up, cleaned down, job done. Handbrake and footbrake good. Three happy Guys - me, the owner and the Wolf.Enjoyed the challenge and fortunately the weather held off.Thanks for your comments. Link to comment Share on other sites More sharing options...
junkuser Posted September 24, 2012 Share Posted September 24, 2012 And how did you get satisfaction playing with that nipple? Link to comment Share on other sites More sharing options...
GrayFox Posted September 25, 2012 Author Share Posted September 25, 2012 I bled it through the banjo. The main supply feed goes into the cylinder. Link to comment Share on other sites More sharing options...
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