SeanF Posted November 16, 2015 Report Share Posted November 16, 2015 Hello all, I wonder if I could ask some advice please. One of the little stub outlet drain pipes from the plenum and to which the rubber hose is attached is not in great shape and needs to be replaced. Can anyone help me with: 1. What type of pipe to replace it with and where to get it? 2. What is the best way to remove the rusty pipe? and 3. How best to stick the new pipe in given that I do not have brazing capability. Is there a strong adhesive that can be used? Many thanks, Sean Quote Link to post Share on other sites
stuart Posted November 16, 2015 Report Share Posted November 16, 2015 1/2" Copper pipe and Araldite it in.Make sure you dont have too much protruding into the plenum or you will always have water laying around it. Stuart. Quote Link to post Share on other sites
SeanF Posted November 16, 2015 Author Report Share Posted November 16, 2015 Thanks Stuart. Can I just drill the old stub out ? Quote Link to post Share on other sites
RogerH Posted November 16, 2015 Report Share Posted November 16, 2015 Hi Sean, if you do use the copper pipe then consider peening apprx 1/8" of one end over (to form a flange) so that it can sit in the sump without falling out - then araldite. Roger Quote Link to post Share on other sites
stuart Posted November 16, 2015 Report Share Posted November 16, 2015 Thanks Stuart. Can I just drill the old stub out ? Its only brazed in so carefully yes but check how good the metal around it is otherwise youre going to open a whole new can of worms. Stuart. Quote Link to post Share on other sites
Lockley210 Posted November 16, 2015 Report Share Posted November 16, 2015 (edited) . Edited November 16, 2015 by Lockley210 Quote Link to post Share on other sites
Lockley210 Posted November 16, 2015 Report Share Posted November 16, 2015 Can of Worms like this http://i952.photobucket.com/albums/ae7/mark50lockley/Plenum%20Drain%20Tubes/IMG_6764_zpspsjcvewh.jpg~original Plenum opened up and sand blasted http://i952.photobucket.com/albums/ae7/mark50lockley/Plenum%20Drain%20Tubes/IMG_6763_zpsqi8x0hzk.jpg~original Lead Loaded repair http://i952.photobucket.com/albums/ae7/mark50lockley/Plenum%20Drain%20Tubes/IMG_6867_zpsa7czaqop.jpg~original Drain tubes with funnel in place http://i952.photobucket.com/albums/ae7/mark50lockley/Plenum%20Drain%20Tubes/IMG_7266_zpsqirissdm.jpg~original Rubber blanking plates for access, At least I dont have wet feet now http://i952.photobucket.com/albums/ae7/mark50lockley/Plenum%20Drain%20Tubes/IMG_7200_zpsammhbjyo.jpg~original Cheers Mark Quote Link to post Share on other sites
SeanF Posted November 16, 2015 Author Report Share Posted November 16, 2015 Thank you all. Quote Link to post Share on other sites
RogerH Posted November 17, 2015 Report Share Posted November 17, 2015 Hi Sean, if you can't braze the tube into place how about soldering. If you can 'tin' the steel then soldering would be simple Roger Quote Link to post Share on other sites
SeanF Posted November 17, 2015 Author Report Share Posted November 17, 2015 Thanks Roger. I suspect that when the old piece is taken out the surrounding metal will be covered with brazing which is impossible to remove? Can this be soldered over? Sean Quote Link to post Share on other sites
RogerH Posted November 17, 2015 Report Share Posted November 17, 2015 Hi Sean, I would have thought braze would solder pretty well. You could simply try heating it and running some plumbers solder over it (don't forget the flux) If the solder works then off you go. If not then try to 'tin' it. Roger Quote Link to post Share on other sites
SeanF Posted November 17, 2015 Author Report Share Posted November 17, 2015 Thanks Roger. I'll give it a go. Sean Quote Link to post Share on other sites
stuart Posted November 17, 2015 Report Share Posted November 17, 2015 As long as its clean you can solder to braze easily. Tin it with some solder paste first for ease. Dont get lead free though. Stuart. Quote Link to post Share on other sites
tonytr Posted November 18, 2015 Report Share Posted November 18, 2015 Just done both my Plenum drains Horrible job ended up getting a welder in and cutting both corners out in inserting new metal and drain tube all done now and protected inside and out Happy its now done but a lot of kit to remove to get at the plenum (I dont want to do this job again) Regards Tony Quote Link to post Share on other sites
SeanF Posted November 19, 2015 Author Report Share Posted November 19, 2015 Hi Tony. How did you protect the inside? Thanks, Sean Quote Link to post Share on other sites
tonytr Posted November 19, 2015 Report Share Posted November 19, 2015 Hi Sean I was unlucy in that the plenum has burst out in to the engine bay. After cutting this out it gave me access to paint the inner side repair with hydrate 80 but I am sure their are plenty of metal protection soloutions you can use. I am about to now spray the whole cavity through the vent flap with an airline and spraygun with hose attached using waxoil. I am sure if you remove the Wiper access panels you can get further access to plenum drail area but will still be tricky I used a small paint brush the apply libral amount of hydrate to inside the drain tube. Thanks Tony Quote Link to post Share on other sites
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