ronhatch Posted April 3, 2015 Report Share Posted April 3, 2015 Hi all, I am about to assemble the dashboard etc. and I need the correct sequence so that I don't have to take something out to put something else in. I assume the wiper stuff first then the heater then the dash and then feed the steering column through but I thought I would ask for advice first to save filling up the swear box ! Regards Ron Hatch Quote Link to post Share on other sites
peejay4A Posted April 3, 2015 Report Share Posted April 3, 2015 That's the order I did it from memory. I also fitted a new loom before the heater went in. Quote Link to post Share on other sites
ronhatch Posted April 3, 2015 Author Report Share Posted April 3, 2015 Hi Pete, I've fitted a new loom but left it loose in case I need some slack when connecting up the electrics, the wiper wheel boxes are very fiddly so I gave them a good service as I imagine changing one would be a nightmare. I am just wary as I said of creating problems if things don't go in in the right order. Cheers Ron Quote Link to post Share on other sites
peejay4A Posted April 3, 2015 Report Share Posted April 3, 2015 Make sure that the screen washer plumbing works and isn't nipped anywhere. I had problems with a new escutcheon where a tiny piece of the hard rubber they're made of detached and partially blocked the waterway. That required gynaecological contortions to fix once it was all together. Quote Link to post Share on other sites
ronhatch Posted April 3, 2015 Author Report Share Posted April 3, 2015 (edited) Hi Pete, I was just looking at the washers, I assume the pipe run follows the wiper pipe and exits the plenum by the wiper motor is this correct? I think I will take the plastic pipe out the plenum local to each one and do the joints in the engine bay, anything wrong with this approach ? Regards Ron Edited April 3, 2015 by ronhatch Quote Link to post Share on other sites
Grahamgl Posted April 3, 2015 Report Share Posted April 3, 2015 HiRon, The plastic pipes from the washer jets are linked to "T" piece in the plenum and a plastic pipe goes from the third part of the T piece to the washer pump which is fitted in the dashboard. I am assuming that you are using the manual pump as originally fitted by Triumph. The other connection on the pump is connected to the washer bottle under the bonnet. You will need a non return valve fitted to the pick up pipe in the washer bottle. I am not sure if Triumph did so but I used a smaller internal diameter plastic pipe from the pump to the washer jets to help keep the water pressure up. Regards Graham Quote Link to post Share on other sites
ronhatch Posted April 3, 2015 Author Report Share Posted April 3, 2015 Hi Graham, I am going for an electric pump, not original I know but I want to keep all the wet out of the car and I want to keep joints in the plenum to a minimum hence a short piece of pipe into the engine bay and all the rest of the joints accessible. I can't see any problems with this but as usual I will take any advice thats on offer. Regards Ron Quote Link to post Share on other sites
stuart Posted April 3, 2015 Report Share Posted April 3, 2015 Why make more work, the pipes from the jets are joined in the plenum by a "T" and then a single pipe exits the plenum to the right of the heater box and then the pipe runs with the loom behind the heater and then in the case of original pump down to the dashboard and then from the pump to the bottle in the engine bay through the toe board. If you want to make it electric pump then run the pipe out from behind the heater and down behind the glovebox and into the engine bay and have your pump next to the bottle. I have a pump by the glove box on mine and its run quite happily like that for 21 yrs . Fit decent pipe and make sure the joints are good and it will out last you. Stuart. Quote Link to post Share on other sites
BenVer Posted April 6, 2015 Report Share Posted April 6, 2015 Hi Stuart , am reassembling my LHD TR4 after restoration and was just working on washer tubing. As you say the washer pipe exits right from the heater, I am not sure which of the holes in the bulkhead to use. One is for the washer tube I guess, and another one for the vent lid rod, right? Any indication which hole to use for the washer tube? Thx Ben Quote Link to post Share on other sites
stuart Posted April 7, 2015 Report Share Posted April 7, 2015 The washer tube hole is above the top right captive bolt for the heater and the vent flap is the one to the right and nearly level with the heater captive bolt. Stuart. Quote Link to post Share on other sites
ianc Posted April 7, 2015 Report Share Posted April 7, 2015 My manual screen washer ceased working in filthy weather (it was snowing and the motorways were covered in muck) at the end of January when my son and I were travelling some 50 miles to a motoring event in Hertfordshire. Alex's eyes being much better, he drove home in the dark whilst I tried to get some squirt out of the washer jets to remove the filth from the screen. I purged the plastic tubing and the jets of all the accumulated muck which was the result of the disintegration of the 52 year-old rubber diaphragm in the pump - this job took quite a while! Then I fitted a new manual pump from Moss - it's made to fit MGs as well, but all the necessary bits are in the kit. I like the manual pump as, by adjusting the force and the duration of the push, I can direct the jets where I want them - and it uses less screenwash! Ian Cornish Quote Link to post Share on other sites
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