Taffius Posted February 28, 2016 Report Share Posted February 28, 2016 Hi all, Help required warning. After a time away and it feeling like spring today I thought I would blow the cobwebs off the car and have a spin. First turn left and I noticed indicator light on dash stayed on and it did not repeat. Got home and found front indicator stays on, rear does not indicate at all! Rear bulb is intact and cleaned its contact however it still does not work. At one point I had the brake lights come on when I put the indicator on but that did not come back after a while of testing. I do not know much about wiring gremlins so has anyone experienced this before? Is there an issue with the repeater, an earth issue or a front bulb issue? Hopefully someone has seen this before and its an easy fix or find! Any help much appreciated! Link to comment Share on other sites More sharing options...
John Bonnett Posted February 28, 2016 Report Share Posted February 28, 2016 Many electrical faults are due to poor earthing and in this case it might be worth checking the earth on the rear lights. Link to comment Share on other sites More sharing options...
dougbgt6 Posted February 29, 2016 Report Share Posted February 29, 2016 The bulbs are easily tested with a meter, but I would suspect the earth. There are two sorts of bulb holder. The newer one has live and an earth terminals, the older just a live terminal and it relies on the body of the holder to earth to the body of the car. The older ones, I think, are more troublesome but there's a lot of head scratching if you replace an old one with a new one and don't know the difference! Don't ask how I know! Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 29, 2016 Report Share Posted February 29, 2016 dougs spot on the mix and match different generations of claw holder needs a fes asprins and strong tea add in offset pin stop tail twin filiaments with singles and mix and n=match the bulbs in as equally daft mixed up oder and you get a christmas tree effect I would pull all the claw holders and look for what type of earth does it need and has it got an earth is it wired earth (ye ha!) no not wyatt erp or the claws the earth, then is the lamp housing earthed . look down the bulb holder there is a thin spring copper that makes earth to the bulb case,.. is it making contact this is a great fun job while the suns out . theres plenty of Tee shirts for this little wonder Pete Link to comment Share on other sites More sharing options...
Taffius Posted March 5, 2016 Author Report Share Posted March 5, 2016 Pete/Doug/John, Many thanks for replies and taking time to help and sorry for acknowledging that as have been away. I will check the earthing thanks. It is a claw type with a pin at bottom so with take out claw holder and have a good look around. Not gone back to this yet. On another topic are windscreen wipers notorisly slow on all models? Also have no windscreen washer. Just looking at things that MOT might pick up!!!! Thanks again... Link to comment Share on other sites More sharing options...
dougbgt6 Posted March 5, 2016 Report Share Posted March 5, 2016 My windscreen wipers have two speeds, slight mist and slow drizzle. I don't know if the 1500 has an electric pump but if it is the same as the GT6 it's hand-drolic, you push the button and pump the water out. If it's the same it maybe that the one way valve in the bottom of the water bottle is, no more. Link to comment Share on other sites More sharing options...
Taffius Posted March 5, 2016 Author Report Share Posted March 5, 2016 Doug, That brought a smile to face, very funny! Obviously still plenty to learn with the car....my wipers are so slow I expect them to stop at any minute but they keep going, sort of! Thanks again Link to comment Share on other sites More sharing options...
John Bonnett Posted March 5, 2016 Report Share Posted March 5, 2016 Electric washer pump on the 1500 and the wipers should be two speed. I've got the same set up on my car ad the wipers are quite acceptable. The wiper motor earth is the black cable with an eyelet that screws into the scuttle. It is possible that this is corroded and may well account for the wipers moving slowly. Link to comment Share on other sites More sharing options...
rlubikey Posted March 6, 2016 Report Share Posted March 6, 2016 Alternatively, the wiper motor may need an overhaul - new brushes and clean the carbon from between the commutators. Someone on the TR Register forum posted a How To, but I can't find it now. Richard Link to comment Share on other sites More sharing options...
Taffius Posted March 13, 2016 Author Report Share Posted March 13, 2016 Thanks John & Richard, Found a small washer pump along the washer pipe so either another earth issue or pump or switch. Also progress on rear indicator fault - got it back working, but now I have no brake lights! Start of a work list already. Thanks all for the contributions. Link to comment Share on other sites More sharing options...
anonymouse Posted March 15, 2016 Report Share Posted March 15, 2016 Hi, similar problem, indicator light comes on but no flash, hazard warning lights work ok as does the alarm when arming and disarming, all four light flash, except when used in the indication mode left or right they just stay on when selected. The feed from the hazard warning switch appears ok as the horn and brake lights operate and the indicators signal but do not flash. On later Spitfires one flasher unit is used for hazards and indicators, although the Haynes and BL manuals wiring diagrams don't show this! As a precaution the flasher unit has been replaced. Help Please!!!!!!!! Link to comment Share on other sites More sharing options...
Pete Lewis Posted March 15, 2016 Report Share Posted March 15, 2016 What happens if you apply brake lights and flasher if they all get mixed up or go dim you have earthing problems also check the flasher bulb wattages are 21w pete Link to comment Share on other sites More sharing options...
anonymouse Posted March 15, 2016 Report Share Posted March 15, 2016 Thanks for that, will check it tomorrow. Link to comment Share on other sites More sharing options...
Pete Lewis Posted March 15, 2016 Report Share Posted March 15, 2016 As for slow wipers theres the motor gearbox grease has dried up, likewise the rack spiral and tubes need a grease up buy withdrawing the rack, its also worth turning the rack over and repositioning the wheel box gear, remove the wiper arms, attach a card needle with blue tac , to point up. pull the rack when you grease and refit it turn the wheel box so when youmrefit it ends up points down so then rack now runs on unworn teeth alway check the spindles run freely when the rack is out pete Link to comment Share on other sites More sharing options...
anonymouse Posted March 17, 2016 Report Share Posted March 17, 2016 Hi Pete I have checked what you suggested unfortunately no joy, I have some friends coming to have a look tonight, so fingers crossed between us we hopefully will crack the problem will let you know. Bill Link to comment Share on other sites More sharing options...
anonymouse Posted March 20, 2016 Report Share Posted March 20, 2016 Hi Pete, have got to the problem with the indicators, the Haynes manual stated that there was a combined flasher unit for hazards and indicators in fact there are two we located the second indicator unit which was found to be defective. When replaced,indicators okay. Thanks for your concern. Bill Link to comment Share on other sites More sharing options...
Pete Lewis Posted March 21, 2016 Report Share Posted March 21, 2016 wink wink then glad its sorted Link to comment Share on other sites More sharing options...
Taffius Posted April 3, 2016 Author Report Share Posted April 3, 2016 Thanks all, I found a bad earth on the opposite side of problem (drive side brake light earth) and all works now. Blinky and Stoppies. However time to move to a new forum as I have taken it out today and when accelerating I am experiencing spluttering - I think running it on low fuel might have cost me some dirt in something or other electrical / firing issues. Thanks again though for all the help here! Link to comment Share on other sites More sharing options...
Nonokai Posted January 18, 2017 Report Share Posted January 18, 2017 Useful info in this thread as I have both indicator and wiper problems with my 2500S. Indicators flash when first used for about 5 secs then stay on until cancelled. From then on in that journey they just stay on when indicating, but do not flash. For a while the fuse would blow stopping all that circuit (wipers, indicators, fuel, temp gauges etc). I replaced the hazard switch and wiper parking switch which seemed to cure the blowing fuse... until yesterday. I know I need to check all indicator and brake light earths, and should lubricate the wiper wheel boxes (tip from Mr Witor) and (from this thread) the whole wiper rails mechanism etc. Just for my info does the 2500S also have two flasher units? I can only see one, which has been replaced, but did not fix the non-flashing problem. Bit of a problem as my wife refuses to drive it without indicators or wipers! Link to comment Share on other sites More sharing options...
Pete Lewis Posted January 18, 2017 Report Share Posted January 18, 2017 from the wiring 2500s diagram yes there is a hazard and flasher as separate units do check the dual filiament bulbs 5/21w are in ok/ right way round for stop tail and the flashers are all 21w and the claw fittings are making an earth in the boot. also delete the nigh dimmer in the boot rear wheel arch if its fitted, easy to bypass join all like colours and ditch the earth pete dont see one on the 25s diagram so youre lucky Link to comment Share on other sites More sharing options...
Mjit Posted January 19, 2017 Report Share Posted January 19, 2017 First off I'd replace the mechanical flasher unit for a modern, 3 terminal electronic one. Much more reliable, more consistent flash rate and also a little more tollerent to bad earths (as it's electronically timed rather than relying on current through the circuit to heat up a bi-metalic strip). also delete the nigh dimmer in the boot rear wheel arch if its fitted, easy to bypass join all like colours and ditch the earth Easier than that to disable the night dimming relay. No need to bypass all the joints, just pull of the relay's earth lead. With no earth the relay circuit will never complete so you're always in 'day' mode. Link to comment Share on other sites More sharing options...
Nonokai Posted February 10, 2017 Report Share Posted February 10, 2017 Thanks for your advice. Apologies for not acknowledging earlier. I have checked all indicator bulbs and earths, cleaned up and they all seem fine to me. Indicators still staying on after about 10 secs. Could not find the other flasher unit, only the one I have previously replaced by the fuses behind the card backing for the shelf under the glove compartment. Sorry to be thick, but can you point me to the other unit? Also, do I take it that my 2500S does not have a night dimmer switch in the boot rear wheel arch (as I could not find that either!). Thanks. Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 10, 2017 Report Share Posted February 10, 2017 it probably doent have one just when these problems pop up it a component that can make headaches Pete Link to comment Share on other sites More sharing options...
Nonokai Posted March 4, 2017 Report Share Posted March 4, 2017 Thanks for all advice on this. Still have "flasher staying on and not flashing" problems. Fuse has blown again too after a few months of no blowing. Can someone be so kind as to direct me to the location of the second flasher unit for my 2500S? Thanks. Link to comment Share on other sites More sharing options...
Pete Lewis Posted March 4, 2017 Report Share Posted March 4, 2017 Found a clip on the back of the glove box on my mk2 not used but its flasher can sized If you have two,,,,,,, one is for hazards....... do they work ??? Link to comment Share on other sites More sharing options...
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