RT 1006 137 Posted January 27, 2014 I tried the terminal that is supposed to supply the 12v off the solenoid and only got 9v, but never thought of trying the supply from the battery. I'll give that ago tomorrow. One other thing you could do is set your meter to resistance, put the leads across both the small terminals on the solenoid and operate the starter. This will check the auxillary contacts, you should get zero ohms, a higher resistance indicates a problem with the contacts. If you check the contacts this way it is very important that you leave the small wire that goes to the coil disconnected at the solenoid otherwise you risk damage to your meter. Quote Share this post Link to post Share on other sites
Andy I 0 Posted January 28, 2014 Hi everyone, just tryed the big wire on the starter form the battery, it's 12v and drops to 9v when cranking. Could the problem be the wire from the battery? Quote Share this post Link to post Share on other sites
Andy I 0 Posted January 28, 2014 Right put a relay on it and it starts right up. Only thing now is, went into town and a truck has hit the front and wrecked the passenger front wing, indicator and bumper. He's going to pay to get it fixed but if anyone has those part please let me know. Quote Share this post Link to post Share on other sites
RT 1006 137 Posted January 30, 2014 Hi everyone, just tryed the big wire on the starter form the battery, it's 12v and drops to 9v when cranking. Could the problem be the wire from the battery? I would say those measured voltages are all as expected. The 12v is certainly correct, the 9v whilst cranking is low but this will be due to the heavy load placed upon it by the starter and also if the battery is a bit low or if it is a small capacity battery. If the car starts now that you have routed a supply directly to the coil via a relay then you almost certainly have a problem with the auxiliary contacts on the starter solenoid. The contacts have probably gone high resistance for some reason (possibly because they are dirty), the coil will therefore not be receiving full power which in turn will result in a weak spark hence the engines unwillingness to start. The checks suggested in the three posts above will confirm for sure if it is the solenoid. You have effectively remedied the fault by wiring in a relay which is now doing the job of the solenoid aux contacts. I expect it will be possible to open up the solenoid and clean/inspect the contacts. Don’t know how easy it would be to do though. Sorry to hear of your run in with a truck and hope you manage to get the car sorted OK. Quote Share this post Link to post Share on other sites
MK5 V8 1 Posted February 1, 2014 you can strip the Bosch solenoids but you need some special tools to do it and even more to put it back together, RT 1006 is right in what he is saying, the cold start contact in the cap is only a small thin piece of copper which touches on the main moving contact when the solenoid is energized to give you the extra 3 volts on cold start, if that has corroded or burnt off then that's the problem. you should be able to get a new solenoid from your nearest starter n alternator specialist and dead easy to fit Quote Share this post Link to post Share on other sites
johncortina 1 Posted February 1, 2014 I WILL HAVE A WING AND INDICATOR IF YOU GET STUCK . OR I COULD BUY THE CAR OFF YOU THAT WOULD SORT ALL YOUR PROBLEMS . Quote Share this post Link to post Share on other sites
Andy I 0 Posted February 1, 2014 Thanks fro the offer its very appreciated, I should have a wing and indicator on its way from cortina center. My local auto spark says about a tenner for a new solenoid 👍 Quote Share this post Link to post Share on other sites
rex hawes 1 Posted March 13, 2014 Thanks fro the offer its very appreciated, I should have a wing and indicator on its way from cortina center. My local auto spark says about a tenner for a new solenoid 👍 Forget about the electrical stuff for a moment, Look down the carb throat operate the accelerator a few times if you dont see fuel squirting from the accelerator pump nozzles theres your problem either the pump is duff or the nozzles blocked. having to tip fuel down the carb to start is the obvious sign. Quote Share this post Link to post Share on other sites
bortaf 83 Posted March 13, 2014 Forget about the electrical stuff for a moment, Look down the carb throat operate the accelerator a few times if you dont see fuel squirting from the accelerator pump nozzles theres your problem either the pump is duff or the nozzles blocked. having to tip fuel down the carb to start is the obvious sign. Errr it's already sorted, a month ago :headscratch: it was the starter contacts :unsure: unless you know something not on thsi thread ??? Quote Share this post Link to post Share on other sites
rex hawes 1 Posted March 14, 2014 Errr it's already sorted, a month ago :headscratch: it was the starter contacts :unsure: unless you know something not on thsi thread ??? OOHHH I am soo sorry. Quote Share this post Link to post Share on other sites