MORE RELAY PROBLEMS

[craigy]

Thanks to those who helped me with my Fuel pump and relay problems (especially regarding the different priming & non-priming relay situation). However I thought that I would check the other fuel related items and found a drowned Kalt start (Green) relay which has rusted to buggery. Could anyone tell me if this would explain my lack of cold start fast idle, or my hot starting overfuelling problems. What does it control and does it mean that the cold start injector has been running continuously even when hot, as I belive that the relay is a timer device. Much obliged to you all for any info.

[gadgit]

If you have the 2.8 engine you have a thermotime switch and a warm up regulator. The first thing to check before looking at these in detail is all your air hoses for leaks as this will give simular problems. Any doubt as to condition of hoses should mean replacement. I would as a matter of course replace the time switch, as time will have taken its toll and then this will only leave you the regulator.

get back to us then for the next step.

gadgit.

[craigy]

Dear Gadgit,

Am I right in thinking that the thermotime switch controls the auxillary air device? If so, this is working as you can hear the air flow which gradually diminishes as things warm up. Does the Green Kaltstart Relay only control the cold start injector for a limited time period? P.S Relays are bloody expensive(Green one was £35.00, Fuel pump one £25.00 plus a spare from another supplier @ £15.00!)

Cheers CRAIG

[gadgit]

Now, I'm getting this from the bible. can't see anything that seems to suggest that but you may be right. the air device can stick in either dircetion, open or closed so give it a good clean. there is also a heater in the device which can fail meaning a replacement and also a heater in the warm up regulator so this can suddendly get very complicated. one thing to bear in mind is that once you hace cleaned all connections and hoses you are very quickly getting beyound what you can do at home because the other tests require useing special equipment to test fuel pressure. do what you can then go to a test centre and have the whole system checked over. this is the only way to be sure you find the fault without getting frustrated.

good luck. any more questions, fire away!

gadgit.