super_supra Posted April 2, 2006 Share Posted April 2, 2006 my girlfriend has a very old bedford cf horse box, never normaly have a problem starting it but today it just will not start, the glow plug light comes on but when you turn the key it just keeps turning over and over i ve tryed priming the pump/filter with the handpump thing didn't make any diffrence. The only thing i can think is the glow plugs are knackered anybody any other ideas what it could be or how i test glow plugs? Quote Link to comment Share on other sites More sharing options...
Scooter Posted April 2, 2006 Share Posted April 2, 2006 on my brothers pug diesel i got air in the fuel system changing the fuel filter and it wouldn't start. A friend of the family who's knows his diesels (plant and cars) came over and basically we slackened off (in turn) any of the joints between the filter and the injectors. Basically slackened off, turned engine over until it over flowed, tighten join, engine off, next joint until you get to the injectors......it then fired up and has been fine since..... As you haven't touched the filter, i'd say slacken off a injector and crank it to check for flow, and repeat for the others. Will rule out the fuel side of things................. just reread your post, does the glow light go out? or does that not normally happen with this vehicle? Quote Link to comment Share on other sites More sharing options...
super_supra Posted April 2, 2006 Author Share Posted April 2, 2006 on my brothers pug diesel i got air in the fuel system changing the fuel filter and it wouldn't start. A friend of the family who's knows his diesels (plant and cars) came over and basically we slackened off (in turn) any of the joints between the filter and the injectors. Basically slackened off, turned engine over until it over flowed, tighten join, engine off, next joint until you get to the injectors......it then fired up and has been fine since..... As you haven't touched the filter, i'd say slacken off a injector and crank it to check for flow, and repeat for the others. Will rule out the fuel side of things................. just reread your post, does the glow light go out? or does that not normally happen with this vehicle? no glow plugs are on a push button you keep your finger down for 20seconds then try and start it. i ll try slackening off the injector pipes to bleed them tomorrow thanks for the sugestion. Quote Link to comment Share on other sites More sharing options...
absz Posted April 2, 2006 Share Posted April 2, 2006 its more than likely you have two or more glow plugs failed. you will have to remove the wiring feed to the glow plugs (buzz bar) then connect a wire to your battery positive and touch the other end on the glow plug tip were the feed wire normally screw onto if the glow plug is working then you will get a current flash as the glow plug draws current if you have no flash then that plug is at fault. hope that makes sense. Quote Link to comment Share on other sites More sharing options...
jagman Posted April 3, 2006 Share Posted April 3, 2006 Diesels suffer from water in the fuel especially if parked up without full tank,in the engine bay you should find a drain plug usually on the bottom of the fuel filter,drain this first.they can also get air in the fuel lines so next up is to bleed them.glow plugs as previously mentioned also some have a glow plug relay/timer.hopefully not the fuel pump/distributer as they can shear the drive in them cos of dirt in fuel and no one ever changing the fuel filter' Quote Link to comment Share on other sites More sharing options...
merckx Posted April 3, 2006 Share Posted April 3, 2006 Try pushing the button for the glowplugs and get a few mates to give you a push start. If it starts and runs okay then you have one or more bad glowplugs. I had the same problem with the van a few years ago. If you need to replace them, then get some from your local dealer or get some Bosch ones. Don't get any cheap ones as they don't last at all. Quote Link to comment Share on other sites More sharing options...
super_supra Posted April 3, 2006 Author Share Posted April 3, 2006 thanks for all the advice were are going to try and bump start it to day, if that is no good i will be checking the fuel side:rolleyes:. thanks agian for you help:thumbs: Quote Link to comment Share on other sites More sharing options...
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