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Post by Rhubarb on Oct 24, 2014 18:16:01 GMT 1
Told you it'd be the warm up reg ner ner Glad it was an easy fix
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Post by Deleted on Oct 24, 2014 20:52:02 GMT 1
Told you it'd be the warm up reg ner ner Glad it was an easy fix And a grand total of three pages LOL
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Post by Deleted on Oct 24, 2014 22:08:00 GMT 1
good i can sleep at night now
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Post by eddypeck on Oct 28, 2014 14:20:39 GMT 1
Argh, that was short lived, another break down this morning. Thankfully I got off the motorway as it started to splutter coming up to my exit, I just got off before it died completely. No fuel, as in no fuel getting through to the injectors. I have a full tank of petrol! I cracked off the fuel in to the distribution unit and once the initial fuel in the lines had gone it was dry, turned over with the union loose expecting to see a spray of fuel and nothing. I swapped the fuel relay for the 18 (which makes it permanent with ignition live) for testing, and removed the lift pump cover, could feel the lift pump buzzing. But wasn't safe at the side of the road to check the main pump. One of the guys from work came out and towed me in. The car's now in the office car park. I had a check under the car, no sign of fuel leaking. I gave the main pump a wiggle and it started buzzing but sounded like it was sucking air, maybe since I'd cracked off the front nut and lost the pressure in the system? But the problem is definitely in that area. It was a new pump back in May, give it a knock and it buzzes but won't keep going. I only replaced it in May. How can I test the pump, to see if it's faulty or find out if it's an electrical feed problem? I've now got a flat battery
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Post by natedog on Oct 28, 2014 19:03:53 GMT 1
Do these suffer from rusty fuel filler necks, like the A1 chassis cars did? Might be worth opening the top of the tank and seeing if it's full of rust and/or water
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Post by Deleted on Oct 28, 2014 20:50:16 GMT 1
Told you it'd be the warm up reg ner ner Glad it was an easy fix You were saying LOL
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Post by Deleted on Oct 28, 2014 20:58:57 GMT 1
How can I test the pump, to see if it's faulty or find out if it's an electrical feed problem? I've now got a flat battery What equipment have you got? Ideally you need; 1 / Glass jar (bottle) to measure fuel volume per unit time, 2 / Fuel pressure gauge to measure pump reserve pressure and line pressure, and 3 / Scope to measure fuel pump voltage + ve and -ve and pump current while pump running continuously but not just to see current flow but also to observe pump behavior. Based on the fuel unions I have seen to date I would find it difficult to believe that there is not a fuel line / filter fault somewhere unless the obvious is OK
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Post by Joepublic on Oct 28, 2014 21:28:30 GMT 1
Do these suffer from rusty fuel filler necks, like the A1 chassis cars did? Might be worth opening the top of the tank and seeing if it's full of rust and/or water Plastic tank on mk2s There's a chance there's something floating around in there though after 30 years
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Post by Deleted on Oct 28, 2014 21:55:21 GMT 1
How can I test the pump, to see if it's faulty or find out if it's an electrical feed problem? I've now got a flat battery What equipment have you got? Ideally you need; 1 / Glass jar (bottle) to measure fuel volume per unit time, 2 / Fuel pressure gauge to measure pump reserve pressure and line pressure, and 3 / Scope to measure fuel pump voltage + ve and -ve and pump current while pump running continuously but not just to see current flow but also to observe pump behavior. Based on the fuel unions I have seen to date I would find it difficult to believe that there is not a fuel line / filter fault somewhere unless the obvious is OK 4 lb hammer
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Post by Karl on Oct 28, 2014 22:07:33 GMT 1
Do these suffer from rusty fuel filler necks, like the A1 chassis cars did? Might be worth opening the top of the tank and seeing if it's full of rust and/or water Plastic tank on mk2s There's a chance there's something floating around in there though after 30 years See a few cars over the years with lack of power/fuel restrictions and which have been from a cloth/rag floating about in the tank and blocking pick up Can only think it's where people keep a rag or wipe spilled fuel from the filler neck ?
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Post by natedog on Oct 28, 2014 22:16:56 GMT 1
I once went out to a Bedford rascal that the owner was having trouble getting fuel into. I fished a pile of broken temporary fuel caps out of the filler. He thought someone was stealing them, not that they were breaking and falling in
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Post by Joepublic on Oct 28, 2014 22:26:25 GMT 1
Plastic tank on mk2s There's a chance there's something floating around in there though after 30 years See a few cars over the years with lack of power/fuel restrictions and which have been from a cloth/rag floating about in the tank and blocking pick up Can only think it's where people keep a rag or wipe spilled fuel from the filler neck ? MK2s rust under the filler flap, I bet theres' more than a few people remove the cap shove a piece of rag in before repairing / painting?
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Post by Joepublic on Oct 28, 2014 22:28:25 GMT 1
I once went out to a Bedford rascal that the owner was having trouble getting fuel into. I fished a pile of broken temporary fuel caps out of the filler. He thought someone was stealing them, not that they were breaking and falling in Breather blocked and sucking them in? My old mans Datsun Stanza had slight vacuum even from new
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Post by Deleted on Oct 28, 2014 22:48:00 GMT 1
What equipment have you got? Ideally you need; 1 / Glass jar (bottle) to measure fuel volume per unit time, 2 / Fuel pressure gauge to measure pump reserve pressure and line pressure, and 3 / Scope to measure fuel pump voltage + ve and -ve and pump current while pump running continuously but not just to see current flow but also to observe pump behavior. Based on the fuel unions I have seen to date I would find it difficult to believe that there is not a fuel line / filter fault somewhere unless the obvious is OK 4 lb hammer It's not bonfire night yet lol
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Post by valhalla on Oct 28, 2014 23:54:59 GMT 1
Pressure tester kit on the fuel distributor entry (or at cold-start gubbins, as previously mentioned) would yield so much info! Could be a collapsed pressure damper after the pump (I had this with an 1984 G-Wagon) due to sheer age. Probably easier to replace (if not already done recently) than it is to diagnose.
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