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Hello everyone. I've recently got myself another w reg escort van, 1.8 n/a diesel. It's just as gutless as the last one, however the first half of the throttle movement does nothing with the second half then doing everything! It's not a loose throttle cable as it does it when moving the throttle lever on the pump. There's a small screw on the back (next to the 4 injector lines) that looks like it could have been fiddled with but I didn't want to start fiddling and balls it up completely! Anyone have any clues?   |
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Too many projects, not enough time.
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Just a thought, how long since it had a diesel filter, and does it have a mechanical lift pump? Is it s diesel starvation issue, and the injector pump is working really hard to get a supply, and not getting enough until it’s at higher throttle?
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The fuel filter looks new, however a replacement is only a fiver so I'll give that a go! The screw on the back is item 10 on this diagram "Soupape regulatrice" which translates to regulating valve. As to what this regulates is another question, but what I do know is that the Allen key hole has been rounded off in the past!  |
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Too many projects, not enough time.
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Had problems with Land Rover diesels, when the lift pump has expired, and the injector pump is doing the job of both.
If it’s a mechanical pump I’d check that the lift pump is giving a good supply to the injector pump
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Rich
Club Retro Rides Member
Posts: 6,234 
Club RR Member Number: 160
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Escort van fuel pump throttle issuesRich
@foxmcintyre
Club Retro Rides Member 160
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The regulating valve I believe on this pump is what I would know as the ‘max fuel screw’ on a Bosch pump and if it’s been tampered with already, beware. Someone may have been fiddling and caused this problem, maybe to mask a different issue. Does it smoke at all when pushed hard, or does it feel lacking and down on power? (Lack if actual accelerator ‘travel’ aside)
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It doesn't feel any more down on power than my last escort van! There's also no smoke out the back when giving it some.
The new fuel filter should arrive tomorrow or Monday so I'll report back once that's on.
If it doesn't help I'll have a fiddle with the max fuel screw. What's the worst that could happen 😁
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Too many projects, not enough time.
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Seen scrapheap challenge scrappy races? 😱
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Jun 10, 2020 10:59:37 GMT
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Update time!
New fuel filter arrived and fitted. The old one looked brand new inside, but the new filter made a very slight difference. There's some black smoke out the back now too when your booting it (99% of the time in these things) so its definitely had an effect.
Chucked a straight pipe on the exhaust for testing purposes (needed to replace the original crusty one) and this had no effect on performance so a blocked exhaust if off the list too.
The throttle still only seems to do anything in the second half of the travel though.
Previous owner had a new cambelt fitted about 5k ago, so maybe the pump timings out?
Next time i'm near the scrappy ill have a ratch for a pump i think. Even if its just to take to bits and see how they work. (Diesel is a new world to me!)
James
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Too many projects, not enough time.
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