Might have to swap fuel injection system for carbs - help me save or choose?

Discussion in 'Mech Tech' started by Superscally, Jan 30, 2012.

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  2. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    i don't think you can get a new one the same but you can always get a basic ecu and get it mapped for any engine anyway, there is always second hand ecus on the samba but i face the same choice one day i guess, if mine plays up i will not hesitate and go to carbs, Birdy on here went to carbs on his 2 litre as well.
     
  3. okay, a shot in the dark, know nothing about this tho,, new heads with bigger valves, if running with carbs, this would have had the needs for bigger jets in-em. how do you make this system pump up the volume ?
     
  4. Dead ecu = very unlikely to get a replacement...

    I could try my guy in the states, but you'd be talking big bucks!! :eek:

    So what exactly is it doing?

     
  5. @ Snotty - carbs will only cross my threshold as a last resort - I promise you!
    @ Rickyrooo 1 - Again could be worth looking for I guess...
    @ Holmsen - I dunno - it did run ok initially with the old porsche heads/valves, got progressively worse and now since the rebuild virtually a dud.
     
  6. On my brothers 2 L. turbo there is a system from an old golf gti, wreck yard hunting ?
     
  7. I will endeavour to find out the exact latest news!!!!!
     
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  12. Apparently it turned over, fuel went round system, but injectors seemed not to be injecting in same place? When he got it sorted it'd go out of sync really quickly. Now it just no worky...think ECU is ok as another ECU didn't rectify the problem...
     
  13. MorkC68

    MorkC68 Administrator

    I dont know if this will help, what condition are the vacuum hoses in? Our 77 (running FI) ran like a bag of spanners, rough lumpy idling, would die on you if you came to a road junction etc.

    We changed all of the small hoses for new, checked all of the pipe connections and it runs spot on now.

    I assume your mechanic swapped all of these when he was troubleshooting
     
  14. @Superscally, I am in Lincolnshire and i reckon about 1 to 1 1/2 hours from you(if you are in st ives cambridge). I have loads of spare injection parts and it is pretty simple to test the injectors, just need a lamp and to see if the signal to the injectors is pulsing or not.
     
  15. vinnyboy

    vinnyboy Supporter

    I work on new cars for a living and know all about fuel injection. The system on our busses is very simple and good quality but it is 30 years old. Having said that its not as simple as a pair of carbs. I put up with my injection for a couple of years, air leaks , dirty injectors, poor earths etc, etc. It was always in the back of my mind that it could go wrong at any time.
    Now i've got a pair of Dells ( DRLA ) and never looked back. So simple and easy to set up at home. 25 mpg on a long run. Easy starting and more responsive. About £700 from Eurocarb with a new fuel pump.

    ask yourself why all the main car makers used carbs until the 1990's in this country. they only went FI when they had to for emmisions.
     
  16. @MorkC68 - I think they have been replaced yeah, I've a couple of photos of the engine bay but don't think you'll get a huge amount of info from them? How do I attach them? I've clicked on the link to "attach image" but it doesn't really seem to do anything apart from the thing!
    @pkrboo - the van's in St. Ives, I'm in Milton Keynes. Got a plan Hannibal? :)
    @vinnyboy - ta! Good to hear the other side - I've heard those carbs are good, but maybe beyond my budget after my rebuild and heard you can rock out 30+ on EFI?
    P.S. - Cheers so much for all the advice guys. Really appreciated.
     
  17. MorkC68

    MorkC68 Administrator

    I tend to use photobucket for posting images up, its easier (as I cant fathom our image hosting thingy)!
     
  18. Birdy

    Birdy Not Child Friendly

    As Vinnyboy said, it was for emissions purposes only hence why it was only ever fitted to buses for the American market.

    It's a super system if you can get it running properly. When it does work it's brilliant. When it doesn't work it's a hell hole of annoyance. There are many checks you need to do and you also need to check the resistance in the items with an ammeter.

    At the end of the day it's up to you. There is some great advice being offered on here. It depends on what you want. After 3 months of fiddling I finally managed to get my system working again. And I then removed it a week later because it developed another fault. 3 years, 15000 miles on twin solex carbs from Coolair and I have not looked back. Like many who have ditched it and you only need to ask, we now have buses that work and I think I can say none of us miss it :)

    If you do ditch it, sell the bits. People always want the bits because they are so hard to find.

    FYI I very much doubt you'll get 30mpg from any set up in a bus. From new they would only realistically do 21mpg.
     
  19. Thanks Birdy, at least I know there's gonna be some good carb advice if the injector's a no-go! I just feel I owe it to the engine to try and get it sorted!
     

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