Jet sizes for 40IDF's on 'W' code motor - Help!

Discussion in 'Mech Tech' started by aspo13, Jul 15, 2014.

  1. Engine is now all together and in. All plumbed in, up and running.......
    Problem is it runs terrible! I think my 49cc Mobylette scooter could out run it :(. It sounds noisy (maybe because I've got used to the sound of a mates stock 1600 with stock exhaust). To my (untrained) ear it just sounds a bit 'clattery', maybe check the valve clearance's as I assume these could be affecting the timing as well?

    The carbs have had rebuild kits fitted from eurocarb but are still jetted as I got them, apparently for a 2.0l, but who knows?
    It doesn't rev particularly cleanly and pops and bangs with a bit of smoke, very very rich. Timing has been set at 5 degree's static.

    I've attached a photo, as the engine at least looks lovely ;).
    We have a place very near to us that specialise in setting up carbs so I want to trailer it to them and get it running better so I can at least drive it over to the rolling road session I have booked for the 22nd. I am frightened to drive it incase I wash the engine with it running so rich!

    Engine is a 'w' code (& has the right heads & pistons), twin 40's, breather box for heads, sgl quiet pack exhaust. Can someone (probably Paul) give me a list of the right size carb parts (jets-mains & idle etc) that I ought to be putting in to suit this set up?

    At this point I don't care if I had to pay for super-duper mega expensive platinum bits as long as it made the car work! We are going to v-dub Island in a month and I have 2 little girls that are desperate to camp in their bus. Going in the T4 with a tent just wont be the same.

    It also seems to have sprung a leak from the oil pump. Is this likely to be the pump or just a gasket that hasn't seated right? Can't say I'm over chuffed as the engine was supposed to be a nice fresh long block. Can the pump be removed/refitted/sealed with the engine in situ or do I have to take it out again.

    Attached a pic below so everyone have a look and tell me if it looks right/wrong.
    [​IMG]
     
  2. Easier for me to tell you what you need to change, if you give me a list of what you have in there :thumbsup:

    so:
    chokes
    idle jets
    main jet
    emulsion tube
    air correction jet

    The popping and banging - where is that coming from? Carbs or exhaust?
     
    paradox likes this.
  3. Thanks Paul, I have absolutely no idea what is inside them and the noise seems to be coming from the exhaust rather than the carbs.
     
  4. Baysearcher

    Baysearcher [secret moderator]

    I don't know type 4 engines but is that timing right? @Paul Weeding
     
  5. Paul, could you let me have your number please?
     
  6. Had a chat with Paul, put my mind at rest & he has helped me immensely with his advice to getting the van running properly. Updates will follow when I've got my new parts ready to fit in the carbs!

    Once again a massive 'Thank You'
    Much appreciated and beers are on me when (not if) Imake it to the same show!
     
    Paul Weeding likes this.
  7. Any Joy?
     
  8. Looks to me you have the wrong linkage kit .....
     

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