i bought it from Schofields circa £42.00 I recorded a part number 111 905 205 but unsure if that related to what I bought; there is no vacuum advance though
OK I'll check that, thanks for your input; just to be clearer . . . floor the throttle no problem, idles fine, anything in between is awful until you get it up to speed on a settled throttle. VWH are promoting a SSP 034 Dizzy + 12v Electronic Ignition which refers to the problem I have? What puzzles me is how the existing Dizzy can work without the vacuum advance. I can't think its fuel as that would impact on all aspects above.If there’s no vac can , I’d imagine it’d be an 009 with a mechanical sprung advance. Might be worth opening up the dissy and just check that the springs or the counter weight are allowing the plate to move to advance. Just take a little peep and it should all be fairly easily moved almost without the weight of your finger pushing. I had this once where it had just got a bit rusty and grimy in there. Pretty sure it was the weight stuck on its pivot. A lot easier to see if you mark the dissy and lift him out but remember which way round it is.
Ozziedog,,,,,,,,,,,,I’d forgotten that one
Trouble is one ends up constantly changing or replacing things, as you quite rightly say one starts to grasp at straws. I have two carbs, one the original and one an aftermarket one, can't remember now which is on it.Unless it’s a specific form of fuel starvation praps, like something intermittently blocking your fuel like a plastic bag getting sucked over the outlet or a hidden fuel filter that’s almost blocked. The dizzy you have, I think is an 009. This type of dissy was mainly used on static styled motors like pumps and generators etc etc. It was also taken onboard initially by some parts of the racing communities that required idle and flat out and for racing bangers it was spot on. In a van, it’s fairly similar in that mostly it’s idling then all power required to get that brick of a bus moving. But it does have advance inside the dizzy but it’s nowhere near as refined as an SVDA which I think is single vac, duel advance. There’s also several different jets in your carb for various stages of the revs and loads. Sounds like your idle jets are fine but might be worth cleaning out the rest and possibly look for spindle wear ? Did you have the same problem before you fitted the new carb ?
Ozziedog,,,,,,,,,,I’m grasping at straws here
HiSo are you saying that you’ve had the same issue with both carbs ?
Ozziedog,,,,,,,any other things changed
Well I’ve tried everything but still blighted with these two issues
What’s the timing set at? 009 needs to be set at 28-30 degrees at 3000 rpm. And when you increased the size of your pistons did you re-jet your carb for the increase in CC’s? It could be falling on its face because it is going lean.
Agreed, sounds like a right bugger's muddle.Let’s go back to the start. Have you ever had this running nicely in your ownership? Then list what you’ve done and if it’s ever changed. I know that over time we all forget exactly the sequence and timings of certain events and changes. Please try and list everything that you’ve done or had done then it might start to make sense. Right now , at the beginning, you say it hates an open throttle but you’re also saying it only likes it when you floor it and I’m just not getting exactly what’s happening. Where abouts are you in the world ?
Ozziedog,,,,,,,,,,won’t just give up
