venturi set screw

[Bilson]

I noticed a screw missing from the carbs, what appears to be the venturi set screw on the left hand carb.

I'm hoping to find out from anyone who knows whether this is something I can simply screw back in place if I'm lucky enough to find it, or if I'm able to source a replacement.

[BOXY]

I think the screw you mean just holds the venturi in place in the carb body. One of mine went AWOL and I found in sitting on top of the manifold. I put it back in with a dab of stud-lock and it's stayed in place since.

[HarryMann]

What was the dizzie before you put the 005 on?
Why did you put that particular distributor on? Because I'm assuming it either doesn't have vac adv/retard or has a different centr. advance curve.
What static timing did you use?
How much do you know about these engines?

I'm suspecting you might be looking in the wrong place for your drop in performance.

[Bilson]

cheers Boxy, I wasn't so lucky, got hold of an m6 grub that will have to do for the time being.

Hi HarryMann, I know about as much about the engine as I do about any engine I'm afraid, petrol goes in, noise happens, and the wheels turn when you move your hands and feet in the right way. I only know what I read here and there online whenever I need to try and work something out to be honest.

The original distributor was a 007 (with dual vac advance), it was removed by the garage I took the van to for an mot. The van was having trouble starting just after I confidently got dropped off to pick it up (fault had developed there). I was told at the time it must either be the coil, distributor, or ignition amplifier at fault. I was also told the vac advance was knackered, proven to me with a wiggle of the nipple that connects to the left carb.

To be honest the impression I got was that the garage just wanted the van to start and out, off their hands. I was still expected to try and drive the van home as it was, which I obviously refused to do seeming as though I would probably break down around the corner. Anyway, the 005 was fitted without my involvement, I couldn't get the 007 back originally as the garage wanted it as part payment for the 005.

Although it's from a 2l cu, the 005 does only have a single advance, and perhaps the wrong curve etc (not that I understand what all that really means).

All I know is, the van's running worse than it ever has. This is why I did some reading up and went back to the garage to get my original distributor, ignition amplifier and coil so that I could start again with the ignition set up as it should be (I'll have to take the 005 back once it's off the van).

I've done all I can to the distributor, (cleaned up mech, new hall sender, rotor arm and cap), I also found the diaphragm on the vac advance was intact (which I initially expected might've been the case) so the loose nozzle has been sorted with a bit of metal epoxy.

I'm hopeful that putting the original setup back might provide a good starting point to get things sorted (might be wrong though?).

This has got very long, but I think it was necessary to explain how things have occurred. Timing wise, I don't know what's gone on there, I don't think it was done to be honest after the brand new second hand distributor was fitted. The guy at another garage did improve matters slightly by cleaning the points on it and adjusting the timing, but I don't have a clue what the static timing is/was set at.

I'll be taking the van to someone tomorrow and have been told I'll be welcome to spend the day down there. I'd be very greateful and interested to recieve any advice with on the engine, the timing, carbs, or any ideas on anything else that could be going on. Would be very useful to go down armed with as much info as I can.

[HarryMann]

Did they scribe up the old dizzie and the block/ bracket before removing it... so you can be back to square one when its reinstalled?
Its all about not changing lots of things all at once... else one will never know what's been at the bottom of any problem.

Garage doesn't sound worth recommending !

[Bilson]

I don't know, I'll have to hope they did by the sound of it, but looking at the distributor I can't see anything, might notice something to match it up against when it's been fitted I suppose. I doubt it though.

I won't be going there again (apart from when I take the 005 to get my £45 back).