Hey folks, I have been trying to get hold of this book for a while now… does anyone have it as a PDF per chance? Or alternatively another recommended manual? Would be massively appreciated by me and my poorly bus. cheers
It's really not much use TBH with max 1 page per carb type, it even shows float setting incorrectly for DRLA depending on your exact float valve. Which Dells do you have? Ask away!
^this, I’d say. It’s not much use (and needs a good editing - he just rambles on). As above, ask on here. Plenty of folk with Dells.
Wow, thanks a lot for the speedy replies…. Íve got some DRLA40´s waiting to go on my 2.0l T3 (sorry) I will get them set up properly by someone who actually knows what they are doing, and has a rolling road…. but it would be nice to get it running at least, so I need a bit of educating about what all the screws are etc…. I found an old thread on here about setting up the mixture screw, so I will try that out and see what happens, and get back to you when I have more specific questions. For now… the manifolds for my old Solex carbs have an outlet for the brake servo….. presumably one needs installing on the new manifolds right? also, anyone got any experience of whether these carbs work better with electronic or mechanical fuel pump? thanks again
Yes, you will have to tap one cylinder on the manifolds for the brake servo. My 40s work fine with a stock mechanical pump, but on your type 4 you might want to go electric if your mech pump is iffy. Good luck finding anyone who can set them up ie actually knows what they’re doing. Better to ask on here.
To save you wasting your time and money at the rolling road it would pay you to get them near before you go. So, you need to find out what you have first. Ball park as follows Emulsions? There is only one that works - .2 Venturi size - 28 or 30 Idle jet - 55-60 - you could probably run smaller but will be hard to start in the winter. Main airs - 180 every time Mains depend on venturi size - for 28, 125-130, for 30, 130-135. A lot of people say smaller but these will be safe. Before you o to a rolling road, be sure they have a selection of main jets at hand as otherwise all they can do is set your idle mix and balance the carbs which you can do easily yourself with a £30 air flow meter.
Agree with the comments above. Not much in it that’s specific and follow some of it and you will be miles away. 30s some will say are the better choice and I started with them but found it much more driveable with the 28s in my 2 litre that they came with in the end. Think most with 2 litre end up with 30s! Lost my jetting details but will be cleaning then and checking myself in a week or so. So can let you know. It runs great but a bit rich to the extent that I’ve removed the mechanical pump (mainly as I broke it)? But also it’s a lower pressure pump. Can’t prove it but think I had an overfuelling issue. Will update on that also as we should be all back together and running in a couple of weeks. Important to set float heights which I’ve never done, also to set throttle plates for idle ( feeler gauge job or good eyes!) I’ve got the book so if you need a reference from it I can advise if needed!
Worth taking your Dells apart and giving them a good scrub if they're used. At least a good blast of carb cleaner down every orifice while the jets are out.
You'll like your DRLAs, easy to set up, reliable and they look and sound great! And this - the accelerator pump circuits can be tricky, I had a problem with mine so check they work on all barrels before fitting the carbs - they must pump with the merest touch of the throttle or you may as well not have them - mine were draining back until I sorted them out. Mind you don't loose the ball bearings and springs. There are plenty of exploded diagrams on the internet. They seem complicated at first but once you get your head around them they're simple enough.
They do look quite scary, but they're pussy cats really. If you want your fuel metered, get the professionals in
PS @Billy Scott . You can just see where I tapped no 4 cylinder for the brake servo take-off (blue elbow below throttle linkage).
I connected both manifolds to the original steel balance/servo pipe - quite neat but takes care getting your fitting in the right place. No need to connect to more than one though as double barrel carbs don't need the balance pipe which is the only reason VW did it that way killing two birds with one stone. You would also be well advised to buy/make some heat insulators to fit between the manifolds and carbs. They don't need to be this thick.
And spacers twixt carb and flat-bottomed filter so the filters don't clout the fuel unions (white CSP things in my pic).
But if you do still want a copy... to background read how they work PM me your email i might know someone who has a friend that can get somenody to email a pdf
