1.7 d-jet '73 almost running Options

[isdyl]

Hi all - so I've refitted d-jet on my 1.7 which had a single weber when I bought it. It's almost running but I've run out of ideas as to what to adjust or check. I've recorded a video of it starting. You'll hear that it starts quite lumpily and wants to stall. I manage to get the revs up by feathering the throttle and they go up to 2.5 or 3000 revs on their own for a second, and then it all dies again. I can keep it running by feathering the throttle again.

https://www.youtube.com/watch?v=Y06kdQC2IZg

Fuel pressure when running is 2 BAR. Theres no cold start valve connected. All injectors are 'squirting' as I took them out and checked in a jam jar. I've tried adjusting timing, mixture screw, air screw. I haven't checked the valve clearances yet but have had the distributor in 100 different settings with no improvement. I just wondered if anyone has any ideas please?
Thanks, Dylan

[BeatNavy]

You haven't run out of ideas - you haven't adjusted the valves yet (IMG:style_emoticons/default/smile.gif)

1. Adjust valves
2. Set dwell (45 to 50 degrees) and THEN set timing right where it should be 27 BTDC

Must do dwell before timing, as dwell adjustments will throw dwell off. With those variables out of the way, you can see if there's any improvement or if you need to get into testing / adjusting specific D-Jet components and vacuum setup.

[isdyl]

Ok thanks - I was hoping to avoid climbing under the car but I can see I'm going to have to. At the moment it won't idle or hold steady revs to set the timing. Would the valve clearances make that much difference please?
Dylan

You haven't run out of ideas - you haven't adjusted the valves yet (IMG:style_emoticons/default/smile.gif)

1. Adjust valves
2. Set dwell (45 to 50 degrees) and THEN set timing right where it should be 27 BTDC

Must do dwell before timing, as dwell adjustments will throw dwell off. With those variables out of the way, you can see if there's any improvement or if you need to get into testing / adjusting specific D-Jet components and vacuum setup.

[BeatNavy]

Ok thanks - I was hoping to avoid climbing under the car but I can see I'm going to have to. At the moment it won't idle or hold steady revs to set the timing. Would the valve clearances make that much difference please?

If the valves are significantly out of adjustment yes. You're going to need to verify / adjust them at some point anyway (unless you know they were set correctly before).

Goal at this point is to get everything close enough that it will run / idle enough for you to make fine adjustments. It may help to have another person available. It takes practice to do the timing by yourself, but it's certainly possible. One hand on throttle body one hand on light, leaning over timing hole, one eye on mark, one eye on tach...etc.