So everything is wired up, we have spark and the motor cranks!!!

It almost caught a few times, but didn't fire. Had a few backfires thru the carbs, sorted that out, and now just need to get her to light.

A few things:

1) My carbs don't have throttle return springs. Go figure. I need to add some springs. Can someone post some pics of theirs?

2) I plan to add a fuel pressure gauge in-line. I want to see that I am getting the correct fuel pressure. Running a new CB rotary @ 3.5 psi, so we'll see.

3) I think I have the wiring sorted out. There are 4 lines from the harness. Two are hot (oil pressure sender & power to coil). Two are not (tach and somethign for the FI, which I don't need). Can anyone confirm these for me? My harness isn't color coded like anything in the haynes.

I hope to get these things buttoned up tomorrow and start her Thursday. Wish me fun!

.ps special thanks to Mark (Euro911) for the help and patience with me. I appreciate it! Oh, Leamon too for the carb synch tool.

Joe,
If you're running the CB pump there is no need for a pressure gauge. The CB rotary was made for a dual carb setup. I'm still going to be in the area Thursday night so call me if you want me to stop by. I'll bring my tools and wiring guide.

I would be more concerned with having filters on either side of the pump.

As for the springs, here is what I use now (credit to AC), talk about serious spring-back, you may only need to use one.
http://www.airkewld.com/parts/pornforjoe

If you are backfiring through the carbs, are you sure that your timing is correct?

on my car, the timeing "seemed" to be correct, but the timing gear was 180 off. The results sounded exactly like what you are describing.

Zach

Filters on both sides - Check!

Sexy springs. I will call them ASAP.




Dizzy was not seated properly. So, um, yeah.... that did it.

Timing is close, we painted the fan blades while assembling the motor, so I know were are in the neighborhood.



I may take you up on that. I will know more today for sure.

I'm really tight on time, so I can't volunteer to help you, but I will say that Ahdoman has a wonderfully well sorted out car with dual carbs. And his car is so clean, you could eat off of it. He's gone through it all... He'd be a great help.

C:>

Fuel?
Spark?
Timing?
Valves?

fuel is getting to the carbs? check
pull a plug wire - got spark? check
timing - when the mark is seen, is the rotor pointing at a node on the cap? it should be a tad CW of the cap at TDC (advanced ....)
are your valves adjusted?

it should light.

give it some AIR too! give it like 2-3 pumps of the throttle (get some fuel down the carb barrel) and hold it half open (lets more air in)

should light

I adjusted the valves when I buttoned it all up, so that should be ok.

I don't have throttle return springs, so pumping it is a little tricky.

I will be swapping out spark plugs tonight just to be sure.

Timing light shows good on the fan marks, so I think timing is at least close.

I will try more later today and tomorrow and we'll see how it goes.

your carbs dont have the axial springs on the shaft to snap them back in place?

is your hex bar adjusted with enough 'play' left and right? (ie springs are in the ends of the hexbar, and it can float a bit left to right?)

if your bar is too tight you can adjust the stops, or trim the bar and drill the hole deeper.

make sure it isnt binding.

you can call me after 6 tonight if you want to bounce some questions off of me.

oh yeah... if you have spark and fuel....

while cranking, rotate the dizzy a few degrees each way until it catches.

Too much advance, and it will buck back and be hard on the starter.
Too little advance, it will spin like it doesnt have plugs in it.

90* off will net HUGE backfires out of the tail pipe.