Propane fitting and start assist question

TheGriz

TheGriz

Well-Known Member
Joined
Apr 6, 2005
Location
Raleigh, NC
Ok... I've got most of it figured out. I'm running the typical impco 425 setup with vacuum lockoff.
On my converter, I have the electric start assist, which is wired into my starter circuit. I was assuming that this was squirting a little propane into the mixer when I push start.
I've been searching, and I think that the line from the start assist is supposed to connect to the back of the mixer at one of these two red dots. For now, I've connected a line to one, and capped off the other.
If I have this hooked up correctly, what is the second line (red dot)for?
ai71.photobucket.com_albums_i135_sff5758_YJ_20Buggy_20Build_impco425fittings.jpg

Thanks,
Steve
 
If you are running the typical set up, 425, Model E and Vac lock off, I don't understand the "Squirt" thing. As I know this system to work, you have no pane in the system until you create enough vacuum to activate the lock off and release pane into the converter.
AFAIK those are vacuum ports but I have everything plugged on my 425, and my vac hose goes to the intake where it gets more/stronger vacuum.
 
^^^^thats how i understand it. never heard of the elec start assist. iirc i pluged those two ports and ran the vac line from the valve to full vac port on the base plate
 
IIRC one of the systems I either installed or helped install, had something like that on it. Took it off and threw it away. Everyone of the systems start fine and run fine. I don't see the need for it.
 
if you live in NC you don't need to worry with that. I've fired mine at 20* and it starts just fine. I believe that's used for really cold places like yankee-land or Canada.

edit: i may have this completely backwards but here goes. What it does is when it's really cold out you can flip the switch and it will open the valve. this gives you an extra shot of gas in the carb for cold starts. I figured you might want an explanation.
 
Won't hurt to keep it. Most people using it have a longer feed line from the evap to the mixer. Mine sits two feet away and I use the valve. Gives me instant restarts if I stall out, instead of having to crank the engine until enough vaccum is generated. If it dies, the only thing you might notice is slower to fire.
 
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