When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
If thats the case, You will have to route the spark plug wires according to TDC of #1 and go from there. The distributor im sure was installed how ever they wanted to clock it. There is no bubba workshop manual or diagram.
Also, just use a little starting fluid down the carb and see if it will run after you do the above.
Last edited by FostersPerformance; Apr 21, 2025 at 04:14 PM.
Thanks, it was a crossfire Fi motor, swapped to a carb. Ran on crossfire just fine until rats chewed on engine harness. That prompted the carb swap. Hasn't ran since.
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
Originally Posted by EpicTech
Got the car home today. My friend did install the new fuel pump, but sadly she still will not start. I did notice while trying to crank, fuel spits out the top of carburetor. I tried and tried to get her to crank, thinking stuck float needle, but now the battery is dead so I got to charge it back up.
Does it have a carb now or TBs? NEVERMIND, saw the last post after I posted this. GL
Well if the distributor has key on power, fuel in carb, and the timing right it should run. Sounds like you probably have wiring issues as well due to the chewed up wires. Bypass it and hook the dist up and see what happens
Well if the distributor has key on power, fuel in carb, and the timing right it should run. Sounds like you probably have wiring issues as well due to the chewed up wires. Bypass it and hook the dist up and see what happens
Got the Vette to fire last night !! So stoked lol. I had found the connections of the plug wires to the distributor were all wrong a couple days ago, so I corrected that and also pulled the cap off, inspected the rotor and put it back on. Since then, I had the battery on a trickle charge. Last night my daughter and her b/f came over. He likes cars and hadn't seen the Vette or even knew I had it, and was all like hey what's wrong with it. I gave him the summary and it's current state, and then he was like well when you gonna see if it will start? I figured the battery should be good by now, so we tried the key and immediately the Vette fired and tried to start. We tried for about 30 minutes, adjusting the FPR, moving the distributor slightly, and spraying ether. The vette has a new fuel pump but I believe we have a fuel flow problem, whether it is the pump actually doing anything I am not sure. The vette will try to start with shots of ether, but will not idle. We also checked the tank, and it was basically empty, so we went and got 5 gal of 93 and dumped it in and tried starting some more but we just don't have fuel flow apparently. That is as far as we got but man hearing that LT1 trying to fire was music to my ears lol. Next will be troubleshooting fuel flow to the carb.
Fill the float bowls with fuel from a small bottle. See if it runs. You might just have stuck floats in carb.
But i think i speak for all here trying to help when i say , POST PICS OF ENGINE
Carbed LT1? In an 84? What kinda Frankenstein we talking about here? 🤨
The 84 came with an L83. Completely different gen of motor vs the reverse cooling LT1
The kind of Frankenstein where the PO did a carb swap from the Crossfire setup because the engine harness wires were chewed by rats beyond repair. Funny enough the car was still trying to run, only it wasn't hitting on all 8. I told him he would have been smarter to just replace the engine harness and he replied that he just wanted to carb swap it anyway. I have all of the crossfire stuff (I think, I still need to pull all of it out of the box and inventory it all), and I did look at the engine harness, it is in very sad shape. I am capable of rebuilding the harness but it would take a while, given I could find all the correct connectors again. It would be easier to just get a replacement harness if I decide to switch back to FI I would need another engine harness, so if anyone has one for crossfire, or TPI if that is compatible, let me know. Once I get this fuel pump to push fuel it better run, if not the carb is coming off. It's a new Edelbrock that the PO put in.
Last edited by EpicTech; Apr 24, 2025 at 10:37 AM.
Fill the float bowls with fuel from a small bottle. See if it runs. You might just have stuck floats in carb.
But i think i speak for all here trying to help when i say , POST PICS OF ENGINE
Thank you we did try that. It fires and tries to run. I will get some pics up soon, as I think there is still missing connections on the carb, like the tranny kickdown.
Is that glass fuel filter on the return line? What lines are hooked up to what/which ports of the FPR? Is there fuel to the FPR? Also, I see the vacuum source for the FPR is hooked up to the carburetor, does that carb port have full intake manifold vacuum? Do you have a vacuum source on the back end of the intake where you can get vacuum for the FPR? Finally what model/brand FPR do you have there? Is this gas or oil? If gas, your carb seems to pressurized....I would take the gas cap off the tank and see if you have a pressure build up! If it’s oil, you're missing thread sealer on the intake bolts and possibly have a major vacuum leak going on....
I see a number of things to address in these pictures, but will keep it to the subject at hand for now👍
Last edited by '78CorvetteS.A.; Apr 24, 2025 at 07:50 PM.
Is that glass fuel filter on the return line? What lines are hooked up to what/which ports of the FPR? Is there fuel to the FPR? Also, I see the vacuum source for the FPR is hooked up to the carburetor, does that carb port have full intake manifold vacuum? Do you have a vacuum source on the back end of the intake where you can get vacuum for the FPR? Finally what model/brand FPR do you have there? Is this gas or oil? If gas, your carb seems to pressurized....I would take the gas cap off the tank and see if you have a pressure build up! If it’s oil, you're missing thread sealer on the intake bolts and possibly have a major vacuum leak going on....
I see a number of things to address in these pictures, but will keep it to the subject at hand for now👍
Is that glass fuel filter on the return line? Yes
What lines are hooked up to what/which ports of the FPR? Fuel feed from tank into FPR, then going out of FPR on the other side.
Is there fuel to the FPR? Not currently but does smell of fuel
Also, I see the vacuum source for the FPR is hooked up to the carburetor, does that carb port have full intake manifold vacuum? Not sure to be honest.
Do you have a vacuum source on the back end of the intake where you can get vacuum for the FPR? No
Finally what model/brand FPR do you have there? Hypertune
And yes,, that is fuel sitting down on the intake manifold.
I found a massive short at the alternator. Explains that part of this equation. I went earlier and ordered a new alternator. Also got a switch so that I can manually give power and test fuel pump circuit, because it certainly is not doing that now.
Well folks just waiting on the new alternator to get here, should be this week around Wednesday. Corrected alternator wiring and deleted some old amp wiring. I got fuel jumper switch mostly wired in, was going to tie into the cigarette lighter as suggested elsewhere on this forum, but PO has messed with that as well by moving it outside the actual console. My only guess is he wanted quicker access to charge his phone.
