from tbi to carb
 

i converted my 92 rs from tbi to carb now i cant get my car to start i put a mechanical fuel pump in i put gas in the carb the car starts but the pump isnt pumping any fuel i put in a glass fuel filter i allso cut a hole in the trunk with a air chisel to pull the eletric fuel pump out im a few steps away and im finished

Does the cam have a lobe for a mechanical fuel pump? I dunno if TBI cams did or not.

- Justin

wouldn't that have an OE roller cam????

That could be the issue. Should have just put a regulator inline and kept the tank pump.

Yes. But what difference does that make? My '87 came with a mech. fuel pump and a roller cam....

- Justin

the engine is a 350 it was changed by the previous owner

that would make a cam very expensive

i had problms with the vats thats why i got rid of all the fuel injection stuff

You still could have kept the in-tank pump and just installed a regulator. And then you wouldn't have had to attack your car with an air chisel.

- Justin

it was fun with the air chizzle in the future the hole is going to get welded and a fuel cell will be installed

i think the car had a cam it ran strong and idles rough

then theres no way with out pulling the cam to tell if it has the loab

im not going to pull the cam

Then you should just take off the mechanical pump now and install an inline electric pump. If it's a new pump and it isn't working, chances are good that whatever cam is in there has no provisions for a mechanical fuel pump.

- Justin

The fuel pump pushrod goes in before the cam is installed right? I haven't messed with one for years, but you can't install or remove the rod through the side of the block right?

So the cam had to be pulled to install the mechanical pump. Right?

i put in a new fuel pump push rod

dumbass, it comes out the side with the pump. :lol:

it just rides the loab
<wrong pic removed, lol>

are you sure, I remember on a motor once it was giving me crap and would not come out the side.

Thanks for the dumbass comment though! :moon:

did you use a bolt in the front of the block to hold the pushrod in place while you installed the pump? did you forget to take the bolt out? The pump wont work with the bolt left in...dont ask how i know this...

ive never seen a SBC cam without a mechanical pump lobe
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WENDIE 99

when i pulled the plate off there wasnt a pushrod for the fuel pump i ordered one when i ordered the fuel pump allso i need to know what fitting i need that will screw in the pump the reason why the fuel wasnt pumping is because the fuel line didnt seat right it was sucking up air i screwed it on all the way but the pipe was loose

no, theres a pushrod

its some kind of inverted flare fitting on a stock pump, i have one for -6an somewhere...
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bubba thinks its a old 4 cyl import engine lol

i tried to screw in the stock fitting it screws in but the pipe is still loose do you have a pic of the fitting