fuel lines/ system

[BosoMKII]

You know the battery is fully charged? Have you tried a battery out of a working car?
My car would not start even if I jumped it the other day, but when I dropped in a known good battery ( out of a running car ) the motor turned over right away.
Just a thought. I like to eliminate as many variables as possible no matter how little they seem.

 

[JesseH]

You know the battery is fully charged? Have you tried a battery out of a working car?
My car would not start even if I jumped it the other day, but when I dropped in a known good battery ( out of a running car ) the motor turned over right away.
Just a thought. I like to eliminate as many variables as possible no matter how little they seem.

yea, I actaully took it in to pep-boys and they used their machine on it to check and charge it

 

[IJ.]

If you've been cranking it longer than 40 seconds at a time and not letting it cool down a bit you may have killed the starter! (Ask me how I know!)

Our starters have a stupid small motor with a reduction box so can't cope with extended cranking.

 

[Joel W.]

Plus, if it does not start in 1-3 cranks, something is wrong...and your washing down the cylinders and rings..(if the injectors are pulsing)

Edit: After reading this entire thread, I would take 2 mins and pull the distributor cap and see if the rotor turns when the engine is cranked over. I am leaning towards a snapped timing belt.. Don't ask me why, it is just my hunch and it's an easy test..

 

[shaeff]

i didn't see (though i'm tired and just got home from work) any indication that he checked for spark? if he has air, can smell fuel, there's one thing left, and that's spark...

it might be a good idea to check that, too.

-shaeff

 

[JesseH]

Ok, I finally got everything worked out, so I first thought it was the fuel pump, so I got a Walbro, installed it and still nothing (at least I won't have to do it later) . Turns out it was the FPR, but the reason why it wouldn't start after I changed it is aparently the resistor to my MSD coil got messed up. When I changed that today it fired right up in an instant, I also want to thank everyone for their help.:icon_bigg

 

[IJ.]

LMAO Sorry I assumed when you said it had been running fine before the fuel issue that all that was touched was fuel! DOH!

 

[JesseH]

Ok, just one more question, would changeing the FPR and the fuel pump to a walburo effect anything? now after Ive got everything fixed, the RPM's are seeming to lag a abit and not accel. as quick.

 

[IJ.]

It may be a bit rich, you could try dropping the base fuel pressure a touch if the FPR is adjustable.

Did you drill out the J tube restriction?

 

[JesseH]

It may be a bit rich, you could try dropping the base fuel pressure a touch if the FPR is adjustable.

Did you drill out the J tube restriction?

No, I just put in a stock one for now, when I get paid ill try to get a ajustable one

 

[IJ.]

Part 2 of my question?

 

[JesseH]

Part 2 of my question?

umm im not sure what you mean one the second question.

 

[IJ.]

Did you drill out the J tube restriction?

 

[JesseH]

Did you drill out the J tube restriction?

lol I mean Im not sure what you mean by that

 

[IJ.]

If you follow the return line down to the block there is a bracket bolted to the side that has a bent pipe, this is the J Tube and has a small orrifice as a limp home thing with the stock pump in case of fuel system failure.

When you install a bigger pump there isn't enough flow in the return line due to this restriction and it can make you run rich.

 

[JesseH]

If you follow the return line down to the block there is a bracket bolted to the side that has a bent pipe, this is the J Tube and has a small orrifice as a limp home thing with the stock pump in case of fuel system failure.

When you install a bigger pump there isn't enough flow in the return line due to this restriction and it can make you run rich.

ok, Ill be sure to do that when I get the chance, and about the ajustable FPR, I know this is cheap but would this work?http://cgi.ebay.com/ebaymotors/FUEL-PRESSURE-REGULATOR-BLUE-PRELUDE-COROLLA-SUPRA_W0QQitemZ8062601517QQcategoryZ33553QQrdZ1QQcmdZViewItem
Being 17 and not having much money I couldn't afford the kit off suprasport.com, but I dont want to get something thats not going to be safe or screw the supra up.

 

[IJ.]

Try drilling the J Tube first it costs nothing and may cure it.