BruceofBruce

hey all so I'm a long time lurkerhere and I need some advice.

ok here's my Deal.
I've got a 94 4runner.
4.0 v 6
with 170K on it.
runs like a champ.
well it did until the fuel line rotted through....
so I ordered the parts from my local Toyota Dealer.
filter, and front and back lines.
drained the tank, pulled the lines and filter out.
and well here's the tricky part.
everything is so corroded from the New England winters that I couldn't get the lines apart from the front hose fitting.
and the fitting on the fuel pump.
the fittings are fused together......and nothing is getting them apart. PB Blaster, vice grips, big Dudes from the Marine Corps......
so.
now it looks like I need to pull the line that goes up into the injectors on the back of the engine.....
that and every time I touch some thing on this beast something else seems to break....

now I'm comfortable in my ability to turn a wrench,but digging in this engine makes me a little wary....
so here are my questions
anybody ever done this before?
if so is there anything I should be on the look out for?
is this super tricky?
should I suck it up and get it towed to a shop and pay them to do it or should my weekend warrior Mechanic skill carry me through?

thanks for the help.
--
Fear is the Mind Killer.

PCE91V64x4

If I understand your problem it was the same as mine.

I replaced everything from the flex-line in the engine back to the fuel tank. To break the connection from the hard line to the flex line (right inside the passenger front wheel well) I cut the hard lineright behind the fitting and pulled the flex line up into the engine compartment (it is just barely long enough to bend up in there). Then, I used a line wrench on the flex line and put a socket on the fitting of the hard line and got it to come apart. I put a 2x4 on the engine and used that as leverage for the line wrench.

This may not make sense but if you give it a try you will see what I did.

seanmearse

You mean 3.0, right?

TNRabbit

Yeah, if you have a 4.0 V6 I'm comng to steal it from you~

BruceofBruce

YEAH SORRY SLIP OF THE KEYBOARD.

so you think I can get away with replacing the fitting on the flex line?
I don't see this thing coming apart.....


I also have to drop the tank to get to the fuel pump.
and I can't seem to get it out of the frame....maybe if it was a little smaller.
anybody got a way to get the tank out with out pulling the drive shaft?

seanmearse

Keep soaking it with pb, repeatedly, for a few days. Tap ont it with a SMALL wrench, eventually it has to loosen up, or break...

Or take it to a shop and have them do it, its still a viable option.

OutlawMike

Whatever you do, don't use heat on it....seriously, I know someone who did that, bad things happen when you put heat on a fuel line.

mac9968

Did you get it appart, I am in the same boat at this point had to drop my tank, and there was no way to get the hardline to rubber hose apart, I ended up cutting the rubber line. Not before the priing and pull caused a leak in the hard line, but behind the flexiable hose at the tank, and on the pumpframe in the tank itself.

I would like to replace a large section of hardline with highpressure rubber/flexiable line

BruceofBruce

OK........well it has not come apart.
event wit a vise and a few sections of pipe for leverage.
even after 2 weeks in PB blaster......
so.
think I'm going to cut the flex line and see if heat will help.
away from the gas and gas fumes!
then splice it back together.
if it come's apart that is.
any other Ideas before I start cutting?
how about for splicing the flex line back together?

mac9968

I took a tubing cutter and cut the ridged line and also the pump stand and added a secion of 3 foot high pressure rubber fuel line in its place. Effectively eliminating the flex hose, and connectors that I could not get appart.

This was done a few weeks back, and I have been running fine, no issues with this mod. The rubber secion has been secured so it does not move, or rub on any part.

BruceofBruce

awesome.
so what did you use to connect the new line that replaced the flex tine to the steel fuel line?
if you did?
B

Squiddy

See my post: https://www.yotatech.com/forums/f116...nsight-131902/

mac9968

Gates stainless steel hose clamps. I also used a tubing tool to flare the tubbing. It looked similar to the fuel pump bracket.

BruceofBruce

flexi fuel line from the injectors to the hard fuel line spliced and replaced.

hard fuel line from forward flexi line to fuel filter replaced.

fuel filter replaced.

hard fuel line from fuel filter to rear flexi line replaced.

fuel tank fuel pump bracket, gasket and bolts replaced.

flexi line from fuel tank bracket replaced

fuel pump and internal filter cleaned and installed on new bracket.

reinstalled the tank....no mean feat by my lonesome ....and then the....DRIVE SHAFT....

filedl it with some gas...then Jumped it because it was sitting so long........and PRAY....

AND SHE RUNS!!!!!!!!!!!!!!!!!!

but


in all that tinkering a forward break line burst.....
GRRRRRRRR

and the parking break won't let go.......well the cables are fine but the drums them self are stuck....

90-3vzeslug

bruceofbruce I'm sorry to hear that man! Sounds like my truck, i fix one thing and something else breaks. WTF! did a tuneup the other week and then the intake hose cracks. fix that and then I start leaking oil. (still haven't fixed that or the sloooowww m/c leak yet)