Completed Project Brandon's mild 4.0 OHV build

[Brandon96]

I thought I had all of them pretty well put in there :/.. I wish I had someone here to turn the key while I watched to figure out where the fuel leak is hahah

I shot a video real fast of the latest start up cause I wanted to come inside and get warm for a bit lol.

 

[Xeek]

go buy a remote starter, hit button, watch fuel

just start it and try and get there as quick as possible to look

 

[Brandon96]

A video for you guys;

Note - COLD start up, it did NOT get into full lope. I put it in gear so you could get an idea of what it sounds like.. that failed.

It does sound a little different than this.. for some reason the video makes it sound like a farm tractor? Oh well.

 

[Xeek]

yea sounds like tractor/diesel. i like the sound

 

[Ronin8002]

You can try putting some vaseline on the injector rings to make sure they get seated completely in the rail/lower intake.

I'm not too familiar with the 96 fuel system. Is it a return style or returnless? Reason I ask is that you could also be leaking from the fuel pressure regulator where it hooks into the rail (for a return style fuel system)

In that case, try the vaseline trick for the fuel presure regulator O-ring also.

 

[jd4242]

That much gas it should be easy to find.glad it sound like the code cleared for now

 

[Brandon96]

James, It's a return system, when I first hooked it all up I noticed I smashed the o-ring on the FPR, had to go replace that, but it's in there and not leaking now. I will definitely try the vaseline method, I really hope I didn't smash any of the O-rings on the injectors as they're going to be darn near impossible to replace. I'm almost there, just have to disconnect the ERG crap to get the upper intake off..

 

[Ronin8002]

Gotcha. Yeah check all the o-rings and mating surfaces where the FPR and injectors go into the fuel rail, as well as both fuel line connections where they go into the rail. I'm pretty sure it's something with one of those.

 

[Brandon96]

Will do, I got down to the fuel rail now, I'm just taking a little breather to get warm. It appears like it's somewhere in the #5 - #6 area, possibly even on the other side near #3 as well.

IS is possible that one of the Injectors themselves is leaking? Like, can fuel literally come out of one of the creases in the body of the injectors?

 

[Maniak]

Ive never seen an injector leak out the body. After our rebuild i did have to replace an oring as i pinched it when installing the rail. I used olive oil to lube them the next time. Also, putting the fuel rail on the lower intake before installing the lower intake makes it easier.

~Mark

 

[Ronin8002]

could be. I never had it happen to me but I upgraded to new 24# injectors when I did my motor.

I guess if it leaks again after putting it all back together maybe you should get them checked

 

[jd4242]

could be the line also

 

[Brandon96]

Real fast;

What is the correct socket size (star bit?) for the fuel rail studs? I read somewhere it was like a reverse security star T6 or something? I'm going to run up to Lowe's, I used a 5.5mm 5 star bit, I'm not sure I got it torqued all the way down with that.. anyway, anyone know? I'm going to keep searching the forum, I know I seen it somewhere..



EDIT -- Here's an idea, why don't I just take the stud up to Lowe's with me, and try and find the bit..

 

[jd4242]

E-7 quick enough!!hahha

 

[Brandon96]

E-7 you say? Jeeezus tap dancing Christola JD is there anything you DON'T KNOW?

I'm going to PM you my number, can you shoot me a text so I can get your number and just text you whenever I have a problem from now on? loL!!

 

[Xeek]

sometimes i swear jd designed the 4L ohv in cad for ford....

 

[jd4242]

Naww my dad Sven Pruett did though!! haha j/k

 

[jd4242]

This site is where i learned alot!!

 

[Brandon96]

So far I'm down to the lower intake and valve covers.

I don't know what could cause this other then over tightening the valve covers, but the cork gasket actually is broken around the bolt holes!! I'm going to remove it and use some of the right stuff err I forgot what it was called, squirt on gasket just to be safe. Here's some pictures of the leak; it appears the #4 injector is the culprit so far, it was spraying fuel EVERYWHERE. I did notice dripping fuel on the cam sensor, so I'm going to investigate it further before I put everything back together.

p.s. - Like my vacuum line fix? :

 

[Willard]

If you want to know where it's leaking, pop out the relay for the fuel pump and use a piece of wire or something to jump it. Then you can watch while the fuel pump runs.