[Mk2] [Turbo] **FIXED** *NO fuel coming out of return fuel rail line!

[jimGTS]

Ok I checked the cams last night. I couldn't check them to tdc, as I couldn't find a rod or pole to see where the piston tdc was.

Anyway, both cams lined up to the backing plate markers fine.

So either there both out by a tooth or 2 or the timings ok.

[Dale_V]

well, no. The crank could have jumped a tooth. Surely you had a screwdriver lying around to put down the no.1 bore

[jimGTS]

Well yes, as as I say there fine to each other, so either both out, or perfect (which would obviously suggest crank jumped)

I have a few breaker poles I use, but nothing thin and long enough to pop down there. The car is still apart in the garage anyway, so no biggy for when I do find something.
But how accurate could a pole really be? +/- a tooth accuracy?? Not really ideal.
Should I be checkng alignment as soon as it reachs it peak tdc, or as soon as it starts going down? As I know there's a slight delay isn't there?

Cheers

[Dale_V]

a screwdriver down the bore is very accurate, afterall its a watered down (dial gauge) way of dialling in cams properly. with the engine in situ it will be easier with 2 people. Get 1 ontop of the engine examining the screwdriver going up/down, and 1 on turning the crank pulley slowly. When the screw driver stops rising out of the bore, then that is TDC. At that point the cam markings should lign up against the markings on the metal backing plate.

Well yes, as I say there either fine to each other, or both out (which would obviously suggest crank jumped)

no it wouldnt. both pulleys would be out of allignment (against each other) if a cam pulley had jumped. If the crank has jumped then the cam pulleys will still be in allignment.

[jimGTS]

Dale isnt that what i'm saying???

If the cams line up different, cam jumped
if cams line up the same, crank jumped

confused.

[Dale_V]

Dale isnt that what i'm saying???

If the cams line up different, cam jumped
if cams line up the same, crank jumped

confused.

confusion here lol

you started off by saying:

Anyway, both cams lined up to the backing plate markers fine.

So either there both out by a tooth or 2 or the timings ok.

which really shouldnt have been brought into topic until you had done a full allignment check. your above quote, to me means that you think that both the cams have jumped a tooth? which I was trying to say that it doesnt, basically the power is starting from the crank, the crank pulleys teeth are the ones that get the biggest hit, meaning if the belt was to slip it would slip from the crank, leaving the cams still alligned.

You really do need to do a full timing test for us to eliminate that and go to the next stage, otherwise we can only talk with 'what if's' lol

[jimGTS]

i think all i ment by that was, if it was out by a tooth or 2 it would be because of the crank as they still both lined up to each other at the backing plate....
was basically saying the cams would have been out because of the jump at the crank.

either way, ill try and find a straight pole today/tomorrow and try again
least ive illiminated the cams jumping away from each other, correct?
so its either a crank jump, or everythings fine?

thanks for you comments.

[Dale_V]

yep you have eliminated the cams jumping. like you say, another 5 mins testing will prove if the crank has jumped.

If you do find the belt has jumped, then I wouldnt bother re-alligning, id buy a new toyota belt and tensioner.

when i first read the topic, my initial thought was a fueling issue

[jimGTS]

when i first read the topic, my initial thought was a fueling issue

still could be
who knows, ive almost given up.

only thing i can cling onto at the moment is the car was drivable from the garage i brought it home from after they timed it up, and all ive done is a fit a rev3 rail and injectors, and refit my custom exhaust manifold. nothing else has bene touched apart from sorting the resistor pack out for the injectors (it was bypassed).
so really, for it to develope another issue would be royal bad luck!

[Dale_V]

thats what I mean, all was ok until you fitted a rev3 rail and rev3 injectors

this isnt on the same scale by any means, but on my old NA engine the engine would tick over fine, but ANY revs and it cut out... start it back up and it idled, rev > died again... the issue was lack of fuel!

where did you get the rail and injectors? are they known to be good items? are you 100% positive the wiring you re-did is spot on? .... Do the cambelt timing first, but if that is fine I would be tempted to pull the inlet manifold off and fit your 850's.

[jimGTS]

thats what I mean, all was ok until you fitted a rev3 rail and rev3 injectors

this isnt on the same scale by any means, but on my old NA engine the engine would tick over fine, but ANY revs and it cut out... start it back up and it idled, rev > died again... the issue was lack of fuel!

where did you get the rail and injectors? are they known to be good items? are you 100% positive the wiring you re-did is spot on? .... Do the cambelt timing first, but if that is fine I would be tempted to pull the inlet manifold off and fit your 850's.

the car can also have lack of fuel through bad timing tho correct??

i got the rail and injectors off here.
someone was going to use them on a rev3 ecu conversion. they looked ok to me, resistance on them was spot on.

but i will say this dale, i had the same symtoms before the timing was sorted..and that was with my 850s....same fine idle (missing when revved hard, light throttle = revved ok), so what are chances my 850s AND new 540s are dead.

i checked continuity of injectors to ecu and resistor pack and all checks out.
my rewiring is fine, you can see in the 2nd pic of page 1, these were soldered.

[Dale_V]

thats what I mean, all was ok until you fitted a rev3 rail and rev3 injectors

this isnt on the same scale by any means, but on my old NA engine the engine would tick over fine, but ANY revs and it cut out... start it back up and it idled, rev > died again... the issue was lack of fuel!

where did you get the rail and injectors? are they known to be good items? are you 100% positive the wiring you re-did is spot on? .... Do the cambelt timing first, but if that is fine I would be tempted to pull the inlet manifold off and fit your 850's.

the car can also have lack of fuel through bad timing tho correct??

i got the rail and injectors off here.
someone was going to use them on a rev3 ecu conversion. they looked ok to me, resistance on them was spot on.

but i will say this dale, i had the same symtoms before the timing was sorted..and that was with my 850s....same fine idle (missing when revved hard, light throttle = revved ok), so what are chances my 850s AND new 540s are dead.

i checked continuity of injectors to ecu and resistor pack and all checks out.
my rewiring is fine, you can see in the 2nd pic of page 1, these were soldered.

ah right, I never knew you had the same issue before on the old rail and injectors, this does seem very odd

can you list EVERYTHING you have replaced/checked. Shame you are not closer as i'd like to have a look

[jimGTS]

All stuffed checked is in this thread. And the thread I linked to in my first post.

[Dale_V]

im stumped, report back when timing is checked

[jimGTS]

im stumped, report back when timing is checked

exactly, why you think its been a nightmare, lol...

ill check tdc when i can.
managed to get an offer for help with the cambelt side of things if it turns out i do need to do a cambelt change, so thats good.

[Dale_V]

im stumped, report back when timing is checked

exactly, why you think its been a nightmare, lol...

ill check tdc when i can.
managed to get an offer for help with the cambelt side of things if it turns out i do need to do a cambelt change, so thats good.

thats not too bad

as for nightmares.. im on my 3rd engine this year so I know how you're feeling

[jimGTS]

Ok I tried the pole down the plug hole trick.

Got the misses to look at my pole . when it stopped, cams lined up with the cam backing plate. We tried 3 times, 2 times bang on lined up, 1 time bout half a tooth out. But guess that could have been a slight error.


Either way, to me, seems bang on.

[stiggy]

I've got exactly the same problem at the moment. I'm running a ST205 on the standard ECU and injectors. I had my fuel pump replaced about 2 weeks ago, and the car ran fine for a week. Then, a few days ago I got the exact same thing as you: From absolutely nowhere, the car suddenly felt very hesitant and within a mile or so it was totally undrivable. The car will start and idle fine, and if I depress the throttle pedal slightly I can get the rev's to build cleanly but if I press the pedal more than about 10% down the car becomes very lumpy indeed and by the time the pedal is anywhere near fully down the car just dies.

What have you checked on the fueling side? Is your fuel pressure ok? I'm pretty convinced my fault is fueling related, as it seems like more than coincidence that this has happened within 100 miles of changing the pump.

If your fuel pressure is too low, it would also explain why your car runs ok on the standard ECU with 800cc injectors. The pressure drop and the bigger injectors cancel each other out!

[jimGTS]

Big thanks to tom over on the oc. Came over and spent most of the day swaping in another lower timing belt cover. Huge thanks for his time!
And thanksto gtschris who got me that timing cover in under a day! Excellent secondhand part service.

Tell you what, good 5 hours work, lol. Just for a timing cover. Had some royal grief, lol
next time well do the belt, tensioner etc etc. But for time being shows nothings jumped, and all timing parts are fine. So I can do that another date.

anyway. Tdc on the new cover does indeed show cams are bang on!!
So screw driver, now timing cover shows mech timing is bang on!
However didn't have time to check ignition timing, that's tomorrows job as well as a few other bits I need to put back.

[jimGTS]

Stiggy, thanks for response.

Interesting.

It really only leaves fueling or electrical issues now.

Was you car Completely undrivable???
I've swapped in another rail with injectors, so my
fpr has to be ok, unless I got 2 duff ones which is unlikely!

I think I really need to be looking at fuel pump now, and replacing fuel filter to.

I've just got ig timing to check then fuel now!

Oh and I picked up my brand spanking new power fc and commander from customs today!!! Looks mint!!
Woo!!!