should fuel be getting past the fuel reg when ignitions switched on and it primes

[wana s' charge stock vt]

hi, just wondering if any fuel should be getting past the fuel reg when you first turn the ignition on and the fuel pump switches on to prime.

i just have fuel comming thru the return line when i do it. is that my reg playing up or normal???


thanks

[TheIceman]

yes it is normal. where else can the fuel go when the pump starts?? if it doesnt go through the regulator it will probably blow a line out with excessive pressure.

[wana s' charge stock vt]

bugger, i thought it was ment to block it off to build up pressure. then once it starts the vac sucks the reg open and let's it thru.



just got new injectors and taking a while to start now, never done it till swapped injectors and pulled out reg.

[TheIceman]

it has always done it, maybe it has just got air going through it and thats what your hearing. and yes it will block off fuel until it reaches certain pressure, this only takes under a second to do, and yes the vacuum will decrease pressure in fuel rail so with engine not running the pressure in the rail will be higher as no vacuum present.
and after new injectors it will initially take longer to start until all air is out.

[wana s' charge stock vt]

it has always done it, maybe it has just got air going through it and thats what your hearing. and yes it will block off fuel until it reaches certain pressure, this only takes under a second to do, and yes the vacuum will decrease pressure in fuel rail so with engine not running the pressure in the rail will be higher as no vacuum present.
and after new injectors it will initially take longer to start until all air is out.

so it's normal that its taking a while to start with new injectors? it been a day so far and still taking a while to start, hasnt changed at all.
were just about to put the old injectors back in. its pinging a fair bit too under light load/throttle.

[delcowizzid]

what injectors did you fit direct identical ones

[wana s' charge stock vt]

pretty sure they are, just the cream ones. they look the same and were told that they were l67/super6 injectors. will check the numbers on the side thou just too double check..... there not brand new, just reco'd but were 100% spot on with warranty and he has the highest rating and most sales on ebay out of any other injector supplyer so guessing he dose ok.. he said this has happened twice out of the years hes been doing it, and both were holden v6's but he can not get an answer as to why. when he got them 2 sets back they didnt leak, and still showed up 100%..

and thanks for the reply delco

[wana s' charge stock vt]

well faaark me, just changed the plugs and the ceramic part is a yellowy orange colour. say's on the plug diognosis chart that its from lead.

[wana s' charge stock vt]

wierd

[delcowizzid]

been pretty hot maybe lean as maybe fit the old ones

[wana s' charge stock vt]

were just thinking. last time i filled up every 98octane pump was out of service but 1, i used it and it was real slow to fill and was pulsing like it was struggling to get fuel, then the fuel truck pulled up so may have got the crap from bottom of tank. filled up the same day as changing injectors.

[TheIceman]

who knows. lift the injectors, start fuel pump going and see if any are leaking. might have a dud set of injectors. the d00d might have thought he cleaned them but forgot to or something. but yeah that plug looks like lean running. may have another issue as well?

[wana s' charge stock vt]

not sure what the hell to do now lol, tank was nearly empty so went for a quick fang and try'd to use most of it and just went and put in $20 petti and seems 100% better. booted it from 0-100k's had 1 little miss at about 90k's. , befor putting in the new fuel it would miss/fart carry on 2-3 times a second under full boost,
mayb the new plugs, mayb the new fuel not too sure but its a hell of alot better. will see how it starts shortly after sitting for a bit. if still turns over a few times befor starting i'll change the injectors back and see what happens.

[wana s' charge stock vt]

who knows. lift the injectors, start fuel pump going and see if any are leaking. might have a dud set of injectors. the d00d might have thought he cleaned them but forgot to or something. but yeah that plug looks like lean running. may have another issue as well?

took em out and primed it up a few times and seems to be leaking to me . the injectors are sitting in the rail upside down all connected, blow the ends of the injectors out till dry and then prime the fuel pump and then gets little puddles of petrol sitting in the end of the injectors, blow iit out again and returns again....... correct me if im wrong but thats classed as leaking isn't it?

[wana s' charge stock vt]

old ones back in and it starts in an instant.

[delcowizzid]

must be dodgy injectors ide never buy cleaned ones anyway the pintles get pitted and no amount of cleaning will fix them they dont last forever

[wana s' charge stock vt]

yep, def dodgy. i should get all the money back thou so be ok, he seemed like a resonable guy. fingers crossed.....
thanks for the advise/replys

[wana s' charge stock vt]

injector guy can't believe it, he's devastated. said mayb 1 out of 100 leaking but never 5 out of 6, said would give a full refund and clean/test/reco mine if i like for free for the hassle.. bloody champion.

[acarmody]

Wow thats some massive bad luck right there. Nice to know hes good about it.

Whats the name of the company/dude? I used Injector Corrector up in North Brissie. Also called Injector Express.

[wana s' charge stock vt]

lol, no sh!t. was a head fu@k alright. drove me a bit crazy,

but yeah he's been real good about it, pretty stoked with him really, he cant believe it himself, he's truly sorry about it all. but get all my money back plus get mine reco'd for free, so can't complain about his service.

he's company name on ebay is injector co. he's got 500ish sales with 100% positive rating, better than any other injector company on ebay. . think i just got unlucky, i reckon i got bad carma with motors for some reason... dunno why thou