Injector seals solution - Gen 2

[TiGraySpeed6]

They /should/ be....

You can find these things everywhere. Great example would be marine generators where the small Toyota diesel is one of the most prevalent out there.

Toyota has their toes in several places...

[thatsmrgimp2u]

I've notice something after installing these, when I start my car when it's cold, starts up like a champ. Let's say I drive to the mall and make a quick run in and out, when I go to start my car again she struggles a bit, but still fires on the first try. Thoughts? The hotter it is the harder it is to get cranked. But my pressure is fine and I have 0 knock.

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[knarfies]

i wasnt sure or cant remember if this started afrer the seals but i did notice once in a while when turning over itll sound like its bogging on first fire and then acts as normal. is this similar to what your talking about?

[thatsmrgimp2u]

Originally Posted by knarfies i wasnt sure or cant remember if this started afrer the seals but i did notice once in a while when turning over itll sound like its bogging on first fire and then acts as normal. is this similar to what your talking about?

Exactly, but only after it's warm


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[knarfies]

ya i know what you mean. it doesnt happen to me all the time, just randomly. maybe once every 4-5 days.

[jmhinkle]

My car does that as well and I don't have these seals. I think its something in the tuning or setup

[knarfies]

ya, honestly...i think it started when it started to warm up. i guess tune makes alot of sense too. joel let me know if you figure out a solution or cause : )

[TiGraySpeed6]

My knee-jerk thought is a fuel pressure issue, but the pump is supposed to prime the system when the drivers door is opened to prevent it....

[thatsmrgimp2u]

Well, it could be a leak that's only recognizable when the pressure just sits in the rail... And none of the "juices" are flowing. It would have to be the tiniest of leaks because my fuel economy is better than ever.

On a cold start the pump will prime a bit more than compared to a warm start right? Or is it always the same?

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[thatsmrgimp2u]

Then again... wouldn't a leak be easily detected by smell?

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[TiGraySpeed6]

in my scenario it's an issue of fuel returning to the tank when it's supposed to remain at the front of the system & ready to be injected. Not so much a leak to the open air

[Tokay444]

Driver's door?
Where did you read that?

[thatsmrgimp2u]

I always thought it was turning the key. Same concept though. Shits getting primed, lol.

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[TiGraySpeed6]

fuck- that was my euros (gti & a4)

Key turn in the speed6 primes the system

[thatsmrgimp2u]

Originally Posted by TiGraySpeed6 in my scenario it's an issue of fuel returning to the tank when it's supposed to remain at the front of the system & ready to be injected. Not so much a leak to the open air

What brought you to this conclusion?

[TiGraySpeed6]

Just a knee-jerk response to symptoms which are similar to other, older vehicles that would exhibit the same symptoms. Not a single one of them was direct injection, so I have no direct tie-in.

Tho, now that I think about it, old school vapor lock is a better match to the base symptoms- good cold start, poor warm start. Any drain back or system prime is more of a cold start thing I suppose.

[knarfies]

not to throw a wrench in your theories but mine did it while cold this morning. (shrug ) i dont think its anything to worry about i suppose

[Enki]

It could be a form of vapor lock (in the way that not enough fuel is being sprayed before spark due to the heat/pressure of the fuel), but I hope you understand that the fuel systems on these cars are returnless.

[thatsmrgimp2u]

Originally Posted by Enki It could be a form of vapor lock (in the way that not enough fuel is being sprayed before spark due to the heat/pressure of the fuel), but I hope you understand that the fuel systems on these cars are returnless.

I know it's not considered a return system, but I imagine he's referencing the fuel rail valve back to the hpfp.

So should this get chalked in the No Big Deal category?


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[TiGraySpeed6]

Thanks, but no, I was thinking good ol' fashioned return.

Happy to own up to being wrong. Just want to trigger ideas/conversation on the problem

[802MS3]

intank pump hurting?

[pzr2874]

^I thought that initially. Is there adirect replacement to our? Maybe an avo or walbro?

[mituc]

That;s unlikely to be caused by the injector seals. if the injectors are sealed properly it doesn't really matter if you do it with chewing c^Hgum or you weld them in. The jerky startup is most probably fuel/ignition related (meaning that you need to check the plugs and/or monitor the FRP during these startups and log it along with a few other params).

Als keep in mind that during cold startups the engine speed goes up to 1750 (which means also higher fuel rail pressure) and after that much time the spark plugs are also dry. After a short drive the condensation resulted during the engine heat-up may still be there (and if you notice this symptom only after short drives preceeded by a cold start it's most probably condensation related).

[fredricktsang]

any long term reports on these seals?

[Dano]

not long term but I have about 5K on mine with a ton of WOT at just under 400WTQ. I left my insulator foam out and can see the injectors and there is no carbon or fuel seeping out as of yet.

[phate]

I just wiped the majority of injector seals from the Chicago distribution center haha. 16 seals should be here tomorrow!

[silvapain]

Originally Posted by phate I just wiped the majority of injector seals from the Chicago distribution center haha. 16 seals should be here tomorrow!

¿Why you haz so many?


Tapadatass

[phate]

2 6's to build and backups in case I screw them up haha. If nothing else, nator folks will have them available.

[daztdMS6]

Mines are going in on Friday....

[jack_hammer]

Originally Posted by fredricktsang any long term reports on these seals?

@paveltol should be able to tell you the best, since in the OP he says they're already installed in multiple high power cars. unless you're going to start a second cold war and say you don't trust the russians.

[breakfstincluded]

sneaky fuckin russian...

[himurax13]

Originally Posted by broncojd78 @paveltol should be able to tell you the best, since in the OP he says they're already installed in multiple high power cars. unless you're going to start a second cold war and say you don't trust the russians.

You trust the Russians?

I was unaware there was long term use from the Toyota Seals, I was just told that they are a cheap alternative.

[Dano]

yes they are first

Sputnik and now Toyota seals in the Mazda DISI

[fooqr]

Russia had Sputnik, we countered with the internet.

Now the Russians have upped the ante with these Toyota injector seals, and the ball's back in our court once again.

Nicely played, comrades. Nicely played.

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[jack_hammer]

Originally Posted by fooqr the Russians have upped the ante with these Toyota injector seals

the russians countered with toyota? my brain just melted.

[fooqr]

Originally Posted by broncojd78 the russians countered with toyota? my brain just melted.

You see? It was so far out of the box we never saw it coming, never had a chance. Brilliant!

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[DiGi Faggot]

Installed mine GTG. Engine compression stayed the same. Dont know if its been mentioned. These seals look like they crush when you install them.

[CWP_MS3]

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