GB Remanufacturing (Rock Auto) fuel injector rebuild kit

Discussion in 'Mazdaspeeds.org Official Parts Reviews Section' started by _Mazdarati, Jan 10, 2019.

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  1. Alden

    Alden Greenie Member

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    Sorry to bump an old thread.
    Ill be cleaning my intake valves soon, and also wanted to pull the injectors and replace the seals due to some issues I think are related to the seals leaking. With that said, are those rock auto seals still going strong? I really don't feel like splurging on CS seals right now, so this seems like a viable option at the moment.
     
  2. _Mazdarati

    _Mazdarati Resident Asshole Silver Member

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    Yes, the top section seals I replaced are still good (the portion of the injector that goes into the fuel rail).

    I have upgraded seals for the portion that goes into the head. This rebuild kit is only good for the o rings on the top of the injector. These are not an alternative for upgraded seals like CS and Overspeed seals.
     
    _Mazdarati, via a mobile device, Mar 30, 2021
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  3. Alden

    Alden Greenie Member

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    Gotcha, definitely misread. Apologies! Looks like I'll just bite the bullet and spend on the CS seals.
    I've got a buddy who can sell me some used ones that he had for a short time, but I'm hesitant to reuse these seals, as they're meant to be a 1 time use.
     
  4. Awafrican

    Awafrican Moderator Gold Member

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    Don't re use the seals I'd put money of them leaking go ahead and buy new overspeed seals
     
    Awafrican, via a mobile device, Mar 30, 2021
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  5. Alden

    Alden Greenie Member

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    Appreciate the input! I wont be reusing them! I'll likely go with CS seal though, they are cheaper right now. Comes to like $265 CAD after shipping and taxes.
     
  6. JohnnyTightlips

    JohnnyTightlips Platinum Member

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    Has it been shown that the seals with this kit are no good? Has anyone tried them out long term or at all? I would assume they work as well as OEM which for most people last 100k miles. I would think in a pinch where money is tight they would get you back on the road without issue as @Alden is trying to do. If you have time to swap seals a few times "really not that difficult" he might as well test these until he has money for better seals.
     
  7. Alden

    Alden Greenie Member

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    This is essentially what I'm trying to do. I have a wedding coming up very soon, so my funds are more geared in that direction at the moment, and I'd really like to get rid of these cold start/idle issues and misfires I've been having.

    Honestly, I'm not pushing big power, and I drive the car quite gingerly. The stock seals are 9 years old at this point, so if the rock auto kit even lasts a few years, id be happy. I'm just hesitant to install them, and have them immediately fail/leak.
     
  8. JohnnyTightlips

    JohnnyTightlips Platinum Member

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    I would try it out if you have time and not money. It is not like you are out anything but some time. Worse for worse you end up getting CS or Overspeed seals and have some data for the forum. You might want to look at replacing the intake manifold gasket with an AP one while you are there unless you have a fresh gasket. HERE not cheap but you can re-use it multiple times and it won't leak.
     
  9. Alden

    Alden Greenie Member

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    I've certainly got the time. Currently just driving my winter beater, so no rush. I'll take a look at replacing the gasket as well, appreciate that. I'm excited to just work on the car, its been a while. I'll have to make a decision soon about what I'm going to do with the seals.. I'd very much like to get the car on the road sooner than later. lol
     
  10. _Mazdarati

    _Mazdarati Resident Asshole Silver Member

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    I read his reply more as "can I use these as a substitute for CS type seals", for a power application.

    No idea if those ones last, I don't see why they wouldn't. I'm more of a if you're in there, might as well upgrade it off the rip kind of guy. I'd just hate to see you install those ones and they end up failing sooner than later.
     
    _Mazdarati, via a mobile device, Mar 30, 2021
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  11. Alden

    Alden Greenie Member

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    That's my fear right now, but like i mentioned, I'm not too concerned if I need to replace them in a season or two. I've got full bolt ons with a tune, so i'm not pushing any crazy power... heck, the car RARELY see's anything over like 8psi of boost. lol
     
  12. Awafrican

    Awafrican Moderator Gold Member

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    I'm in Canada as well, hit up graveyard performance mso5 for 5% off shipping was cheaper than CS and I only paid duties on 70$ and I had 4 sets in the order along with injector studs and hpfp rebuild kits ;)

    Not about what's cheaper unfortunately CS seals seems to have reports of leaking lately most seem to be jumping to overspeed seals when the time comes.
     
    Awafrican, via a mobile device, Mar 30, 2021
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  13. Alden

    Alden Greenie Member

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    CS seals are currently $20 off right now, probably why it came out to be cheaper for me than the overspeed seals, even after the discount code. However, I do appreciate that coupon code!

    We'll see. I might just attempt using the seals from the rock auto kit, even if they only last 10K km. I'm notoriously indecisive, so I really need to make a decision this week.
     
  14. Awafrican

    Awafrican Moderator Gold Member

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    Oh I forgot OSS motorsports in Winnipeg is a CS dealer they don't list parts on their site yet but I know they have some stuff in stock give them a call before ordering with CS and see who's cheaper may be CS directly but worth the call
     
    Awafrican, via a mobile device, Mar 30, 2021
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  15. Alden

    Alden Greenie Member

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    I'll give them a call if I go that route! Thanks!
    Regardless, I'll keep this thread updated with whatever I choose to do over the next few weeks. I'll also update at a later date if I run the Rock auto seals.
     
  16. Alden

    Alden Greenie Member

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    Contacted OSS motorsport. Quoted me 278+ Tax for the CS seals, essentially the same as going through CS directly. However, you never know what kind of broker fees you'll get hit with when ordering straight from CS. UPS hammered me with an additional 60$ broker fee upon pick up, on top of my shipping cost when i ordered my hood scoop. So if i do go with the CS seals, i'll be going through OSS.
     
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  17. Awafrican

    Awafrican Moderator Gold Member

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    Just got these in, all of the black spacers have splits in them there must have been a revision.

    Anyone got pics of the orientation that they go on the injectors, OP has the order but no orientation?

    I had mine cleaned, never took previous ones off, hoping orientation didn't get messed up by guy who cleaned them BUT I pinched the shit out of the blue seals when putting the rail on despite lubing them and seating the rail so I want to be sure.
     
    Awafrican, via a mobile device, Apr 8, 2021
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  18. DualSpeed

    DualSpeed Silver Member

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    Here's one. 20210309_121009.jpg

    The taper split one goes on the bottom.
     
    Last edited by a moderator: Apr 8, 2021
    DualSpeed, via a mobile device, Apr 8, 2021
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  19. Awafrican

    Awafrican Moderator Gold Member

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    @JohnnyTightlips to the rescue thanks also thanks @DualSpeed
     
    Last edited: Apr 8, 2021
    Awafrican, via a mobile device, Apr 8, 2021
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  20. Alden

    Alden Greenie Member

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    Ok guys, i went with stock seals and used the GB kit for the rest of the upper seals. Got my valves nice and clean, but MAN the injectors. F*$K me were they hard to get out. Using CS slide hammer still took almost two hours to get all 4 out. Horrible. But everything went well, no problems other than the injector removal.

    Car is no longer having brutal cold starts with misfires, so that's great! Still seems a little jumpy on cold start and idling, but I just ordered some new plugs, so I'm thinking that will solve that problem. It didn't look like my seals were leaking much though, so I'm honestly not sure what was causing the brutal cold start problems, but it seems to be related to the seals, since all i did was clean the valves and swap seals.
     

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