Jump to content
SAU Community

Helicoil Expert Required For Ej20E Timing Tensioner Rethread.

PickleNick

By PickleNick,
in Queensland

 Share

Recommended Posts

PickleNick Enthusiast

PickleNick

Posted
Posted (edited)

Hi guys in a very desperate situation.

Was replacing the water pump on the girlfriends 99 RX EJ201 N/A impreza and when I attempted to reassemble the timing belt etc. the thread on the tensioner pulled some of the alloy out with the bolt. :@

My biggest dilemma is I am more than capable at doing the majority of mechanical work, but I have never attempted a heli-coil and nor do I have the equipment.

Any one able to help out or suggest someone fairly low cost. I'm not concerned if you are not a qualified mechanic as I am neither just someone that knows what they are doing.

The bolt diameter is 10mm.

The car is located in Runcorn

Please PM me or sms 0415 054 949.

Edited by PickleNick
blk94r33 Mentor

blk94r33

Posted
Posted

I wouldn't recommend helicoiling it as it's a fairly important bolt. I've had a couple pull the threads our after their 2nd or 3rd belt change, that whole piece under the aircon pump unbolts and can be changed with a second hand item.

RBC33 Collaborator

RBC33

Posted
Posted

actually helicoiling is quite common in aluminium, as the helicoil in the aluminium is actually stronger than just a thread in aluminium. Something to do with the surface area of the helicoil on the aluminium.

Its not all that hard to do really, go buy a helicoil pack, it gives you a tap, you drill the hole out to the size it specifies, tap the hole with the provided tap and then wind the helicoil in and snap the little tang off once its in as far as you want it.

In saying that, if you can change the part as said above id be more inclined to do that as you want to ensure its all drilled and tapped square, and its alot harder to do that when its on the car compared to a drill press or mill.

Kiwi_Phil Rising Star

Kiwi_Phil

Posted
Posted

+1 to the above post, helicoil is piss easy, drill, tap, coil, snap the end off. Can be difficult to do while in an engine bay, get it out of the car so you can drill square

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • tylink720
      "Cheap" bolt on turbo on RB25DET NEO

      By tylink720 · Posted

      @Kapr Haha yeah thats the one. I missed that you had a built up engine, I wouldn't want to run it on there either then. It was good in my situation just to replace the original turbo on a stock engine. @MBS206Yep definitely not a replacement for anything name brand
    • Kapr
      "Cheap" bolt on turbo on RB25DET NEO

      By Kapr · Posted

      You are selling this? I have never bought something from marketplace...i dont know if i trust that enough. And the price is little bit "too" good...
    • Watermouse
      "Cheap" bolt on turbo on RB25DET NEO

      By Watermouse · Posted

      https://www.facebook.com/share/19kSVAc4tc/?mibextid=wwXIfr
    • Kinkstaah
      Airbox for +T

      By Kinkstaah · Posted

      It would be well worth deciding where you want to go and what you care about. Reliability of everything in a 34 drops MASSIVELY above the 300kw mark. Keeping everything going great at beyond that value will cost ten times the $. Clutches become shit, gearboxes (and engines/bottom ends) become consumable, traction becomes crap. The good news is looking legalish/actually being legal is slighly under the 300kw mark. I would make the assumption you want to ditch the stock plenum too and want to go a front facing unit of some description due to the cross flow. Do the bends on a return flow hurt? Not really. A couple of bends do make a difference but not nearly as much in a forced induction situation. Add 1psi of boost to overcome it. Nobody has ever gone and done a track session monitoring IAT then done a different session on a different intercooler and monitored IAT to see the difference here. All of the benefits here are likely in the "My engine is a forged consumable that I drive once a year because it needs a rebuild every year which takes 9 months of the year to complete" territory. It would be well worth deciding where you want to go and what you care about with this car.
    • GTSBoy
      Airbox for +T

      By GTSBoy · Posted

      By "reverse flow", do you mean "return flow"? Being the IC having a return pipe back behind the bumper reo, or similar? If so... I am currently making ~250 rwkW on a Neo at ~17-18 psi. With a return flow. There's nothing to indicate that it is costing me a lot of power at this level, and I would be surprised if I could not push it harder. True, I have not measured pressure drop across it or IAT changes, but the car does not seem upset about it in any way. I won't be bothering to look into it unless it starts giving trouble or doesn't respond to boost increases when I next put it on the dyno. FWIW, it was tuned with the boost controller off, so achieving ~15-16 psi on the wastegate spring alone, and it is noticeably quicker with the boost controller on and yielding a couple of extra pounds. Hence why I think it is doing OK. So, no, I would not arbitrarily say that return flows are restrictive. Yes, they are certainly restrictive if you're aiming for higher power levels. But I also think that the happy place for a street car is <300 rwkW anyway, so I'm not going to be aiming for power levels that would require me to change the inlet pipework. My car looks very stock, even though everything is different. The turbo and inlet pipes all look stock and run in the stock locations, The airbox looks stock (apart from the inlet being opened up). The turbo looks stock, because it's in the stock location, is the stock housings and can't really be seen anyway. It makes enough power to be good to drive, but won't raise eyebrows if I ever f**k up enough for the cops to lift the bonnet.
×
×
  • Create New...