4G63 Engine Rocker Problem Mitsubishi Evolution Lancer

[@evolm.c.f]

Will these work for a 4g63t?

[@denstoj]

Which car and model?

[@evolm.c.f]

@@denstoj 1991 mitsubishi eclipse gsx

[@denstoj]

Sick! You'll have to upgrade your rockers from the older cast to lighter pressed metal rockers in the Evo 4-9 4G63. They are backwards compatible with the older engines. Full details on our website: denstoj.com.au/products/4g63-pivot-retainer-clips Let me know if you have other questions.

[@CamG-55]

You know if the valvetrain geometry is actually setup correctly you don't have any issue with rockers popping off. Mainly with valve stem heights being set correctly for lash adjuster preload and the correct valve spring being used for the rpm, boost and the camshafts.

[@denstoj]

You’re absolutely right-correct valvetrain geometry is crucial to prevent rockers from popping off. However, under real-world driving or racing conditions, even with ideal geometry, higher performance setups with increased RPM, boost, or aggressive camshafts can still benefit from additional security measures, as there is minimal downside. This is why most modern engines with a rocker arrangement, like the BMW B58 in the Supra, the Lexus 2UR-GSE in the LC500, and nearly all Audis, run a clip. Curious to hear your thoughts further. Neat Evo III!

[@a.b3367]

The price is a little high just for clips, don't you think?

[@denstoj]

Hey @a.b3367, thanks for your feedback. We understand that at first glance, the clips might seem expensive. When compared to the potential costs of a rocker dropping and destroying your engine, they're well worth the investment for peace of mind when revving. We've designed our clips specifically for the 4G63 from high carbon steel and they're also heat treated to withstand the temps within the valvetrain. Let us know if you have any other questions. I'm curious if you have an Evo?

[@TimCurry04]

$350!

[@denstoj]

What currency are you viewing? They’re $239 AUD

[@curtleyparris58]

Where can I get some

[@denstoj]

Hey Curtley Parris, you can order directly from our website (link below). Let me know if you have any other questions. 👍 denstoj.com.au/products/4g63-pivot-retainer-clips

[@christopherorpilla6260]

Where can we buy some?

[@denstoj]

Hey, Chris. From our website (link below). Feel free to order whenever you’re ready and I’ll keep an eye out for it and ship as soon as we can. denstoj.com.au/products/4g63-pivot-retainer-clips

[@lyordson2K]

Do I need this? I'm running a very mild setup, stock turbo, 260 poncams, and i don't rev past 7k rpm.

[@denstoj]

Hey @lyordson2K are you planning any other mods or valvetrain work?

[@lyordson2K]

@@denstoj Nope. I'm not planning to further mod. Keeping it stockish to mild.

[@denstoj]

@@lyordson2K Ok, cool. Depends on how you drive it, where eg. Street, circuit, drag and how much reliability you're looking for. On the 4G63 I wouldn't say it is high risk but fundamentally it is a floating rocker so any instance of valve float and the rocker can fall out. It's a relatively cheap mod and easy enough to do for peace of mind but I could be biased ;) For more information we've done a write up on the G16E-GTS in the GR Yaris which is a similar valve train setup with hydraulic lash adjusters: www.reddit.com/r/GRCorolla/comments/11kwfrq/if_youre_looking_for_peace_of_mind_when_revving/

[@lyordson2K]

@@denstoj thank u very much for the input!

[@denstoj]

@@lyordson2K no problem at all. Let me know if you have any other questions.

[@cengizkhan6567]

Will it fit a evo 1 cd9a

[@denstoj]

Hey Cengiz, thanks for the question. You would have to upgrade to the pressed metal rocker arms instead of the cast ones. Full details are on our product page denstoj.com.au/products/4g63-pivot-retainer-clips let us know if you have any other questions.

[@chris1995gst]

Will that make the lifter or rocker arm have a light tick always because of the clips??

[@denstoj]

Good question. When correctly installed, our rocker retainer clips do not cause any additional wear or noise in the rockers or valvetrain. The clips are designed to be non-intrusive under normal operating conditions, engaging only when the rocker loses pressure from the valve spring. This is achieved by the existing groove in the hydraulic lash adjuster where the clip attaches. It is narrower in the middle where the clip and rocker normally operate and wider at the top, so the rocker is "caught" by the clip if it tries to fly off. This solution is similar to the system used in the B58 BMW engine found in the GR Supra, which does not exhibit any ticking noise despite being a high-performance and expensive engine (see video clip below). Our clips do not affect the regular functioning of the valvetrain and will have a lifespan equivalent to the other valvetrain components. Did you have any other questions? kzbin.infoUgkxuOoS4rvnUSjs-JlaFsIuwjUv-lLUeEen?si=NcihwGaRVDiaxEdB

[@AWD_T]

Do you sell these?

[@denstoj]

Sure do! denstoj.com.au/collections/parts/products/4g63-pivot-retainer-clips

[@djcrossfad3g812]

Where can I buy them clips

[@denstoj]

Hi DJCrossfade, you can order from our website: denstoj.com.au/products/4g63-pivot-retainer-clips

[@christiangonzalez2862]

If enough of rocker arms come off, can this cause the engine to have trouble starting?

[@denstoj]

Hey Christian, it’s all dependent on how and which rockers fall off. You could get lucky with only one rocker falling off and safely lodging itself in the tappet cover without doing any damage to the rest of the valvetrain and you’ll only experience a miss fire and loss of power. Worst case a rocker falls off and gets shot out of the tappet cover causing major damage. How is your Evo? Any odd noises from the engine or loss of power?

[@TIMTIM-xm5pr]

@@denstoj aftyer 9.000 rpm to much noise after 3.000 rpm and i cant go more than 3.000 rpm until 3.000 rpm is okey

[@denstoj]

@@TIMTIM-xm5pr do you have a video?

[@Munyasonic2]

@@denstojhi i have a video of mine doing a loud tapping noise. the mechanic says it could be a loose rocker or a lifter problem

[@denstoj]

His diagnosis sounds right based on the information but would need to pull apart to confirm

[@andrearisaputra1511]

Hallo.. what car rocker arm clip are you using? Can i get the part number?

[@denstoj]

Hi Andre, we manufacture the rocker arm clip.

[@kathlynlazaro2956]

How to order rocker arm clip??

[@denstoj]

@kathlynlazaro2956 Hey, you can order on our website denstoj.com.au/products/4g63-pivot-retainer-clips

[@denstoj]

Let us know if you have any questions.

[@lucianocl1947]

I means gsc lifter ok?

[@denstoj]

Hey Luciano, yes our rocker retainer clips will work with the GSC Zero-Tick lifters as long as there is no change to the diameter where the clip attaches. Our understanding is that the GSC lifters only have a stiffer spring inside to help keep the lifter at its operating height for situations when oil pressure is low. There is no change to the outside dimensions compared to the OEM lifter. Of course, the only way to be certain is to compare the radius on the OEM lifter and the GSC when installing. This is what we recommend.

[@totallyi812]

Omg i need that

[@denstoj]

Made them just for you. 👌 Feel free to order a set on our website: denstoj.com.au/products/4g63-pivot-retainer-clips

[@jasondelacruz4486]

The same design with FA20 Subaru engines

[@denstoj]

Yes, both engines don’t have a rocker retainer. Exactly why we make a kit for the FA20 too.

[@ericdunn3276]

I pulled my valve cover and one of my rocker arms was completely. No damage thankfully

[@denstoj]

Hey @Vehicle Post, I think you meant to keep writing “completely dislodged”? 🤔 Regardless, good to hear no damage. 👍

[@ericdunn3276]

@@denstoj completely off* yeah lol

[@denstoj]

@Vehicle Post that makes sense now. Did you hear it dislodge and stop driving it straight away?

[@horacecunningham7832]

Had one fall off on a customer car and he had it driving for months before it was noticed. We knew it fell off a while back because we kept seeing roller bearings while doing oil changes but couldn't figure out where they were coming from

[@denstoj]

@Horace Cunningham lucky the rocker landed in a safe spot in the head. It must not have done any damage to the valve, spring or anything when falling off. Might have just been a little underpowered. Have you had a chance to replace it yet?

[@rashidnaga]

lifter around Mitsubishi 4g63 problem same lifter rocker arm.its it.

[@denstoj]

Yes, this is the 4G63 rocker arm

[@rashidnaga]

@@denstoj bad oil pump.

[@valiantJager4502B]

theres no way that liitle clip is going to last in a running motor... especially at high rpms, all the best

[@denstoj]

Could you share more about your concerns?

[@valiantJager4502B]

@@denstoj my concerns are that the clips seem to clip on very easily and i wonder if they can slip off easily at high rpms? if the rockers can pop out of place at high rpms what's stopping that happening to the clips? i have an evo 6 and am looking to upgrade the valve train specifically to rev higher (Safely) so am intrigued by your product

[@denstoj]

I totally get your concerns. Sure, while these clips might not counter severe valve float, they serve as an added layer of security. They've been successfully used in high-stress environments, including world-time attack winning Evos and drag cars that push over 1,000+ hp at up to 10,000 rpm. They pair nicely with upgraded springs when pushing higher RPMs and of course, we wouldn't build a 4G63 without them. Let me know if you have any other questions.

[@valiantJager4502B]

@@denstoj that sounds awesome! Is there any videos anywhere I could check out please?

[@denstoj]

We're working on a video. For now there are a couple of Facebook posts to check out: facebook.com/share/da3qR9tW9kz9rgpY/ facebook.com/share/bVRZJEuvG8bnwnU7/