Jump to content
SAU Community

Recommended Posts

Hey all, I have a question for any of you RB26 addiicts.... I need to find a place that sells/ makes a repair part for a RB26 head that has the valve spring bucket (lifter) pocket damaged.

The head was modified by some dumba$$ (Me) for a larger lift cam, and in the process, the area that seals the oil preasure was cut into a little bit. Now, the bucket will not totally seal the oil preasure as required.

I'm sure on the RB26 head, there is times when this wears beyond spec, and must be renewed, so who/ how does this get renewed?

I've thought of boreing out the lifter pocket, and installing a sleeve into the pocket to bring the clearnce back to spec, but can't find such item for sale.

I swear I saw a post on this exact repair somewhere before, but can't find anything now.

Does anyone have any known fixs for valve lifter pocket repair?? Anyone know who sells a repair sleeve for this ??

Please advise....

thank you

joel

Link to comment
https://www.sau.com.au/forums/topic/57192-rb26-head-repair/
Share on other sites

You probably could make a sleeve to fit but it would have to be awful thin as you will be boring into the cam tunnel when you bore out the head to fit it. I've done Jaguar 6cyl heads before but its a premade steel sleeve for them and theres plenty of room.

It might be worth getting it welded up to start with and if it distorts too far then try to sleeve it. If it welded ok most cylinder head shops would be able to bore it back round again.

Then again, it might be easier to start with another head if you weigh up the costs of fixing it vs the long term result.

The best way to machine for cam clearance that I've found it to use a 20-21mm slot drill in a milling machine set to the same angle as the original recesses to clear the cam lobes. It takes a couple of hours but comes out spot on. Once you set the depth you cant go too far and every one is exactly the same.

Link to comment
https://www.sau.com.au/forums/topic/57192-rb26-head-repair/#findComment-1105340
Share on other sites

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


  • Similar Content

  • Latest Posts

    • Your chihuahuas look weird!
    • Call me the "Crazy Cat Man"...., maybe that should be my new forum name....LOL....., but seriously.....someone change it please, thanks Just grabbed the two black Oriental kittens that I ordered a few months ago to guard the house, I am assuming that because they are Orientals they know KungFu, Karate, or are Ninjas, or some other lethal fighting skill, even at only 3 months old they already have Parkour down pat Introducing...Bella & Donna
    • Hi GTSBoy, Excuse my ignorance but what does a "Bad" Knee point mean ? 
    • HFM BM57 has a "bad" knee point, IIRC. It's not the same thing as the later R chassis MC.
    • The ATTESSA is functionally identical to R34; there were a bunch of JDM models that continued ATTESSA including Fuga/Q70, Skyline/Q50, Cima etc as an option. All with Auto only and I think mostly for snow regions. AFAIK there were no AWD VR30DDTT sold in Australia - it is on my to do list to check regs for racing a LHD car in Targa/ATR/AASA/CAMS events because if I can get the auto to work it would be interesting to run a 4wd car The Ecuteck TCM tuning is the same model as their ECU tuning, they already have it for R35 and Dose's favourite, BMW. You buy "points" to allow your computer to be tuned, buy either a bluetooth (phone app) or bluetooth+USB+Key (phone and PC) dongle, and pay for a tune that will be locked to your tuner ( ). You can also access the tuning software yourself but 1. it is mega expensive and 2. these computers have a billion parameters that intersect, so how could you ever spend enough time on it to get a decent result.
×
×
  • Create New...