Jump to content
SAU Community

Building An Rb3det... Rb30 Block Needs A Clean

rich81

By rich81,
in Queensland

 Share

Recommended Posts

rich81 Explorer

rich81

Posted
Posted

Hi guys,

Picked up an RB30 block and crank on the weekend (cheers pnk32). Block has water and oil lines already tapped - awesome . :D

Now, I think the bore is 87mm (I didn't have a ruler handy, but the play between piston & bore was greater than in the RB25 block). I'll measure it properly today to be sure... BUT the cylinder wall has rust spots etc, they don't look deep or anything but it'll definitely need a cleanup.

Anyone know a good place in BNE to get block (and possibly head as well) cleaned up? It would be great if said place will do bore machining/honing and possibly even re-sleeving if necessary.

If the bore can be machined to clean up the rust etc... how MUCH can be machined off the surface without going too far past the 87mm mark? Is it just a matter of getting piston ring gaps right when doing the build? Or am I better off punching the sleeves out and getting them re-done (can you even do that on an RB30?) If I do get it resleeved, can I go even bigger bore than 87mm (and still find pistons to suit)?

Sorry if I've repeated any questions that have already been asked.

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

    • MBS206
      Slight brake pedal stutter after new pads

      By MBS206 · Posted

      Jack the back of the car up, pull that wheel off, pull that sensor out, and put a bore scope into the hole to inspect the outer casing, see if anything looks damaged before you pull the whole thing apart.
    • PranK
      Slight brake pedal stutter after new pads

      By PranK · Posted

      Ergh... So I pulled the speed sensor out again and the tip was shiny so I think it's rubbing the bearing. The bearing contains the magnets for the speed sensor so I think when the first sensor broke it damaged the magnet ring on the bearing.  This is just a Google image, but there is a hole going to the bearing. So when the tip broke off the old sensor I'm guessing it fouled the bearing... As the magnet is only protected by a plastic cover it would be easy to damage it. So I guess I'm doing a bearing again.   
    • GTSBoy
      Unknown sound similar to BOV on positive boost with partial throttle RB26

      By GTSBoy · Posted

      My thinking is that if the O2 sensor is shot then your entire above described experience is pure placebo.
    • silviaz
      Steps to DIY sanding car back ready for respray....

      By silviaz · Posted

      Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • silviaz
      Steps to DIY sanding car back ready for respray....

      By silviaz · Posted

      Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
×
×
  • Create New...