Jump to content
SAU Community

Recommended Posts

Hi i have an rb30 i purchased a while back it was rebuilt by a shop several years ago and sat around ever since. I just was looking in the bores today and noticed cylinder 2 had a scratch i can feel a bit with my finger nail the rest of the bores are fine its just this scratch. I was hoping to make 330hp on this motor. Looking for advice on what to do i really do not want to forge it as its very expensive i wanted to know if anyone has encourantered something similar thanks.

20210923_202717.jpg

Link to comment
https://www.sau.com.au/forums/topic/482847-one-bore-scratch-bore-out-necessary/
Share on other sites

  • 3 weeks later...

Found out a little more about it the machine shop did all the work but did not assemble it. I had an engine rebuilder take a look at it he said it looked like something had got in the bore while it was assembled. Told me it was better off running the motor it would just burn a little oil and might smoke some more on boost cheers.

Well that is an option for sure.

Ine cylinder burning some oil will mean it is more likely to detonate, and considering that is damage you can see I would be cautious of what you can't see. Oil galleries full of junk,  bearing clearances wrong etc. Keeping the bores clean is one of the easiest parts of building an engine.

On 10/13/2021 at 2:19 PM, G2trop said:

Found out a little more about it the machine shop did all the work but did not assemble it. I had an engine rebuilder take a look at it he said it looked like something had got in the bore while it was assembled. Told me it was better off running the motor it would just burn a little oil and might smoke some more on boost cheers.

It's your time and money, personally if I pull an engine I'm going to build it like it's never getting pulled again.

  • Like 1

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

    • It's actually really good advice. And I do try to do it. I actually have 2x 3KG dumbbells that sit right beside where I sit. And I look at them a lot. Use them a little. But I'm trying to do more with it. At the moment I'm going through a heap of weight loss too which will help. I cracked into the 85kg mark this week. My weight used to have me sit consistently between 93 to 95KG! That definitely doesn't help. I've also got POTS, which flared up after I got slapped with COVID a few weeks back, and POTS really smashes fatigue and stuff into you, and has a thing even called "excercise fatigue". Basically even the minorest "excercise" (walking from the garage to the house) causes fatigue! And one of the treatments (Other than a med I'm on) is also... Excercise... Ha ha ha So it's why I'm trying to play the game of "might as well" and trying to push through things. For ADHD specifically, the general recommendation is "excercise". When you dig deep into it though, while any excercise is good, the best type is "explosive" excercise. So training for a sport like squash, tennis, even soccer. Things where you need to get the whole body able to "explode" into a different direction change. They've found with explosive sports, (I can't think of the proper term they have for it) that it actually makes the brain grow and become bigger in specific areas. The areas where ADHD causes those parts of the brain to be smaller than normal! But definitely, trying to push myself, and break those bounds mate, and get healthier!
    • Be more active mate.. , not taking the piss 鉂わ笍, your long term health will love you for it I would think something like a kettle bell or 2 laying around in areas you go past during the day would be awesome for ADHD.... "Oh look, a kettlebell", and exercise helps your brain health as well My mates son was a bit of a problem child, diagnosed wirh ADHD, and some other things that had his brain occasionally doing loops, until we got him into a training program, the difference after he started training was amazing, he had more focus, and his fitness levels exploded, it is like he is a totally different kid to be around Brain chemistry something something Stay fit stay strong mate
    • I had never actually looked into it, but aren't onboard compressors a thing in trucks?
    • Read the ECU for fault codes or have someone else do it. A faulty coolant temperature sender is usually listed in ECUs. If the sensor itself is not busted it can also be a bad ground connection. Or in a really unlucky case, damaged wiring.
    • Can't be a Futjitsubo as those are made with a flex piece and Reimax is smaller in pipe diameter. If anything it is closest to a Mines pipe, but evidently it is not an actual Mines pipe.   Classic word humor
  • Create New...