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Dip Stick Pops Out. Bleeding Crank Case Air.

RB30 Ceffy

By RB30 Ceffy,
in Engines & Forced Induction

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RB30 Ceffy Enthusiast

RB30 Ceffy

Posted
Posted

put a R33 RB26 in my dad's GTR a while ago. I haven’t driven it much but just finishing up a tune up and suspension bits that were warn out and noticed the dip stick is being forced out. I can hear it when I turn the car off, the air bleeds out. Now I got a compression test on the engine when it was still in Japan and it was awesome so I figured it was broken rings/ring lands so I did a leak down test and everything came out perfect. Any ideas? Thanks in advance!

TokyoTaxi Veteran

TokyoTaxi

Posted
Posted
put a R33 RB26 in my dad's GTR a while ago. I haven’t driven it much but just finishing up a tune up and suspension bits that were warn out and noticed the dip stick is being forced out. I can hear it when I turn the car off, the air bleeds out. Now I got a compression test on the engine when it was still in Japan and it was awesome so I figured it was broken rings/ring lands so I did a leak down test and everything came out perfect. Any ideas? Thanks in advance!

Make sure your crank case venting is clean / clear ( vents are on cam covers ). If you have a catch can, be sure that the lines and fittings are not restrictive so as to cause excessive crank case pressure.

Might not be the answer but it's one thing to look at.

VSPEC-33 Community Regular

VSPEC-33

Posted
Posted

It could just be a worn out o-ring on the oil dipstick. I had this happen occasionally, bought a new dipstick from Nissan and no probs.

Forced induction cars will have more positive crankcase pressure and it will try and find the easiest way out, like out the dipstick if it has a weak seal

  • 3 weeks later...
R.3.2.G.T.R Grand Master

R.3.2.G.T.R

Posted
Posted
Check you PCV hose.....Mine had a piece of Dowel stuck in it to block it off?!?!?! had all sorts of blow-by probs....fixed that and now its fine.

which pcv hose should i be checked for stuck dowel? same as dipstick?

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