Jump to content
SAU Community

Recommended Posts

Hey just a quick question in regards to joke seals, well this is my 2nd one ive gone through in a few months gearbox is in good condition an using redline lightweight shockproof oil.Is this a regular issue with these boxes? could it be a pressure build up running high boost,ive got an inline filter for gbox oil so could this be a problem?thanks

Link to comment
https://www.sau.com.au/forums/topic/270244-rb20-5sp/
Share on other sites

Hey just a quick question in regards to joke seals, well this is my 2nd one ive gone through in a few months gearbox is in good condition an using redline lightweight shockproof oil.Is this a regular issue with these boxes? could it be a pressure build up running high boost,ive got an inline filter for gbox oil so could this be a problem?thanks

I'm curious to know how the in-line filter works given there's no pump in these gb's. Depending on how this works it might be a factor. Engine boost should not pressurise the gearbox (in a stock gearbox setup)

You may have a blocked gearbox vent, which is roughly in the middle of the extension housing, at the top.

Link to comment
https://www.sau.com.au/forums/topic/270244-rb20-5sp/#findComment-4597772
Share on other sites

I'm curious to know how the in-line filter works given there's no pump in these gb's. Depending on how this works it might be a factor. Engine boost should not pressurise the gearbox (in a stock gearbox setup)

You may have a blocked gearbox vent, which is roughly in the middle of the extension housing, at the top.

Yes i was thinking the same with the filter there, i will remove it an check the vent. thanks man

Link to comment
https://www.sau.com.au/forums/topic/270244-rb20-5sp/#findComment-4597953
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

    • Is it alright to top up with just another green coolant?
    • thanks GTSboy. My confusion at the moment is i am trying to locate the ignition, ECU battery power and the ECU negative The closest thing i can find is the for the S15 on Page 8 of the Wiring Specialties web page https://drive.google.com/file/d/0B9F33_M_GgENQnZ6STMxVmVNd1E/view?resourcekey=0-eZ4nNRwRoqa1qvKlWWHm8A I cannot find the same diagram for the R33 RB25DET Series 2 dash plug pin out.... Do you know what the Pins? or know where i can find the same pinout diagram for the RB dash plug? Thanks for the advice on the box... i like a 6 speed so might be on the lookout or the box now.. a topic of discussion for another post...
    • Will have a look at that. I cant see any leaks 
    • Put another overflow bottle (ie, a 1.25 coke bottle or similar) under the overflow hose and see if it is being pushed out there or if it is disappearing into the engine.
    • Staring on a stand is no issue. You just have to wire everything up, give it fuel and cross your fingers that the stand is robust enough. Arranging the inlet plumbing is often the hardest part, without any surrounding structure to hand some of it from. No need for coolant if you only want to run it for <1 minute. As to the gearbox - I think the little Aisin box is a bit stronger than the other small Nissan boxes that went behind SRs, but I wouldn't be too keen to test its limits with the torque of a boosted 25. I don't know if you can retain the box and the tailshaft. The box won't connect to the RB without an adapter of some sort, which is either a plate that will push the engine forward (which is not good for fitting it into the bay's available space) or push the box back, which messes with the box position and tailshaft length - OR - cut and shut work on the bellhousing, which is a long way from "least modification". I'd be buying a new 370Z 6 speed or similar, doing what has to be done to that to make it fit RB (ie, cut and shut bellhousing) and the requisite tailshaft custom/mods.
×
×
  • Create New...