Spigot Bearing/thrust Bearing = Same Thing Or Not?

[CruiseLiner]

hey jaik how easy is it to replace the input shaft bearing? did u do it yourself? and how much are they new?

i assume its under the cover plate just inside the bellhousing or do u need to pull the box apart fully to get to it?

[Cubes]

A quick heads up.

All the RB spiggots are the same, rb20/25/26 and rb30.

They can be picked up aftermarket for a couple of $$.

Running a gearbox without one most definitely damages the input shaft bearing. It only takes a hundred km's or so of driving and its gearbox rebuild time.

[jaik]

Hey, the names Jai K is my surname Anywho...

Id never taken my box apart before, but by the way it was behaving it was definately input shaft bearing. Of course I dreaded the cost to fix, but I figured I had nothing to loose by taking it apart as if it was totally fked another box is only $500 away but I also pick up the experience of box repair for free

Check my thread - http://www.skylinesaustralia.com/forums/in...howtopic=124037

I replaced the bearing thats actually on the inside of the shaft. The one that sits in the casing on the shaft was in ok nick, but the bearing shop said I may aswell replace it since it was out. The small internal bearing cost $19 and the bigger one from the casing was $25. I got them from BSC on King Edward St in Osb Park (no 54 i think their shop is).

My internal bearing has bulk play, and would have been enhanced by the clapped out spigot. The dimensions of this bearing was 26mm outside, 20mm inside, 20mm long. My factory bearing was 26mm outside, 22mm inside and 19mm long. The shaft dimentions are infact 26mm outside, 20 mm inside and 22mm long - so the other bearing allow alot of free play left to right - not good!

JK

[BHDave]

The needle roller bearing also needs an oil seal or it will run dry after a while.

My s4 rx7 spat one shortly after an engine swap by a workshop that shall remain nameless. When it disintergrated the needles went all through the clutch preventing it disengaging properly and scoring the pressure plate and flywheel and shreding the friction plate (I also found an 8inch friction plate was in there instead of an 8.5).

On removal i found that there was no seal installed despite one being pretty clearly specified in the workshop manual.

[Keeper]

  BHDave said:

The needle roller bearing also needs an oil seal or it will run dry after a while.

My s4 rx7 spat one shortly after an engine swap by a workshop that shall remain nameless. When it disintergrated the needles went all through the clutch preventing it disengaging properly and scoring the pressure plate and flywheel and shreding the friction plate (I also found an 8inch friction plate was in there instead of an 8.5).

On removal i found that there was no seal installed despite one being pretty clearly specified in the workshop manual.

Gay, even on the RB26?

[MrStabby]

Nice resurrection...

Needle roller for spigot = FAIL, literally. (Second hand info from a mechanic who has seen multiple failures on RBs. Dont know if the failure was due to running dry or inability to handle the load or some other reason). Use a conventional bush bearing like Nissan chose. IIRC they're sintered, so you need to fill them with grease.

[Jet 20]

nissan wouldn't use the bush type bearing if it was no good.

the spigot bearing is not only there to hold the input shaft straight, it has to also support the weight of the clutch friction plates when the clutch is engaged. It also keeps the plates centred in the clutch.