RB25 det neo - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

gerhardcsch · 11-25-2018, 07:22 AM

Good day Gents

Im new to the group.
Hopefully one can assist...
I have a 200sx s13 rb25 det neo.(import motor) with the standard gearbox. Build a six pack button clutch. New pressure plate. New release bearing(trhough out bearing). When i engauge the clutch and I leave it to get some "Load" it gives me a horrible winning screaching noise. Can is be that the pilot bushing in the crank is different between the manual and auto boxes. Think my import engine was a auto. And is now running manual.

Thanx in advance

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gaz_moose · 11-25-2018, 12:47 PM

the auto pilot bush (or spigot bearing as some people call it) is different to manual ones.
you need to fit a manual one.

sounds like your gearbox input shaft is wobbling around in the back of the crank shaft.

you can just use a CA180/VG30 or an Sr20 spigot bearing.

gerhardcsch · 11-25-2018, 02:09 PM

Quote:

Originally Posted by gaz_moose

the auto pilot bush (or spigot bearing as some people call it) is different to manual ones.
you need to fit a manual one.

sounds like your gearbox input shaft is wobbling around in the back of the crank shaft.

you can just use a CA180/VG30 or an Sr20 spigot bearing.

Thanx buddy. Can that make when im changing gears fast to not engauge as well???

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gaz_moose · 11-26-2018, 01:54 PM

not really.
grinding gears is usually down to worn synchromesh.
my rb25 box wont shift into gear above 6000RPM so I just have to change gear a bit slowly.
its old car technology so you have to just take your time with it.

11-25-2018, 07:22 AM	#1
gerhardcsch Join Date: Nov 2018 Location: ZA Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	RB25 det neo Good day Gents Im new to the group. Hopefully one can assist... I have a 200sx s13 rb25 det neo.(import motor) with the standard gearbox. Build a six pack button clutch. New pressure plate. New release bearing(trhough out bearing). When i engauge the clutch and I leave it to get some "Load" it gives me a horrible winning screaching noise. Can is be that the pilot bushing in the crank is different between the manual and auto boxes. Think my import engine was a auto. And is now running manual. Thanx in advance Sent from my SM-N960F using Tapatalk

11-25-2018, 12:47 PM	#2
gaz_moose Zilvia Member Join Date: Mar 2008 Location: engerland Posts: 242 Trader Rating: (0) Feedback Score: 0 reviews	the auto pilot bush (or spigot bearing as some people call it) is different to manual ones. you need to fit a manual one. sounds like your gearbox input shaft is wobbling around in the back of the crank shaft. you can just use a CA180/VG30 or an Sr20 spigot bearing.

11-26-2018, 01:54 PM	#4
gaz_moose Zilvia Member Join Date: Mar 2008 Location: engerland Posts: 242 Trader Rating: (0) Feedback Score: 0 reviews	not really. grinding gears is usually down to worn synchromesh. my rb25 box wont shift into gear above 6000RPM so I just have to change gear a bit slowly. its old car technology so you have to just take your time with it.