Input Shaft Photo - 3000GT/Stealth International Message Center

Swandvr · 08-11-2008, 04:02 PM

Can someone tell me what has happened with this input shaft and why? I think the res is high enough to see what I'm talking about.

[ATTACH]Input Shaft[/ATTACH]

Dakken · 08-12-2008, 09:22 AM

It looks like the gears are a little worn. I'll bet your drain plug was just full of metal bits and there may have been silver fluid in your oil when you drained it.

This is just a guess but I would bet your bearing preload is too loose on the intermediate shaft. An easy way to check it is to remove everything out of the transmission, put just the intermediate shaft in the case and tighten down all of the bolts. Then go in through the hole where the gear select lever goes in and spin the shaft with a screw driver. It should have some resistance and should stop quickly after you stop pushing it.

If it spins freely, there is not enough preload on the bearings. What happens in that case is that when the transmission heats up, there will be even more play in shaft. It will move slightly sideways away from the input shaft so the gears will not make a good contact and it will eat up the gears.

93stealthman · 08-31-2008, 10:57 PM

if your talking about the teeth on the input shaft, they are just cut in a scalloped fashion

JackM · 09-02-2008, 02:04 PM

Yeah, looks good to me too...

Jack

Swandvr · 09-11-2008, 11:21 AM

Quote:

Originally Posted by JackM

Yeah, looks good to me too...

Jack

JackM; What does "yeah looks good" mean??? Do you think I have to replace the IP shaft? Could I just replace the bearings... if so do I have to pull the Txfr case?
Swan

Phattlard · 09-18-2008, 08:17 AM

I don't know about you guys, but the "twins" in your picture are smoking hot...... please tell me you know them....

VR3.9 · 09-18-2008, 08:25 AM

The gear on my input shaft looks like this too. very worn and "scalloped" I would like to know if that means I should replace the shaft as well. Doesn't look like that gear is replacable.

mynamiseli · 09-18-2008, 12:59 PM

That's totally normal, it was made that way. No problems there.

Toni · 09-18-2008, 02:37 PM

yup all good

Here is a close up.

Swandvr · 10-02-2008, 03:52 PM

Thanks to all for input on the "Input Shaft".

I thought I had a huge problem.

Swan

08-12-2008, 09:22 AM	#2 (permalink)
Dakken Dont Make Me Lose My Mind Join Date: Aug 2002 Location: Sacramento CA Drives: 92 Stealth RT TT Trader Rating: (4)	Re: Input Shaft Photo It looks like the gears are a little worn. I'll bet your drain plug was just full of metal bits and there may have been silver fluid in your oil when you drained it. This is just a guess but I would bet your bearing preload is too loose on the intermediate shaft. An easy way to check it is to remove everything out of the transmission, put just the intermediate shaft in the case and tighten down all of the bolts. Then go in through the hole where the gear select lever goes in and spin the shaft with a screw driver. It should have some resistance and should stop quickly after you stop pushing it. If it spins freely, there is not enough preload on the bearings. What happens in that case is that when the transmission heats up, there will be even more play in shaft. It will move slightly sideways away from the input shaft so the gears will not make a good contact and it will eat up the gears. __________________

08-31-2008, 10:57 PM	#3 (permalink)
93stealthman Forum Member Join Date: Jan 2004 Drives: 93stealth-91vr4 Trader Rating: (2)	Re: Input Shaft Photo if your talking about the teeth on the input shaft, they are just cut in a scalloped fashion

09-02-2008, 02:04 PM	#4 (permalink)
JackM jackstransmissions.com Join Date: Jun 2003 Trader Rating: (1)	Re: Input Shaft Photo Yeah, looks good to me too... Jack __________________ www.jackstransmissions.com EVO VIII, DSM, 3S tranny rebuilding.

09-18-2008, 08:17 AM	#6 (permalink)
Phattlard Wrench Pimp Join Date: Nov 2005 Location: NY Drives: 93 Base, 91 VR4 Trader Rating: (4)	Re: Input Shaft Photo I don't know about you guys, but the "twins" in your picture are smoking hot...... please tell me you know them.... __________________

09-18-2008, 08:25 AM	#7 (permalink)
VR3.9 Forum Member Join Date: Sep 2007 Location: Allen, TX Drives: 93 VR4 & 91 VR4 Trader Rating: (8)	Re: Input Shaft Photo The gear on my input shaft looks like this too. very worn and "scalloped" I would like to know if that means I should replace the shaft as well. Doesn't look like that gear is replacable. __________________ FIPK, Megan Racing DP, Gutted Pre Cats, MBC, Walbro Fuel pump, Ground Controls, Unortodox Racing Flywheel, Slotted and Vented Rotors. Maximal Rear adjustable upper control arms. Poly Mounts Under the Knife for: JDM motor with 25k. 13T's, 550CC injectors, SAFCII. Rebuilt 5 speed 25spline tranny.

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09-18-2008, 12:59 PM	#8 (permalink)
mynamiseli My name is.. Eli Join Date: Feb 2005 Location: Conway, Arkansas Drives: 92 TT 2K Mustang GT Trader Rating: (11)	Re: Input Shaft Photo That's totally normal, it was made that way. No problems there. __________________

10-02-2008, 03:52 PM	#10 (permalink)
Swandvr Twins4Twins Join Date: Apr 2007 Location: Land of Ice & Snow Drives: 92 VR4 Trader Rating: (0)	Re: Input Shaft Photo Thanks to all for input on the "Input Shaft". I thought I had a huge problem. Swan