Removing SR transmission from the bell housing? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Dee · 01-15-2010, 12:29 AM

My tranny finally gave up the ghost tonight on my way to work. It was stuck in 5th gear making grinding noises then the car stopped moving(reving freely) and the shifter wouldn't bulge at all so after struggling a bit with it I finally got out of 5th but will only engage in 1st and 2nd can't get the shifter to go into any of the other gears.

Anyway I digress, my question is -- Is it easier to remove the transmission from the bell housing and then just swap the new one on the old bell housing or should I just remove the whole thing intact?

Thanks Zilvia
-Dee

DataXUnknown · 01-15-2010, 12:36 AM

I would remove the whole thing because you never know, you could have broken a flywheel bolt or something. and it's much easier to swap the bellhousing when it's out of the car hahah

Dee · 01-15-2010, 12:51 AM

You have a point, I'll just do it the right way. I just hate screwing around with those two top bell housing bolts their a pain in the ass to get to even with extensions.

240sxcure · 01-15-2010, 07:48 AM

Much easier to remove the transmission intact as one unit.

To separate it from the bell housing I believe you have to remove bolts, and a snap ring from the inside front cover anyhow.

P.S. My dad plays that jamaican song in your sig nearly every xmas

Sileighty_85 · 01-15-2010, 09:42 AM

Quote:

Originally Posted by 240sxcure

Much easier to remove the transmission intact as one unit.

To separate it from the bell housing I believe you have to remove bolts, and a snap ring from the inside front cover anyhow.

Correct you have to remove the whole tranny in order to break it apart

and yes there is a snap ring under the front input shaft cover

the RTV will be tough to break away, just dont forget to seal it with RTV when you put it back together, Ive found the Permatex "Blue RTV" works real good

jspaeth · 01-15-2010, 10:08 AM

Ratcheting wrenches help so much with the tranny bolts, but they are $$$

Dee · 01-15-2010, 02:23 PM

Quote:

Originally Posted by Sileighty_85

Correct you have to remove the whole tranny in order to break it apart

and yes there is a snap ring under the front input shaft cover

the RTV will be tough to break away, just dont forget to seal it with RTV when you put it back together, Ive found the Permatex "Blue RTV" works real good

Thanks I'll pick up some before re-installation.

Quote:

Originally Posted by jspaeth

Ratcheting wrenches help so much with the tranny bolts, but they are $$$

I didn't run into any problems until I got to the top two those are effing impossible, I've dropped the tranny down some by unbolting the trans-mount but I still can't get enough leverage on those suckers.

DataXUnknown · 01-15-2010, 03:31 PM

I've found it easier when you have another person helping you with this. Get a couple different extensions to make it at a comfortable length to where you can reach the bolts, have a swivel on the socket so you can grab it on at weird angles. Have your buddy feel the bolt, then put the socket over the bolt and you start cranking away.

That is how I remember doing it

240sxcure · 01-15-2010, 03:32 PM

You can also use the Permatex Grey RTV. It's rated for high torque applications and Nissan recommends it.

Dee · 01-15-2010, 04:18 PM

Quote:

Originally Posted by DataXUnknown

I've found it easier when you have another person helping you with this. Get a couple different extensions to make it at a comfortable length to where you can reach the bolts, have a swivel on the socket so you can grab it on at weird angles. Have your buddy feel the bolt, then put the socket over the bolt and you start cranking away.

That is how I remember doing it

Nevermind I finally got it, I forgot I bought a whole set of ratcheting wrenches couple of months ago -- used those for the two top bolts and it came right out. I can't say I'm looking forward to putting it back in though I'm 5'6" and about 135lbs and fucking thing weights half as much as me.

Now it's just a matter of deciding if I want to use a KA tranny with SR bellhousing or just find another used sr tranny.

jr_ss · 01-17-2010, 08:19 AM

Quote:

Originally Posted by Dee

Nevermind I finally got it, I forgot I bought a whole set of ratcheting wrenches couple of months ago -- used those for the two top bolts and it came right out. I can't say I'm looking forward to putting it back in though I'm 5'6" and about 135lbs and fucking thing weights half as much as me.

Now it's just a matter of deciding if I want to use a KA tranny with SR bellhousing or just find another used sr tranny.

Actually the trans weighs more than half of you, more around 3/4's. Anyways, put a block of wood under the crank pulley and jack it up some. It'll give you a better angle to slide the trans back in.

I had the same thing happen to me on my SR trans. I had to pull and I mean pull the shifter out of 5th, then I only had 1st and 2nd as well. I switched to a Z32 trans, so no more worries.

fcdrifter20 · 01-17-2010, 02:45 PM

Quote:

Originally Posted by jr_ss

Actually the trans weighs more than half of you, more around 3/4's. Anyways, put a block of wood under the crank pulley and jack it up some. It'll give you a better angle to slide the trans back in.

I had the same thing happen to me on my SR trans. I had to pull and I mean pull the shifter out of 5th, then I only had 1st and 2nd as well. I switched to a Z32 trans, so no more worries.

i hope u had a lift to get that z32 trans in. man that thing is fukin heavy and such a pain in the ass to do from the floor

Dee · 01-18-2010, 03:26 PM

Quote:

Originally Posted by jr_ss

Actually the trans weighs more than half of you, more around 3/4's. Anyways, put a block of wood under the crank pulley and jack it up some. It'll give you a better angle to slide the trans back in.

I had the same thing happen to me on my SR trans. I had to pull and I mean pull the shifter out of 5th, then I only had 1st and 2nd as well. I switched to a Z32 trans, so no more worries.

Thanks for the tip & Are the gear ratios the same in a z32 tranny? I'm surprisingly having a hard time finding any nissan tranny local to me for some reason.

nuhathann · 01-18-2010, 05:55 PM

what brand and type of ratcheting wrench did you get? im so pissed about this... my air ratchet wont budge the thing.. and the breaker bar is way too long

Big Zee · 01-19-2010, 10:17 PM

^ use more extenstions till you are past the trans and you should be able to get it with the breaker bar. specially if you can jack the car up pretty good.

the KA trans has a longer 5th gear, I suggest using a ka trans with a sr bell housing.

Base model 300zx
1st Gear Ratio: 3.21:1
2nd Gear Ratio: 1.93:1
3rd Gear Ratio: 1.30:1
4th Gear Ratio: 1.00:1
5th Gear Ratio: 0.75:1
Final Drive Ratio: 4.08:1

TT 300zx
1st gear ratio: 3.214:1 man / 2.785 auto
2nd gear ratio: 1.925:1 / 1.545 auto
3rd gear ratio: 1.302:1 / 1.00 auto
4th gear ratio: 1.000:1/ 0.694 auto
5th gear ratio: 0.752:1 / na auto

Reverse gear ratio: 3.369:1 / 2.272 auto

Final drive ratio: 3.692:1 Viscous coupled limited slip differential

Dee · 01-19-2010, 10:41 PM

^Good Info, The short 5th gear in the SR always bugged me. I picked up a KA tranny today though and swapped the bellhousing. Was a lot easier than I thought just have to wait until the rain subsides so i can get busy installing back into my car.

Big Zee · 01-19-2010, 11:01 PM

^ no worries dude, if you have tall tires on 17's 5th isn't so bad haha

if you stumble across a 300 trans grab it though, sr/ka trannies are weak

01-15-2010, 12:29 AM	#1
Dee Zilvia Addict Join Date: Sep 2004 Location: Banning, california Cool Points: -100 Φ Age: 38 Posts: 972 Trader Rating: (21) Rides Gallery: Dee Feedback Score: 21 reviews	Removing SR transmission from the bell housing? My tranny finally gave up the ghost tonight on my way to work. It was stuck in 5th gear making grinding noises then the car stopped moving(reving freely) and the shifter wouldn't bulge at all so after struggling a bit with it I finally got out of 5th but will only engage in 1st and 2nd can't get the shifter to go into any of the other gears. Anyway I digress, my question is -- Is it easier to remove the transmission from the bell housing and then just swap the new one on the old bell housing or should I just remove the whole thing intact? Thanks Zilvia -Dee __________________ '78 280Z-LSx\|76mm turbo\|1840cam\|8.8 Diff

01-15-2010, 12:51 AM	#3
Dee Zilvia Addict Join Date: Sep 2004 Location: Banning, california Cool Points: -100 Φ Age: 38 Posts: 972 Trader Rating: (21) Rides Gallery: Dee Feedback Score: 21 reviews	You have a point, I'll just do it the right way. I just hate screwing around with those two top bell housing bolts their a pain in the ass to get to even with extensions. __________________ '78 280Z-LSx\|76mm turbo\|1840cam\|8.8 Diff

01-15-2010, 10:08 AM	#6
jspaeth Nissanaholic! Join Date: Mar 2006 Location: Philadelphia suburbs Age: 37 Posts: 2,347 Trader Rating: (7) Rides Gallery: jspaeth Feedback Score: 7 reviews	Ratcheting wrenches help so much with the tranny bolts, but they are $$$ __________________ Daily driven

01-19-2010, 10:41 PM	#16
Dee Zilvia Addict Join Date: Sep 2004 Location: Banning, california Cool Points: -100 Φ Age: 38 Posts: 972 Trader Rating: (21) Rides Gallery: Dee Feedback Score: 21 reviews	^Good Info, The short 5th gear in the SR always bugged me. I picked up a KA tranny today though and swapped the bellhousing. Was a lot easier than I thought just have to wait until the rain subsides so i can get busy installing back into my car. __________________ '78 280Z-LSx\|76mm turbo\|1840cam\|8.8 Diff

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01-15-2010, 12:36 AM	#2
DataXUnknown Post Whore! Join Date: Sep 2006 Location: Mission Viejo, CA Age: 31 Posts: 2,934 Trader Rating: (30) Rides Gallery: DataXUnknown Feedback Score: 30 reviews	I would remove the whole thing because you never know, you could have broken a flywheel bolt or something. and it's much easier to swap the bellhousing when it's out of the car hahah

01-15-2010, 07:48 AM	#4
240sxcure Zilvia Member Join Date: Oct 2009 Location: NE Posts: 270 Trader Rating: (6) Feedback Score: 6 reviews	Much easier to remove the transmission intact as one unit. To separate it from the bell housing I believe you have to remove bolts, and a snap ring from the inside front cover anyhow. P.S. My dad plays that jamaican song in your sig nearly every xmas

01-15-2010, 03:31 PM	#8
DataXUnknown Post Whore! Join Date: Sep 2006 Location: Mission Viejo, CA Age: 31 Posts: 2,934 Trader Rating: (30) Rides Gallery: DataXUnknown Feedback Score: 30 reviews	I've found it easier when you have another person helping you with this. Get a couple different extensions to make it at a comfortable length to where you can reach the bolts, have a swivel on the socket so you can grab it on at weird angles. Have your buddy feel the bolt, then put the socket over the bolt and you start cranking away. That is how I remember doing it

01-15-2010, 03:32 PM	#9
240sxcure Zilvia Member Join Date: Oct 2009 Location: NE Posts: 270 Trader Rating: (6) Feedback Score: 6 reviews	You can also use the Permatex Grey RTV. It's rated for high torque applications and Nissan recommends it.

01-18-2010, 05:55 PM	#14
nuhathann Leaky Injector Join Date: Apr 2008 Location: socal Age: 30 Posts: 145 Trader Rating: (4) Feedback Score: 4 reviews	what brand and type of ratcheting wrench did you get? im so pissed about this... my air ratchet wont budge the thing.. and the breaker bar is way too long

01-19-2010, 10:17 PM	#15
Big Zee Zilvia Addict Join Date: Oct 2005 Location: BC Age: 37 Posts: 860 Trader Rating: (10) Feedback Score: 10 reviews	^ use more extenstions till you are past the trans and you should be able to get it with the breaker bar. specially if you can jack the car up pretty good. the KA trans has a longer 5th gear, I suggest using a ka trans with a sr bell housing. Base model 300zx 1st Gear Ratio: 3.21:1 2nd Gear Ratio: 1.93:1 3rd Gear Ratio: 1.30:1 4th Gear Ratio: 1.00:1 5th Gear Ratio: 0.75:1 Final Drive Ratio: 4.08:1 TT 300zx 1st gear ratio: 3.214:1 man / 2.785 auto 2nd gear ratio: 1.925:1 / 1.545 auto 3rd gear ratio: 1.302:1 / 1.00 auto 4th gear ratio: 1.000:1/ 0.694 auto 5th gear ratio: 0.752:1 / na auto Reverse gear ratio: 3.369:1 / 2.272 auto Final drive ratio: 3.692:1 Viscous coupled limited slip differential

01-19-2010, 11:01 PM	#17
Big Zee Zilvia Addict Join Date: Oct 2005 Location: BC Age: 37 Posts: 860 Trader Rating: (10) Feedback Score: 10 reviews	^ no worries dude, if you have tall tires on 17's 5th isn't so bad haha if you stumble across a 300 trans grab it though, sr/ka trannies are weak