Tranny Assembly Problem [Archive] - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

allntrlundrgrnd

11-13-2008, 07:24 PM

I recently took the transmission out of my SR due to the lose of my 5th gear synchro. I had the opportunity to get a KA tranny from a friend so I decided to swap the SR bellhousing over. I took the KA tranny completely apart from the bellhousing and tailshaft to inspect the gears. Everything looked good to go so I swapped the SR bellhousing over to the KA tranny and tailshaft. After sealing the sandwich plate up with liquid gasket I installed all of the tailshaft componets.... (speed sensor, shifter plate, etc). I wanted to check to make sure everything was still in order so I shifted smoothly through all 6 gears. After installing the snap ring I went to tighten the plate that goes over the front oil seal and input shaft. After tightening the plate down the input shaft would spin but with LOTS of resistance. Also, when I tried to shift through the gears everything felt alot more "sketchy" and 3rd or 4th didn't engage.

I'm really stumped on what is going on because I made sure to stay very organized and put everything back to normal. I'm positive I've got every part put back into place. I think the bearing around the input shaft maybe getting binded up, but I tried messing around with how it sat as I tightened and still no luck. Any help would be greatly appreciated.

Some pictures for reference:

This is the location of the where the plate bolts onto

http://img.photobucket.com/albums/v645/duballstar37/IMG_0604.jpg

The plate itself:

http://img.photobucket.com/albums/v645/duballstar37/tanny.jpg

SochBAT

11-13-2008, 11:41 PM

i did the exact same thing, but not. I used an SR tranny on my SOHC. The main problem i had was gettin that damn plate on. Took a bit of elbow grease, but it worked.

When installing everything, i made sure everything was spotlessly clean. Cans of BrakeCleaner were used, everything moving was lubed. MAYBE its just the tranny itself.