Miguel613ekb18c

Hey guys I got a 99 civic si Canadian jdm swap b16 LSD trans integra shifter linkage
So today I pulled out of my driveway went thru 1st and 2nd gear and when I go to put it in 3rd it just won't go in
I have never had a problem with the gears b4 this never had a grind even at high rpm
All the sudden it won't go in 3rd gear even with the car off it feels like hitting a wall when I put it in third gear
Any suggestion would be appreciated

slowcivic2k

If you can get into 1 and 2, the throw is correct on the shifter, if you cannot get into 3 you have something out of position in that gear, and those things are many. Start with these:

1: Interference in the shifter (exhaust hits it. etc)
2: Defective shift piece internal to the transmission.

It may be going into gear, but the teeth are missing. (hardly possible without you knowing)

If the transmission was serviced before, it may have been incorrectly assembled. There are simply too many what-ifs, and not enough information from you.

Miguel613ekb18c

Thanks for advice it will be till Monday till I can put it on a hoist
The thing is 1st n 2nd are ok 4th is ok 5th feels weird and third feels like the shifter is not traveling far enough to go in gear
With the car off I put it in third start the car clutch in as soon as I let the clutch go it grinds
One thing though the shifter feels like it's out of place
I'll check my exhaust clearance come Monday

Mista Bone

You could have exploded a synchro blocker ring which is preventing full engagement.

Emeraldbomber

I've seen quite a few of these problems due to the rods hitting off stuff and being blocked. If not then I second mista or the shift mechanism/fork could be messed up. Either way you'll have to tear it down.

Miguel613ekb18c

Talked to a tranny guy at my work he said cant be the forks since 1st and 5th trows are ok so it's down to 3rd gear synchro

I have an s80 LSD trans I've called up local honda dealer they needed a car and year to order parts so I told them its a 99 si
My question is would b16 s4c trans parts fit my s80 trans I've always had good discounts from the dealers since I buy from them all the time I ordered 2nd and 3rd gear synchros $140 for both

Emeraldbomber

That happened in my accord trans but that's an h/f trans. I'm not sure on b series.

Fliptard

Yes those synchros will work fine.

Honda Bull

You can, without question, have a 3rd or 4th gear issue with the fork and 1/2 and 5/R be perfectly fine. 3rd /4th is isolated to its own fork. That's not be the case in all transmissions, but it is in nearly all FWD manual transmissions. Given the information provided, I don't believe your issue is a fork issue. But just wanted to clarify in case anyone reading this thinks the quoted portion is gospel.

Emeraldbomber

This is what I thought too. Thanks for clarifying.

Miguel613ekb18c

Thanks for the input guys
Bad news found out today 3-4 synchros back order till end of July
On the good news I have a spare b16 s4c trans that ill be swapping in ill have to swap the diff between the two since s4c trans is non lsd

F22Master

Contact Synchrotech for any transmission parts you need! Im sure they will have it in stock and can get the parts to you in no time.

Miguel613ekb18c

Took apart my spare tranny today to swap lsd and found this missing ball bearing on my input shaft

Emeraldbomber

A chewed up first? Can't see **** in your picture.

Fliptard

yea, that can cause a few issues,. haha.

Inspected everything else for damages, post pics of them, if any.

Emeraldbomber

Ah yes. That will cause issues lol.

slowcivic2k

You need an input shaft and the countershaft gears to go with it, along with the bearing and seal. Inspect and replace parts as required.

Miguel613ekb18c

After opening my tranny case found out why I couldn't get into third gear fist there was no magnet inside the casing, second my 3rd gear synchros was ok just wouldn't engage due to a price of shrapnel blocking the synchros, so I replaced the worn 2nd gear synchro sleeve set from my old s4c, also used s4c final drive cause my s80 had a chip on 1 of the gears, reassembled the s80 trans installed 2 magnets and all good to go
Thanks for the help guys it's always good to have a spare trans kicking around for parts, once the my parts are in from back order ill rebuild my spare sc4 trans