5th Gear Popping out

Campbell · Feb 13th, 2003, 07:48 AM

On the highway my 87 Sentra just started popping out of 5th gear a couple times, it will stay in if I hold it. Is there an adjustment for this? has anyone else had this problem? any help would be appreciated. thanks

SuperSentra4203 · Feb 13th, 2003, 08:12 AM

I know that quite a few people have problems with this in older cars with 5 speed transaxles. Sometimes it can actually be your clutch. Unfortunately, most of the time it's your transaxle, something like the 5th gear syncros. Not quite sure but I can ask my uncle sometime, he knows about this problem and has fixed several of my mom's cars with 5th gear pop-out.

boost_boy · Feb 13th, 2003, 03:40 PM

Sometimes it's the mounts, but most tmes the sychros are worn and may come out cheaper just getting another tranny!

SuperSentra4203 · Feb 13th, 2003, 05:11 PM

It's pretty bad, with so many people having 5 speeds, I had 4 speed manual. Then again, I never had to worry about 5th gear pop-out. I recommend getting a new tranny. Junkyards really don't charge that much for one in good shape. Happy hunting.

blownb310 · Feb 13th, 2003, 09:55 PM

Try doing a search on this site. I've explained how to fix this problem several times. You don't even have to take the trans out.

Campbell · Feb 14th, 2003, 06:28 AM

Blownb310,

I have tried searching on your name and the 5th gear subject and can't find your thread on the 5th gear repair.. do you remember what the subject was for it? thanks

fastpakr · Feb 14th, 2003, 07:54 AM

Blownb310's fifth gear fix

blownb310 · Feb 14th, 2003, 08:02 AM

Thanks fastpakr,
I was having touble finding it again!

Campbell · Feb 14th, 2003, 08:23 AM

Thanks for the link guys, looks simple enough when it warms up I will give it a try!!

fastpakr · Feb 14th, 2003, 11:03 AM

Quote:

Originally posted by blownb310
Thanks fastpakr,
I was having touble finding it again!

No problem, thanks for posting it in the first place. I have to admit, I'm still catching up on the different series and engine id's that Nissan uses. My '86 Pulsar would have the same 5 speed as a B12, correct?

blownb310 · Feb 14th, 2003, 02:43 PM

Quote:

Originally posted by fastpakr
No problem, thanks for posting it in the first place. I have to admit, I'm still catching up on the different series and engine id's that Nissan uses. My '86 Pulsar would have the same 5 speed as a B12, correct?

***** Actually, no. The B11/N12's [like your Pulsar] used an RS5F30A trans. The B12's used the RS5F31A trans. The B12 trans has slightly bigger internals, and a slightly different set of mounting holes for the side transaxle mount. In fact, now that we are talking about the RS5F30A transaxles like yours, I have a set of lower final drive gears you might like, for better accelleration. Your car has 3.89 to 1 final gears in it, and I have a set of 4.17's for sale, for $100. They cost three times that new.

rice rocket (soon) · Feb 14th, 2003, 08:50 PM

Quote:

***** Actually, no. The B11/N12's [like your Pulsar] used an RS5F30A trans. The B12's used the RS5F31A trans. The B12 trans has slightly bigger internals, and a slightly different set of mounting holes for the side transaxle mount. In fact, now that we are talking about the RS5F30A transaxles like yours, I have a set of lower final drive gears you might like, for better accelleration. Your car has 3.89 to 1 final gears in it, and I have a set of 4.17's for sale, for $100. They cost three times that new.

holy crap man do you have a life?

(besides nissans?)
thats more numbers and letter than i could remember.