94 civic hatch. jdm d16a. si tranny.
i have a 3rd gear grind at high rpm only. i tried maxing out 2nd gear and slowly putting it in 3rd with clutch fully to the floor, still grinds. i'm pretty sure my syncos are gone so i would like advice on ways to fix this problem before it gets wrose or will it ever get so bad i can't even go in 3rd?? i dont mind the grind if it will never effect my tranny but if it'll slowly get wrose then i might as well try somthing now. i herd putting gm synchromesh in my tranny will help the grind, iono if thats true. advice please, thanks.

 

gm synchro will help but wont cure it. its only a band-aid...

 

how mcuh will it help? will it actually work and not grind in 3rd anymore for a period of time? or will it still grind but just putting in gm synchromesh will help hold my tranny together.

 

bump i want to know this to my gsr tranny does the same thing

 

whats a d16a?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicfast &raquo;</TD></TR><TR><TD CLASS="quote">whats a d16a? </TD></TR></TABLE>

japanese version of the usdm d16z6.

 

rare?

 

go to autozone and get 3 $5 bottle of pennzoil syncromesh fluid. it takes about 2 and 1/4 to fill a bseries trans.

Did this in my 150k gsr trans and fixed the prob.

 

yes. rare. most people get it confuse with the usdm d16a6 off the crx. but its not.

 

synchro mesh fixed my 3rd gear grind. been over a year no grinds!

 

The fluid fixes nothing. Your synchros are still worn, and the grind will come back.

 

how often do i have to add the synchromesh? do i change it like how i would change tranny fluid?

 

Yes. I don't know what the fluid change intervals are. I'd assume 12 months or 30,000 miles (sounds a bit high).

I change everything annually.

 

maybe the fact that the synchro mesh is a thinner viscosity than honda mtf it allows the synchros to spin more freely allowing the to work properly. if so many hondas do it maybe the honda mtf is just simply the cause because it is to thick. food for thought for all the haters..... you can say what you want but my tranny dont lie take out honda mtf put in synchro mesh no more grinding for over a year. as i see it problem fixed.

 

my 3rd grind if dont hold the clutct to floor all the way.. basliy only whe i racing... i gotta buy a diif for my ls tranny and sell the b16

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicfast &raquo;</TD></TR><TR><TD CLASS="quote">rare?</TD></TR></TABLE>

Very rare indeed if that's what he has. Supposedly has 140hp, making it the most powerful sohc motor. Again this is what I've heard, it's pretty rare so there's not solid info.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast95eg9 &raquo;</TD></TR><TR><TD CLASS="quote">

Very rare indeed if that's what he has. Supposedly has 140hp, making it the most powerful sohc motor. Again this is what I've heard, it's pretty rare so there's not solid info.</TD></TR></TABLE>

finally someone that knows something about my motor. i have so many people told me i got a crx motor. sigh. hehe

 

what brand of syncromesh is good for my car?

 

gm sychromesh friction modified or pennzoil synchromesh from autozone.

 

I got the same problem on my gsr.... only grinds on 3rd when im racing or shifting over 6k or higher. im going try that pennzoil syncromesh fluid. Thanks for the info drift4jesus

 

is this a common problem for honda tranny to grind in 3rd? cuz my old gsr had the exact same problem.

btw. what are some good brands of syncromesh for honda manual transmission?

 

It's called G.M. Syncromesh for a reason.

Contact your local G.M. dealer.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drift4jesus &raquo;</TD></TR><TR><TD CLASS="quote">go to autozone and get 3 $5 bottle of pennzoil syncromesh fluid. it takes about 2 and 1/4 to fill a bseries trans.

Did this in my 150k gsr trans and fixed the prob.</TD></TR></TABLE>

drift4jesus suggested to get pennzoil syncromesh. i never used this before so i was just wondering if different brands make a difference.

 

Probably not. Why don't you try it and find out. Last time I picked up Syncromesh, I paid about $7 per quart (you need 2 for d-series).

 

why does 3rd grind in alot of cars and not 1.2.4.5