First Constant grind

[Lofty]

Well here goes.
I recently changed my tranny fluid to syncromesh.
Now 2 weeks later, it's doing this odd thing.
if I put it in neutral, let off clutch, and try to put it in 1st, it has a constant grind, like I cant even shove it in because it feels like a gear is just spinning.
If I go into second then first it doesn't do it.
What's going on?

 

[spooling 1g]

Try pushing the clutch back in.

 

[Lofty]

No really.
I didn't type that out because I thought it was a given. Don't be a smartass.

 

[viperlp01]

try changing back to a normal petrol based fluid. I talked to Jon at TRE and he stated that synthetic has a tendency to move its self out of the way faster than a normal petrol fluid. That means that the syncros loose fluid in there little lines and it cause improper engagement. I think that is what he was saying. It also can be your intermediate shaft going bad or improper clutch disengagement.

 

[spooling 1g]

No really.
I didn't type that out because I thought it was a given. Don't be a smartass.

I am not a mind reader.

Check your slave if it's just starting now after a couple weeks it might not be related to the fluid change.

 

[Bud92gsx]

Try pushing the clutch back in.

Yeah Lofty push the damm clutch it.... You didn't have to push it before you changed to synthetic...And it could be the fluid. Nice little tidbit I learn from this conversation...Plus synthetic has to be warm to really help. Try to let here sit in the driveway for 10 or 15 min before driving, and make sure you push clutch in and run through gears ..then with clutch out in the driveway at idle, . Se if the problem is still there when you pull her out .

 

[Bud92gsx]

Just make sure the tranny fluid get warm while driving or in the driveway, then tell me the prob is still there...

 

[r1991_4g63t]

stupid drunk question but shouldn't it grind without the clutch in? WTF

 

[Bud92gsx]

Not if speed shifting...

 

[DSM1G90]

if I put it in neutral, let off clutch, and try to put it in 1st, it has a constant grind, like I cant even shove it in because it feels like a gear is just spinning.
If I go into second then first it doesn't do it.

Bro, your 1st gear syncros are shot.

To test how your syncros is to have the tranny in neutral, motor running and move the shifter to 1st gear without pushing in on the clutch. The syncro cones should be trying to slow down the geartrain, thus it will slow down the motor a bit.

But, if the syncro is gone, then you'll get this grinding. .. and this test can be done in any gear to test syncros.

You're due for a tranny overhaul or replacement.

-DSM

 

[Lofty]

Bro, your 1st gear syncros are shot.

To test how your syncros is to have the tranny in neutral, motor running and move the shifter to 1st gear without pushing in on the clutch. The syncro cones should be trying to slow down the geartrain, thus it will slow down the motor a bit.

But, if the syncro is gone, then you'll get this grinding. .. and this test can be done in any gear to test syncros.

You're due for a tranny overhaul or replacement.

-DSM

Thanks man. I did this test, and thats the only syncro bad.
If I shove it into 2nd [WITH THE GODDAMN CLUTCH IN ] then into first it doesn't grind.
So I guess I'll just baby it like this until I get the money for a new tranny.

Thanks man, you deserve rep for this post.

 

[WCDSM]

Make sure you have enough fluid in your tranny. Could just be a little low, or you 1 gear synchro is on the way out.

 

[Dserge]

I have the exact same problem. But just learned to drive around it. I never grind a gear hardly even with my trash tranny.

But yeah, time for a new tranny/rebuilt bro.

 

[Lofty]

Eh I'll drive around it until I break it. HURRAY!

 

[DSMified92]

yea i have to drive around mine to...my 3rd gear grinds like hell but if im really really realy easy with it she doesnt grind at all and im not worried bout it until my tranny falls out or until 3rd gear is gone completely cause i have another tranny

 

[DSM1G90]

If I shove it into 2nd ... then into first it doesn't grind

Had a '90, 1.8 with the same problem and learned to begin in 2nd then back into 1st to eliminate the grind while on the stoplight.

Doing that, stopped that set of gears so I could do 1st gear without grinding.

Good luck anywhos - DSM

 

[pj91gsx]

i have seen a lot of grinding on dsm transmissions. with the clutch completely in. Im not sure why it does that. seems like the clutch is not going in far enough even though you have the pedal down. I did this in a rebuilt transmission too. I wonder if it is the master cylinder needing replacement or something. I read on here a new master cylinder makes a big difference.

 

[r1991_4g63t]

i have seen a lot of grinding on dsm transmissions. with the clutch completely in. Im not sure why it does that. seems like the clutch is not going in far enough even though you have the pedal down. I did this in a rebuilt transmission too. I wonder if it is the master cylinder needing replacement or something. I read on here a new master cylinder makes a big difference.

if its doing it with the clutch in its either a hydraulic problem, bent fork, or worn pivot ball

 

[Lofty]

if its doing it with the clutch in its either a hydraulic problem, bent fork, or worn pivot ball

But I did the syncro test, everything happened as he said it would.

 

[DSM1G90]

..and just to support Lofty on this .. for if he can shift smoothly into the other gears, or even if he started out in 2nd, it's not the clutch assembly for he didn't say anything about hard shifting within the other 4 gears, plus reverse.

His 1st gear syncro is shot, prob from a lot of hard shifting esp downshifting that caused that syncro to wear out. - he's gonna have to do the 2nd to 1st shift method while he's stopped if he doesn't want to hear anymore grinding.

-DSM

 

[Lofty]

..and just to support Lofty on this .. for if he can shift smoothly into the other gears, or even if he started out in 2nd, it's not the clutch assembly for he didn't say anything about hard shifting within the other 4 gears, plus reverse.

His 1st gear syncro is shot, prob from a lot of hard shifting esp downshifting that caused that syncro to wear out. - he's gonna have to do the 2nd to 1st shift method while he's stopped if he doesn't want to hear anymore grinding.

-DSM

It was more then likely shot when I bought the car, it sat for a long time, and nobody drove it.
I don't think I did it, mainly because I NEVER downshift into first.
Thanks for the help guys.

 

[the_mork]

You don't need to replace the syncros in first, just change the way that you drive. Look up double clutching (and then don't ever use it since you don't need first) my MG came from the factory with no syncro in first. The easiest way to get your tranny into first without that nasty grind is to set the shifter against first and feel for a smooth point as you push the clutch in. Putting the car in first will be hardest if you sit with the clutch in. Putting the car in second while stopped then moving to first will sometimes help too.

 

[Lofty]

You don't need to replace the syncros in first, just change the way that you drive. Look up double clutching (and then don't ever use it since you don't need first) my MG came from the factory with no syncro in first. The easiest way to get your tranny into first without that nasty grind is to set the shifter against first and feel for a smooth point as you push the clutch in. Putting the car in first will be hardest if you sit with the clutch in. Putting the car in second while stopped then moving to first will sometimes help too.

No no no no. It only grinds when I go into neutral, if I'm moving and click it in [without letting out the clutch] it's all good. Double clutching is the only way I downshift. It's hard to do it any other way.

 

[doesitonall4rs]

so your saying that if you are in 1st and then go into neutral it grinds? that sounds really strange?

 

[r1991_4g63t]

No no no no. It only grinds when I go into neutral, if I'm moving and click it in [without letting out the clutch] it's all good. Double clutching is the only way I downshift. It's hard to do it any other way.

thats not good lofty, does it only do it at higher rpms? if so put your foot down faster (clutch)