Raider74

With my Muncie T-22 It seems every time i go to put it in reverse just as it goes in i get a small gear grind. This is confusing because the clutch pedal is fully depressed so there should be minimal connection... I understand that the reverse gear has no syncros but should this problem exist? It shifts fine 1 thru 4 with clutch depressed. For now i have been avoiding this by putting in reverse before i start but thats not always an option...

larrywalk

The grind into reverse (assuming you're not moving) is caused by the countershaft, input gear and clutch disk still spinning. Assuming that your clutch fully disengages and you're stopped, it should not be spinning unless you let the clutch pedal out in neutral. In that case, wait a few seconds for it to stop spinning and then into reverse, OR, with the clutch pedal depressed, select first or second gear momentarily and then quickly into reverse.

If the problem is still there, the clutch disk may be dragging even with the pedal fully depressed, and spins up when the shift lever is passing through neutral. In this case, check the clutch adjustment.
And if that didn't help, most likely your throwout bearing is installed incorrectly:

jordan89

Goos info larrywalk.

forvicjr

If no problems with your set up, Just go to first then reverse.This will stop trans coast. Idling with clutch out then going to reverse will get you this grinding.

Eddie 70

Larry's statement about putting it into first for just second and then into reverse what what I was thinking. That is the first time I have ever seen that pic. Thanks for posting it.

Solid LT1

That's the TICKET!

Raider74

works like a charm, thanks guys!

pws69

There is another potential cause of this that has not been mentioned and is not that uncomon in my experience: the trans shaft could be binding in the pilot bushing.

...Roger...

Might be an indication of an upcoming problem also.

EDIT- Here is the GM clutch spindown test. This test indicates that the grinding should not happen even though you can stop it by going into any forward gear.

thoyer

"Wait nine seconds"............. Funny. Why not an even 10?

How did they come up with nine?

I suppose 10 was too long, 8 was too short and 11 is right out..........

Raider74

I dont believe I have any problems with the clutch components. I pulled my engine and replaced the clutch, pressure plate, and thowout bearing myself, as well as that damn little pilot bushing in the crank which many mechanics are too lazy to replace. by the way on a side note here is a useful trick i will also post as a new thread.
1. Fill the center of the pilot bushing with heavy duty axle grease.
2. find a flat punch or chisel handle that is barely smaller than the inside diameter of the pilot bushing.
3. Position the punch over the grease in the hole
4. hit it with a rubber mallet-- the bushing pops right out due to hydraulic pressure in the grease! Enjoy!

Also, if i wait the nine seconds i get no grind so i believe it is all in working order. thanks again guys

blckslvr79

9 seconds? That's just stupid!

I had this same grind prior to replacing my clutch. After the clutch was replaced I get no grind what so ever. I tend to believe your clutch is not fully engaging.