can't find link to grinding gears
Moderators: rickf, raymond, Mr. Recovery
can't find link to grinding gears
I need some advice. it's been 30 years since I was a full time Mechanic on the M-151's and I have lost half my brain. Anyway, lately when shifting gears I hear the dreadful grinding of gears. Wasn't there a subject on the matter of the top side shifter fixes. Mine needs to be realigned/fixed. ????
My clutch is fine.. for now. eeerrrrr
Thanks, Mike
My clutch is fine.. for now. eeerrrrr
Thanks, Mike
Re: can't find link to grinding gears
Go to the board index then to technical discussion, type in search blank grinding when shifting, you'll get some responses , also sure it is full of oil.I can remember the same thing but I forgot what I did to fix it
mark
1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416
1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416
Re: can't find link to grinding gears
I tried that mark, could not find the thread. eerrr
But, Thank you Sir !!
But, Thank you Sir !!
Re: can't find link to grinding gears
results for search under "grinding transmission"
https://www.g838.org/search.php?keyword ... d%5B0%5D=3
https://www.g838.org/search.php?keyword ... d%5B0%5D=3
Re: can't find link to grinding gears
Depends on where the grinding is occurring. Is it from first to second, second to third, third to fourth?
second to third grinding is usually the reverse detent spring issue. First to second or third to fourth is going to be worn syncronizers. Or a bearing issue in the transmission. Will it go into first and reverse without grinding?
second to third grinding is usually the reverse detent spring issue. First to second or third to fourth is going to be worn syncronizers. Or a bearing issue in the transmission. Will it go into first and reverse without grinding?
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
Re: can't find link to grinding gears
Will it go into first and reverse without grinding ?.... Yes no problem there.
Re: can't find link to grinding gears
Then the clutch is good and the pilot bearing is probably not binding. Sometimes the clutch feels good but it can be swelled and although it feels like it is releasing it is actually still touching in places.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
Re: can't find link to grinding gears
I failed to mention, it only happens when going into 3rd gear. I still think it is in the top section ( shifter body/ synchronizer ). ? But I have been wrong many times. I am just a shade tree mechanic these days. I still need advice and appreciate all replies.
Re: can't find link to grinding gears
Pause just little bit in neutral between second and third before going into gear.
Re: can't find link to grinding gears
Ok, here is how I shift; in separate motions, from 2nd gear hit it up motion to the neutral, then move it horizontal to in 3rd position, up motion to 3rd gear, to 4th gear in a slow motion. Essentiality no speed shifting
mark
1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416
1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416
Re: can't find link to grinding gears
You are probably right and it is the reverse detent spring. They used to sell a kit to repair it but I have not seen it for years. Last I saw it was over in Holland or Germany?
As has been said, when you shift you just have to take your time and make sure you are lined up before pushing straight up.
As has been said, when you shift you just have to take your time and make sure you are lined up before pushing straight up.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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- Sergeant First Class
- Posts: 242
- Joined: December 8th, 2007, 11:29 am
- Location: Allentown, PA
Re: can't find link to grinding gears
Cant the spring be stretched, I think that was an alternative to replacement... Was it surplus City in Cali that had them? Scott O&O
Re: can't find link to grinding gears
When it comes to springs, I've learned that most places that specialize in springs will have whatever you want in whatever size you want. By way of example, the guys at Ace Spring Service in San Antonio Texas are absolute magicians when it comes to weird and oddball stuff. I was able to replace a spring in an ancient steam whistle (think about that) just by walking in the door with the old spring and a description of the application. So, if you get stumped on getting a replacement, I'd suggest you give them a call.
Cheers,
TJ
Cheers,
TJ