Hi All,
First of all , sorry for my writing skill in English , I'm Thai.
After 2nd of rebuilding my syncro's tranny, the 4th still pop-out.
The 1st time of rebuilding was because the lever ( the one that has white ball head ) and the shifter axel. So dissembled then changed the axel, most of roller that available and syncromesh. Then assembled and put back to my van. After a short test run, the shift pop-out from 4th gear while driving , not immediately. So it needed to be dissembled again.
The 2nd time of dissemble, we found that the 3 pins and spring wire of 3/4 sleev/hub were in wrong possition. So we put it back and assemble them back to my van. Unfortunately, it still pop-out. This time I drove for a month to learn popping characteristic. I've learn that it would pop-out when engine ran at high acceleration. Holding shifter by banjee cord would help but not so good.
We put it out from my van and then we put the tranny to the "tranny rev'ter " as pic links below
The 3phase electrical motor drive the 1:3 gear then drive the tranny.
Put tranny to 4th position by manual then start the e-motor. Rev it up to 1200rpm then the tranny rev to 3600 rpm. No pop-out !!!!!!!!
That must because the tranny has no load, no wheels attached.
I think it would be the same result if it put some brake mechanical to tranny's end shaft.
Here are the plan if the tester pop out :
1. It "must be" something inside that cause the popping.
2. I have the old , unusable syncro tranny from my friend. I'll drill some holes to old tranny's case to use them as special tools as describe in Brentley 's manual. The Jig for inspect shaft assembly.
3. My mechanic said it might because the new syncromech has thicker tapper. Is it possible?
Sent from Boon's iPad2
