[propaniac]

I have a manual transmission question.

I recently had a shop in phoenix rebuild an old clark 282 transmission for me. It is out of a f-800 ford. The trans now acts like there is no synchros in it when I downshift from 4th to 3rd. When it is sitting idling I can try to pull it into gear and can feel the synchros. Also when shifting from 2nd into 3rd the synchro usually works. I called the guy that built it and he told me that the synchros had to "break in". He suggested that I gently hold the lever against the synchro for 45 sec for a couple of times. I have tried this and still not right. Any one have any suggestions before I pull it out and send it back.

John

[M&M CUSTOM]

I would think the synchros should "work" right from the start, and just get smoother from there.

[propaniac]

Thats what I thought. I have never heard of breaking in a synchro, but I have only redone a few manual transmissions and they were the smaller new process'.

Looks like I will be pulling the trans.

Has anyone else heard of having to break in a synchro?

John

[sbchevfreak]

nope.

[propaniac]

I am getting the transmission back tomorrow. The shop put new synchros in it. Hope it works this time.

[Blown79]

Yes you were right something is wrong. I run the same tranny in my F-800 and have the same problem from 4th to 3rd ,mine is wore out.
Ed

[julmer]

Broken syncro rings are not all that uncommon. I've replace a number in school bus transmissions. If it was a recent rebuild, there shouldn't be any problem. Sounds like the rebuilder gave the old ones an eyeball and said, "Good Enough". He was wrong

[propaniac]

Got the trans in week before last and forgot to mention that it works great now.

John