HELP! Broke something in T56
10-30-2008, 11:30 AM
#25
Hard to see, but is:
1) The retaining ring on the rev gear, after the large washer?
http://www.eecis.udel.edu/~davis/z28...DCP_%20056.jpg
2) Were there spacers on BOTH sides of the bearing that melted? It looks like there's only one on the shaft?
http://www.eecis.udel.edu/~davis/z28...DCP_%20058.jpg
mike
1) The retaining ring on the rev gear, after the large washer?
http://www.eecis.udel.edu/~davis/z28...DCP_%20056.jpg
2) Were there spacers on BOTH sides of the bearing that melted? It looks like there's only one on the shaft?
http://www.eecis.udel.edu/~davis/z28...DCP_%20058.jpg
mike
10-30-2008, 11:47 AM
#26
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Yes, the snap ring is there after the thick thrust washer. It's hard to see because one of the spacers (the one closest to reverse gear) is mashed against the reverse gear snap ring! I had to cut off that spacer.
The spacer on the other side of the roller bearing (farther away from reverse gear) was intact and present.
Looking at these pictures focuses my attention on the reverse synchro sleeve. Reverse was working when I first drove the car, but later would not. I think the synchro sleeve was not engaging the teeth on the reverse gear. I'm wondering if I didn't properly set the shift rail correctly to which the reverse fork is attached. Notice on my pics how much of the reverse synchro hub is exposed? The transmission is in neutral.
The spacer on the other side of the roller bearing (farther away from reverse gear) was intact and present.
Looking at these pictures focuses my attention on the reverse synchro sleeve. Reverse was working when I first drove the car, but later would not. I think the synchro sleeve was not engaging the teeth on the reverse gear. I'm wondering if I didn't properly set the shift rail correctly to which the reverse fork is attached. Notice on my pics how much of the reverse synchro hub is exposed? The transmission is in neutral.
10-30-2008, 11:59 AM
#27
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The only thing I can think of is maybe you crowded the reverse gear . When you installed it on the main shaft , did it turn freely ? Were the cut outs on the reverse syncro lined up with the shift keys in the reverse slider ? How does the reverse syncro ring look on the side that faces the reverse gear ? How do the cut outs look on the side that faces the reverse slider ?
10-30-2008, 12:34 PM
#28
Could you have forgotten the synchro hub retaining ring?
http://www.eecis.udel.edu/~davis/z28...DCP_%20055.jpg
Looks like the hub may have moved towards the REV gear, crowding everything and overheating the bearing?
http://www.eecis.udel.edu/~davis/z28...DCP_%20055.jpg
Looks like the hub may have moved towards the REV gear, crowding everything and overheating the bearing?
10-30-2008, 12:50 PM
#29
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I haven't taken the reverse synchro apart, but the hub retaining ring is there. When I get home I'll post pics I took of the reverse gear as well. The brass blocker ring is now part of the reverse gear. It's mashed or welded to the reverse gear from heat or force. That's why I'm wondering if I didn't install the shift rail correctly and when I put the shifter into 5th and 6th it was cramming everything towards the rear and mashing it all into the extension housing.
10-30-2008, 01:02 PM
#30
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I bet you crowded the reverse gear with the reverse syncro ring . You will know once you pull the gear off the main shaft and look at the parts I mentioned earlier .
10-30-2008, 01:04 PM
#31
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Could you have forgotten the synchro hub retaining ring?
http://www.eecis.udel.edu/~davis/z28...DCP_%20055.jpg
Looks like the hub may have moved towards the REV gear, crowding everything and overheating the bearing?
http://www.eecis.udel.edu/~davis/z28...DCP_%20055.jpg
Looks like the hub may have moved towards the REV gear, crowding everything and overheating the bearing?
10-30-2008, 01:09 PM
#32
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I assumed 85MikeTPI was referring to the stamped steel key retainer on the opposite side. I've already completely disassembled the transmission and didn't notice the synchro keys and blocker not alligned correctly. All snap rings, keys, and retainers were accounted for.
10-30-2008, 01:49 PM
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The snap ring was there.
I keep coming back to how much of the reverse synchro hub is visible in my pic compared to other pics I've seen. Remember, I wasn't able to get the car in reverse before it went bad. I think initially, the synchro sleeve was engaging reverse just barely enough to move the car. After using reverse a couple times it wouldn't engage anymore. When I pulled the extension housing off, I tried to move the fork to engage the sleeve to reverse gear and it wouldn't move back far enough. This initially led me to think that I installed the reverse fork upside down, but I was wrong. With the shifter in neutral, it looks like the synchro sleeve is too far forward to me.
I'm wondering if I didn't install the 5/6/reverse shift rail correctly (item 140). I don't know.
I keep coming back to how much of the reverse synchro hub is visible in my pic compared to other pics I've seen. Remember, I wasn't able to get the car in reverse before it went bad. I think initially, the synchro sleeve was engaging reverse just barely enough to move the car. After using reverse a couple times it wouldn't engage anymore. When I pulled the extension housing off, I tried to move the fork to engage the sleeve to reverse gear and it wouldn't move back far enough. This initially led me to think that I installed the reverse fork upside down, but I was wrong. With the shifter in neutral, it looks like the synchro sleeve is too far forward to me.
I'm wondering if I didn't install the 5/6/reverse shift rail correctly (item 140). I don't know.
Last edited by bb5401000; 10-30-2008 at 02:00 PM.
11-06-2008, 05:58 PM
#36
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Sorry it took so long to get the other pics posted. They're in photobucket. The URL is:http://s415.photobucket.com/albums/pp238/bb5401000/
11-07-2008, 11:14 AM
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85MikeTPI, I'm almost positive that snap ring was there. It's hard for me to remember now because I took that photo over a week ago. I didn't remember to grab the camera until after I'd already chiseled off the reverse gear snap ring and thrust washer. I'm sure I would have noticed the groove for the sychro assembly not having a snap ring in it because I was paying particular attention to the snap rings during the disassembly.
TDP, I haven't fixed the tranny yet because I bought a NEW T56 off Ebay for $1300. Some guy was dumping stuff for his project car and had a tranny he bought new directly from Tremec a couple years ago. It had been sitting in his garage and was never installed in the car. My dad lives near him and picked it up for me. He examined the transmission as best he could without tearing it apart and said it did in fact look brand new and never installed. I'm debating whether I will fix my broken T56 and sell it, keep it for spare, or sell it as is.
TDP, I haven't fixed the tranny yet because I bought a NEW T56 off Ebay for $1300. Some guy was dumping stuff for his project car and had a tranny he bought new directly from Tremec a couple years ago. It had been sitting in his garage and was never installed in the car. My dad lives near him and picked it up for me. He examined the transmission as best he could without tearing it apart and said it did in fact look brand new and never installed. I'm debating whether I will fix my broken T56 and sell it, keep it for spare, or sell it as is.