C-Beam picture included - Does this look like signs of C-Beam movement or normal? - Page 2 - ZR-1 Net Registry Forums

Corvette95 · 12-05-2020

I got the C-beam out, did not want to cooperate but got it. I inspected the holes...forgot to take a picture , will post them tomorrow. Strange, front and rear had one perfect hole but one in front and rear seems slightly oval. There wasn't any adhesive on the C-beam as I expected, cleaned it anyway. C-Beam plates aren't here yet anyway nor are the motor mounts . Gonna media blast the beam tomorrow. I think I am going to risk doing duplicate work and put it all back together with the new motor mounts and C-beam and take it for a test drive (headers only-gonna be loud) and see if it still pops out of third when re-engaging the throttle. It it was driveline movement, it would save me 4K instead sending it to Bill. I have never heard of a bad black tag at 29k miles .

tccrab · 12-05-2020

I have a 9000 mile black tag that came out of my '90 with bad synchros in third.
The previous owner loved to practice his speed shifting and was really good with first to second.
Not so good with second to third.

By the time I got the car with 9300 miles on her, third gear was pretty much shot and second gear was going in the same direction.
It would shift ok if you would pretend it was your grandmothers car, but if you wanted to shift it like Speed Racer you were out of luck.

I found a blue label Bill Budreau rebuild, and have never looked back.

'Crabs

32valvZ · 12-05-2020

Popping out of gear on deceleration in any gear is pretty much a tell tale sign of bad synchros... ...

Corvette95 · 12-06-2020

Ok....consider my optimistic bubble burst , guess trans will go to Bill but I think I must do a test drive after the motor mounts and c beam plates just for peace of mind, 4K is hard to part with with Covid and Christmas

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Paul Workman · 12-06-2020

Quote:

Originally Posted by Corvette95

Ok....consider my optimistic bubble burst , guess trans will go to Bill but I think I must do a test drive after the motor mounts and c beam plates just for peace of mind, 4K is hard to part with with Covid and Christmas

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Yeah, and you can mention to him that I have another one for him to look at. Mine sometimes "crunches" going into 5th gear unless it is warmed up and I baby it. I rebuilt a Muncie 22 (aka "Rock Crusher) once. A ZF would be a challenge...especially with shade-tree mechanic's tools! So, I guess I'll let Bill do his magic...again! (different trans this time).

32valvZ · 12-06-2020

Quote:

Originally Posted by Corvette95

Ok....consider my optimistic bubble burst , guess trans will go to Bill but I think I must do a test drive after the motor mounts and c beam plates just for peace of mind, 4K is hard to part with with Covid and Christmas

Sent from my iPhone using ZR-1 Net Registry

The previous owner of my 90 had a terrible experience with some hack who said he knew the ZF and could rebuild them... $2400. was the cost.... well, in a nut shell, that guy destroyed the transmission pretty much totally... Next step was to send the trans to Bill. $4200. this time plus freight.... Moral of the story.... be sure not to take your transmission to anyone but Bill.... The transmission shifts like a well broken in bolt action rifle if you can relate to that analogy at all...

12-05-2020	#11
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,107	Re: C-Beam picture included - Does this look like signs of C-Beam movement or normal? I got the C-beam out, did not want to cooperate but got it. I inspected the holes...forgot to take a picture , will post them tomorrow. Strange, front and rear had one perfect hole but one in front and rear seems slightly oval. There wasn't any adhesive on the C-beam as I expected, cleaned it anyway. C-Beam plates aren't here yet anyway nor are the motor mounts . Gonna media blast the beam tomorrow. I think I am going to risk doing duplicate work and put it all back together with the new motor mounts and C-beam and take it for a test drive (headers only-gonna be loud) and see if it still pops out of third when re-engaging the throttle. It it was driveline movement, it would save me 4K instead sending it to Bill. I have never heard of a bad black tag at 29k miles . __________________ Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454

12-05-2020	#12
tccrab Join Date: Oct 2004 Location: Folsom CA Posts: 1,648	Re: C-Beam picture included - Does this look like signs of C-Beam movement or normal? I have a 9000 mile black tag that came out of my '90 with bad synchros in third. The previous owner loved to practice his speed shifting and was really good with first to second. Not so good with second to third. By the time I got the car with 9300 miles on her, third gear was pretty much shot and second gear was going in the same direction. It would shift ok if you would pretend it was your grandmothers car, but if you wanted to shift it like Speed Racer you were out of luck. I found a blue label Bill Budreau rebuild, and have never looked back. 'Crabs __________________ TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B]

12-05-2020	#13
32valvZ Join Date: Nov 2007 Location: Sunshine State Posts: 1,071	Re: C-Beam picture included - Does this look like signs of C-Beam movement or normal? Popping out of gear on deceleration in any gear is pretty much a tell tale sign of bad synchros... ... __________________ [B]1990 #2815[/B] [COLOR="Red"][B]Red/Red[/B][/COLOR] Ported Plenum & IH (by Pete) Haibeck Chip Rebuilt FPR (by Phil) FIC Injectors Watson LT Headers 3" Stainless Works exhaust Lingenfelter Open Air Lid Bill B Built Transmission Shifter & C Beam Plates [FONT=Impact][COLOR=red]1992 [COLOR=black]#[/COLOR] 091[/COLOR][/FONT] [FONT=Impact][COLOR=#ff0000]Red/[COLOR=silver]Gray[/COLOR][/COLOR][/FONT] [B]SOLD[/B]

12-06-2020	#14
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,107	Re: C-Beam picture included - Does this look like signs of C-Beam movement or normal? Ok....consider my optimistic bubble burst , guess trans will go to Bill but I think I must do a test drive after the motor mounts and c beam plates just for peace of mind, 4K is hard to part with with Covid and Christmas Sent from my iPhone using ZR-1 Net Registry __________________ Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454