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 1Likes
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1
Post By ERA174
07-16-2021, 08:05 AM
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CC Member
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Join Date: Feb 2001
Location: BRADENTON,
FL
Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
Posts: 1,396
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Not Ranked
toploader shift problem
Some time ago, when shifting from 2nd to 3rd, it wouldn't go into third, it was like the shifter hit a brick wall, no grinding,just like the gear was locked out.
I did the shift alignment, no discrepancies noted, but now it does it more frequently.
Have a call in to David Key, no response yet.
Ted
__________________
"When Injustice becomes Law,
Rebellion becomes Duty." T. Jefferson
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07-17-2021, 08:34 AM
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CC Member
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Join Date: Apr 1999
Location: cleveland,
OH
Cobra Make, Engine: CSX4000, 427
Posts: 1,999
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Not Ranked
When the toploader was installed, was it new, rebuilt, or used. My first guess is that it is a synchronizer issue. Sometimes, the clutch is not disengaged completely.
__________________
"After jumping into an early lead, Miles pitted for no reason. He let the entire field go by before re-entering the race. The crowd was jumping up and down as he stunned the Chevrolet drivers by easily passing the entire field to finish second behind MacDonald's other team Cobra. The Corvette people were completely demoralized."
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07-17-2021, 10:20 AM
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CC Member
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Join Date: Feb 2001
Location: BRADENTON,
FL
Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
Posts: 1,396
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Not Ranked
Antony; Thanks for the input. Tranny has about 4k mi since rebuild.
I think youre on target with the clutch, That's what I just replaced ? reworked.
Can't check it right now, as I'm re-jetting the webers, and don't have the new jets yet. I'll
post after next drive.
Ted
__________________
"When Injustice becomes Law,
Rebellion becomes Duty." T. Jefferson
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07-18-2021, 04:54 AM
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CC Member
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Join Date: Apr 2009
Location: Little Rock area,
AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,483
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Not Ranked
Will it do this sitting still in your driveway? If so I would Jack it up and replicate the blocking, shut it off, climb underneath and pull the rod off the transmission lever and see if you can manually move the transmission lever into 3rd. If it goes into 3rd OK then it’s probably a shifter issue, but if not then probably an internal transmission issue. The interlock rods and shift detents are another potential area but if it was rebuilt and shifted fine for 4K miles I would think they are OK.
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07-18-2021, 12:01 PM
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CC Member
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Join Date: Jun 2007
Location: Caldwell,
NJ
Cobra Make, Engine: ERA 427, 482ci sideoiler
Posts: 138
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Not Ranked
Testing clutch disengagement: With the vehicle stopped, transmission in neutral and the engine running depress the clutch, wait a few seconds, then put the transmission in reverse. Reverse doesn't have a syncro like the forward gears. If you feel the gears grinding/hitting before they engage then your clutch is not fully disengaging. Also, check the bushings where the shifter rods connect to the shift arms, a worn/missing bushing could cause interlock issues, even if the shifter is aligned properly. Hope it's an easy fix.
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07-20-2021, 04:51 AM
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CC Member
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Join Date: Feb 2001
Location: BRADENTON,
FL
Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
Posts: 1,396
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Not Ranked
Did an adjustment on the slave push rod, shifting seems ok now.
Thanks for the help.
Ted
__________________
"When Injustice becomes Law,
Rebellion becomes Duty." T. Jefferson
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