C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

No 1-2 Accumulator spring

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Old Jun 5, 2005 | 01:16 AM
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Default No 1-2 Accumulator spring

I just finished disassembly on my 95 4L60E (3-4 clutch pack and input gear shot,) and had no 1-2 Accumulator spring. What's the story?

Jay
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Old Jun 5, 2005 | 02:53 AM
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In some shift kits they replace the spring with like a shim to keep it in a particular position? I think B&M does that...

Hope this helps...

Mo
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Old Jun 5, 2005 | 12:10 PM
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hmmmm, thanks Mo. There was nothing between the separator plate and the 1-2 accumulator piston. The piston was even well up into the accumulator, so I'm at a loss. The only other sign that something wasn't as left by the factory was an extra check ball. I guess I'll have to verify the valve body passages against the manul to see what's going on. I even ordered the transgo shift kit along with my rebuild parts. Ahh, the joys of buying a used car...
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Old Jun 5, 2005 | 01:35 PM
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Mo, are you thinking of the 1-2 valve. The kits can use a "shim" for that, but I haven't seen it on the accumulator.

Can't say on the 4l60, but the 700 had a spring. Something seems off. Good luck with the rebuild.
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Old Jun 5, 2005 | 04:12 PM
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Sounds like someone tried to firm up the 1-2 accumulator. Thats a old hot rodder trick, along with drill and tapping the passage that fills it and replacing it with a screw.
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Old Jun 5, 2005 | 06:49 PM
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Anti venom,

Nods, I know what you mean... in the valve body .

I remember installing I think it was a B&M kit ( in my 89 when I had it) and it had 2 sleeves that slide over the shaft the accumulator rides on, and the sleeve would hold the accumulator in a fixed position as Alvin was suggesting... One above the separator plate the other below actually replacing the springs. I had to file the length to besure they were not too long...

But it sounds like that is not the case...

so I agree something is certainly amiss... the goosd thing is that the TRansgo kits include the missing springs for the accumulator...
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Old Jun 7, 2005 | 05:29 AM
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In all circumstances, you want to have a spring in the 2nd gear accumulator. This is part of the 2nd gear accumulator assembly, and has very much to do with the quality of the 1-2 shift at part throttle, & at WOT.
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Old Jun 7, 2005 | 09:05 PM
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Well, I just received my soft parts, frictions and steels, Super Servo (1-2), converter, beast shell, 5 pinion rear planetary, kevlar band, 13 vane pump upgrade kit, servo release capsule/ check ball, bushing kit, thrust washer kit, bearing kit, separator plate and transgo shift kit!

I'm excited.

Just waiting on a new input gear, upgraded sprag, and lo and reverse clutch spring asm. and the rebuild commences.

What fun

Thanks for all the input.

Jay
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