Eliminating 3-4 accumulator....good or bad????

[PaulRV6]

Just wondering if I should turn the spring around on the 3-4 accumulator to take it out of the system. What are the benefits or downsides to doing this? This is a stock GN tranny with a stock D5 converter. Any suggestions would be apprciated.

paul

 

[SSedan64]

What do you think turning the 3-4 Accumulator Spring around will do?

 

[mikestertwo]

Are you talking about flipping the piston over and putting the spring on the other side?

 

[challengermike]

Just take the spring out then,once it strokes it will just stay there.Its just going to shift firmer into 4th.

 

[PaulRV6]

Sorry about the explanation, but I did mean putting the spring on the other side of the piston.
No downsides except a more abrupt 4th gear shift? Thanks

paul

 

[mikestertwo]

Sorry about the explanation, but I did mean putting the spring on the other side of the piston.
No downsides except a more abrupt 4th gear shift? Thanks

paul

Actually I think it will soften the shift. A lot of 200's came that way from the factory.

 

[PaulRV6]

I definately don't want to soften the shift. Are you sure about that?

paul

 

[mikestertwo]

I definately don't want to soften the shift. Are you sure about that?

paul

Yes. If you put the spring in the bore first then put the piston in it will soften the shift. If you put the piston in the bore first then put the spring in it will firm up the shift.

 

[challengermike]

Yes. If you put the spring in the bore first then put the piston in it will soften the shift. If you put the piston in the bore first then put the spring in it will firm up the shift.

I think the words are just getting flipped around here.If you put the spring and piston the stock way it will cushion the shift making it shofter,now if you flip it over it will be bottomed in the bore the way it would be if it was already applyed making the shift firmer.

 

[mikestertwo]

I think the words are just getting flipped around here.If you put the spring and piston the stock way it will cushion the shift making it shofter,now if you flip it over it will be bottomed in the bore the way it would be if it was already applyed making the shift firmer.

It depends what you mean by "stock". A stock BRF and other stock performance programmed transmissions put the piston in the bore first then the spring. Transmissions from the factory for non-performance applications put the spring in first then the piston. I have seen it both ways in stock transmissions.

 

[PaulRV6]

Per the factory service manual the piston goes into the case first then the spring and plate on top of that.
Sooo if I swap it around (put spring in first then piston) the 3-4 shift will get firmer or softer?
And the last question, what if I take the spring out altogether? Does the 3-4 shift get firmer yet or softer? If it's firmer, will it be too firm to break something? Thanks for the help.

paul

 

[PaulRV6]

Any further responses on this? Thanks everyone.

paul

 

[mikestertwo]

If you take the spring out it will get softer. If you flip the piston and spring over it will get softer. The only way to make it firmer is put a stronger spring in, put a piston travel limit bushing in, do both, increase accumulator oil pressure, do all three or any combination of the two. It depends on how firm you want to make it.