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727 acumulator spring?? #458839 09/04/09 05:36 AM 09/04/09 05:36 AM
Joined: Feb 2007 Posts: 316 Coolville, Ohio L Lew OP enthusiast
Lew OP enthusiast L Joined: Feb 2007 Posts: 316 Coolville, Ohio	some say take it out, some say leave it in, what is its job?

Re: 727 acumulator spring?? [Re: Lew] #458840 09/04/09 07:39 AM 09/04/09 07:39 AM
Joined: Jan 2005 Posts: 716 Indiana 6 65dragnet super stock
65dragnet super stock 6 Joined: Jan 2005 Posts: 716 Indiana	It cushions the 1 to 2 shift. Take it out and shim the piston up , and go chirp some tires. E. Williams 65 Coronet 500 3400lbs w/d, 446, Indy EZ'S, A&A transbrake,Comp 650 lift cam, 6.50 @ 105 mph 1/8th 10.25 @ 130mph 1/4

Re: 727 acumulator spring?? [Re: Lew] #458841 09/04/09 07:43 AM 09/04/09 07:43 AM
Joined: Jan 2003 Posts: 276 Mid west G Gearhead383 enthusiast
Gearhead383 enthusiast G Joined: Jan 2003 Posts: 276 Mid west	What you are doing or want out of the transmission? Is this a racecar or a daily driver? Removing the spring will allow harder shifts. I did this for a guy who had an everyday street car. At first he thought it was great. About a month later he asked me to tone it down.

Re: 727 acumulator spring?? [Re: Gearhead383] #458842 09/04/09 09:32 AM 09/04/09 09:32 AM
Joined: Jan 2003 Posts: 74,978 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,978 U.S.S.A.	Quote: What you are doing or want out of the transmission? Is this a racecar or a daily driver? Removing the spring will allow harder shifts. I did this for a guy who had an everyday street car. At first he thought it was great. About a month later he asked me to tone it down. I had it out of my trans with a billet accumulator piston that used double seal rings for 110k miles in my daily driver Diesel pick up , it was BRUTAL , filing rattling shifts , I dropped the VB the other day , put it back and the truck its actually a pleasure to drive. HARD shifts do NOT actually equal GOOD shifts ...

Re: 727 acumulator spring?? [Re: Lew] #458843 09/04/09 09:36 AM 09/04/09 09:36 AM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	I think w/ Man valve bodies it tells you to remove it. [IMG]http://i66.tinypic.com/pui5j.jpg[/IMG] Coming soon!!!!

Re: 727 acumulator spring?? [Re: Mr.Yuck] #458844 09/04/09 12:45 PM 09/04/09 12:45 PM
Joined: Nov 2006 Posts: 1,456 oklahoma F forphorty pro stock
forphorty pro stock F Joined: Nov 2006 Posts: 1,456 oklahoma	Quote: I think w/ Man valve bodies it tells you to remove it. yep, Turbo Action MVB instructions tell you to remove it. I think most of the shift kits say the same.

Re: 727 acumulator spring?? [Re: forphorty] #458845 09/04/09 12:54 PM 09/04/09 12:54 PM
Joined: Jan 2003 Posts: 2,763 Walton's Mountain, Pa Steve1118 master
Steve1118 master Joined: Jan 2003 Posts: 2,763 Walton's Mountain, Pa	Leave it out. "Old age and treachery trumps youth and enthusiasm, every time!" East Central Director / Chrysler Power Magazine www.reasbeckracing.webs.com

Re: 727 acumulator spring?? [Re: forphorty] #458846 09/04/09 01:14 PM 09/04/09 01:14 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	Quote: Quote: I think w/ Man valve bodies it tells you to remove it. yep, Turbo Action MVB instructions tell you to remove it. I think most of the shift kits say the same. They leave you the option - in or out depending on street or race. Fastest 300

Re: 727 acumulator spring?? [Re: Lew] #458847 09/04/09 02:26 PM 09/04/09 02:26 PM
Joined: Jan 2003 Posts: 1,812 Portsmouth, VA D DusterW2 top fuel
DusterW2 top fuel D Joined: Jan 2003 Posts: 1,812 Portsmouth, VA	The accumulator spring located between the accumulator piston and the valvebody cushions the application of the forward clutch. It does not cushion the 1-2 shift. Check the hydraulic diagrams. However, if you remove the spring AND install a blocker rod between the top of the accumulator bore and the piston to space down the piston, this WILL firm the 1-2 shift. Most shift kits say take it out as with RMVBs. When using a Griner RMVB or transbrake, the accumulator piston can be removed along with the spring. John

Re: 727 acumulator spring?? [Re: 65dragnet] #458848 09/04/09 04:20 PM 09/04/09 04:20 PM
Joined: Jan 2003 Posts: 25,750 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,750 Rio Linda, CA	Quote: It cushions the 1 to 2 shift. Oldest myth in the Mopar world, no matter how many times it's repeated and by whom it's still a myth. There are only two logical reasons to remove the outer accumulator spring: 1) To install a blocker rod (blocking the piston is the ONLY accumulator mod that will firm up the 1-2 shift) 2) To shave off 2 ounces of weight Leaving it in has the benefit of staving off a rear clutch failure. The INTERNET, the MISinformation superhighway

Re: 727 acumulator spring?? [Re: John_Kunkel] #458849 09/04/09 05:19 PM 09/04/09 05:19 PM
Joined: Mar 2003 Posts: 15,478 the boonies aarcuda I Live Here
aarcuda I Live Here Joined: Mar 2003 Posts: 15,478 the boonies	mine was removed years ago because thats what the shift kit told me to do. but theres no blocker rod in there. I believe the cheetah manual/automatic instructions said to leave the spring out as well. dont think it said anything about blocking it though. so i dont have a spring in mine now.

Re: 727 acumulator spring?? [Re: John_Kunkel] #458850 09/04/09 05:37 PM 09/04/09 05:37 PM
Joined: Jan 2003 Posts: 74,978 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,978 U.S.S.A.	Quote: Quote: It cushions the 1 to 2 shift. Oldest myth in the Mopar world, no matter how many times it's repeated and by whom it's still a myth. There are only two logical reasons to remove the outer accumulator spring: 1) To install a blocker rod (blocking the piston is the ONLY accumulator mod that will firm up the 1-2 shift) 2) To shave off 2 ounces of weight Leaving it in has the benefit of staving off a rear clutch failure. John , does it have an effect on the 2-3 shift ? That's the one that was the hardest hitting shift in my truck , BUT the clip that holds the boost valve on top of the VB was also broken and the valve was stuck in the open position , so I'm not really sure what softened my 2-3 ??

Re: 727 acumulator spring?? [Re: JohnRR] #458851 09/04/09 08:06 PM 09/04/09 08:06 PM
Joined: May 2003 Posts: 6,561 Downtown Roebuck Ont Twostick Still wishing...
Twostick Still wishing... Joined: May 2003 Posts: 6,561 Downtown Roebuck Ont	How long is the blocker rod and what diameter? Kevin

Re: 727 acumulator spring?? [Re: Twostick] #458852 09/04/09 10:36 PM 09/04/09 10:36 PM
Joined: Jan 2003 Posts: 1,812 Portsmouth, VA D DusterW2 top fuel
DusterW2 top fuel D Joined: Jan 2003 Posts: 1,812 Portsmouth, VA	I use a 1/2" round stock about 3" long. Trial fit the valvebody on the case to make sure that the VB sits flush with the piston and blocker rod installed. If it does not, shorten the rod a little. Some people use aluminum tubing or solid round stock. John

Re: 727 acumulator spring?? [Re: DusterW2] #458853 09/04/09 11:12 PM 09/04/09 11:12 PM
Joined: Jan 2005 Posts: 716 Indiana 6 65dragnet super stock
65dragnet super stock 6 Joined: Jan 2005 Posts: 716 Indiana	use a solid piece, tubing will mushroom and or bend if you don't get the length right. the idea is to keep the piston from slamming up and down after spring removal E. Williams 65 Coronet 500 3400lbs w/d, 446, Indy EZ'S, A&A transbrake,Comp 650 lift cam, 6.50 @ 105 mph 1/8th 10.25 @ 130mph 1/4

Re: 727 acumulator spring?? [Re: Lew] #458854 09/05/09 06:19 AM 09/05/09 06:19 AM
Joined: Feb 2007 Posts: 316 Coolville, Ohio L Lew OP enthusiast
Lew OP enthusiast L Joined: Feb 2007 Posts: 316 Coolville, Ohio	Quote: some say take it out, some say leave it in, what is its job? thanks for all the repleys, good info, think ill leave it out.

Re: 727 acumulator spring?? [Re: Lew] #458855 09/05/09 09:41 AM 09/05/09 09:41 AM
Joined: Mar 2003 Posts: 15,478 the boonies aarcuda I Live Here
aarcuda I Live Here Joined: Mar 2003 Posts: 15,478 the boonies	Quote: Quote: some say take it out, some say leave it in, what is its job? thanks for all the repleys, good info, think ill leave it out. are you going to block it too? or just leave it floating?

Re: 727 acumulator spring?? [Re: JohnRR] #458856 09/05/09 08:02 PM 09/05/09 08:02 PM
Joined: Jan 2003 Posts: 25,750 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,750 Rio Linda, CA	Quote: John , does it have an effect on the 2-3 shift ? Nope, after the 1-2 shift is complete the accumulator piston remains at the end of its bore in the case during the 2-3 shift and doesn't leave there until the trans downshifts to 1st. The INTERNET, the MISinformation superhighway

Re: 727 acumulator spring?? [Re: John_Kunkel] #458857 09/06/09 09:48 AM 09/06/09 09:48 AM
Joined: Jan 2003 Posts: 74,978 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,978 U.S.S.A.	Quote: Quote: John , does it have an effect on the 2-3 shift ? Nope, after the 1-2 shift is complete the accumulator piston remains at the end of its bore in the case during the 2-3 shift and doesn't leave there until the trans downshifts to 1st. Thanks , must have been something with that boost valve bracket being broken .

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