Auto Trans shifting question

Area for General FSJ related chat.
Post Reply

Topic author
mhubbard
Posts: 80
Joined: Tue Mar 07, 2017 8:43 am

Auto Trans shifting question

Post by mhubbard »

So I just had my engine rebuilt and it sounds terrific!!! One question tho: I am experiencing late shifting to both second and third gears. No slipping, and the fluid looks good and where it should be. Any clue as to what is happening? Shifting to second isn't too bad, but shifting to third seems to take a lot longer than it should. I actually like the longer pulls in each gear (1 and 2) but would rather it shift "right".

btw, it is a 360 mated to a 727

Thanks!

Cheapthrills
Posts: 632
Joined: Wed Nov 02, 2016 7:09 am
Location: Sedalia colorado

Re: Auto Trans shifting question

Post by Cheapthrills »

Sounds like The kick down linkage is out of adjustment.
Should be one bolt to loosen the clamp that holds the (adjustable slide fork?) With white plastic bushing in it attached to carb linkage.

Adjust in small amounts till it feels right. Obviously if it doesn't improve or it gets worse repeat adjustment in oposit direction.



Sent from my SM-N920V using Tapatalk

Topic author
mhubbard
Posts: 80
Joined: Tue Mar 07, 2017 8:43 am

Re: Auto Trans shifting question

Post by mhubbard »

Thanks! So in the meantime while I'm breaking in the rebuilt engine, am I doing any harm to either engine or trans by driving it with the delayed shifting? It doesn't have a tach, but I doubt it is over-revving.

Topic author
mhubbard
Posts: 80
Joined: Tue Mar 07, 2017 8:43 am

Re: Auto Trans shifting question

Post by mhubbard »

by over-revving, I mean revving beyond a safe level.

Cheapthrills
Posts: 632
Joined: Wed Nov 02, 2016 7:09 am
Location: Sedalia colorado

Re: Auto Trans shifting question

Post by Cheapthrills »

Try to keep it below 2500rs for first 3000 miles.... CHANGE OIL AFTER 500 MILES

Sent from my SM-N920V using Tapatalk

letank
Posts: 4009
Joined: Wed Oct 03, 2012 9:16 pm
Location: SF bay area

Re: Auto Trans shifting question

Post by letank »

late shifting such as 15mph to 2nd and 30ish to 3rd?

Make sure that the spring is in the right position -need to find the pict- the post is about kickdown, but has the right drawing

Image

http://www.fsjnetwork.com/forum/viewtopic.php?t=9369

or

Image

http://fsjnetwork.com/forum/viewtopic.php?t=4688

Otherwise it take is to loosen the adjuster at the carb, pull on the rod all the way -throttle opened WOT- and retighten the adjuster.

here:

http://www.fsjnetwork.com/forum/viewtopic.php?t=5406

http://www.ifsja.org/tech/transmission/727adj.html
Michel
74 wag (349 Kmiles... parked, next step is a rust free body)
85 Gwag (229 Kmiles... the running test lab)

will e
Posts: 5096
Joined: Sat Aug 18, 2012 8:21 am

Re: Auto Trans shifting question

Post by will e »

For the 727 that is not a kickdown, it is a TV rod. Proper adjustment is important.
81 Waggy 'WILL E' Retired
82 Cherokee WT - SOA/SF/high steer/Alcan springs/agr box/Borgeson steering shaft/AMC 401/performer/holley TA/HEI/BeCool/727/ALTAS (2.0/2.72/5.44)/D60 Snofighter(Yukon Zip,hubs,stubs,4.56)/14 Bolt (FF,BF shave, Discs, ARB,Artec Truss)/MTR 37X12.5/Corbeau XRS Baja & 5 point retractable harness/Hella Aux lights/tuffy console/killer32 sliders/Evil Twin bumpers, rack and roll cage/WARN 8000/TT Fabworks steering brace/dual batts/custom TC skid plate/ARB fridge

rocklaurence
Vendor
Posts: 2565
Joined: Sat Mar 30, 2013 6:53 am

Re: Auto Trans shifting question

Post by rocklaurence »

Yeah Guys, I'm not looking to High Jack the thread but I have the opposite issue with the 1-2 shift. It shifts out of 1 st gear too soon and wont return to 1st until I stop. I installed a Trans-Go shift kit and adjusted the TV for a good 2-3 shift under load but haven't been able to get the 1-2 shift correct. It had the same issue before the TG was installed. Is there a spring or adjustment for the 1-2?

Topic author
mhubbard
Posts: 80
Joined: Tue Mar 07, 2017 8:43 am

Re: Auto Trans shifting question

Post by mhubbard »

Thanks fellas, I've scheduled the Jeep to go to the mechanic who did the buttoning up process. I think this is covered stuff since they obviously put it all back together again.

Told them that it is either a spring or rod (as debated above)... they should know what to do.

Topic author
mhubbard
Posts: 80
Joined: Tue Mar 07, 2017 8:43 am

Re: Auto Trans shifting question

Post by mhubbard »

letank wrote:late shifting such as 15mph to 2nd and 30ish to 3rd?

Make sure that the spring is in the right position -need to find the pict- the post is about kickdown, but has the right drawing

Image

http://www.fsjnetwork.com/forum/viewtopic.php?t=9369

or

Image

http://fsjnetwork.com/forum/viewtopic.php?t=4688

Otherwise it take is to loosen the adjuster at the carb, pull on the rod all the way -throttle opened WOT- and retighten the adjuster.

here:

http://www.fsjnetwork.com/forum/viewtopic.php?t=5406

http://www.ifsja.org/tech/transmission/727adj.html
More like 20 to second and possibly 40-45 to third. Unable to really tell since my speedo is about 10 over (I estimate)

letank
Posts: 4009
Joined: Wed Oct 03, 2012 9:16 pm
Location: SF bay area

Re: Auto Trans shifting question

Post by letank »

mhubbard wrote:
More like 20 to second and possibly 40-45 to third. Unable to really tell since my speedo is about 10 over (I estimate)
Yes, check the spring... it happened to me... same numbers...
Michel
74 wag (349 Kmiles... parked, next step is a rust free body)
85 Gwag (229 Kmiles... the running test lab)

Topic author
mhubbard
Posts: 80
Joined: Tue Mar 07, 2017 8:43 am

Re: Auto Trans shifting question

Post by mhubbard »

Just a follow-up.... the kickdown was adjusted and you cannot even feel it shifting anymore. Butter.
Post Reply