changed transmision fluid now its not pumping
Thread Starter
|
New User
Joined: Feb 2004
Posts: 9
Likes: 0
changed transmision fluid now its not pumping
just got done replaceing 302 to a 351w on my 86 f250..when we finnished, tranny had nothing to it...ie no gears..we changed filter..still nothing and we cant get the tranny to pump fluid through the lines to the cooler..we made sure tc was all the way back and blew out lines to cooler..how can we get the tc to fill without dropping the trans? and if we have to drop trans, besides reverifying tc all the way in what can we do as simple solutions. thanks ps if any questions about the swap ill try to help
Thread Starter
|
New User
Joined: Feb 2004
Posts: 9
Likes: 0
ok here's the deal. after takeing out the tranny(again original that came with truck and 302 engine) we dissasembled the tranny and found that the pump in the tranny was worn around the gears against the cast part of the pump. reason? well the 302 flex, even though had the same amount of teeth as the 92 351w engine i bought, there was a slight diffrence. the 351w flex concaved out approx 1/4 inch further towards the tranny. which forced the original torque converter with the 302 to be pressed into the casting front of the pump and forceing the gears back into the rear casting of the pump and wearing grooves thus no pressure. tomorrow we go hunting for a trans front pump. thanks for replying this is again one of the many diffrences between the two engines and one of the many storys i could tell about the swap and the things that went right and not.
Logistics Pro
Joined: Jan 2002
Posts: 3,739
Likes: 3
From: GANS
Trending Topics
Thread Starter
|
New User
Joined: Feb 2004
Posts: 9
Likes: 0
well to remove the tranny took a period of time it all depends on the resources you have and if you have anyone helping. once the tranny is out (yes we also removed the transfer case to make it easyer to manipulate) it only takes 7 bolts on that tranny to remove the front pump (once bolts out insert two longer bolts to grab hold and pull out) the replacement is more or less the same with simply sliding the new pump in and tightening down the bolts alternatly to slowly work it in. all in all dealing with just the time for the pump mabey 1/2 hour total the rest well that takes more time
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Thread Starter
|
New User
Joined: Feb 2004
Posts: 9
Likes: 0
ok new problem now everything is in i have plenty of pressure, forward and reverse but it will not shift from first. i have tried what the transmission dealer recomended of adjusting the kick down (tv) cable to have 1/16th slack at throtle...(also acording to repair manual) but they also recomended that the govener may be laquered up (due to no tranny fluid for 2 days while it was apart) and to run the truck up to 25 mph and put it into park and let the tranny slow the truck down then long before it reaches 0 put back into drive and this process was to "free up the govener)...well doing this caused no wheel lock up or tranny lock up only slight whine in tranny. but still did not get the tranny to start shifting...now i have a tranny repair manual and now doing research. any tips from those with expericence would help
Thread Starter
|
New User
Joined: Feb 2004
Posts: 9
Likes: 0
no vaucum modulator just a breather tube on this aod and bought a haynes tranns rebuild book for step by step. most likely its either the tv valve not adusted right or moving or govener valve locked up takeing today off will report exactly once we diagnose and fix tomorrow
Thread Starter
|
New User
Joined: Feb 2004
Posts: 9
Likes: 0
ok ...heres the duh...when i put a new filter in i managed to not put the square gasket on the new filter. thus causing it to suck air and foam.. also the tv valve (normaly with my connection) has a self adjusting spring for the tv cable...well doing as instructed does not set it at best for smooth shifting (once it started shifting and few drives to work itself out of all the air) and late kick down...so we have given it minor adjustments from there...tranny shop recomends with aod to set tv valve at 30 lbs of pressure at high output line...but we dont have pressure gage so doing minor adjustments will work too. no i didnt swap tranny..this is tran that was in the vehicle when i bought it...but it did have trans work prior to my purchase but can not ask prior owner what specificly was done to it
Thread
Thread Starter
Forum
Replies
Last Post
1994F2507.3L
1994.5 - 1997 7.3L Power Stroke Diesel
31
Sep 19, 2014 12:24 PM
F350_Hauler
1994.5 - 1997 7.3L Power Stroke Diesel
3
Jul 3, 2007 09:37 PM