another power steering problem
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Lead Driver
Joined: Oct 2005
Posts: 6,129
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From: Ponca City, OK
another power steering problem
ok a little back ground first last summer i put in a jy engine in my 79 and just used the jy pump that was on it. it didn't work but i was a ways from driving so didnt matter. i'm ready to start driving it now so i swaped a pump i had from a 79 pickup i scraped. i know the pump was good 2 or 3 years ago when i last drove the truck.
now the problem, the steering works turning to the right but not the left. do we think the "new" pump could be bad also or could this be a gearbox problem, if so i do have the box from the pickup i could swap in. any info would be great before i start throwing more $$ at the problem. thanks
now the problem, the steering works turning to the right but not the left. do we think the "new" pump could be bad also or could this be a gearbox problem, if so i do have the box from the pickup i could swap in. any info would be great before i start throwing more $$ at the problem. thanks
Fleet Mechanic
Joined: Sep 2003
Posts: 1,716
Likes: 15
One other thought... before swapping out the steering gearbox, I'd make absolutely certain that there isn't air trapped on one side of the piston. It is unlikely to be the problem, but is so easy to be certain:
Jack the front end up so both front wheels clear the ground. Start it, and turn steering wheel slowly from stop-to-stop back and forth. Maybe 10-15 cycles worth of slow full turns. This should purge any air out. Keep reservoir full.
Encho has an excellent write-up with pics on the Ford Integral steering box. Your box may not be exactly the same, but it will give you a good idea what is inside. Most likely a seal has torn/gone bad on yours.
https://www.ford-trucks.com/forums/1...x-rebuild.html
Jack the front end up so both front wheels clear the ground. Start it, and turn steering wheel slowly from stop-to-stop back and forth. Maybe 10-15 cycles worth of slow full turns. This should purge any air out. Keep reservoir full.
Encho has an excellent write-up with pics on the Ford Integral steering box. Your box may not be exactly the same, but it will give you a good idea what is inside. Most likely a seal has torn/gone bad on yours.
https://www.ford-trucks.com/forums/1...x-rebuild.html
Post Fiend
Joined: Nov 2011
Posts: 8,908
Likes: 1
From: Algona, Washington
One other thought... before swapping out the steering gearbox, I'd make absolutely certain that there isn't air trapped on one side of the piston. It is unlikely to be the problem, but is so easy to be certain:
Jack the front end up so both front wheels clear the ground. Start it, and turn steering wheel slowly from stop-to-stop back and forth. Maybe 10-15 cycles worth of slow full turns. This should purge any air out. Keep reservoir full.
Encho has an excellent write-up with pics on the Ford Integral steering box. Your box may not be exactly the same, but it will give you a good idea what is inside. Most likely a seal has torn/gone bad on yours.
https://www.ford-trucks.com/forums/1...x-rebuild.html
Jack the front end up so both front wheels clear the ground. Start it, and turn steering wheel slowly from stop-to-stop back and forth. Maybe 10-15 cycles worth of slow full turns. This should purge any air out. Keep reservoir full.
Encho has an excellent write-up with pics on the Ford Integral steering box. Your box may not be exactly the same, but it will give you a good idea what is inside. Most likely a seal has torn/gone bad on yours.
https://www.ford-trucks.com/forums/1...x-rebuild.html
The gearbox could be the issue too, do you still have the one from the truck you got the pump out of? On top of everything, I also would recommend the Saginaw pump swap. It requires some mount modifications but in the long run it's worth it. They are pretty solid pumps.
Thread Starter
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Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
yea i would like to do the saginaw swap but there isn't the best selection at the jy's around here so it may be tough to find one, is there a list somewhere all the modles they came on (ford, chevy, whatever) to make the hunt easier.
Torky thanks for the tip if i get time today i will try to bleed the pump i hope that fixes it other wise i'm swaping boxes. i knew saving all those parts was worth the extra work
Torky thanks for the tip if i get time today i will try to bleed the pump i hope that fixes it other wise i'm swaping boxes. i knew saving all those parts was worth the extra work
Post Fiend
Joined: Nov 2011
Posts: 8,908
Likes: 1
From: Algona, Washington
I had a general list somewhere, pretty much try to find an early 80s econoline van that has one. Rob the pump, the lines, the bracktry *everything* that way you have plenty to work with. The biggest thing is to make sure the pulley shaft doesn't have too much play in it and that the pulley is a V belt not serpentine. Also if find one that has fluid in it and the fluid looks cleanish, that's a good sign.
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