Sector Shaft Reinstallation

truckfarmer49 · Feb 6, 2019

Feels like a dumb problem to ask about, but having a lot of trouble getting a sector shaft (item #11) reinstalled in a power steering gear box.

Got it lined up and most of the way in (gears were meshed properly) but can't seem to make it move the last couple of inches forward.

Been tapping hard with a hammer and turning the steering wheel back and forth, gears turning nicely with each other. Any tips? (ignore circled parts on diagram, see item #11)

Steve@Advance · Feb 6, 2019

Kinda hard to say without being there...

Something to check, is bearing #12 fully seated and the needles in place?

The ball screw piston depends on the gear to keep it rotated properly, is it straight?

Was anything replaced? Did you compare carefully and test fit? Aftermarket parts are notorious for being machined wrong.

grizz02 · Feb 6, 2019

shove it in backwards from the other side to see if it goes in , leave steering shaft out , if it goes in , by itself there's a problem in the meshing somewhere

truckfarmer49 · Feb 6, 2019

Thank you for the tips Steve, appreciate it.

Needle bearing is properly in place. Nothing was replaced except a few seals, so no new machined parts to get stuck.

Maybe I just need to be striking it harder, but it seemed to come out relatively easy when I first took it all apart...

gab · Feb 6, 2019

So you didn't have the steering shaft out at all then, because I think that piece above 18 is probably full of black and silver balls and you don't want them falling out.

Steve@Advance · Feb 6, 2019

Is it possible the seal lip is catching the end of the shaft?

Sometimes you have to wrap the sharp edge with tape or reach beside the shaft and push the lip back with a feeler gauge.

jimg.allentown · Feb 6, 2019

Your problem may be that the nut, item #18 is "tipping" as you try to put the sector in. That item is full of black and silver balls, and if you remove the worm (can't see the number) then the balls will need to be restacked and you will need a dummy shaft to reinstall it into the housing. Turning the steering wheel only moves the worm gear, and does not rock item #18. As #18 tips, it binds up against the sector and the more you push or hit it, the tighter it gets. You need to position #18 so that when it rotates, it comes into line with the sector shaft.

Back in the old days, I overhauled many of those steering gears.

Sector Shaft Reinstallation

truckfarmer49

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Steve@Advance

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grizz02

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truckfarmer49

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gab

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Steve@Advance

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jimg.allentown

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