Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Replacing 190E Steering Gearbox ====== This article is a reference for replacing the steering gearbox on a 190E and may be applicable to similar models. Remanufactured steering gearboxes may be purchased from [[http://www.candmhydraulics.com|C & M Hydraulics]] based in Las Vegas, Nevada. <grid> <col sm="5"> ^ Time | 2 hours | ^ Cost | {{icon>dollar?color=#008000}} {{icon>dollar?color=#008000}} {{icon>dollar?color=#008000}} {{icon>dollar?color=#000000}} {{icon>dollar?color=#000000}} | ^ Difficulty | {{icon>cog?color=#0000ff}} {{icon>cog?color=#0000ff}} {{icon>cog?color=#000000}} {{icon>cog?color=#000000}} {{icon>cog?color=#000000}} | ^ Parts Required | Power steering fluid - 1 46 0001 \\ Power steering filter - 000 466 2104 \\ Steering coupler - 123 460 0210 \\ Renew locking hex nuts for tie rod ends - N913002010010 | ^ Applicable models | All 190Es with left hand drive | </col> </grid> ===== Special Tools ===== [[https://www.amazon.com/OTC-6297-Ball-Joint-Separator/dp/B0015PN010 | Balljoint separator]] - Used for removing the left tie rod and center drag link [[https://www.amazon.com/TEKTON-5685-4-Inch-3-Jaw-Puller/dp/B000NPUKAM | Gear puller]] - Removing pitman arm from steering gearbox output shaft [[https://www.amazon.com/Lumax-LX-1185-Black-Suction-Vinyl/dp/B000MD4YNY | Suction gun]] - Used to remove old power steering fluid [[https://www.amazon.com/Lisle-49200-Heavy-Duty-Plier/dp/B0009OR8ZM | Snap ring plier]] - Remove snap ring from pitman arm shaft ===== Power Steering Fluid ===== <grid> <col sm="4"> <thumbnail> {{ articles:mbpowersteeringfluid.jpg?300 }} <caption>**Part number**: 1 46 0001 \\ **Fill capacity**: 0.6 L \\ **Cost (as of 12/2015)**: $8.70 / unit </caption> </thumbnail> </col> </grid> ===== Procedure ===== ==== Preparation ==== - Lift front end of vehicle in the air ==== Siphon / Drain Old Fluid ==== <grid> <col sm="6"> - Remove power steering fluid reservoir cap - Remove filter - Filter is held in place by a 10mm nut under spring tension. Caution when removing this 10mm nut as it may spring out once unthreaded - Pull old filter out with pliers - Use a suction gun to remove old fluid. - Rotate steering wheel left and right to pump more fluid back into the reservoir. Remove as much as possible. </col> <col sm="3"> <thumbnail> {{ articles:suctionpowersteeringfluid.jpg?300 }} <caption>Suction gun on power steering fluid reservoir</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:removingpowersteeringfilter.jpg?300 }} <caption>Removing old power steering filter</caption> </thumbnail> </col> </grid> ==== Steering gearbox removal ==== - Center steering wheel and lock in place - Remove power steering hoses - Remove the hose closer to the engine via the 17mm nut - Remove the hose farther away via hose clamp farther down the line - You will be removing the steering gearbox with one hose left attached - Looking up the steering shaft input, there should be a 6mm bolt visible for the steering coupler. - A stubby 1/4" 6mm hex bit may be required to remove this - Remove drag link and driver side tie rod from pitman arm - 17mm nuts must be renewed - Remove driver side wheel to access 3x 15mm frame bolts inside the wheel well - Pull steering gearbox out with pitman arm attached - Remove pitman arm on the bench - Use snap ring plier to remove snap ring - Use gear puller if necessary - Take note on where the pitman arm is mounted on the output shaft. This affects front toe settings. \\ <grid> <col sm="3"> <thumbnail> {{ articles:steeringearbox17mm.jpg?300 }} <caption>17mm nut on steering gearbox</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:powersteeringhoseclamp.jpg?300 }} <caption>Power steering hose clamp </caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:6mmsteeringcouplerbolt.jpg?300 }} <caption>6mm steering coupler bolt</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:pitmanarm.jpg?300 }} <caption>Pitman arm detached from tie rod and drag link</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:steeringgearboxmountingbolts.jpg?300 }} <caption>Steering gearbox frame bolts in wheel well</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:steeringgearboxremoved.jpg?300 }} <caption>Steering gearbox removed from vehicle</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:pitmanarmsnapring.jpg?300 }} <caption>Removing pitman arm snap ring with pliers </caption> </thumbnail> </col> </grid> ==== Installation ==== - Install upper power steering hose with 19mm nut onto the replacement steering gearbox - Install pitman arm (this can be deferred to after the gearbox has been mounted in the car for easier gearbox installation) - Use centering mark to align and install - Tighten down at the same depth as previously measured - Install snap ring - Install steering coupler to steering shaft - Note the flat end on the steering shaft when installing the new coupler. This is where the bolt runs through - Install steering gearbox to coupler, do not turn steering wheel to install bolt yet - Install the 3 frame bolts in wheel well - Tighten power steering hoses - 17mm hose nut - Hose clamp - Install tie rod and drag link - Use new self locking hex nuts - Turn steering wheel and install other 6mm coupler bolt - Install power steering filter in reservoir - Fill power steering reservoir to capacity - Steering may need to be fully rotated a few times for correct fill \\ <grid> <col sm="3"> <thumbnail> {{ articles:19mmsteeringhose.jpg?300 }} <caption>19mm hose on steering gearbox</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:pitmanarmalignment.jpg?300 }} <caption>Pitman arm centering mark</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:steeringshaftflatspot.jpg?300 }} <caption>Steering shaft</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:steeringcouplerinstalled.jpg?300 }} <caption>Steering coupler installed</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:steeringgearboxinstalledtocoupler.jpg?300 }} <caption>Steering gearbox installed onto coupler</caption> </thumbnail> </col> <col sm="3"> <thumbnail> {{ articles:0004662104.jpg?300 }} <caption>Power steering filter</caption> </thumbnail> </col> </grid> articles/replacing_190e_steering_gearbox.txt Last modified: 2020/12/03 08:36by john5788