How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Master Class Auto Your Own Question

Master Class Auto
Master Class Auto, ASE - Master Auto Technician
Category: Car
Satisfied Customers: 253
Experience:  20+ years, full time experience. Specialize in Diagnostics & Electrical
Type Your Car Question Here...
Master Class Auto is online now
A new question is answered every 9 seconds

2001 mazda B3000: rack and pinion steering device..cab..mounts..torque

Resolved Question:

i am replacing the rack and pinion steering device in my daughter's 2001 mazda B3000 cab plus pick up truck. Unbelieveably, one of the mounts on the rack along with a large chunk of the rack just snapped off while driving. even though the new rack came with installation directions, it did not come with any torque specifications. I purchased the correct Haynes repair manual, but it does not contain any instructions for replacing the rack, nor does in contain any torque specifications. could you please provide me with all torque requirements for the rack installation, and any other helpful hints you may have for this endeavor
Submitted: 4 years ago.
Category: Car
Expert:  Master Class Auto replied 4 years ago.
Hi,

Honestly - all the Rack and Pinion Units I've worked with, since the 1980's, have an aluminum housing. (can be a weak leak, but only if mistreated or in accident) And, some have rubber (wrap around) type "saddle bushings", if I may.. Or, sort of 'built in' ears/extenders that a rubber bushing slides into. When the LATTER style "mount" is used - the center of rubber bushing has steel (metal) insert for bolt to pass through. In either instance, over tightening the fastener (the actual bolt) should NOT in any way break the rack & pinion housing/case. If you have the latter of two mounts, the bolt would likely snap before anything, or simply dent/crush center (metal) sleeve/insert. OK? If on the other hand, you've got the rubber bushing (saddle type) that wrap around rack- and have a metal u-clamp over them with bolt, that can stress rack more then other mounting style... However, I still feel the bolt itself - or 'steel strap' over the rubber, would snap/break before fatiguing rack housing enough to break it. I do have a degree in basic engineering and am a 20+ years, an ASE Master Tech. I have only seen rack housings 'crack' when abused out of car - or in a car accident...

Let's assume the Rack was remanufactured.. What if it sustained impact damage during rebuild or shipping? May have been weakened before install. That's one idea.. Also, what if something is wrong on car end? Are we sure that nothing is frozen/worn/rusty or binding in suspension/steering? Take a peek to be safe.. Great time to "feel around" for binding is when Rack is OUT of car. Why? Because there is no tie rods connected or drag off Rack. You can sort of 'feel everything' out.. Lastly - You can safely torque those rack bolts by "feel" with a 3/8 ratchet - and do not go over board. If you prefer a spec - tighten to no more then 45 Ft Ibs. (as that's what I see here in my PC Shop Manual) Realize, for sake of comparison, a wheel lug torque is typically around double that. (80-100 Ft Lbs) We need not go nuts here.

Summary: I feel as though the rack and pinion you put in may have been slightly over-tightened.. well, perhaps.. But the stronger gut feeling here, is, the housing already suffered damage - either from an accident in original car, poor handling, or even during shipping.. A hair-line fracture for example, can come to haunt us later. If you need more info just ask.. Thanks!

Master Class

Master Class Auto, ASE - Master Auto Technician
Category: Car
Satisfied Customers: 253
Experience: 20+ years, full time experience. Specialize in Diagnostics & Electrical
Master Class Auto and 5 other Car Specialists are ready to help you
Customer: replied 4 years ago.
what I meant was that the rack which was originally in the vehicle had a mount that snapped off, not the new one I am installing. is there a torque value on the nuts/bolts for the tire rod sleeves or are they just tighten by feel?
Expert:  Master Class Auto replied 4 years ago.
Hi,

If the OEM Rack Housing, Snapped - I'd certainly check front end thoroughly. Check steering and suspension for wear or looseness. Make sure Spring Perches and Seats are in good shape and look shocks over as well. Very odd that can happen to a factory unit, unless an "impact" type damage was encountered. The Spec is 45 Ft Lbs in my manual but can also tighten by feel - IF USING 3/8 tools. (like a 3/8 ratchet) Do not over-do. When we do not wish to over-tighten a fastener - a single drop of the BLUE colored Loctite will never hurt - as it prevents bolts from walking out with time/vibration. And allows slightly "lighter" torque. OK? Thanks! :)

Best,
Master Class
Master Class Auto, ASE - Master Auto Technician
Category: Car
Satisfied Customers: 253
Experience: 20+ years, full time experience. Specialize in Diagnostics & Electrical
Master Class Auto and 5 other Car Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Last | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1596
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1311
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Tech

    Satisfied Customers:

    2367
    ASE Master Tech advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1906
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    942
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
  • http://ww2.justanswer.com/uploads/ST/Steve7654/2012-6-5_215929_japic800x660.64x64.jpg Steve's Avatar

    Steve

    Auto Service Technician

    Satisfied Customers:

    1980
    25+ yrs experience as a professional working technician; ASE L1 master technician