Maruti 800 DIY: Lower Control Arm


Thread Starter #1
Joined
Oct 7, 2015
Messages
374
Likes
461
Location
Bengaluru
Hello friends time for yet another DIY!I have been experiencing rough noisy ride on bad roads and my daughter complained that the car made far too much noise [:)].
For a while i have been contemplating to replace the lower control arm ball joint as it had been damaged with loss of grease. Since M800 MGP spares of lower ball joint comes as a single unit with the lower control arm ,i chose to replace both sides at the same time as best preventative maintenance.
I have chosen to make slides with pictures for the entire procedure attached in this thread.
The entire procedure took me around 2 hours.
METHOD FOR CONTROL ARM REPLACEMENT
1. The customary jacking up of car and placement of jack stands with rear wheel chocks; douse all the bolts with penetrating fluid WD40 at start of the entire process to sufficiently help in removing the bolts
2. For removal of control arm the sway bar needs to be removed first .14mm hex bolts are removed to undo the clamps holding the sway bar; 17 mm castle nut with cotter pin to be undone to remove the sway bar end passing through the control arm.A deep 17 mm socket or a ring spanner is more useful in this situation.
3. Pull the entire sway bar out and replace the rubber bushings after applying a silicon lubricant on the metal. I used white paint to mark the mounting points so that it would align the same way it was removed .
4. Next undo the 14mm bolt holding the control arm on to the frame of the car. Use a longer wrench for extra leverage.
5. Undo the 14 mm pinch bold holding the lower ball joint into the knuckle .Use a hammer and twisting motion to remove the control arm from its seat in the frame and the ball joint from the knuckle.
6. Clean the areas on the frame and knuckle where the new parts go in and needed to be bolted with diesel and WD40.
7. Now do the steps in reverse to first seat the control arm end first and push the ball joint into the knuckle and apply the pinch bolt. I used a piece of wood and hammer to knock the control arm into its position .Do the same on both sides .Apply the bolts loosely.
8. Finally seat the sway bar with rubber bushings through the control arm and apply the castle nut with the metal washer. Make sure the entire setup is fully aligned before starting to tighten the bolts. Use a new cotter pin and bend it appropriately.
TORQUE SPECS FOR THE VARIOUS BOLTS
castle nut :65 Nm
Sway bar bushing bracket bolt :43 Nm
Flexible hose to caliper banjo bolt :23 Nm
Ball stud pinch bolt :55Nm
Control arm bolt : 65Nm.
Finish.
lower the car down and then once finally go around tightening all the bolts .Go for a test ride .I must say the car has sufficiently quietened on bumpy roads and takes bumps more easily[clap].
 

Attachments

Joined
Apr 4, 2017
Messages
365
Likes
235
Location
Mangalore
Re: M800 diy lower control arm

Good Task.
I am not dare enough to do this DIY as one slip here and there means more problem. Also you need better stamina to do this task,which only young persons like you could do.
By the by, which model is the M- 800 you have and what is the total mileage clocked, what mileage you are getting because you are taking care of your car.
Regards
Shenoy
 
Thread Starter #3
Joined
Oct 7, 2015
Messages
374
Likes
461
Location
Bengaluru
Re: M800 diy lower control arm

Thank you sir for your appreciation [:)].Mine is a 2005 MPfi AC M800 done 48444 as of today.I use this car primarily to pick and drop my kid to school and i get around 16kmpl on an average tank full to tank full.
 
Joined
May 16, 2014
Messages
1,366
Likes
2,457
Location
kanpur
Re: M800 diy lower control arm

Congrats for this successful DIY! I simply love it. Good display and pics with labelling too. How is the ride quality and underbody sound after this DIY??
 
Last edited:
Thread Starter #5
Joined
Oct 7, 2015
Messages
374
Likes
461
Location
Bengaluru
Re: M800 diy lower control arm

Congrats for this successful DIY! I simply love it. Good display and pics with labelling too. How is the ride quality and underbody sound after this DIY??
thanks doc for your compliment [;)]the car is more silent now especially with sharp edged ditches and the ride is more firm now .
 
Top Bottom