Hi!!!
Have been consistently following up with Sound Damping Thread, as well as DIY - Damping initiatives by a number of forum members for last 1+ yr.
Some questions which lingered in my mind for this period:
- Will Damping really help a heavy vehicle like Safari?
- Arent noise levels in 2.2L version already much lower than the earlier 3L/ TDIC versions?
- Which Stuff to use Availability vs Cost?
- Can it be pure DIY?
Some of the factors which finally made me take a plunge for my 3+ yrs old beast:
- Vibrations Noise from A/ B Pillars, Doors, Overhead Console esp. @ 1200 1500 RPM
- Increasing Engine Vibrations probably aging factor too
- Dissatisfaction from the from the front Component Speakers mounted on Plastic panel
- Shrill/ brittleness from Tweeters (sounded very bright)
- Encouragement from some Forum Members experiments
Step 1: Selection of the Damping Material
Finally zeroed down on the Wurth Sound Damping Pads, basis availability and company repute. Googled and contacted one of their Sales Manager, who promised to deliver the product at Chandigarh.
Ordered 7 Packs
Approx 65 sq feet (each pack contains 6 sheets of 550*250*2 mm)
Total Cost (including VAT + Transportation) for 7 Packs
Rs. 12779/- (Rs. 200/ Sq Feet approx)
Step 2: Inputs from Forum Members
PMed few Forum Members for their expert advise/ inputs. My
Heartiest Thanks to Deralte, LionX (Sumith), Navin and Stefanm for their inputs.
Also watched couple of Videos on YouTube on installation of Dynamat/ NoiseKill.
Step 3: Finalisation of right guys to do the Job For Doors was able to coax my ICE installer who readily agreed to spend his Sunday on my vehicle. Ensured that he shall get along a Hot Air Blower and other instruments to dismantle Door Panels
For Dashboard Searched/ inquired and finally zeroed on an Air-Conditioning Repair Electrician experts in handling Dashboards - probably said to be among good ones in the City. He actually discouraged me from going ahead with Damping the Firewall stating that Firewall is already carpeted with Ύ thick carpet (Namda).
Also purchased a 3 Seam Roller from the Paint Shop for Pressing/ Contouring the Sheets to Metal
Actual Job Weekend (January 29 30, 2011) Day 1 January 29, 2011 (Saturday)
Reached Chandigarh Auto Market Sector 28 at around 1030 Hrs. There were 3 guys who actually dismantled the Dashboard approx 45 Minutes. Then hired services of one more guy (expert in carpeting), and he pasted the sheets on the Firewall by first removing the carpet, followed by pasting the sheets and then re-carpeting.
The next step was to put some amount of these sheets in the A Pillars and Door Linings.
Dashboard was then assembled along with steering Wheel adjustment etc.
The entire Job was completed by 1400 Hrs.
Sheets used 8 Sq Feet. Labor Cost Rs. 1100/- Day 2 January 30, 2011 (Sunday)
My ICE installer reached my place around 1130 Hrs along with 2 assistants. We took our Safari and straightway went to Industrial Area for designing of MDF Rings for front Compos. The guy we went to is said to be authority in his job.
Finally designed
set of 3 MDF Rings (3*19mm) for each side, with the innermost ring having protruding extensions to help screw it with Metal Sheet, and the Outermost ring tapered at some area on external diameter for fit of external plastic mesh locks.
Post this we returned home, and started damping of Doors:
Front Doors were first to be dismantled. Inner metal skin of each door was damped by 2.5 Sq Feet of sheets cut to size, while outer metal skin required approx 5.5 Sq Feet, and the FRP board approx 2.5 Sq Feet of stuff
We then mounted the MDF Rings and Compos on the Outer Metal Skin, and the front doors we assembled post that
Rear Doors were damped on just the Outer Metal Skin (5.5 Sq Feet) and the FRP (2.5 Sq Feet), and then assembled.
Post this we also damped
- Overhead Console Lights and Sun-flap Cluster
- Side lining of Glove Box
Task completed @ 1830 Hrs, and hence had a
relaxed Hot Shower @ 1930 Hrs. Total stuff Used: 35 Sq Feet. Labor Cost Rs. 1400/-
Hence Total Costing (Approx)
- Cost of Material: 9000 (45*200)
- Labor Cost 2500
- Total Costing Rs. 11500/-
RESULTS:- Much Quieter Engine @ pickup, and almost silent at high speeds
- Internal Vibrations Plastics/ Doors vanished
- Sound Quality from Compos/ Tweeters much tighter
Regards,
Ishlesh