New parcel shelf - do I need an engineer's certificate? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Audio And Security
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-04-2004, 16:21   #1 (permalink)
'77 XC Wagon in progress
 
Neeek's Avatar
 
Join Date: Mar 2004
Location: Brisbane, QLD
Age: 38
Posts: 451
New parcel shelf - do I need an engineer's certificate?

As it says, really.

I made a new one up from a slab of MDF for my 6x9s, and it fits perfectly, looks fine, doesn't get in the way of the belts or anything, etc... but slightly worried that this "mod" will attract the attentions of "plod", so to speak.
Neeek is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-04-2004, 17:07   #2 (permalink)
Blue Blood
 
ianmcginley's Avatar
 
Join Date: Sep 2002
Location: Buried in a sand trap somewher
Age: 36
Posts: 1,375
Re: New parcel shelf - do I need an engineer's certificate?

I would have thought that a slab of MDF would be no where near torsionally strong enough. However the amount of strength required to support the car (rear window, etc) is questionable, however I wouldn't have thought MDF would cut the mustard.
__________________
Falcon Killer (if you believe what Ford Service Departments have to say about me)
AU II XR6 - October 2001 ~ December 2002 - RIP
BA XR6 - December 2002 ~ Soon to disappear if Ford CRC can't fix it....

45,000km service coming up - and i'll be asking for a sizable list of fixes:
* Gearbox (3rd time)
* Steering click (5th time)
* Brake Shudder (2nd time, and has the applied "Fix")
* etc...
ianmcginley is offline   Reply With Quote
Old 08-04-2004, 17:10   #3 (permalink)
'77 XC Wagon in progress
 
Neeek's Avatar
 
Join Date: Mar 2004
Location: Brisbane, QLD
Age: 38
Posts: 451
Re: New parcel shelf - do I need an engineer's certificate?

Quote:
Originally Posted by ianmcginley
I would have thought that a slab of MDF would be no where near torsionally strong enough. However the amount of strength required to support the car (rear window, etc) is questionable, however I wouldn't have thought MDF would cut the mustard.
Ah.. perhaps I should be clearer - the MDF sits on TOP of the original shelf, so it's not actually replacing the original metal one. This being the case, sounds as though it'll be OK, right?
Neeek is offline   Reply With Quote
Old 08-04-2004, 17:25   #4 (permalink)
Blue Blood
 
ianmcginley's Avatar
 
Join Date: Sep 2002
Location: Buried in a sand trap somewher
Age: 36
Posts: 1,375
Re: New parcel shelf - do I need an engineer's certificate?

Quote:
Originally Posted by Neeek
Ah.. perhaps I should be clearer - the MDF sits on TOP of the original shelf, so it's not actually replacing the original metal one. This being the case, sounds as though it'll be OK, right?
Oh - yeah if its just bolted to the original metal shelf so you can fit the bigger speakers, I can't see a problem with that. Then again i'm not an automotive engineer with any knowledge of legal requirements. But sounds good
__________________
Falcon Killer (if you believe what Ford Service Departments have to say about me)
AU II XR6 - October 2001 ~ December 2002 - RIP
BA XR6 - December 2002 ~ Soon to disappear if Ford CRC can't fix it....

45,000km service coming up - and i'll be asking for a sizable list of fixes:
* Gearbox (3rd time)
* Steering click (5th time)
* Brake Shudder (2nd time, and has the applied "Fix")
* etc...
ianmcginley is offline   Reply With Quote
Old 08-04-2004, 20:35   #5 (permalink)
Registered User
 
Join Date: Feb 2004
Location: The 'Gong
Posts: 94
Re: New parcel shelf - do I need an engineer's certificate?

You don't need an engineers report unless you are changing the vehicle structurally or mechanically from original. A parcel shelf contributes to neither so you've no need to worry.
75Hardtop is offline   Reply With Quote
Old 08-04-2004, 20:53   #6 (permalink)
Can't wait for Winton...
 
outback_ute's Avatar
 
Join Date: Jul 2003
Location: Victoria
Posts: 2,759
Re: New parcel shelf - do I need an engineer's certificate?

An add-on shelf doesn't but the original metal one sure does contribute to the structural integrity. Technically you should not drill a hole in it.
outback_ute is offline   Reply With Quote
Old 08-06-2004, 05:22   #7 (permalink)
Formerly: SmokeEA
 
SmokedEB's Avatar
 
Join Date: Jun 2003
Location: End of Eastern FWY Melbourne
Age: 29
Posts: 1,117
Re: New parcel shelf - do I need an engineer's certificate?

"Technically"? drilling holes doesnt affect strength that much, as a studying Structural engineer, you dont require a certificate for the addition to your shelf, and if you drill small holes you wont either. When you start hacking large chunks out is when you need it.
__________________
RIP 88' EA Falcon S pack
92 EB Fairmont - Retired POS!
SmokedEB is offline   Reply With Quote
Old 08-09-2004, 04:55   #8 (permalink)
rau
Don't Know Much User
 
Join Date: Jun 2004
Location: Adelaide
Posts: 59
Re: New parcel shelf - do I need an engineer's certificate?

Just make sure its properly secured, ie sub boxes must be secured at four points. A mate of mine made aup a rear parcel shelf that hid his speakers under a thin layer of carpet, didnt effect the sound quality and gave the impression that there were no rear speakers if looking at it, great theft prevention
__________________
EB S-Pak,4L auto, ,Stage 2 Crow Cam & springs,Vernier gear,Port/polish,Pacemaker headers and 2 1/2 zorst,Chiptorque chip,slotted rotors,3.08 lsd.
rau is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Audio And Security



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rear parcel shelf - engineering cert? outback_ute Ford Ute Forum 13 06-30-2004 02:56
Fiesta parcel shelf craggus2000 Interior | Electrical | ECU 0 05-20-2004 12:35
Fiesta parcel shelf craggus2000 Ford Fiesta Forum | Ford kA Forum 0 05-20-2004 12:08
RBRB BRBRB RBRBRB parcel shelf vibration MustangNicko Audio And Security 45 07-11-2003 08:48
6x9's in parcel shelf.. No cutting.. Axeman82 Audio And Security 25 05-29-2003 18:37

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 14:30.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.