Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > General Topics > The Pub

The Pub For General Automotive Related Talk

Reply
 
Thread Tools Display Modes
Old 07-07-2021, 08:46 PM   #1
Ray_aus
Starter Motor
 
Join Date: Sep 2015
Posts: 4
Default Cracking bonnet protectors

I have just noticed my third bonnet protector on my 2018 Everest cracking, the original factory protector flew off the car after only a few months ( I hand just removed and reinstalled to clean under it ) and subsequently two others aftermarket protectors I purchased also cracked.
I made sure that the screws weren’t over tighten and even used Loctite on the screws so that they were not to tight.
On my last bonnet protector I started from scratch, I removed all the clips and used the new ones that came with the protector.
The positioned of the screw holes were all central.
The plastic did not appear to be under any stress at all.
This last one only lasted less then a month and driven under 100km at city speeds.
I do have a rhino bull bar and just wondering if it’s deflecting air up and under and stressing it.
Any thoughts would be appreciated.
Ray_aus is offline   Reply With Quote Multi-Quote with this Post
Old 07-07-2021, 09:03 PM   #2
HIPO
Al
 
HIPO's Avatar
 
Join Date: Feb 2015
Location: South Aus.
Posts: 1,639
Default Re: Cracking bonnet protectors

expansion - contraction, vibration fatigue. ??
HIPO is offline   Reply With Quote Multi-Quote with this Post
Old 08-07-2021, 12:23 AM   #3
XR Martin
FF.Com.Au Hardcore
 
XR Martin's Avatar
 
Join Date: Dec 2004
Location: Canberra Region
Posts: 8,880
Default Re: Cracking bonnet protectors

What brand? Are they cheap ones off ebay?
__________________
2016 FGX XR8 Sprint, 6speed manual, Kinetic Blue #170

2004 BA wagon RTV project.

1998 EL XR8, Auto, Hot Chilli Red

1993 ED XR6, 5speed, Polynesian Green. 1 of 329. Retired

1968 XT Falcon 500 wagon, 3 on the tree, 3.6L. Patina project.
XR Martin is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 08-07-2021, 10:56 PM   #4
Top_Ghia
FF.Com.Au Hardcore
 
Join Date: Jun 2010
Posts: 2,624
Technical Contributor: For members who share their technical expertise. - Issue reason: has been consistently providing good technical advice etc. to AFF members, by having the vast technical knowledge he has with the various Ford products. A valuable AFF member 
Default Re: Cracking bonnet protectors

You may have Casanova fingers
Top_Ghia is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 10-07-2021, 07:00 PM   #5
Ray_aus
Starter Motor
 
Join Date: Sep 2015
Posts: 4
Default Re: Cracking bonnet protectors

It was only 2 weeks old on and travelled less than 100 km.
The way it’s cracking I believe it’s due to Flexing it’s being lifted by and up-draught coming off the bull bar.
Ray_aus is offline   Reply With Quote Multi-Quote with this Post
Old 10-07-2021, 07:01 PM   #6
Ray_aus
Starter Motor
 
Join Date: Sep 2015
Posts: 4
Default Re: Cracking bonnet protectors

Both types factory and eBay.
I believe it’s due to flexing from an updraught created by the bull bar.
Ray_aus is offline   Reply With Quote Multi-Quote with this Post
Old 10-07-2021, 07:03 PM   #7
Ray_aus
Starter Motor
 
Join Date: Sep 2015
Posts: 4
Default Re: Cracking bonnet protectors

I may have over tighten the first one which I doubt but not the other two I used Loctite so that I wouldn’t over tighten them, finer tight with a small driver.
I believe it could be due to flexing from an updraught created by the bull bar.
Ray_aus is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 10-07-2021, 07:03 PM   #8
HIPO
Al
 
HIPO's Avatar
 
Join Date: Feb 2015
Location: South Aus.
Posts: 1,639
Default Re: Cracking bonnet protectors

Try reinforcing & painting??
HIPO is offline   Reply With Quote Multi-Quote with this Post
Old 10-07-2021, 07:27 PM   #9
Silver Ghia
Moderator
Donating Member3
 
Silver Ghia's Avatar
 
Join Date: Jun 2006
Location: Foothills of the Macedon Ranges
Posts: 18,498
Technical Contributor: For members who share their technical expertise. - Issue reason: As Silver Ghia his contributions to the AU and BA technical areas have been of high quality and valuable to the member base. 
Default Re: Cracking bonnet protectors

Loctite nutlock etc. contacting with plastic makes the plastic go brittle.

Never use Loctite with plastic unless its the Loctite adhesive thats designed to be used with plastic.

I'd use nuts with nyloc inserts with the screws to ensure they don't loosen.
Silver Ghia is offline   Reply With Quote Multi-Quote with this Post
Old 10-07-2021, 09:19 PM   #10
slowsnake
Banned
 
Join Date: Nov 2016
Location: Perth Australia
Posts: 3,618
Default Re: Cracking bonnet protectors

I would drill a bigger hole in plastic and fit a rubber grommet, the ID which would be the size of the bolt, and a small stainless washer or even fibrelock washer or both, and don't overnighter them, too rigid!


Cheers King Billy
slowsnake is offline   Reply With Quote Multi-Quote with this Post
Old 11-07-2021, 11:02 AM   #11
73 4V XB
Frankenford pilot
Donating Member1
 
73 4V XB's Avatar
 
Join Date: Feb 2008
Posts: 18,710
Default Re: Cracking bonnet protectors

Quote:
Originally Posted by Ray_aus View Post
Both types factory and eBay.
I believe it’s due to flexing from an updraught created by the bull bar.
Tie some ribbons to the top of the bar and see if it is actually creating an updraft.
Might help rule that out or not.
__________________
Cheers Bretto


73 XB GT
Last of the Big Ports
73 4V XB is offline   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 05:10 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL