Restoring heavily rusted bumper |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Restoring heavily rusted bumper |
Geezer914 |
Jun 25 2022, 11:53 AM
Post
#1
|
Geezer914 Group: Members Posts: 1,393 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
Heavily rusted bumper, the outside is fine. What is the best way to build up the heavily rusted and pitted area?
|
914Sixer |
Jun 25 2022, 01:13 PM
Post
#2
|
914 Guru Group: Members Posts: 8,874 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
Get some navel jelly and soak it. Keep repeating until clean as possible. Lots of rust preventative paints out there.
|
mgphoto |
Jun 25 2022, 01:21 PM
Post
#3
|
"If there is a mistake it will find me" Group: Members Posts: 1,338 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
Remove the rust first, wire brush on a power drill, then phosphoric acid soak till it turns black, rinse with water very well, than seal with por-15
|
rhodyguy |
Jun 25 2022, 01:42 PM
Post
#4
|
Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,071 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Could it be rechromed and look decent?
|
BillJ |
Jun 25 2022, 02:10 PM
Post
#5
|
Senior Member Group: Members Posts: 1,094 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
Unlikely that it could be brought back from that heavy pitting. Or if possible not economically feasible as you can buy a new one for not too much money. Understand the motivation but as long as it looks good on outside and you take steps above you will be fine if keeping original.
|
rhodyguy |
Jun 25 2022, 02:28 PM
Post
#6
|
Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,071 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Guess it depends on what the money side looks like.
|
930cabman |
Jun 25 2022, 02:53 PM
Post
#7
|
Advanced Member Group: Members Posts: 3,007 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
"Build it up" as far as I know there is no such product. You can remove the rust with one of several methods, many mentioned previously
|
mepstein |
Jun 25 2022, 03:32 PM
Post
#8
|
914-6 GT in waiting Group: Members Posts: 19,254 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Here’s my guess. There is so much rust that I’d be surprised if it’s not gone through the metal and is being hidden by the chrome on the other side. I think blasting the corrosion will reveal Swiss cheesed metal. Of course I’m just guessing but it would be typical.
|
Geezer914 |
Jun 25 2022, 06:09 PM
Post
#9
|
Geezer914 Group: Members Posts: 1,393 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
The money side looks good. It is going to be painted.
|
Front yard mechanic |
Jun 25 2022, 08:58 PM
Post
#10
|
Senior Member Group: Members Posts: 1,157 Joined: 23-July 15 From: New Mexico Member No.: 18,984 Region Association: None |
Throw that thing back in the surf (IMG:style_emoticons/default/ar15.gif)
|
Costa05 |
Jun 26 2022, 11:00 AM
Post
#11
|
Member Group: Members Posts: 320 Joined: 27-October 16 From: Phoenix, Arizona Member No.: 20,535 Region Association: Southwest Region |
Remove the rust first, wire brush on a power drill, then phosphoric acid soak till it turns black, rinse with water very well, than seal with por-15 (IMG:style_emoticons/default/agree.gif) I would actually do the phospho wire brush step multiple times until the rust color no longer appears when wire brushing it. This rust looks deep. |
rhodyguy |
Jun 26 2022, 11:14 AM
Post
#12
|
Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,071 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
I would use a brass wheel in my drill motor. If ok, I'll post some pictures of a rough early rear I have. Paint to match the red one on the front? Look in to Mar-Hyde for a rust converter product.
|
nivekdodge |
Feb 27 2023, 07:23 PM
Post
#13
|
Member Group: Members Posts: 248 Joined: 28-August 21 From: Pittsburgh Pa Member No.: 25,860 Region Association: MidAtlantic Region |
sem rust sheild
|
r_towle |
Feb 27 2023, 07:40 PM
Post
#14
|
Custom Member Group: Members Posts: 24,571 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
If your plan is to paint, just sandblast it.
Standard metal prep, fill, paint after |
bkrantz |
Feb 27 2023, 08:29 PM
Post
#15
|
914 Guru Group: Members Posts: 7,746 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains |
Try to poke an awl through from either side before wasting any work time. Start with the worst spot. I bet you will find all the steel is now rust.
For painted bumpers, you can treat it like any sheet metal. Cut out the bad, weld in some new, shape, and finish. |
rhodyguy |
Feb 28 2023, 10:27 AM
Post
#16
|
Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,071 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
The chrome finish one I have is the early version with the sharp edges around the plate. It’s rough. Perhaps better sold as a paintable early core as is? I have few bumpers that need new homes. This is not an ad.
|
BillJ |
Feb 28 2023, 10:45 AM
Post
#17
|
Senior Member Group: Members Posts: 1,094 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
Please follow up when you go at it. Would love to see this work out for you.
|
maf914 |
Mar 1 2023, 08:40 AM
Post
#18
|
Not a Guru! Group: Members Posts: 3,049 Joined: 30-April 03 From: Central Florida Member No.: 632 Region Association: None |
I just ran across the following video. It may help if the rust is not too serious.
https://classicmotorsports.com/video/video-..._eid=2ed9ec98ea |
Lo-Fi Version | Time is now: 4th May 2024 - 02:51 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |