Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
> Retrofitting 1976 with early front bumper.
dhopkins
post Oct 27 2006, 08:36 PM
Post #1


Member
**

Group: Members
Posts: 50
Joined: 7-July 04
From: Rydal, Pa
Member No.: 2,315



Is it possible to install an early bumper on a 1976? If so how is it done?

Don
0-----------------------------------------------------
1976 914 2.0
1969 911S
1981 911SC
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
boxstr
post Oct 27 2006, 08:54 PM
Post #2


MEMBER:PACIFIC NORTHWEST REGION
*****

Group: Members
Posts: 7,522
Joined: 25-December 02
From: OREGON
Member No.: 12
Region Association: Pacific Northwest



Yes it can be done. You might try a search for the subject it has been a thread recently.
If you don't find it I will give you some help a little later tonight.
Craig
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
porschecb
post Oct 27 2006, 09:10 PM
Post #3


Senior Member
***

Group: Members
Posts: 1,092
Joined: 13-August 04
From: Las Vegas NV
Member No.: 2,529
Region Association: None



what! you don't like late style bumbers! There faster than the older style (on the track) !!! (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
So.Cal.914
post Oct 27 2006, 09:19 PM
Post #4


"...And it has a front trunk too."
*****

Group: Members
Posts: 6,588
Joined: 15-February 04
From: Low Desert, CA./ Hills of N.J.
Member No.: 1,658
Region Association: None



The condom bumpers are heavier. There are four bolts that hold the old style

bumpers on, two on each side. Get your measurements from an old tub for

those holes and drill them into yours. Measure twice drill once.

Oh and you will need the bones.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dave_Darling
post Oct 27 2006, 09:23 PM
Post #5


914 Idiot
**********

Group: Members
Posts: 14,974
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California



I believe Paul means "rubber dog-bones", which go between the metal bumper and the car's body.

You also need to grind off the tabs on the side of the car that hold the ends of the bumper cover, and shorten the front lip of the front trunk's seal channel. That serves as a lip to hold the top of the bumper cover.

Remember to paint any bare metal...

--DD
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dhopkins
post Oct 27 2006, 10:06 PM
Post #6


Member
**

Group: Members
Posts: 50
Joined: 7-July 04
From: Rydal, Pa
Member No.: 2,315



I searched but found not a single thing. If I change to the early
bumper will it hurt or help the car's value?

Don
___________________________________________
1969 911S
1976 914 2.0
1981 911SC
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jk76.914
post Oct 27 2006, 10:06 PM
Post #7


Senior Member
***

Group: Members
Posts: 809
Joined: 12-April 05
From: Massachusetts
Member No.: 3,925
Region Association: North East States



I did it on my '76. I think it was worth it.

I found the front bumpers in good shape to be much harder to locate than the rear ones. Mine isn't perfect, but its better than most, and most people don't notice.

After you pull the bumpers and bumper shocks, you have to remove the tabs on the sides where the ends of the rubber cover used to hook. Then you fill the big holes that the shocks used to go through. Also, the thin metal tab that runs along the front edge of the trunk openning isn't needed anymore either. I is supposed to hold the top edge of the rubber cover down and in place. I think it was spot welded inplace and can be removed by drilling the spot welds out.

Finally, you drill new holes for the dogbone bumper brackets. I found this to be the trickiest part, because there isn't much room left and right for the bumper to sit off center, muchless look right.

On the original cars, there were L brackets welded in to reinforce the bumper mount to the side rail of the unit body. These are in the wheel well. I did not put anything in there, so my bumper and front panel would probably cave in an accident before the side rail. Maybe someday I'll have something welded in, I don't know. It's easy enough to do when ever I get the motivation.

In the back, you'll also need new license plate lights- the early ones are different. Also, there's a steel tab from the body, directly above the license plate, that the center stud from the rubber cover goes through.... another tricky part, getting it the right height and centered....

Good luck!
Jim

Some pictures- the back is a similar process.
Attached Imagestarted with this
Attached Imagebig shock holes to be filled....
Attached Imageshock holes filled, attachment holes drilled, everything primed
Attached Imagefuzzy pic, but the tab is there below the lock hole
Attached Imagetoday! TA DA!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
boxstr
post Oct 27 2006, 10:34 PM
Post #8


MEMBER:PACIFIC NORTHWEST REGION
*****

Group: Members
Posts: 7,522
Joined: 25-December 02
From: OREGON
Member No.: 12
Region Association: Pacific Northwest



Well It looks like most of the process has been covered.
The major part of this process is the purchase of good front and rear bumpers. You will need the dogbones , you will also need good rubber bumper tops.
One thing that I always do is use threaded studs instead of bolts.
You put the studs in where the bolts are supposed to go and you can slide the dogbones over the studs, and slide them into the holes that you have drilled for them. This makes it a one person operation.
Note: you will use the dogbones for measuring the distance for the holes you will need to drill in the front and rear.
I will add a couple of pics for reference.
I have done about 20 different bumpers backdates, It is really very easy.
CCL


Attached image(s)
Attached Image Attached Image Attached Image Attached Image Attached Image Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
boxstr
post Oct 27 2006, 10:35 PM
Post #9


MEMBER:PACIFIC NORTHWEST REGION
*****

Group: Members
Posts: 7,522
Joined: 25-December 02
From: OREGON
Member No.: 12
Region Association: Pacific Northwest



A few more pics.


Attached image(s)
Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
boxstr
post Oct 27 2006, 10:37 PM
Post #10


MEMBER:PACIFIC NORTHWEST REGION
*****

Group: Members
Posts: 7,522
Joined: 25-December 02
From: OREGON
Member No.: 12
Region Association: Pacific Northwest



Last one....


Attached image(s)
Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bleyseng
post Oct 27 2006, 11:18 PM
Post #11


Aircooled Baby!
**********

Group: Members
Posts: 13,034
Joined: 27-December 02
From: Seattle, Washington (for now)
Member No.: 24
Region Association: Pacific Northwest



Nice pics Craig!

yep. its fairly easy to do and worth it.


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
So.Cal.914
post Oct 27 2006, 11:45 PM
Post #12


"...And it has a front trunk too."
*****

Group: Members
Posts: 6,588
Joined: 15-February 04
From: Low Desert, CA./ Hills of N.J.
Member No.: 1,658
Region Association: None



The studs in the bumper are a great idea Craig.

jk76.914 nice job on your 76.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dhopkins
post Oct 28 2006, 11:17 AM
Post #13


Member
**

Group: Members
Posts: 50
Joined: 7-July 04
From: Rydal, Pa
Member No.: 2,315



Thanks very much. Great job! How about the rear bumper? Anybody know how that is done?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Allan
post Oct 28 2006, 11:42 AM
Post #14


Teenerless Weenie
*****

Group: Members
Posts: 8,373
Joined: 5-July 04
From: Western Mesopotamia
Member No.: 2,304
Region Association: Southern California



QUOTE(dhopkins @ Oct 28 2006, 10:17 AM) *

Thanks very much. Great job! How about the rear bumper? Anybody know how that is done?


Pretty much the same way the front is done except you only have to trim the brackets on the left and right sides.

Also, get Engmans cover plates for the front shock holes or you'll fill the front trunk with water everytime you was the car...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jk76.914
post Oct 28 2006, 02:35 PM
Post #15


Senior Member
***

Group: Members
Posts: 809
Joined: 12-April 05
From: Massachusetts
Member No.: 3,925
Region Association: North East States



QUOTE(dhopkins @ Oct 28 2006, 01:17 PM) *

Thanks very much. Great job! How about the rear bumper? Anybody know how that is done?



Also the tab over the license plate. It'd be tempting to leave it off, but I wouldn't. Otherwise the rubber top is self-supporting in the center. Take another look at my earlier post.... I have a fuzzy pic of the tab.

Jim
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
shelby/914
post Oct 28 2006, 04:36 PM
Post #16


Senior Member
***

Group: Members
Posts: 804
Joined: 24-August 05
From: Foxfield, Co
Member No.: 4,655
Region Association: Rocky Mountains



There is another very good thread from Jan 04 entitled Old School Bumpers, retrofitting to a 76, but I could not get the search function to go straight to it. Found it by searching bumper conversion which came up with 23 pages. On page 21 there is a post called bumper backdate. There is a link in it which goes to old school. Good Luck. It should be easier but, (IMG:style_emoticons/default/WTF.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 28th March 2024 - 01:06 PM