ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-31-2012, 10:46 AM   #1
TEXASYETI OP
Call me "thread killer!"
 
TEXASYETI's Avatar
 
Joined: Dec 2002
Location: Fort Worth, Texas
Oddometer: 1,881
Need advice on Heinrich tank

So, I managed to score a g/s Heinrich tank from a fellow AdvRider and was looking for your thoughts.

The tank was "customized" to clear aftermarket forks by putting big dents into the front lobes on either side.




I am wondering about having the dents removed and restoring the tank back to its former glory. But there is also a part of me that likes the dents because they are a part of the life the tank has led.

I have a reputable BMW airhead shop here in town quoting me 325 bucks for their body man to fix the tank. Not sure if he is proposing to try and push, pull, cut out, flip, and replace, cut out and replace with new metal, or just put new metal over the dents. I'll see what he says later today.

So, leave it alone or fix it. I really am conflicted and your thoughts are welcomed!
__________________
BobFV1 to Putts: "Congrats on the bike. Also, congrats on having a dog with a perfectly heart-shaped asshole."

1981 R80G/S
1991 R100 GSPD

FIRST TIME RIFF RAFF - Go Jonah!
TEXASYETI is offline   Reply With Quote
Old 10-31-2012, 12:40 PM   #2
disston
ShadeTreeExpert
 
disston's Avatar
 
Joined: Mar 2011
Location: Silver Spring, Md
Oddometer: 7,970
Beware he doesn't want to just fill the dents with body putty.

I'd be for fixing the dents if the end result will fit the future use better and it was done in a way that was considered permanent. Pulling would be the best I think but I certainly don't know if this can be pulled. If you do a lot of cutting and welding new material on it gets dangerous, IMHO.

The way dents are repaired on older cars is to bang the metal out to the original shape as close as possible. This is a wrinkle sort of finish and then this is smoothed with a limited amount of body filler. If I just had to have the original shape I think this would be better than welding new metal.

I'm not a welder tho, maybe one of them knows better than me.
__________________
.
Never memorize something you can look up.
---Albert Einstein

Pay your debt, piratejohn.http://www.advrider.com/forums/showthread.php?t=949341
disston is offline   Reply With Quote
Old 10-31-2012, 04:43 PM   #3
daveoneshot
Gnarly Adventurer
 
Joined: Dec 2010
Location: Vermont
Oddometer: 351
Looks like a steel tank, right ? I would choose to see the metalworker's other projects and talk it over. I'm a beginning metalshaper and know only a few things about the craft, but this tank is a big job to do nicely. Go see the guy.
daveoneshot is offline   Reply With Quote
Old 10-31-2012, 04:55 PM   #4
SOLO LOBO
airhead or nothing
 
SOLO LOBO's Avatar
 
Joined: Mar 2004
Location: Shoreline, WA
Oddometer: 8,501
Just paint it and ride... don't ruin the history and story of the tank.
__________________
"punkrocks what it's all about" - J. Strummer



Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
SOLO LOBO is offline   Reply With Quote
Old 10-31-2012, 06:25 PM   #5
bmwhacker
Still on 3 wheels
 
bmwhacker's Avatar
 
Joined: May 2009
Location: MONTANA NATIVE from NATIVE MONTANA
Oddometer: 4,069
Man, that is a BIG ASS Heinrich tank.

I'b be tempted to restore it to its' original shape / condition as long as you can find someone to do it correctly.
If you bought it "right" it will only increase the value. ...but if you use it as is...and scratch it up, that will just add to the "patina".
I have a smaller Heinrich tank with the top tool box.
I found reproduction tool box covers but opted for a used, slightly beat up original.
The dents / dings give the cover "patina" and character.
__________________
http://555navigator.blogspot.com

Living proof you shouldn't play with matches
ABC# 1992

bmwhacker screwed with this post 10-31-2012 at 06:31 PM
bmwhacker is offline   Reply With Quote
Old 11-01-2012, 04:46 AM   #6
Hiatt
Adventurer
 
Joined: Jan 2003
Oddometer: 92
If you are going to make it as it was, it looks to me like the rear end has been chopped off too. That part will be harder than the front.

Do what you want. In the end, the only real value is what it means to you. If I were going to sell it, I'd probably restore it.

JH
__________________
Off the wagon, under the wheel again
Hiatt is offline   Reply With Quote
Old 11-01-2012, 06:00 AM   #7
TEXASYETI OP
Call me "thread killer!"
 
TEXASYETI's Avatar
 
Joined: Dec 2002
Location: Fort Worth, Texas
Oddometer: 1,881
The rear end does look funny but compared to this other one, I do not think the rear has been cut off.



Talked to my guy today and he said the metal is too stretched to try and pop em out from the backside. He says he and his metal guy think that cutting the dents out just inside where the metal begins to curve inward and then fabricate new pieces to lay in the opening.
__________________
BobFV1 to Putts: "Congrats on the bike. Also, congrats on having a dog with a perfectly heart-shaped asshole."

1981 R80G/S
1991 R100 GSPD

FIRST TIME RIFF RAFF - Go Jonah!
TEXASYETI is offline   Reply With Quote
Old 11-01-2012, 06:56 AM   #8
Hiatt
Adventurer
 
Joined: Jan 2003
Oddometer: 92
I have one that looks just like that. When I stripped it to bare metal, it was easy to see that the back end had been cut off. I am no expert on these tanks by any means. I am just relaying my experience. I did not change mine as I prefer it not hanging over the nose of the seat like all the others I have seen.

JH
__________________
Off the wagon, under the wheel again
Hiatt is offline   Reply With Quote
Old 11-01-2012, 07:18 AM   #9
disston
ShadeTreeExpert
 
disston's Avatar
 
Joined: Mar 2011
Location: Silver Spring, Md
Oddometer: 7,970
Certainly there are people that know better than I know but the thing about cutting and welding new metal bothers me. Maybe this is not as hard to do as I think but metal is not all the same. Even if you call this metal Steel it is unique. Even if you have a general idea as in it is Mild Steel it is unique. Even if somebody says it has 0.2 Carbon in it is is still unique. Maybe I'm getting across what my concern is. Any new metal added to the tank will not be the same and then a process of electrolysis will be set up.

Maybe this is not a big concern on motorcycle tanks? I used to work on boats and they talked about this stuff all the time. I don't understand it always but I think it's a concern.

Good luck. I'd still want the tank as originally made. Unless you change the front forks of the bike and the dents have some purpose again.

BTW, you are going to do something with it, why not strip the paint now so you can see what's ahead?
__________________
.
Never memorize something you can look up.
---Albert Einstein

Pay your debt, piratejohn.http://www.advrider.com/forums/showthread.php?t=949341
disston is offline   Reply With Quote
Old 11-01-2012, 07:32 AM   #10
TEXASYETI OP
Call me "thread killer!"
 
TEXASYETI's Avatar
 
Joined: Dec 2002
Location: Fort Worth, Texas
Oddometer: 1,881
Quote:
Originally Posted by Hiatt View Post
I have one that looks just like that. When I stripped it to bare metal, it was easy to see that the back end had been cut off. I am no expert on these tanks by any means. I am just relaying my experience. I did not change mine as I prefer it not hanging over the nose of the seat like all the others I have seen.

JH
Gotcha. I think mine might be original as it does hang over the seat a good bit. More than actually in the second pic I posted.
__________________
BobFV1 to Putts: "Congrats on the bike. Also, congrats on having a dog with a perfectly heart-shaped asshole."

1981 R80G/S
1991 R100 GSPD

FIRST TIME RIFF RAFF - Go Jonah!
TEXASYETI is offline   Reply With Quote
Old 11-01-2012, 08:02 AM   #11
SOLO LOBO
airhead or nothing
 
SOLO LOBO's Avatar
 
Joined: Mar 2004
Location: Shoreline, WA
Oddometer: 8,501
Here's a shot of my old Heinrich... It actually sucked to ride with... splays your legs widley, holds the fuel really high up... while I love the look and would have another given the chance it wasn't the best choice (IMHO) for a G/S that gets ridden off-road.

__________________
"punkrocks what it's all about" - J. Strummer



Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
SOLO LOBO is offline   Reply With Quote
Old 11-01-2012, 09:44 AM   #12
bmweuro
Mad Scientist
 
bmweuro's Avatar
 
Joined: Nov 2003
Location: Chico, California
Oddometer: 3,313
With these tanks getting harder and harder to find in any condition fix it and if you found someone to fix it that cheap and he will do it correctly for that price I say fix it. Just for reference I would charged someone $100.00 to boil the tank out, $720.00 in metal working labor and $400.00 for body work ready for paint. Again if he will do it correct for $325.00 do it.
__________________
BOXER Metal
BMW Biker Scum
BMW Mad Scientist!
VBMWMO #7770, BMW MOA #48694 & Airhead BMW Club #600
bmweuro is offline   Reply With Quote
Old 11-01-2012, 12:16 PM   #13
mark1305
Old Enough To Know Better
 
mark1305's Avatar
 
Joined: Feb 2005
Location: Merritt Island, FL
Oddometer: 5,869
I'll be a contrarian and vote for keeping the dents - or bar reliefs if you want it to sound classier. If they need smoothing to be perfect, do that so it looks like higher quality while refinishing.

My personal experience and opinion is that bar-tankinterference is a PITA. You have a case of compromise between form and function that may work to your advantage in real world use.

And has been mentioned, its part of the history of the tank. Although the above paragraph would be my main guiding point if it were me deciding.
__________________
Mark J
Merritt Island, FL

When a person asks you for advice, they don't want advice. They want corroboration.
mark1305 is offline   Reply With Quote
Old 11-01-2012, 01:41 PM   #14
gsd4me
90% bluff
 
gsd4me's Avatar
 
Joined: Dec 2005
Location: Brisbane, Australia
Oddometer: 6,971
Quote:
Originally Posted by TEXASYETI View Post
The rear end does look funny but compared to this other one, I do not think the rear has been cut off.

Correct. While not as common as the `over the seat` style, it is a style that was offered by Heinrich, I imported a new one into Australia for my 80/7 in around 1978.

I had an inverted `V` (^ like this) welded from the tank to the rear mount to better handle the weight in that area.
__________________
David Hunn:
R100GS Ray Peake special.

http://www.advrider.com/forums/showt...uild+australia
gsd4me is offline   Reply With Quote
Old 11-01-2012, 05:14 PM   #15
ontic
 
Joined: Jul 2008
Location: LaoPDR/Australia.
Oddometer: 1,037
A nice one in Germany

http://www.ebay.com.au/itm/321013875...#ht_500wt_1219
__________________
1974 R90/6
1981 R80G/S
1994 XLR250R
ontic is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
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 On

Forum Jump


Times are GMT -7.   It's 10:09 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014