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 )

2 Pages V  1 2 >  
 Reply to this topicStart new topic
> Stripped Gas Tank Threads
cary
post Sep 12 2014, 09:36 PM
Post #1


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
Working on replumbing my new fuel pump. So I decided to loosen the nuts that cinch down the fuel tank output pipes. Big one came off without a hitch. The return line, that's another story. The aluminum nut totally stripped out. Steel bung threads are embedded with aluminum.

Has anyone bought the M18 * 1.0 die or thread restorer and cleaned those threads before? Kind of an odd sized thread.
Hate to give up on this tank.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
walterolin
post Sep 12 2014, 09:46 PM
Post #2


Senior Member
***

Group: Members
Posts: 685
Joined: 30-November 11
From: Louisville, Ky
Member No.: 13,838
Region Association: South East States
Had the same problem, didn't want to buy a one time chaser (that's what plumbers call it). I took a dental pick and a wire wheel on my Dremel, and picked at the aluminum for a while. It eventually came clean.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Harpo
post Sep 13 2014, 05:13 AM
Post #3


Senior Member
***

Group: Members
Posts: 1,304
Joined: 21-August 11
From: Motor City aka Detroit
Member No.: 13,469
Region Association: None
My threads were damaged and I cleaned them up with a thread file. Took about 15 minutes but it worked like a charm

David
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Sep 13 2014, 08:50 AM
Post #4


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
I'll pick up a new wire wheel on the way to the shop. Then I'll do some picking and see if I can get it.
Called Hall Tool. They have a die, but its $30. And they're not open on the weekends.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Elliot Cannon
post Sep 13 2014, 09:31 AM
Post #5


914 Guru
*****

Group: Retired Members
Posts: 8,487
Joined: 29-December 06
From: Paso Robles Ca. (Central coast)
Member No.: 7,407
Region Association: None
If the outside threads are totaled, you can tap threads on the inside and use a different fitting.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Harpo
post Sep 13 2014, 06:52 PM
Post #6


Senior Member
***

Group: Members
Posts: 1,304
Joined: 21-August 11
From: Motor City aka Detroit
Member No.: 13,469
Region Association: None
Depending on the OD of the die the second (return) fitting might to too close to thread the die on. A thread file will fit between the two fittings. One metric file has two ends and four sides per end yielding eight common thread pitches. A whole lot cheaper than 8 dies.

http://www.amazon.com/Allstar-Performance-...d/dp/B003BZLK6O
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Sep 13 2014, 07:55 PM
Post #7


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
I have one of those. Won't fit up against the rib.
The wire wheel and the picks did pretty good. The thread file helped in a couple spots. I think if a had a steel nut I could finish it up .............

The aluminum one starts about 2 threads........... so i'm making progress.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Sep 15 2014, 08:31 AM
Post #8


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
Did a little more research. Looks like the M18*1.0 is the only spindle nut that Nissan/Datsun has ever used. Comes in a Dorman kit or in a five pack.
I think I'll still get the die if its narrow enough to fit between the threads and the flange. I still five more cars awaiting restoration..............
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Sep 15 2014, 09:16 PM
Post #9


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
Die was a no go. Way too big. We have about .33" of space to work with. It would have needed about about .75" for the die to make a complete turn.

Stopped at my go to hardware store (Winks) to look for a nut. No go. They only went down to M18*1.5.

Ordered the Nissan spindle nuts at the flaps. Should be in first thing in the am.
I'm going make a thread restorer with one of them.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Sep 16 2014, 09:08 PM
Post #10


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
Nuts did the job!

Attached Image

Attached Image

Cut a groove with a triangle file. Worked like charm.

Attached Image

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
puffinator
post Oct 12 2014, 04:02 PM
Post #11


Member
**

Group: Members
Posts: 193
Joined: 6-August 13
From: Annapolis, MD
Member No.: 16,218
Region Association: MidAtlantic Region
QUOTE(cary @ Sep 16 2014, 11:08 PM) *

Nuts did the job!

Cut a groove with a triangle file. Worked like charm.



same problem. would you sell one of your nuts?
Rob
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Oct 12 2014, 06:39 PM
Post #12


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
I can do that ..................
Going work in the middle of the night. So I might run out to my shop in the afternoon.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Kansas 914
post Oct 13 2014, 09:38 AM
Post #13


Advanced Member
****

Group: Members
Posts: 2,999
Joined: 1-March 03
From: Durango, Colorado
Member No.: 373
Region Association: Rocky Mountains
QUOTE(cary @ Oct 12 2014, 06:39 PM) *

I can do that ..................
Going work in the middle of the night. So I might run out to my shop in the afternoon.

Can you confirm these are 18mm 1.0 threads? I need to do this as well. You might can make some decent money for these prepped with the "V" to cut threads for gas tanks.

I would buy one.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Oct 13 2014, 06:51 PM
Post #14


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
Confirm : 18m * 1.0.
Might give it some consideration. But I'd need to buy a bigger V vile. And something to clean the threads with.
When you start to tidy up the threads The main thing is to use oil cutting oil.
Then only turn about a 1/4 to 1/3rd of a turn. Back it off. Clean it again.
Rinse and repeat.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Eric_Shea
post Oct 14 2014, 07:07 PM
Post #15


PMB Performance
***************

Group: Admin
Posts: 19,289
Joined: 3-September 03
From: Salt Lake City, UT
Member No.: 1,110
Region Association: Rocky Mountains
QUOTE
would you sell one of your nuts?


(IMG:style_emoticons/default/blink.gif)

I knew it would come to this. Andy... time to shut'r down. (IMG:style_emoticons/default/sad.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Kansas 914
post Oct 14 2014, 07:10 PM
Post #16


Advanced Member
****

Group: Members
Posts: 2,999
Joined: 1-March 03
From: Durango, Colorado
Member No.: 373
Region Association: Rocky Mountains
QUOTE(Eric_Shea @ Oct 14 2014, 07:07 PM) *

QUOTE
would you sell one of your nuts?


(IMG:style_emoticons/default/blink.gif)

I knew it would come to this. Andy... time to shut'r down. (IMG:style_emoticons/default/sad.gif)

(IMG:style_emoticons/default/lol-2.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Oct 14 2014, 07:25 PM
Post #17


Custom Member
***************

Group: Members
Posts: 24,704
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
QUOTE(Eric_Shea @ Oct 14 2014, 09:07 PM) *

QUOTE
would you sell one of your nuts?


(IMG:style_emoticons/default/blink.gif)

I knew it would come to this. Andy... time to shut'r down. (IMG:style_emoticons/default/sad.gif)

Sure, someone talks about selling a nut and Eric comes out of hiding.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Eric_Shea
post Oct 14 2014, 07:33 PM
Post #18


PMB Performance
***************

Group: Admin
Posts: 19,289
Joined: 3-September 03
From: Salt Lake City, UT
Member No.: 1,110
Region Association: Rocky Mountains
Not hiding. "still" at the shop. As you can see, I still have to vaccum. (IMG:style_emoticons/default/sad.gif)

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
sbsix
post Oct 15 2014, 03:44 PM
Post #19


only the lead dog enjoys a change in scenery...
**

Group: Members
Posts: 455
Joined: 10-January 12
From: Santa Barbara, CA
Member No.: 13,990
Region Association: Southern California
Eric, vacuuming and drinking beer do not mix.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Kansas 914
post Oct 16 2014, 07:43 AM
Post #20


Advanced Member
****

Group: Members
Posts: 2,999
Joined: 1-March 03
From: Durango, Colorado
Member No.: 373
Region Association: Rocky Mountains
QUOTE(cary @ Oct 13 2014, 06:51 PM) *

Confirm : 18m * 1.0.
Might give it some consideration. But I'd need to buy a bigger V vile. And something to clean the threads with.
When you start to tidy up the threads The main thing is to use oil cutting oil.
Then only turn about a 1/4 to 1/3rd of a turn. Back it off. Clean it again.
Rinse and repeat.

Thanks Cary.

I am having a tough time sourcing these. Where did you get yours? Is there a Dorman number?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

2 Pages V  1 2 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 18th January 2025 - 05:13 PM
Invision Power Board v9.1.4 © 2025  IPS, Inc.
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 ...