Rotary Car Performance General Rotary Car and Engine modification discussions.

Passing Wires Into Fuel Tank? Bulkhead/Passthrough?

Thread Tools
 
Search this Thread
 
Old Mar 28, 2006 | 04:36 PM
  #1  
Aaron Cake's Avatar
Thread Starter
Engine, Not Motor
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
Passing Wires Into Fuel Tank? Bulkhead/Passthrough?

I'm currently modifying the stock 2nd gen fuel pump flange for AN bulkhead connectors but aside from the corrosion problems (those things rust like crazy!) it looks like I am going to be very short on space. The stock flange has 3 large wire passthroughs and has placed the level sender in an awkward place. There isn't a lot of room to work and I'm assuming that I will very quickly find out that the -8 feed and -6 return will not fit.

So I am thinking that I need to make another flange. No big deal really, but one thing is stopping me...How can I get the two wires for the fuel level sender safely into the tank? I've spent about 5 hours searching this forum, Google and all the EFI forums for some kind of bulkhead or passthrough, but only came up with one picture (attached to this message) yet no source.

I'm trying to avoid cable glands or messing with sealing wires via silicone unless I really, really have to. The stock passthroughs appear to be molded to the stock flange, so they can't be transferred.

If worse comes to worse I will have to drill and tap the center of a plastic bolt, insert a section of threaded rod and then seal each end with an o-ring. But I have to believe that someone somewhere has made such a part (as I have a picture of one attached). Now all I need is a source.

Thanks!
Attached Thumbnails Passing Wires Into Fuel Tank? Bulkhead/Passthrough?-fuel-tank-electrical-bulkhead.jpg  
Reply
Old Mar 29, 2006 | 12:21 AM
  #2  
Carl Byck's Avatar
Mad Man
Tenured Member: 20 Years
 
Joined: Jan 2002
Posts: 2,758
Likes: 2
From: Big Island Hawaii
Aaron, use a bulkhead fitiing, and fill it with epoxy, passes SCCA, and NASA inpection. Carl
Reply
Old Mar 29, 2006 | 10:28 AM
  #3  
Aaron Cake's Avatar
Thread Starter
Engine, Not Motor
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
I'm kind of looking for something a little more elegant.

In all my searching it seems that such a thing doesn't actually exist, so I'll probably end up making my own.
Reply
Old Mar 29, 2006 | 02:05 PM
  #4  
T04Eneedy's Avatar
adiabaticly inefficient
Tenured Member 10 Years
 
Joined: Aug 2001
Posts: 386
Likes: 0
From: nw houston,TX or w. hollywood,CA
summitracing.com sells them iirc
Reply
Old Mar 29, 2006 | 03:27 PM
  #5  
Aaron Cake's Avatar
Thread Starter
Engine, Not Motor
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
SummitRacing sells large passthroughs for battery cable, but nothing small. First place I checked. I think I have it solved though. I'm going to make a set of passthroughs. I'll post pictures here when I'm done.
Reply
Old Apr 1, 2006 | 10:13 AM
  #6  
ecarver2's Avatar
local Celebrity
Tenured Member 05 Years
 
Joined: Sep 2005
Posts: 452
Likes: 0
From: South Eastern Mass.
yes, I am very interested to see your end product.
Reply
Old Aug 7, 2006 | 11:08 AM
  #7  
Aaron Cake's Avatar
Thread Starter
Engine, Not Motor
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
I just posted a thread that covers my passthrough solution:

https://www.rx7club.com/forum/showthread.php?t=566383
Reply
Old Aug 8, 2006 | 07:46 PM
  #8  
CMonakar's Avatar
rebreaking things
Tenured Member 05 Years
 
Joined: Apr 2006
Posts: 866
Likes: 0
From: Manhattan
Fuel Safe sells two different bulk head fittings for in tank fuel pumps . . .
Reply
Old Aug 11, 2006 | 09:48 AM
  #9  
Aaron Cake's Avatar
Thread Starter
Engine, Not Motor
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
Ah dammit, I just downloaded FuelSafe's catalog and it has exactly what I need. I'll file that away for future reference.
Reply
Old Aug 16, 2006 | 08:01 PM
  #10  
a7r's Avatar
a7r
Senior Member
Tenured Member 10 Years
 
Joined: Aug 2001
Posts: 271
Likes: 0
From: Santa Barbara, CA
Deutsch makes a hermetically sealed connector designed for motorsports fuel tank usage:

http://www.deutschltd.com/corporate/...r_ftc_spec.asp

.. it's too expensive for my projects, but it's avaliable.
Reply
Old Aug 17, 2006 | 08:26 AM
  #11  
Aaron Cake's Avatar
Thread Starter
Engine, Not Motor
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
Where the hell were you people 6 months ago?
Reply
Old Sep 27, 2019 | 01:37 AM
  #12  
DC5Daniel's Avatar
Rotary Freak
Tenured Member 10 Years
iTrader: (10)
 
Joined: Jul 2012
Posts: 1,631
Likes: 89
From: Peachtree City, GA
13 years later, since all the old links are dead....

Radium now has a solution for those of us in the US:
Electrical Bulkhead Stud Kit, 6 Pack

And the Aussies have an elegant solution as well:
https://www.efihardware.com/products...head-terminals
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
alphawolff
1st Generation Specific (1979-1985)
17
Nov 17, 2015 05:57 PM
KAL797
Test Area 51
0
Aug 11, 2015 03:47 PM




All times are GMT -5. The time now is 08:17 PM.