Author Topic: alloy fuel tank - threaded outlet  (Read 6735 times)

0 Members and 1 Guest are viewing this topic.

Offline Davey Crocket

  • Legend
  • *****
  • Posts: 4408
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #15 on: April 05, 2010, 07:34:18 pm »
 ;D ;D ;D
QVMX.....Australia's #1 VMX club......leading the way.

Offline GMC

  • Legend
  • *****
  • Posts: 3693
  • Broadford, Vic
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #16 on: April 05, 2010, 08:05:19 pm »
I have fixed tanks like this before, I just cut a new thread on the lathe & weld the piece on the tank, looks much the same as original.
Allow $66.00 plus postage to have something like that done.
Dearer than teflon, but it's done properly.
G.M.C.  Bringing the past into the future

Shock horror, its here at last...
www.geoffmorrisconcepts.com

For the latest in GMC news...
http://www.geoffmorrisconcepts.com/8/news/

Offline Davey Crocket

  • Legend
  • *****
  • Posts: 4408
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #17 on: April 05, 2010, 08:14:36 pm »
Thats the go Paul, get it done by royalty..... none other than Prince Geoffery of the Morris principality!!!. If you can get it to 090 or Dodgee tomorrow we can take it down to his Royal Highness as he is doing some other repairs for us.
QVMX.....Australia's #1 VMX club......leading the way.

Offline pmc57

  • A-Grade
  • ****
  • Posts: 486
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #18 on: April 05, 2010, 08:20:37 pm »
Bugger, I was waiting on all the plumbers to have a good dummy spit over this one. Stew, you defused it with your option of leaving it go through to the keeper, but I agree with GMC's best option, fixed until someone cross threads it again.

Offline Rossvickicampbell

  • Legend
  • *****
  • Posts: 3779
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #19 on: April 05, 2010, 08:24:28 pm »
with regards the shrinking inner seals - leave the "spare" one soaking in some of that "stuff" you buy from auto shops for old engines to stop smoking exhaust - apparently it causes a heap of 'swell" inside the engine and does the same thing to the inner fuel tap seal.  Have tried it once and it worked a treat!  ;D

Thanks Bill ;D

cheers

Rossco
1974 Yamaha YZ360B
1980 Honda CR250R - Moto X Fox Replica

mainline

  • Guest
Re: alloy fuel tank - threaded outlet
« Reply #20 on: April 05, 2010, 08:44:08 pm »
Sounds like a plan, i'll try and get on to dodgee tomorrow. Otherwise Stu's idea might be worth a try

Offline Davey Crocket

  • Legend
  • *****
  • Posts: 4408
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #21 on: April 05, 2010, 09:11:53 pm »
Their leaving tomorrow about 5 or 6pm for Mehico, give them a ring.
QVMX.....Australia's #1 VMX club......leading the way.

Offline vandy010

  • Legend
  • *****
  • Posts: 1982
  • #789 MX125a BMCC Brisbane
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #22 on: April 05, 2010, 10:04:42 pm »
steel YZ tanks have a brass thread {same thread pitch as the alloy YZ tank}.
it's the same as some Oxy threads. pretty common with oxy/actylene gear.
plumbers would know.
cause us boily's do ;D
if your really stuck you could braze one in.
and be buggered if i'd buy a feul tap for $70 :o
you can get one from a small yammy road bike {same thread} available from Yambits in the UK/ebay
deilvered to your door for much less than the Davey Crocket price.
"flat bickie"

monaro308

  • Guest
Re: alloy fuel tank - threaded outlet
« Reply #23 on: April 05, 2010, 10:49:22 pm »
Bugger, I was waiting on all the plumbers to have a good dummy spit over this one. Stew, you defused it with your option of leaving it go through to the keeper, but I agree with GMC's best option, fixed until someone cross threads it again.
The plumbers are out with their gaylux 4wd and fishing boats on one of their 600 RDO's a month  ;D

Offline Rossvickicampbell

  • Legend
  • *****
  • Posts: 3779
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #24 on: April 05, 2010, 11:07:03 pm »
YZB fuel tap - NOS - delievered to the door for about $35 - lots on Ebay US
1974 Yamaha YZ360B
1980 Honda CR250R - Moto X Fox Replica

Offline Freakshow

  • Superstar
  • ******
  • Posts: 7277
  • Adelaide, SA - looking for a "YZA" tank
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #25 on: April 05, 2010, 11:50:12 pm »
if thats the same taps as i seen advertised there not the torpedo type the original YZ taps where, there those stupid round ones with the on,res , off etc and worth $5, post the link Rossco, lets see which ones yer on about
74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline Lozza

  • Legend
  • *****
  • Posts: 4206
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #26 on: April 06, 2010, 12:31:06 am »
Jesus only loves two strokes

Offline vandy010

  • Legend
  • *****
  • Posts: 1982
  • #789 MX125a BMCC Brisbane
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #27 on: April 06, 2010, 08:16:23 am »
needs to be a die nut Lozza
"flat bickie"

Offline Lozza

  • Legend
  • *****
  • Posts: 4206
    • View Profile
Re: alloy fuel tank - threaded outlet
« Reply #28 on: April 06, 2010, 09:29:33 am »
needs to be a die nut Lozza

Noooo it needs  a THREAD FILE
Jesus only loves two strokes

mainline

  • Guest
Re: alloy fuel tank - threaded outlet
« Reply #29 on: April 06, 2010, 10:28:58 am »
mmmm..... that looks like you could do some damage with it.

Having another look at the offending item (after removing all the thread tape the plumber put on it) most of the thread at the top of the male piece is pretty good. Given that the nut only engages about three turns at best, I'm going to try cutting a few mm off and retapping/cleaning up the remaining thread and see how that goes.

I might steer clear of Lozza's latest find in the field of thread repair weaponry and buy a die nut instead.