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how close?
RedAvon - 18/5/10 at 03:02 PM

My petrol tank (with fuel) sits in between the rear box section chassis and i can't get it out without taking off the body.

How close to the fuel tank can i weld brackets onto the chassis rails. I.e. not welding the tank itself but welding onto the rails around it - with a MIG Clarke 151TE?

Thanks


BenB - 18/5/10 at 03:04 PM

Depends how much life insurance you have Personally I wouldn't fancy it- seen the consequences....


Ben_Copeland - 18/5/10 at 03:05 PM

Welding and petrol fumes don't mix!


jossey - 18/5/10 at 03:09 PM

owwww fire starter can i come watch :O)


Lars - 18/5/10 at 03:19 PM

I would suggest draining the tank and filling with water.
It's a pita, but a lot safer


Lars - 18/5/10 at 03:21 PM

That said how close do you want to weld?


Staple balls - 18/5/10 at 03:22 PM

Can I watch?


will121 - 18/5/10 at 03:23 PM

how close are you calling close, risk is not always how close you are to the actual steel fabric of the tank (long as no pin holes in it) but how close you are to vapour routes like, filler vents and outlets, mig sparks can travel a few feet in any direction if not shielded with same disastrous results as if 6" away. its a caculation of risk, likelyhood and precautions.


RedAvon - 18/5/10 at 03:24 PM

The tank is about an inch clear of the frame and i want to weld some small brackets for brake pipes on the box section on the side away from the tank - just dont want to take the body off and the tank out - unless this isnt too bad a job?

Thanks


Rod Ends - 18/5/10 at 03:42 PM

quote:
... you've got to ask yourself one question: Do I feel lucky? Well, do ya, punk?


AdamR - 18/5/10 at 03:53 PM

quote:
Originally posted by RedAvon
The tank is about an inch clear of the frame and i want to weld some small brackets for brake pipes on the box section on the side away from the tank - just dont want to take the body off and the tank out - unless this isnt too bad a job?

Thanks


Easy. Use rivets.


Staple balls - 18/5/10 at 03:54 PM

quote:
Originally posted by Rod Ends
quote:
... you've got to ask yourself one question: Do I feel lucky? Well, do ya, punk?






Lars - 18/5/10 at 04:00 PM

quote:
Originally posted by Staple balls
quote:
Originally posted by Rod Ends
quote:
... you've got to ask yourself one question: Do I feel lucky? Well, do ya, punk?









very good


mangogrooveworkshop - 18/5/10 at 04:10 PM

Oh yes thats fantastic


bi22le - 18/5/10 at 05:00 PM

As said before. Its all about the vapour trail.

Empty tank (I wouldnt fill it with water) and extend any outlets away from the area. Do it in a ventilated area.

Oh and have a fire extinguisher on hand!

Goodluck


BenB - 18/5/10 at 05:27 PM

How close?

This is close:

http://news.bbc.co.uk/1/hi/8683750.stm


Paul TigerB6 - 18/5/10 at 06:13 PM

I cant see you'd have a problem to be honest if you aren't welding right by a fuel outlet. You have an inch between the tank and chassis rail - so why not put a wooden board between the two as an insulating shield??


se7en - 18/5/10 at 06:47 PM

quote:
Originally posted by Staple balls
quote:
Originally posted by Rod Ends
quote:
... you've got to ask yourself one question: Do I feel lucky? Well, do ya, punk?








Real quality


kb58 - 18/5/10 at 08:11 PM

I was going to ask when you're going to do it, but since I'm in California, I figure I'll hear it go off...


whitestu - 18/5/10 at 08:36 PM

I remember welding my brothers Alfasud near to the petrol tank when I was about 18.

We had the fuel filler disconnected to gain access, with my brother plugging the filler with damp cloths.

I finished the weld to see my bother chatting with a neighbour and flames coming out of the filler pipe!

Didn't blow up though

[Edited on 18/5/10 by whitestu]


richard - 18/5/10 at 09:09 PM

can you not drill and bolt / rivet/ rivnut/ clamp the brackets you need to fit instead for now until you ever have the body off.
Rich


RedAvon - 18/5/10 at 09:42 PM

is it ok to rivet/bolt the brake brackets to support the copper pipe/flexi hose onto the chassis for IVA tho' ?

Thanks


Wumps - 18/5/10 at 09:59 PM

quote:
Originally posted by RedAvon
is it ok to rivet/bolt the brake brackets to support the copper pipe/flexi hose onto the chassis for IVA tho' ?

Thanks


This is what I intended to do, surely seen as secure enough.


40inches - 19/5/10 at 07:39 AM

quote:
Originally posted by RedAvon
is it ok to rivet/bolt the brake brackets to support the copper pipe/flexi hose onto the chassis for IVA tho' ?

Thanks


P clips etc: are the usual method
Brake line
Brake line


RedAvon - 19/5/10 at 03:52 PM

i mean these bits - pic of someone elses car - mine dont have any welded to the chassis where the flexis connect to the copper through a bracket - will anything except welding pass IVA?


40inches - 19/5/10 at 04:16 PM

Thats how I have done mine

Flexy bracket
Flexy bracket


RedAvon - 21/5/10 at 12:17 PM

Thanks folks - don't think I'm going to try the welding option then will use rivets.