Broken tank strap - how hard to replace?

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Broken tank strap - how hard to replace?

Postby Gary. » 03 Jan 2018, 12:00

I've just clocked the off-side tank strap has broken due to excessive corrosion. God knows why they used crappy steel for these, just seems daft to me.

I've had a good rummage on the net and can't find any clear information on whether it is possible to replace these without removing half of the vehicle?

Could anybody provide some links or advise on a simple way forward?

Thanks
Gary.

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Re: Broken tank strap - how hard to replace?

Postby Jim San » 03 Jan 2018, 13:41

Good news is if the other breaks and the tank falls - it'll just land on the gearbox :roll:

No easy way, gearbox out the way, drop the tank to get to the straps. It was too much for me so I had it done. Its a good opportunity to get to and sort the rust behind there (there is a sound damping pad which also holds a lot of moisture) - which I didn't replace

Stainless steel straps now fitted, all breathers replaced and stainless coolant pipes replaced at the same time.
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Re: Broken tank strap - how hard to replace?

Postby Gary. » 03 Jan 2018, 16:28

Oh bugger. Think I might be temporarily improvising with some large zip ties!

:ok
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Re: Broken tank strap - how hard to replace?

Postby Aidan » 04 Jan 2018, 02:39

off side can't drop by much as chassis rail holds the tank in place on that side
if you are clever and clean up the threaded section (run a tap up it with rost-of before trying to undo the nuts) and remove the remains of the broken lower strap without damaging the upper strap then you can just replace the lower strap which can be done with gearbox in place
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Re: Broken tank strap - how hard to replace?

Postby Gary. » 04 Jan 2018, 14:44

Aidan wrote:off side can't drop by much as chassis rail holds the tank in place on that side
if you are clever and clean up the threaded section (run a tap up it with rost-of before trying to undo the nuts) and remove the remains of the broken lower strap without damaging the upper strap then you can just replace the lower strap which can be done with gearbox in place


Thanks, that's more like it. I'll get it over the pit and have a poke about.
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Re: Broken tank strap - how hard to replace?

Postby Syncrobaz » 05 Jan 2018, 12:38

I fitted a pair to our doka using Aidan's 'top tip', works a treat ! :wink:
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Re: Broken tank strap - how hard to replace?

Postby Gary. » 05 Jan 2018, 15:15

Syncrobaz wrote:I fitted a pair to our doka using Aidan's 'top tip', works a treat ! :wink:


Once again, correct response! As usual, I asked on here before having a proper look underneath. Seems the near side strap is more of a considerable 'saddle', which looks OK. Looks like I have plenty of thread and I suspect just running a nut up and down would tidy it up:

Image

Can I jut buy a replacement strap or do I need to fabricate something?
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Re: Broken tank strap - how hard to replace?

Postby Syncrobaz » 05 Jan 2018, 17:18

I used Brickwerks stainless set, pricey but they fit, saved the unused threaded parts for when the gearbox breaks !
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Re: Broken tank strap - how hard to replace?

Postby silverbullet » 05 Jan 2018, 17:47

BTW the tank straps aren't made from crappy steel, its just that they were'n meant to last this long!
I saved a pair with a gentle bead blast, a little welding where they were thin and then some heavy zinc electroplating, red lead primer (the real stuff) and then several coats of acrylic tough paint.

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Re: Broken tank strap - how hard to replace?

Postby Gary. » 05 Jan 2018, 19:07

silverbullet wrote:BTW the tank straps aren't made from crappy steel, its just that they were'n meant to last this long!


It's odd that the straps have failed, though most of the underneath is very clean rust free (for a UK vehicle!). Thanks for the advice, I'll post my resolution when I figure it out.
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Re: Broken tank strap - how hard to replace?

Postby Aidan » 07 Jan 2018, 09:26

your vacuum unit is on upside down to normal, hoses at the bottom, on a petrol it can't be fitted any other way because of the starter motor, now I know it can be done the other way on a diesel, every day a school day
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Re: Broken tank strap - how hard to replace?

Postby Gary. » 29 Jan 2018, 20:13

Aidan wrote:your vacuum unit is on upside down to normal, hoses at the bottom, on a petrol it can't be fitted any other way because of the starter motor, now I know it can be done the other way on a diesel, every day a school day


That unit has been on & off a few times, but never changed the orientation. The bloody actuator shaft is really stiff so does not currently work, but I'm a little afraid to take it all apart to rectify.

Regarding the o/s tank strap, the front bolt is impossible to get a 13m socket on it due to coolant pipes and gearbox mounts. The rear threaded bar sheared when I tried to remove the nut, whoops!

Maybe a trip to Wales is on the cards!
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Re: Broken tank strap - how hard to replace?

Postby silverbullet » 30 Jan 2018, 10:03

Dropping the fuel tank used to be a syncronauts rite of passage, it seems to have become somewhat passé in recent years...

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Re: Broken tank strap - how hard to replace?

Postby Gary. » 30 Jan 2018, 10:07

I'm not too keen on dismantling so much on such a low mileage vehicle, rather wait for something to go wrong first!
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Re: Broken tank strap - how hard to replace?

Postby silverbullet » 30 Jan 2018, 13:41

Mileage means nothing! 10 year design life and we're well past that...

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