Petrol tank corrosion

Includes fuel system, cooling system and exhaust.

Moderators: reidy, Blacky

Post Reply
User avatar
bettyispsycho
Posts: 13
Joined: Tue Nov 04, 2008 12:23 pm
State: NOT ENTERED
Location: Melbourne

Petrol tank corrosion

Post by bettyispsycho »

Hey there!

My FB petrol tank is corroding on the upside (so into the boot)
The smell is making for some serious petrol head moments and dizziness - Not as fun at is sounds :deaddd:

Can anyone recommend somewhere to take the old girl to get this sorted? Preferably someone that's not a rip off and knows what they are doing/enjoys working on old cars.

Thanks very much! :clap:
User avatar
Devilrod
Posts: 7394
Joined: Fri Apr 30, 2004 12:55 pm
State: VIC
Location: Beaconsfield, Vic

Re: Petrol tank corrosion

Post by Devilrod »

bettyispsycho wrote:Hey there!

My FB petrol tank is corroding on the upside (so into the boot)
The smell is making for some serious petrol head moments and dizziness - Not as fun at is sounds :deaddd:

Can anyone recommend somewhere to take the old girl to get this sorted? Preferably someone that's not a rip off and knows what they are doing/enjoys working on old cars.

Thanks very much! :clap:
How bad is it? Post up a pic. You could do the cheap and nasty fix using kneed-it if its only a couple of holes. I've repaired a tank like this on the side of a road and never touched it again. Or if its really bad you can get the POR15 tank repair kit but that's a do it yourself type thing. Unless you can talk the guy selling it into doing it for you? Otherwise I can't really recommend anyone to do it around where you are, maybe talk to a radiator repair place and see if they can do it.
Speed and Style........... One day I'll get the speed bit.
User avatar
bettyispsycho
Posts: 13
Joined: Tue Nov 04, 2008 12:23 pm
State: NOT ENTERED
Location: Melbourne

Re: Petrol tank corrosion

Post by bettyispsycho »

How bad is it? Post up a pic. You could do the cheap and nasty fix using kneed-it if its only a couple of holes. I've repaired a tank like this on the side of a road and never touched it again. Or if its really bad you can get the POR15 tank repair kit but that's a do it yourself type thing. Unless you can talk the guy selling it into doing it for you? Otherwise I can't really recommend anyone to do it around where you are, maybe talk to a radiator repair place and see if they can do it.
Thanks for the advice DevilRod!

It's not very bad by the looks of it? Just in a few small spots.. I have already done the old cheap and nasty knead-it job.

On closer inspection it looks like there are a few tiny pin holes i've missed where it's now getting through!

I think for now some more knead-it is the go-er, but it's good to know about this POR15 tank repair kit.. I have a friend that would probably do it for a slab of beer :grinnn:
bootlegger
Posts: 2070
Joined: Sat Sep 26, 2009 7:52 pm
State: NOT ENTERED
Location: sydney

Re: Petrol tank corrosion

Post by bootlegger »

I do a heap of tanks. You probably dont want to hear this but if you have a tiny pin hole the other side will be rust about ten mm in diameter. I usually split the tsnks and get them sandblasted Inside and the weld them back togetber repairing the holes.
I did a bike tank that way today.
When you use the tank liner kits follow the Instructions to the letter. Having said that ive have a few fail and then you have another pro
20150217_112921.jpg
20150217_112921.jpg (84.83 KiB) Viewed 1236 times
blen trying to get the liner out.
I dont like using the liners but I still do them because I cant think of another way of sealing the tank from rusting after its welded.
Its labour intensive and expensive. A tank liner kit for a bike is about $80. A car one is more than double that plus all the labour
User avatar
bettyispsycho
Posts: 13
Joined: Tue Nov 04, 2008 12:23 pm
State: NOT ENTERED
Location: Melbourne

Re: Petrol tank corrosion

Post by bettyispsycho »

SunnyTim wrote:I would use the KBS tank repair kit. Made in Australia, the same as POR15 but cheaper by miles
Thanks for the tip SunnyTim!! :D
User avatar
bettyispsycho
Posts: 13
Joined: Tue Nov 04, 2008 12:23 pm
State: NOT ENTERED
Location: Melbourne

Re: Petrol tank corrosion

Post by bettyispsycho »

bootlegger wrote:I do a heap of tanks. You probably dont want to hear this but if you have a tiny pin hole the other side will be rust about ten mm in diameter. I usually split the tsnks and get them sandblasted Inside and the weld them back togetber repairing the holes.
I did a bike tank that way today.
When you use the tank liner kits follow the Instructions to the letter. Having said that ive have a few fail and then you have another pro
20150217_112921.jpg
blen trying to get the liner out.
I dont like using the liners but I still do them because I cant think of another way of sealing the tank from rusting after its welded.
Its labour intensive and expensive. A tank liner kit for a bike is about $80. A car one is more than double that plus all the labour
Hey bootlegger - I am totally prepared for the worst with this. Its been leaking for a while. I can't work out how to post a pic here?
After having the car warmed up and idling for about 10mins I noticed it coming through a couple of pin holes near the original spots I had patched with epoxy (knead-it)
The patched spots are about the size of a 20cent piece. Would replacing the tank be a better alternative? Thanks for all the suggestions :)
User avatar
Devilrod
Posts: 7394
Joined: Fri Apr 30, 2004 12:55 pm
State: VIC
Location: Beaconsfield, Vic

Re: Petrol tank corrosion

Post by Devilrod »

SunnyTim wrote:I would use the KBS tank repair kit. Made in Australia, the same as POR15 but cheaper by miles
Thanks Tim, couldn't remember the name of the Aussie one!

You can always get another tank, just check it carefully first to make sure it's not too rusty or full of pin holes..
Speed and Style........... One day I'll get the speed bit.
User avatar
bettyispsycho
Posts: 13
Joined: Tue Nov 04, 2008 12:23 pm
State: NOT ENTERED
Location: Melbourne

Re: Petrol tank corrosion

Post by bettyispsycho »

Devilrod wrote:
SunnyTim wrote:I would use the KBS tank repair kit. Made in Australia, the same as POR15 but cheaper by miles
Thanks Tim, couldn't remember the name of the Aussie one!

You can always get another tank, just check it carefully first to make sure it's not too rusty or full of pin holes..

Really appreciate all the advice - this KBS one looks great! A friend of mine (who loves fb's) and has his own garage would probably help me do this.
Will give this a go first and if it fails then i'll try out the other options!! :peaceout:
Dirty Grey
Posts: 14
Joined: Sun Mar 30, 2014 9:50 pm
State: NOT ENTERED
Location: Melbourne

Re: Petrol tank corrosion

Post by Dirty Grey »

There is good videos on U tube from KBS on their tank sealing kits and I've heard good reports from a mate who used it on his FE
Post Reply