Author Topic: tank liners  (Read 4596 times)

Offline mickwinf

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tank liners
« on: August 06, 2019, 05:15:09 PM »
fed up with rusty bits from the tank getting through to the carbs so decided to de rust (again) and use a tank liner. I have got the flowliner rust remover and the liner, has anyone used these products and did they work?
Love the 500 and 550 have a 500 called Lazarus under restoration

Offline Trigger

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Re: tank liners
« Reply #1 on: August 06, 2019, 06:14:56 PM »
I have never come across a tank liner that worked long time, they will fail in a year to two.  ;)

Offline deltarider

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Re: tank liners
« Reply #2 on: August 06, 2019, 06:31:56 PM »
Best advice I can give: do NOT do it yourself but look for a known good company that knows how to do this. Ask around.

Offline MrDavo

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Re: tank liners
« Reply #3 on: August 07, 2019, 01:47:21 AM »
Mine failed within months on my CB750, the only viable solution was a new tank.
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Offline royhall

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Re: tank liners
« Reply #4 on: August 07, 2019, 07:28:41 AM »
The liner on my GS1000 failed after one fill up.
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Offline mickwinf

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Re: tank liners
« Reply #5 on: August 07, 2019, 08:54:43 AM »
hmm interesting, i have used a liner before and it seemed to work ok but i didn't keep the bike for long. The problem is the rust returns  a short time after being cleaned. I have not been able to ride my bike for weeks and had to remove carbs to clean them out, so what do i do?
Love the 500 and 550 have a 500 called Lazarus under restoration

Offline K2-K6

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Re: tank liners
« Reply #6 on: August 07, 2019, 09:01:16 AM »
You could try running it with a tank of 100 to 1 two stroke oil mix to see if will prevent rust establishment in the tank.

Its not enough to make any significant difference to running the engine but may help out with corrosion.

Offline AshimotoK0

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Re: tank liners
« Reply #7 on: August 07, 2019, 09:03:26 AM »
hmm interesting, i have used a liner before and it seemed to work ok but i didn't keep the bike for long. The problem is the rust returns  a short time after being cleaned. I have not been able to ride my bike for weeks and had to remove carbs to clean them out, so what do i do?

I am going to try the hydrolysis method discussed on the internet a lot. My only twist is that I am going to make the electrode a piece of 6mm Bowden cable (316 stainless) and enclose in in the plastic netting you get to protect machine tools and parts. That way there will be metal exposed for electrolysis to take place but also an insulating barrier to prevent contact of the electrode with the metal of the tank. The flexibility of the electrode will allow you to 'snake' the assembly aound inside to parts not easily reached with a non-insulted electrode. Going to try it soon so I will keep you posted  :)

BTW I agree with tank linings being decidedly dodgy and never used one .
« Last Edit: August 07, 2019, 09:05:14 AM by AshimotoK0 »
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Offline royhall

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Re: tank liners
« Reply #8 on: August 07, 2019, 09:44:01 AM »
There's a place in Dorset that has good results with liners, will get the name when I get home tonight.

Current bikes:
TriBsa CCM 350 Twin
Honda CB350F in Candy Bacchus Olive
Honda CB750F2 in Candy Apple Red
Triumph Trident 660 in Black/White
Triumph T100C
Suzuki GS1000HC
Honda CB450K0 Black Bomber
Honda CB750K5 in Planet Blue Metallic (Current Project)

Offline royhall

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Re: tank liners
« Reply #9 on: August 07, 2019, 02:37:35 PM »
These are the guys. Never used them myself so far but am considering sending the GS1000 tank when it's back from the welders. I have heard good reviews about them and I got the link from a recommendation. But as I say I have not used them personally yet. https://www.biketankrepair.co.uk/
Current bikes:
TriBsa CCM 350 Twin
Honda CB350F in Candy Bacchus Olive
Honda CB750F2 in Candy Apple Red
Triumph Trident 660 in Black/White
Triumph T100C
Suzuki GS1000HC
Honda CB450K0 Black Bomber
Honda CB750K5 in Planet Blue Metallic (Current Project)

Offline Trigger

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Re: tank liners
« Reply #10 on: August 07, 2019, 10:07:28 PM »
A liner is temporary repair and a welded or brazed is a permanent job so, why try to put a liner in after  :o

Offline Menno

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Re: tank liners
« Reply #11 on: August 08, 2019, 12:34:13 AM »
I have lined many tanks and there are some points of attention:

If you line a tank make sure it is completely dry on the inside.

A tank which has been lined before will be very difficult to line again.
Often the new liner will react with the old resulting in lining failure.

After lining uncountable amount of tanks in the past only the ones with a previous liner still in them failed.

Lining is a way to extent the life of a tank for a couple of years.
How long exactly depends on the correct way of lining.

At the moment I have a BMW tank which has been lined in 1983 with lining still perfectly in place.

I do however strongly advise only to line if the tank is leaky.
If a tank is not leaky simply de-rust and fill it up with gasoline.

If you store the bike for a longer period make sure to replace the gasoline once a year.
The chemicals nowadays in gasoline attract water.
As soon as the gasoline 'turns' the tank will - even wenn completely filled up - start rusting.

Offline K2-K6

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Re: tank liners
« Reply #12 on: August 08, 2019, 07:19:09 AM »
Any treatment of steel surfaces has risk attached to it.

When it was originally produced  in a steel rolling mill, the final surface of steel sheet is effectively close to forged from being rolled to it's guage. That finish is reasonably resistant to corrosion and more so than interior structure.

Once that surface refinement has been compromised it's effectively been more prepared to corrode.  That would include corrosion,  acid dipping,  electrolysis etc. From an ongoing perspective you are really on the back foot to prevent more corrosion taking place,  there's not an easy answer.

Offline Trigger

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Re: tank liners
« Reply #13 on: August 08, 2019, 07:53:54 AM »
I have good results by draining the fuel off and filling with diesel for storage  ;)

Offline K2-K6

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Re: tank liners
« Reply #14 on: August 08, 2019, 08:24:54 AM »
I have good results by draining the fuel off and filling with diesel for storage  ;)

Agree that some sort of oil may be easiest way rather than more invasive method.

It may be worth weak two stroke mix for low usage if they are not drained down,  worth an assessment maybe?

 

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