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Gas Tank
#819225 08/08/20 4:47 pm
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After having my 71 Thunderbolt gas tank painted I found it has a couple of leaks. I know I should have had it pressure tested before having it painted as it has been previously repaired. I have not decided to try to have it repaired again or replace it. I can only find new tanks that are from India. Has anyone used one of these tanks and does it fit like an original one. The one I am looking at has the holes for the tank badges and is sold by VintageBikeUSA for $312.00. Thanks for any help

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Re: Gas Tank
RUSS TILLEY #819229 08/08/20 5:18 pm
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Has anyone used one of these tanks and does it fit like an original one.

1. Stick to previously recommended sellers eg Royal Choppers or Pummy8081

2. Buy in raw steel not painted

3. Assume it will need work on fitting, shape and pressure testing before handing over to a painter even from a recommended seller.

Vintagebikeusa has 100% feedback but only 41 items of feedback and only been on for less than 12 months, from his feedback he buys from Royal Choppers.

Re: Gas Tank
RUSS TILLEY #819273 08/08/20 9:54 pm
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I would look for a good used one.


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
Re: Gas Tank
RUSS TILLEY #819293 08/09/20 12:18 am
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One option might be to try and seal the inside of the tank and any leaks with something like POR-15 or Caswell. These sealers are good at at sealing pinhole leaks but the tank will need careful preparation to derust and degrease the inner. You have to be very careful not to ruin any paintwork with the cleaning chemicals and sealer.


1968 A65 Firebird
1967 B44 Shooting Star
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Re: Gas Tank
RUSS TILLEY #819295 08/09/20 12:23 am
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Try KBS Gas Tank sealer. It is a urethane coating and works well.


Never underestimate the human ability to elevate stupid to a whole new level!.
Re: Gas Tank
RUSS TILLEY #819309 08/09/20 2:15 am
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When my BSA tank was leaking, I sent it to "Moyer Fuel Tank Renu" at gas-tank.com.

They did a great job that's still holding up many years later. And it was way cheaper than a new tank. When they're done, it's LIKE a new tank. It comes back to you primed, so you have to repaint, but it works.

Lannis


"Why do you wear that thing, Dobby?" "This, sir? 'Tis a mark of the house-elf’s enslavement, sir."
Re: Gas Tank
RUSS TILLEY #819321 08/09/20 5:48 am
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I've used POR15 with good success several times. even tanks that had leaks

Re: Gas Tank
RUSS TILLEY #819328 08/09/20 6:48 am
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This will give Lannis a heart attack but agree with him 100%
Get it welded , by professinals if you must or you run the risk of a catastrophic failure at a time when you can least do something about it,

As for how good ae cheap tanks ?
A new bespoke fuel tank made by a reputable proficient tinsmith / pannel beater will cost around a grand
A $ 300 tank will be around 1/3 of the quality .


Bike Beesa
Trevor
Re: Gas Tank
RUSS TILLEY #819363 08/09/20 3:10 pm
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to Lannis and BSA_WM20:

Thanks for the tip on Moyer fuel tank renu.

I have printed out Moyer's information and added it to my files "just in case."

Re: Gas Tank
RUSS TILLEY #819428 08/09/20 10:58 pm
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I have a similar situation with my "68 Lightning.

The bike is a great looking and running bike (now), but there are three dents in the tank.

I considered getting a tank from India, I don't want to take the chance considering quality and paint match.

I have been searching for a nice one for months, with no luck.

There have been one or two used Thunderbolt tank that could be re-painted.

BSA seemed to use many shades of red over the years,

Does anyone know if the tanks are interchangeable and is there a matching red paint available?

That might be a solution for Russ and myself.

Thank you all,
SteveG

Re: Gas Tank
Ragmanx #819438 08/10/20 12:57 am
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Originally Posted by Ragmanx
I have a similar situation with my "68 Lightning.

The bike is a great looking and running bike (now), but there are three dents in the tank.

I considered getting a tank from India, I don't want to take the chance considering quality and paint match.

I have been searching for a nice one for months, with no luck.

There have been one or two used Thunderbolt tank that could be re-painted.

BSA seemed to use many shades of red over the years,

Does anyone know if the tanks are interchangeable and is there a matching red paint available?

That might be a solution for Russ and myself.

Thank you all,
SteveG

UNLESS IT IS BLACK DON'T EVEN BEGIN TO HOPE FOR THE PAINT TO BE A PERFECT MATCH. UNLESS THE DENTS ARE IN THE CHROME AREA USE FILLER. I HAVE EVEN HAD SUCCESS TO HAVING A PROFESSIONAL REMOVE DENTS FROM THE CHROME AREAS.


I APOLOGIZE FOR THE USE OF CAPS. I CAN ONLY TYPE WITH MY RIGHT HAND SO USING THE SHIFT KEY IS BEYOND MY CAPABILITES.

The Devil is in the details.

1957 BSA A10 Spitfire Scrambler (numbers matching, very correct, very nice condition)
1965 BSA A65 Lightning Rocket "Clubman" (restored)
1966 BSA A65 Spitfire MK-II (restored)
1967 BSA A65 West Coast Hornet (under restoration)
1975 Norton Commando Roadster (2100 miles)
2001 Kawasaki W650
Re: Gas Tank
RUSS TILLEY #819547 08/10/20 10:56 pm
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The dents are on the chrome portion of the tank and not repairable, as you said.

I will keep my eyes open for a Lightning or Thunderbolt tank and go from there, and overlook the dents for now.

There's a local car painter that is good at matching colors using a computer matching device and a real sharp eye.

Russ - good luck with your tank!

Re: Gas Tank
RUSS TILLEY #819645 08/11/20 7:57 pm
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Dents in the chrome area CAN be removed.

I have seen such tanks repaired by experts, and if done by an expert, the formerly dented chromed area can't be detected.
Ross Thompson of Ontario was a master of this work but, unfortunately, he is now retired and won't take on any more jobs.

Re: Gas Tank
RUSS TILLEY #819661 08/11/20 9:30 pm
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so... if'n ross gone then who?


1972 Triumph T120
1968 BSA A65
1968 MGB Roadster
1979 Chevrolet Camaro Berlinetta
1969 Honda Mini Trail
1939 farmall f30 tractor
2004 Honda Shadow Aero
1972 BSA Thunderbolt
1975 yamaha xs650b
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Re: Gas Tank
Irish Swede #819666 08/11/20 10:19 pm
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Originally Posted by Irish Swede
Ross Thompson of Ontario was a master of this work but, unfortunately, he is now retired and won't take on any more jobs.


You can say that again, his retirement is a huge loss to the biking community. He did the 4 gallon tank on my A65, an excellent job and no one id trust more to do the work.


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (undergoing restoration)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)

Re: Gas Tank
Lannis #819671 08/12/20 12:09 am
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Originally Posted by raf940
so... if'n ross gone then who?


Originally Posted by Lannis
When my BSA tank was leaking, I sent it to "Moyer Fuel Tank Renu" at gas-tank.com.

They did a great job that's still holding up many years later. And it was way cheaper than a new tank. When they're done, it's LIKE a new tank. It comes back to you primed, so you have to repaint, but it works.

Lannis


Allan,

As Lannis has pointed out, Moyer Fuel Tank Renu is a source, for a severely rusted tank anyway.

http://www.gas-tank.com/


Jon W.


1957 6T Thunderbird 650
1968 T100R Daytona 500
1971 TR6R Tiger 650
1970 BSA A65F 650
1955 Tiger 100 - Project
1971 BSA A65 650 - Project
1972 Norton Commando 750 "Combat"


"Every time I listen to AC/DC, so do my neighbors"

Re: Gas Tank
Lannis #819880 08/13/20 10:51 pm
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Thanks for the information. I took my tank to Moyer Fuel Tank Renu today. They are only 130 miles from me. Jim showed me the process they use to repair motorcycle tanks. The estaiment was 350-400 and 2-3 weeks for repair. I will post again when I get the tank back

1 member likes this: Jon W. Whitley
Re: Gas Tank
RUSS TILLEY #819952 08/14/20 5:50 pm
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What do they do about the inside sealing with a chrome tank?


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
1965 Cyclone Competition Build
Re: Gas Tank
Gary E #819957 08/14/20 6:07 pm
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Originally Posted by Gary E
What do they do about the inside sealing with a chrome tank?

Moyer's process is: (or was for mine)

1) Cut the bottom panels out of the tank, or otherwise separate the tank depending on the design. On my Firebird Scrambler 2-gallon tank, they cut out the two flat sections on the bottom.

2) Bake the tank in an 800 degF kiln to get rid of soft-solder repairs, tank grunge, and impurities.

3) Do any repairs that need to be done, using compatible metal. Seams rewelded, corrosion holes patched, threads recut, etc. Obviously, if the whole tank is "honeycombed" with corrosion, it's not salvageable, but that will be revealed when the tank cools off from baking.

4) Weld the tank back together using a jig to make sure distortion doesn't offset the mounting holes. Grind down and refinish the welds so they aren't seen.

5) Coat the inside of the tank using some sort of red sealant which (as far as I can tell) never separates and never rusts.

6) Shoot primer on the tank and ship it back.

They did all that on mine for $300. They must work fast!

Lannis


"Why do you wear that thing, Dobby?" "This, sir? 'Tis a mark of the house-elf’s enslavement, sir."
Re: Gas Tank
RUSS TILLEY #819965 08/14/20 8:08 pm
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So, apparently this wont work on a chrome tank, unless you were not going back to chrome. The heat and welding would discolor existing chrome and no chrome shop would want to dip a tank that has been sealed inside into their chroming solution tanks.


Bill B...


Boomer
Re: Gas Tank
Boomer #819978 08/14/20 9:17 pm
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Originally Posted by Boomer
So, apparently this wont work on a chrome tank, unless you were not going back to chrome. The heat and welding would discolor existing chrome and no chrome shop would want to dip a tank that has been sealed inside into their chroming solution tanks.


Bill B...

Of course, any tank that needs weld repairs is going to have to be refinished, whether paint or chrome. If it doesn't need the metal ground, welded, or brazed, then a "slosh around" inner coating solution would be the ticket ....

Lannis


"Why do you wear that thing, Dobby?" "This, sir? 'Tis a mark of the house-elf’s enslavement, sir."
Re: Gas Tank
Dick Page #820101 08/15/20 6:07 pm
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Originally Posted by Dick Page
The tank on the Deerslayer is made in India. After I bought it, I checked it for leaks, found none, and then had it painted. I finished putting the bike together and had it running for a month or so. I went in the garage one day, and found a small spot of gas on the floor. Turned out there was a pin hole in the bottom weld. Guess it took that long for the gas to dissolve the speck of crud blocking the hole. I fixed it by zapping with the MIG. Took a couple of tries. Zap, grind, put gas in, leak, drain gas, air dry, repeat. Only a tiny bit of damage to the paint. But then I decided it could find another spot to leak, so I lined it with Caswell. Managed to spill a little acetone on the paint during the process which did some damage to the clear coat. Audible sigh. Sand and more clear. You can still see it if you look close.
SORRY, I SOUNDS LIKE IT WAS A BARGAIN


I APOLOGIZE FOR THE USE OF CAPS. I CAN ONLY TYPE WITH MY RIGHT HAND SO USING THE SHIFT KEY IS BEYOND MY CAPABILITES.

The Devil is in the details.

1957 BSA A10 Spitfire Scrambler (numbers matching, very correct, very nice condition)
1965 BSA A65 Lightning Rocket "Clubman" (restored)
1966 BSA A65 Spitfire MK-II (restored)
1967 BSA A65 West Coast Hornet (under restoration)
1975 Norton Commando Roadster (2100 miles)
2001 Kawasaki W650
Re: Gas Tank
RUSS TILLEY #822502 09/06/20 12:08 am
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Picked up my tank from Moyer Tank Renu yesterday. It was 3 weeks and $412.00. They took it apart and welded the cracks and reassembled it. Coated the inside and shot grey primer on it. Installed it on the bike and filled it with gas. No leaks so far. I am going to run the bike for awhile before having it repainted.


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