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Author Topic: Setback on LS  (Read 1107 times)

Reopropf

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Setback on LS
« on: January 25, 2010, 06:41:13 PM »
Oh well...

Seems Roland detected a micro leak in tank, and when it was pressure checked a few more micro holes became evident.

It is suspected that a bit more corrosion and rust lies within tank and what to do next is the question.  Seems like a sealant or repair of some sort is just covering what may be a larger problem for the future.  There is a used tank on ebay for $200, but who knows,  the same problem may be evident within that tank which hasn't been pressure tested.  Or, my leaning, just pony up $760. and get a new R65 tank from Germany.  My guy will  then paint it and bike will be fini.

So, do you guys have some thoughts.  Sure, I'm not happy about dumping more $$$ into  this project, but, at least I'll know it won't be a problem in my lifetime.

Regards, Peter
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Offline Bob_Roller

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Re: Setback on LS
« Reply #1 on: January 25, 2010, 07:06:40 PM »
There's a line of products, under the name POR 15, for sealing leaky fuel tanks .

They have a motorcycle kit for about $45-50 .

But the tank must be clean of all rust and original liner, before the final coating is applied .

I'm up to that point now with the tank from my '84 LS, it looked like an old rusted car exhaust system inside the tank .

The manufacturer claims small leaks like you have, will be cured with their product .
« Last Edit: January 25, 2010, 07:10:58 PM by Bob_Roller »
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'81 R65
'82 R65 LS
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Riding all year long since 1993 .
I'll give up my R65, when they pry my cold dead hands from the handlebars !!!!!

darrylri

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Re: Setback on LS
« Reply #2 on: January 25, 2010, 07:33:18 PM »
I used the POR-15 kit on my R51/3 tank.  It comes with a stripper for any liner that's left and an acid wash that cleans up the rust.  You have to wash the tank in between and afterward before the final lining goes in.  

It was a lot of work to apply, and the stripper will take off any paint it gets on.  The tank on my bike was losing the original lining but was otherwise sound; and now, two years later, I've had zero problems with it.  The lining is very thick and will definitely fill pinholes.
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Offline Rob Valdez 79 R65

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Re: Setback on LS
« Reply #3 on: January 25, 2010, 08:12:28 PM »
I agree with these guys.  At long as the petcock mount isn't about to fall off, POR 15 will do the trick.
Yes, you will probably have to repaint, but you are going to do that with a new tank, anyway.

If you haven't heard about tank linings (and their success) by now, it just means you are young! ;)


And yes, if there is one pin-hole, there will be others.

Drain your tank once a year, remove the petcock and get any water out of there - especially if you just finished a two-week tour in the rain.
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Reopropf

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Re: Setback on LS
« Reply #4 on: January 26, 2010, 03:48:01 PM »
New tank ordered from Germany, with rush shipping requested.

I have too much invested not to do the bike right.

 :)
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Offline Rob Valdez 79 R65

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Re: Setback on LS
« Reply #5 on: January 26, 2010, 07:18:35 PM »
I hope you didn't pay too much!  S. Meyer sells them for $484 USD (depending on exchange rate).

http://www.meyer-bikes.com/ersatz3.php?cat=7

Good people to deal with.  I bought my seat from them.
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