The member photo gallery is now integrated and live!!  All user albums and pictures have been ported from old gallery.


To register send an e-mail to admin@bmwr65.org and provide your location and desired user name.

Author Topic: Annual Tank Cleaning maintenance  (Read 1580 times)

Offline Barry

  • Mt. Olympus Resident
  • ****
  • Posts: 5145
Annual Tank Cleaning maintenance
« on: September 27, 2009, 03:52:34 PM »
I found some water in the float bowls after running on reserve and thought I should consider flushing out the tank. Next time I get down to reserve again I'll empty out the fuel and remove the tap to get everything out.

The original red liner is in good condition and I don't get any red  bits in the bowls.

Anybody do this as an annual maintenance task and is there a special method to remove traces  of water from the tank ?

Barry Cheshire, England 79 R45

Offline Bob_Roller

  • Global Moderator
  • Mt. Olympus Resident
  • *****
  • Posts: 9124
  • -7 hours GMT
Re: Annual Tank Cleaning maintenance
« Reply #1 on: September 27, 2009, 05:14:35 PM »
I leave mine on a table in the shade, on the back patio, when it's 115 F. (46 C.) outside, only takes a day or so to get everything evaporated out of the tank .
« Last Edit: September 27, 2009, 05:15:37 PM by Bob_Roller »
'81 R65
'82 R65 LS
'84 R65 LS
'87 Moto Guzzi V65 Lario
'02 R1150R
Riding all year long since 1993 .
I'll give up my R65, when they pry my cold dead hands from the handlebars !!!!!

Offline Bengt_Phorqs

  • Mt. Olympus Resident
  • ****
  • Posts: 1419
  • There are no wrong turns on a motorcycle
Re: Annual Tank Cleaning maintenance
« Reply #2 on: September 27, 2009, 06:06:46 PM »
IMO tank cleaning should be an annual task, like flushing the brake lines.  Isopropyl alcohol has the unique ability to mix with water and with gasoline.  Perhaps emptying the tank of gasoline then adding some isopropyl alky, sloshing it around, then draining it would remove the last vestiges of H2O.
Bengt Phorqs, Jake R90/6, R80/7, R1200RTw, Moto Guzzi California EV , Triumph TR250W, Yamaha TY250A Trials, Suzuki DR650

bruce_launceston

  • Guest
Re: Annual Tank Cleaning maintenance
« Reply #3 on: September 27, 2009, 06:59:47 PM »
As Bengt says, isoprophyl alcohol mixes with water - the old remedy for water in the fuel was to add a cup of metholated spirits to a tank of fuel and drive the vehicle. I suspect of cup is way too much for a motorcycle sized tank but I have added a good slosh without any nasty side effects.
Although I've not had any water in fuel problems since changing the original fuel filler cap seal for a more modern twin lip rubber one (off a later model) many years ago.

Cheers Bruce

Offline montmil

  • Mt. Olympus Resident
  • ****
  • Posts: 8371
Re: Annual Tank Cleaning maintenance
« Reply #4 on: September 28, 2009, 05:07:26 AM »
Alcohol is hygroscopic, tending to absorb moisture. Pour a bottle of isopropyl alcohol in the emptied tank, do a serious sloshing and pour out the combined liquids. Allow the tank to air dry. It will not take long.

Monte
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline Barry

  • Mt. Olympus Resident
  • ****
  • Posts: 5145
Re: Annual Tank Cleaning maintenance
« Reply #5 on: September 28, 2009, 11:31:47 AM »
Alcohol it is then.  Might just have one myself while I'm waiting.

Cheers [smiley=1drink.gif]
« Last Edit: September 28, 2009, 11:34:02 AM by bhodgson »
Barry Cheshire, England 79 R45

Offline montmil

  • Mt. Olympus Resident
  • ****
  • Posts: 8371
Re: Annual Tank Cleaning maintenance
« Reply #6 on: September 28, 2009, 05:44:33 PM »
Quote
Alcohol it is then.  Might just have one myself while I'm waiting. Cheers [smiley=1drink.gif]

You're my kinda guy, Barry! [smiley=beerchug.gif] Any chore should have the proper ratio of adult beverages to labor intensity.

Monte


Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline Ed Miller

  • Mt. Olympus Resident
  • ****
  • Posts: 2425
Re: Annual Tank Cleaning maintenance
« Reply #7 on: September 28, 2009, 10:19:27 PM »
...so I'm not the only one who thinks it takes at least one beer for the oil to drain?

 "Oh, I pity the abstainer!"
Percy Dovetonsils, Poet Laureate


Ed Miller
'81 r65
Falls City, OR

Offline R65Singh

  • Lives in Foothills of Mt. Olympus
  • **
  • Posts: 106
  • Two Wheels....Nothing beats it.
Re: Annual Tank Cleaning maintenance
« Reply #8 on: September 28, 2009, 10:39:52 PM »
While searching on the web for tank cleaning I came across this nice little article with links about ways to clean rust of the gas tanks.  I liked the last one on the list "electrolytic rust removal".  Will be next on my to do list this winter.  Any one tried this way of rust removal?  Just curious.

http://www.motorcycleanchor.com/motorcycle/how_to/mc_tankrust.html
1982 R65LS
1970 r50/5
1962 r50/2
1976 Honda Z50

drewboid

  • Guest
Re: Annual Tank Cleaning maintenance
« Reply #9 on: September 29, 2009, 11:11:34 AM »
I have used the electrolytic method to clean rust from the hinges and locks on my saddlebags. It works very well - never thought of using it inside the gas tank. If your tank has the typical divider down the center you may have to place the sacrificial iron in each side for it to clean properly.

Offline Rob Valdez 79 R65

  • Newbie
  • *
  • Posts: 96
  • I Love YaBB 2!
Re: Annual Tank Cleaning maintenance
« Reply #10 on: September 29, 2009, 08:13:26 PM »
Quote
[size=12]While searching on the web for tank cleaning I came across this nice little article with links about ways to clean rust of the gas tanks.  I liked the last one on the list "electrolytic rust removal".  Will be next on my to do list this winter.  Any one tried this way of rust removal?  Just curious.

http://www.motorcycleanchor.com/motorcycle/how_to/mc_tankrust.html[/size]

That is a neat idea!

I envision some sort of plastic "foot" - buttresses, if you will, to put on the bottom of the anode(?) to keep it from touching the tank.
Perhaps a skeletal hot-dog bun made of plastic....
« Last Edit: September 29, 2009, 08:13:51 PM by Rob_Valdez_79_R65 »

Offline montmil

  • Mt. Olympus Resident
  • ****
  • Posts: 8371
Re: Annual Tank Cleaning maintenance
« Reply #11 on: September 30, 2009, 06:23:39 PM »
[/quote]... Perhaps a skeletal hot-dog bun made of plastic...[/quote]

I see you've dined at my ex-wife's table. Gag me!

Monte
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Landlubber

  • Guest
Re: Annual Tank Cleaning maintenance
« Reply #12 on: October 04, 2009, 12:03:37 AM »
Good old Treacle, mixed with the same quantity of water makes the very best rust remover you will ever see, the metal is bright and shiney new.

Simply pour the mixinto the tank and leave overnight, do some Google searching on treacle to see just how good it is, a very old product that has been enzyme cleaning long before it was politically correct to do so......

Offline Rob Valdez 79 R65

  • Newbie
  • *
  • Posts: 96
  • I Love YaBB 2!
Re: Annual Tank Cleaning maintenance
« Reply #13 on: October 04, 2009, 04:41:19 AM »
Quote
Good old Treacle, mixed with the same quantity of water makes the very best rust remover you will ever see, the metal is bright and shiney new.

Simply pour the mixinto the tank and leave overnight, do some Google searching on treacle to see just how good it is, a very old product that has been enzyme cleaning long before it was politically correct to do so......


You put sugar in your gas tank???  :o

http://www.google.com/#hl=en&source=hp&q=Treacle&btnG=Google+Search&aq=f&aqi=&oq=&fp=2cca7b2e99206b9c

Offline Lucky_Lou

  • Mt. Olympus Resident
  • ****
  • Posts: 2699
  • shoot first
Re: Annual Tank Cleaning maintenance
« Reply #14 on: October 04, 2009, 10:47:03 AM »
Quote
Good old Treacle, mixed with the same quantity of water makes the very best rust remover you will ever see, the metal is bright and shiney new.

Simply pour the mixinto the tank and leave overnight, do some Google searching on treacle to see just how good it is, a very old product that has been enzyme cleaning long before it was politically correct to do so......
Dare say you could recycle it .... make a nice sarni when youve done
Lou
Ask questions later