View Full Version : Use meths or
98tls
3rd November 2008, 12:56
This may well be the outcome,id been told it was wise to put a bit in everynow and then but never bothered so only myself to blame,this only took 10 years to go bad.
BOGAR
3rd November 2008, 13:25
Its the first i have ever heard of this. What is the deal and for a 2004 bike should it still be a problem?? How much and how often with the meths?
Fatjim
3rd November 2008, 13:26
That'l teach you for leaving your lawn mower outside.
nodrog
3rd November 2008, 13:39
that shit will buff out
CookMySock
3rd November 2008, 13:42
I think this happens when the bike is left unused with a partial tank of fuel. The air in the tank temperature-cycles every day, sucking in moisture-laden air and proceeds to condense the moisture out of it on the next cold cycle.
You can also get the tank coated on the inside with some epoxy(?) to stop corrosion.
Steve
sinfull
3rd November 2008, 13:42
mmmmm wonder what meths does to plastic tanks ewwww i got a plastic tank ! thunk thunk
98tls
3rd November 2008, 13:54
I think this happens when the bike is left unused with a partial tank of fuel. The air in the tank temperature-cycles every day, sucking in moisture-laden air and proceeds to condense the moisture out of it on the next cold cycle.
You can also get the tank coated on the inside with some epoxy(?) to stop corrosion.
Steve I did the TL one with POR15 but sadly it was a bit late,bike spent a lot of time sitting on sidestand,water goes to the lowest point in tank and sits there,hence the holes,amazing how bad it was really,before blowing it out there was only 2 holes visable the rest was hidden waiting to piss me off down the track a bit,very poor sealing from new methinks.As for how much meths,just a teaspoon everynow and then will see an end to water in your tank.
AllanB
3rd November 2008, 13:55
Hmmmm interesting....
I've always parked my bikes with a full tank - easy for me as I have always used them for pleasure not daily transport- ie weekend fangs and touring trips. :scooter:
I owned (from new) a 1983 Kawasaki that I sold two and a half years ago and the tank was mint - no sign of rust. I attribute this to keeping it full after each ride.
Meths is a old answer for getting water out of a fuel tank - the word used to be a cup of meths to a car tank. Figure a car at 40-50 litres. With bikes being somewhere around 20, a bit under half a cup would be a similar ratio. That's 100-125mls to a FULL tank.
Ixion
3rd November 2008, 13:57
Machinists' soluble cutting oil.
98tls
3rd November 2008, 13:58
Its the first i have ever heard of this. What is the deal and for a 2004 bike should it still be a problem?? How much and how often with the meths? It will affect any bike with a steel tank,problem with bikes such as mine is the water cant go anywhere,only way to completly remove it is to take tank off remove fuel pump from the tank and empty,a teaspoon of meths every few fills would seem easier methinks,pity i never bothered:argue:would have saved me some time/money.
Usarka
3rd November 2008, 14:00
mmmmm wonder what meths does to plastic tanks ewwww i got a plastic tank ! thunk thunk
Meths is basically just ethanol, so go fill up at gull and find out :innocent:
Ixion
3rd November 2008, 14:03
Meths will be fine for plastic tanks. Rubber hoses and seals, maybe not, but the ratio is so small that there will be no problem in practice. I use the good old fashioned measuring system, a glug and two sloshes per tankful, every twice in a while.
98tls
3rd November 2008, 14:05
Hmmmm interesting....
I've always parked my bikes with a full tank - easy for me as I have always used them for pleasure not daily transport- ie weekend fangs and touring trips. :scooter:
I owned (from new) a 1983 Kawasaki that I sold two and a half years ago and the tank was mint - no sign of rust. I attribute this to keeping it full after each ride.
Meths is a old answer for getting water out of a fuel tank - the word used to be a cup of meths to a car tank. Figure a car at 40-50 litres. With bikes being somewhere around 20, a bit under half a cup would be a similar ratio. That's 100-125mls to a FULL tank. Same here mate though methinks that in some way only speed things up as it sits in the garage for months at times not getting used,not sure on an exact rule of thumb but a teaspoon every 2nd/3rd fill would suffice methinks.
sinfull
3rd November 2008, 14:06
Meths is basically just ethanol, so go fill up at gull and find out :innocent: See mobil have it now too ! Was gonna give it a go but went with the 91 next door, don't know why but the bike seemed remarkably economical at the track this weekend !
98tls
3rd November 2008, 14:17
Meths is basically just ethanol, so go fill up at gull and find out :innocent: :niceone:From memory ethanol with about 7% methanol.
JMemonic
3rd November 2008, 14:23
You can get kits to prevent this but the best bet is go to a radiator repair shop that does fuel tank repairs, the will descale the tank and put a rust killer in first and clan the tank, then the epoxy, if you are not in a hurry and chey are doing another tank around the same time you maybe able to get ti done a bit cheaper.
98tls
3rd November 2008, 14:27
You can get kits to prevent this but the best bet is go to a radiator repair shop that does fuel tank repairs, the will descale the tank and put a rust killer in first and clan the tank, then the epoxy, if you are not in a hurry and chey are doing another tank around the same time you maybe able to get ti done a bit cheaper. All the white gunk you can see inside the tank is the sealer from one of the kits,sadly though a bit late.Holes in tank are all fixed as we speak:niceone:
piston broke
3rd November 2008, 17:19
what does the meths do to the water?
98tls
3rd November 2008, 17:26
what does the meths do to the water? Miscible which means they mix (something like that)the water goes through the system with the petrol.
Motu
3rd November 2008, 18:28
Meths can work,but the ratio is pretty critical - not enough and it'll drop out into the water,too much and it'll move into the fuel.It also pulls a lot of shit into the system,enough to block filters.A better method is to use some sort of soluble oil additive as Ixion mentions.When I used to buy recycled parts wash,they used to just a soluble additive to the solvent to turn it into a degreaser....what ever that stuff is,is what you need.
klyong82
6th November 2008, 07:30
Machinists' soluble cutting oil.
Is that what's its called? Any idea where to buy this and how much?...thanks
imdying
6th November 2008, 08:23
Is that what's its called? Any idea where to buy this and how much?...thanks
Try an engineering supply store like Paykels.
vifferman
6th November 2008, 08:50
I owned (from new) a 1983 Kawasaki that I sold two and a half years ago and the tank was mint - no sign of rust. I attribute this to keeping it full after each ride.
If there was water in the tank, keeping the fuel tank full would help somewhat to keep air away from the water and bit of tank it was next to, thus helping to stop oxidation occuring. However, there's no way it would be completely anaerobic, so it would gradually rust anyway, if it was going to.
It will affect any bike with a steel tank,problem with bikes such as mine is the water cant go anywhere,only way to completly remove it is to take tank off remove fuel pump from the tank and empty,a teaspoon of meths every few fills would seem easier methinks,pity i never bothered:argue:would have saved me some time/money.
Yeah.
I had an '85 VF500 that had an unfortunately shaped tank, where the back parts of the tank were narrow and lower than the rest of the tank. The one on the right-hand side (away from the tap) would never ever drain completely. I developed rust there, with a couple of pinholes right through the paintwork. I tried to fix it properly and soldered them up (brazing would've been better) then used the Kreem tank repair system (rust remover, acetone then sealer), but it continued to spring a leak every few months, probably because I wasn't aggressive enough with cutting the pinholes back far enough. Also the tank sealer was pretty viscous, so it was hard to make sure it coated every part of the inside of the tank.
I think once your tank has any rust inside, it's difficult to completely eradicate it without really dedicated and complete repair and protection.
98tls
6th November 2008, 18:11
Bugger me with all the solder/copper on the left hand side of the tank the old TL will just drop like a stone round lefthanders:laugh:
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