[Mike@N54Tuning.com]

Originally Posted by Ilma

I suspect your hunch is correct.

I inspected all the connections a couple of weeks ago and they were dry.

Pump seems the most likely suspect.

Its probably the seal on the pump. Were you running higher then 50% meth? Brian is right this is not uncommon and happens even with normal WW fluid. I would assume the seals were designed to be submerged in 40-50% meth so its probably just a poor design or cheap part BMW used.

Mike

[Ilma]

Originally Posted by Mike@N54Tuning.com

Its probably the seal on the pump. Were you running higher then 50% meth? Brian is right this is not uncommon and happens even with normal WW fluid. I would assume the seals were designed to be submerged in 40-50% meth so its probably just a poor design or cheap part BMW used.

Mike

Yes.....I was running 100% or 80/20 for almost a year now.

Just switched down to 50/50 recently.

[E90SoFlo]

Originally Posted by Brey335i

The point is that even if it's a maintenance thing, it will happen to some people no matter how careful you are. Better to do a trunk mount and be on the safe side.

You would have to be very lucky to get a meth fire covered by insurance.

burn baby burn, what methanol system? lol jk

[plague]

Originally Posted by Rotorocious

It's the ww pump.
The seals in mine went and had Drip in the exact spot. It's common sort of if you search a bit.
New pump and I had no leaks

yup. my meth flow was getting all screwy and a friend noticed when pulling up to gym that i had a nice puddle forming under passenger door. was leaking well. The rubber o ring in your ww pump corrodes and causes this eventually. Changed the little pump (45$) and all is good now. Obviously a leak in this spot can NOT cause a fire, no way. And yes im one of the morons still driving with meth in my ww resevoir. Although i check it daily now to be safe. Ive yet to have any leaks anywhere else in the system.

[Ilma]

Originally Posted by plague

yup. my meth flow was getting all screwy and a friend noticed when pulling up to gym that i had a nice puddle forming under passenger door. was leaking well. The rubber o ring in your ww pump corrodes and causes this eventually. Changed the little pump (45$) and all is good now. Obviously a leak in this spot can NOT cause a fire, no way. And yes im one of the morons still driving with meth in my ww resevoir. Although i check it daily now to be safe. Ive yet to have any leaks anywhere else in the system.

Isn't that interesting.....my meth flow was becoming erratic as well.

[Mike@N54Tuning.com]

Originally Posted by Ilma

Yes.....I was running 100% or 80/20 for almost a year now.

Just switched down to 50/50 recently.

Maybe the high meth content ate away at the seals prematurely.

Mike

[plague]

Originally Posted by Ilma

Isn't that interesting.....my meth flow was becoming erratic as well.

Yup. If there is a leak in that pump, there can be air getting into the system. And like mike said above, its the high methanol content perhaps that slowly kind of corrodes the little soft black rubber rings in the pump that allow the leak to occur. Its a cheap, and super quick and simple fix soo whatever.

[335okc]

happened to me when i was running 80-20. i had visible crack on the rubber seal on the strainer/filter. replaced that, problem fixed. and i downgrade to 50/50.
i got trunk mount on order because i miss higher concentration.

[E3r2E9r]

Originally Posted by plague

yup. my meth flow was getting all screwy and a friend noticed when pulling up to gym that i had a nice puddle forming under passenger door. was leaking well. The rubber o ring in your ww pump corrodes and causes this eventually. Changed the little pump (45$) and all is good now. Obviously a leak in this spot can NOT cause a fire, no way. And yes im one of the morons still driving with meth in my ww resevoir. Although i check it daily now to be safe. Ive yet to have any leaks anywhere else in the system.

Hope you got a fire extinguisher and a dumb insurance company....

[cn555ic]

I have run 90/10 in my trunk for the longest and have not any issues whatsover...Be safe out there and convert to a tank mount...Much safer and if you really think about it when your installing meth, its not a beginners mod and like really are you that worried about going back to stock with ease of install!!

[Joshboody]

My WW pump leaked, so this was my setup before I converted to the trunk. It worked very well. Basically direct line to pump with no WW squirters. Could do this before routing to the trunk. Trunk mount could take a little time... took me almost an entire day for the FBI set up.

[plague]

Originally Posted by E3r2E9r

Hope you got a fire extinguisher and a dumb insurance company....

you bolded the worst sentence in my statement to parody with your response. meth Can cause fires, not arguing this at all. but a leak from the actual ww pump specifically. no

[Jeff@TopGearSolutions]

Originally Posted by plague

you bolded the worst sentence in my statement to parody with your response. meth Can cause fires, not arguing this at all. but a leak from the actual ww pump specifically. no

Why do you say that?

[plague]

Originally Posted by Jeff@topgearsolutions

Why do you say that?

the pumps location. the pump being on the outside of the resevoir facing the the inner fender is basically walled off by the resevoir itself. any leak coming from that o ring is going back if moving, and to the ground right below. but leaks anywhere further up the system yes, flammable. just saying, from the ww pump itself i dont see the meth making contact with any dangerous areas.

correct me if im wrong? im not a hard headed guy lol

[Wedge1967]

I actually just started using meth a few months prior to my fire. I still have no leaks in my WW system and I too check it often just to make sure.

Prior to installing my DPs I ran 50/50, but put 90% to dyno with my new DPs after install. Wasn't more than a mile after installing my new DPs and a few good WOT through 1, 2, and 3rd, the smoke started rolling into the car from the dash. Not sure what actually happened, but I'm thinking that meth in the filler neck got hot enough to boil out. Regardless we found a lot of meth on the sub pan when we took the car back to the shop. I was lucky, I was able to hit the top of the valve cover to put the fire out that was burning the foam under the plastic valve cover just oposit from the positive connection post.

I remember at the time, Overboost just had a fire that burned out the foam under his valve covery and it cost him well over 3k to replace the wiring, coil packs.... He was running 80/20, but the low level light was on when he had his fire. So don't be fooled into thinking that if you don't overfill your tank you'll be ok. I know some people have also put insalation on the filler neck. While that is a good recomendation, it still doesn't fix the other issues with using WW as a storage solution for meth.

One other key note, in all my years of racing, we have always kept our fuel cold. In the summer, 1 gal of gas can expand by .01425 gal for every 18 F or 10 C. So it's not recommended that you fill your tank on your way to the office and leave your car sitting in the sun all day long. The colder the fuel, the denser the charge. Same theory applies to meth injection. Trunk mount eliminates the heat exchange from your DPs with regard to your methanol storage.

Safety first...

Originally Posted by plague

Although i check it daily now to be safe. Ive yet to have any leaks anywhere else in the system.

[Dynomyte]

I am having the same leak, does anyone have the part number for the ring? All I am finding is complete pump part number.

[VMRWheels]

Originally Posted by skinrock

Seems to me that WW kits should be pulled from the shelves at this point, unless a huge warning is displayed before purchasing one. It doesn't matter how many of these threads are created, people will continue to buy it because it's convenient.

Agreed. Needless to say, car fires are pretty dangerous.

[stilov]

Does this look like a leak to you guys?

[jpsimon]

it looks like your car is bleeding

[akotten]

After being towed to the paddocks when I had my fire, I noticed a drip in the same area. Perhaps this is what started my fire in the first place...

[stilov]

yes but bleeding what? meth?

[stilov]

well my ww tank is empty and I have a trunk mount tank on the way...