Meth blockage
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TECH Apprentice
Joined: Feb 2005
Posts: 319
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From: Glen Allen, VA
Meth blockage Whenever my car sits for apx. 2 weeks, my meth kit fails. I have to pull the pump and remove a yellowish jello looking substance from the head. Has anyone else run into this? Any ideas how to prevent? I'm using World Wide Meth non lubricated.
8 sec potential, 12 sec slip
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From: Savannah, GA
Is anyone else having this problem?
clemsondave- what kind of pump are you running? Is it an alkycontrol unit? I know some pumps aren't rated to handle 100% meth...
clemsondave- what kind of pump are you running? Is it an alkycontrol unit? I know some pumps aren't rated to handle 100% meth...
Originally Posted by Drewstein
Meth = bandaid and bandaids fail...
Just be glad you found out it was clogged before things went south.
Just be glad you found out it was clogged before things went south.
why did you buy D1SC, you do know they fail too right?
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TECH Resident
Joined: Jan 2004
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From: Castro Valley, CA
My guess would be that there's some sort of oil in contact with your 100% methanol, causing an emulsion to form... hence the jello. Does your pump require lubrication? Have you been adding some sort of oil to it when you put it back into the system? What is your reservoir material? Are there any baffles present... if so, what are they made of?
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TECH Apprentice
Joined: Feb 2005
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From: Glen Allen, VA
Thanks for the ideas. I have never added lubrication or oil to the meth. 100% meth. That is what the manufacturer recommends. Tank is a brand new windshield washer tank on a C5. Stainless lines. I never even drilled the hole for the windshield washer pump.
TECH Resident
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From: Castro Valley, CA
Be aware that 100% methanol will corrode stainless steel. But I don't think that it would cause any sort of gel formation. I wonder if the washer fluid tank is leaching some sort of plasticizer? Although then you'd think the walls of the tank would have a slime of some sort. Since you're removing this goop from the head of the pump I have to think that there's some sort of interaction right there at the pump; perhaps some sort of internal seal or lubricant? How much goop are you talking about here?
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Joined: Dec 2005
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From: Scottsdale, AZ
Originally Posted by LittleRedZ
everything fails, everything
why did you buy D1SC, you do know they fail too right?
why did you buy D1SC, you do know they fail too right?
So will my 402... in 30 years.
It is much safer to build something where the failures that will happen wont be the cause of other failures. Meth has caused more motors to go boom when their pump fails or it gets clogged ect...
If my fuel pump fails the car shuts off. But at least I still have my $15K motor intact.
Originally Posted by Drewstein
So will my 402... in 30 years.
I've run out of meth on 700 rwhp dyno pulls and the motor didn't flinch.
TECH Resident
Joined: Jan 2004
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From: Castro Valley, CA
It is much safer to build something where the failures that will happen wont be the cause of other failures. Meth has caused more motors to go boom when their pump fails or it gets clogged ect...
As for me, I'll take the IAT's at 30 degrees or more below ambient after my intercooler and methanol. Safer, I would argue, than pushing an FI setup at higher IAT's.
Thread Starter
TECH Apprentice
Joined: Feb 2005
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From: Glen Allen, VA
Not asking for a debate on whether I should use it or not. It is everyone's own decision. I have (or will have) a few tunes. I will use a tune that needs the meth for the track only. If I test purge before the run, I am willing to take the risk that it will not fail in the following 10+ seconds. The other tunes are more conservative and will not rely on meth.
It is a very small amount of the yellow substance. I pulled the tank, lines and pump. Flushed it all really well. Hopefully, that will solve the problem. Maybe, like you said, there was some substance on the walls of the new tank that reacted to the meth.
It is a very small amount of the yellow substance. I pulled the tank, lines and pump. Flushed it all really well. Hopefully, that will solve the problem. Maybe, like you said, there was some substance on the walls of the new tank that reacted to the meth.
Hey Dave...
Not sure what it is, but my car has seen 3-5 week stints where I was travelling this year and it sat and have never had any type of clog also on the 100% without oil. Ask Julio what he knows about it maybe.
Not sure what it is, but my car has seen 3-5 week stints where I was travelling this year and it sat and have never had any type of clog also on the 100% without oil. Ask Julio what he knows about it maybe.
Originally Posted by Drewstein
Apples and oranges.
So will my 402... in 30 years.
It is much safer to build something where the failures that will happen wont be the cause of other failures. Meth has caused more motors to go boom when their pump fails or it gets clogged ect...
If my fuel pump fails the car shuts off. But at least I still have my $15K motor intact.
So will my 402... in 30 years.
It is much safer to build something where the failures that will happen wont be the cause of other failures. Meth has caused more motors to go boom when their pump fails or it gets clogged ect...
If my fuel pump fails the car shuts off. But at least I still have my $15K motor intact.
Originally Posted by bboyferal
Hey, bandit...
Still waiting on an explanation! No more winks! Talk!
Still waiting on an explanation! No more winks! Talk!
Originally Posted by Drewstein
Apples and oranges.
So will my 402... in 30 years.
It is much safer to build something where the failures that will happen wont be the cause of other failures. Meth has caused more motors to go boom when their pump fails or it gets clogged ect...
If my fuel pump fails the car shuts off. But at least I still have my $15K motor intact.
So will my 402... in 30 years.
It is much safer to build something where the failures that will happen wont be the cause of other failures. Meth has caused more motors to go boom when their pump fails or it gets clogged ect...
If my fuel pump fails the car shuts off. But at least I still have my $15K motor intact.
If your motor lasts 30 years under frequent use with 700+ RWHP I'd be amazed.
Secondly, don't be so sure about your fuel pump theory. The only way your motor will just "shut off" is if the pump fails completely. I have personally witnessed a couple "high end" pumps (Aeromotive FWIW) start to fail and lose pressure. The magnets came loose IIRC and even though the car ran fine, we lost many lbs of fuel psi and had we not noticed we would have grenaded something for sure.
I have also seen walbro style in tank pumps do this, in fact in one instance the guy had an alky kit that saved his engine as it provided just enough fuel to keep the engine from detonating when the pump dropped pressure on a pass.
Alky is no more a band aid than using high octane fuel, A2W ic's, or multiple fuel pumps.
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Joined: Dec 2005
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From: Scottsdale, AZ
Originally Posted by mdhmi
Good luck on that. As for meth - it has a place. I run meth for added safety and for controlling IAT's when beating on the car during the summer heat.
I've run out of meth on 700 rwhp dyno pulls and the motor didn't flinch.
I've run out of meth on 700 rwhp dyno pulls and the motor didn't flinch.
Glad to know you're using more to do less...
