KTM 950/990 Adv UNDERSEAT TANK - Page 5

rade · 01-20-2013, 02:14 AM

[QUOTE=WelshLAMB;20519975]I assume vent for rear tanks is lower than front tanks fuel level and level in fronttanks higher than rear filler when full. So does petcock have to be turned off until front tanks empty a bit?

Not necessarily the petcock has to be closed, if the vent tube ends near the triple clamps, itm higher than the main tanks... right?

HeatXfer · 01-21-2013, 12:07 AM

Quote:

Originally Posted by rade

Not necessarily the petcock has to be closed, if the vent tube ends near the triple clamps, itm higher than the main tanks... right?

If the main tanks' fuel level is above the aux tank's level, won't the fuel seek it's own level and fill the aux tank's vent line to the level of the main tanks? I am not familiar with fuel tank venting requirements, but wouldn't a vent line full of fuel present a potential problem? Is an air gap required?

BTW - Great idea & appealing design

rade · 01-21-2013, 02:49 AM

[QUOTE=HeatXfer;20538870]If the main tanks' fuel level is above the aux tank's level, won't the fuel seek it's own level and fill the aux tank's vent line to the level of the main tanks? I am not familiar with fuel tank venting requirements, but wouldn't a vent line full of fuel present a potential problem? Is an air gap required?

Sure, the vent tube will be filled by gas, but the vacuum should take it back to the tank I believe :-) Testing will show us...

BigNastybrp · 01-21-2013, 07:27 AM

you can use a one way valve on the vent. get a used on from the junk yard off a old car for testing. just my 0.02

evildingo · 01-24-2013, 04:18 AM

Ill have one thanks , would like to use it for water storage .

rade · 01-27-2013, 03:40 PM

some progress... the form in 3D:

in about a week or two the form will be billet by CNC machine :-)

bikyto · 01-27-2013, 05:09 PM

that's really sweet

rossguzzi · 01-27-2013, 06:58 PM

Very cool to be able to do stuff like this. How many litres do you think it will hold?

rade · 01-29-2013, 01:47 PM

Quote:

Originally Posted by rossguzzi

Very cool to be able to do stuff like this. How many litres do you think it will hold?

The model is saying 8,3 liters, but reality will be one liter less as there will be some air pockets...

Chinookmark · 01-31-2013, 02:00 PM

Subscribed

srad600 · 01-31-2013, 03:38 PM

This is looking better and better. I will likely chuck my ABS and mount this up when it becomes available.

MrSandman818 · 01-31-2013, 09:42 PM

Haha I just had to say that to be a dick.

Quote:

Originally Posted by ciedema

Hahaha - I can't even write what I mean.

two trackin fool · 02-01-2013, 01:43 AM

Any chance of being able to make provisions for ABS ???
Maybe as easy as shorten the tank although not sure how much cap would be lost to cost & value ?
Or even make a pocket for the ABS pump ?

HeatXfer · 02-01-2013, 04:13 PM

Quote:

Originally Posted by evildingo

Ill have one thanks , would like to use it for water storage .

rade · 02-02-2013, 09:22 AM

Quote:

Originally Posted by two trackin fool

Any chance of being able to make provisions for ABS ???
Maybe as easy as shorten the tank although not sure how much cap would be lost to cost & value ?
Or even make a pocket for the ABS pump ?

Xfingers pls. so that this one for NO-ABS models works well and when the investment returns back, I will invest into the solution for models with ABS. I have already some idea :-) But timewise - Christmas if all goes well with this one...

01-20-2013, 02:14 AM	#61
rade ^OP Gnarly Adventurer Joined: Dec 2008 Location: Prague Oddometer: 100	[QUOTE=WelshLAMB;20519975]I assume vent for rear tanks is lower than front tanks fuel level and level in fronttanks higher than rear filler when full. So does petcock have to be turned off until front tanks empty a bit? Not necessarily the petcock has to be closed, if the vent tube ends near the triple clamps, itm higher than the main tanks... right? __________________ Rade ´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´ KTM 950 Adv => Peru 2 Patagonia BMW Xchallenge => Europe 2 Cape Town overland Ducati 916 & S2R cafe

01-21-2013, 02:49 AM	#63
rade ^OP Gnarly Adventurer Joined: Dec 2008 Location: Prague Oddometer: 100	[QUOTE=HeatXfer;20538870]If the main tanks' fuel level is above the aux tank's level, won't the fuel seek it's own level and fill the aux tank's vent line to the level of the main tanks? I am not familiar with fuel tank venting requirements, but wouldn't a vent line full of fuel present a potential problem? Is an air gap required? Sure, the vent tube will be filled by gas, but the vacuum should take it back to the tank I believe :-) Testing will show us... __________________ Rade ´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´ KTM 950 Adv => Peru 2 Patagonia BMW Xchallenge => Europe 2 Cape Town overland Ducati 916 & S2R cafe

01-21-2013, 07:27 AM	#64
BigNastybrp Big Nasty Joined: Dec 2007 Location: high speed boogie land, San jose Ca. Oddometer: 502	you can use a one way valve on the vent. get a used on from the junk yard off a old car for testing. just my 0.02 __________________ Dr350, XR650R Dual Sport,XR600R,KTM ADV990R

01-24-2013, 04:18 AM	#65
evildingo On a road to no-where Joined: Jan 2007 Location: Gympie QLD Oddometer: 397	Mate Ill have one thanks , would like to use it for water storage . __________________ Lets ride

01-27-2013, 03:40 PM	#66
rade ^OP Gnarly Adventurer Joined: Dec 2008 Location: Prague Oddometer: 100	The form some progress... the form in 3D: in about a week or two the form will be billet by CNC machine :-) __________________ Rade ´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´ KTM 950 Adv => Peru 2 Patagonia BMW Xchallenge => Europe 2 Cape Town overland Ducati 916 & S2R cafe

01-27-2013, 05:09 PM	#67
bikyto Dans le doute...gaz! Joined: Jun 2009 Location: Northern Cali Oddometer: 1,721	that's really sweet __________________ The race is long and, in the end, it's only with yourself...

01-27-2013, 06:58 PM	#68
rossguzzi Gnarly Adventurer Joined: Oct 2012 Location: Bottom left hand side of OZ Oddometer: 243	Very cool to be able to do stuff like this. How many litres do you think it will hold?

01-31-2013, 02:00 PM	#70
Chinookmark Gnarly Adventurer Joined: Oct 2005 Location: Raggie Town, CT Oddometer: 126	Subscribed

01-31-2013, 03:38 PM	#71
srad600 Gnarly Adventurer Joined: Sep 2009 Location: Oakland, Kalli Fornia Oddometer: 408	This is looking better and better. I will likely chuck my ABS and mount this up when it becomes available.

02-01-2013, 01:43 AM	#73
two trackin fool Scott Joined: Nov 2010 Location: Wadhams , MI Oddometer: 782	Any chance of being able to make provisions for ABS ??? Maybe as easy as shorten the tank although not sure how much cap would be lost to cost & value ? Or even make a pocket for the ABS pump ? __________________ '10 990 WHITE two trackin fool screwed with this post 02-01-2013 at 01:53 AM

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