A Coverstion write up, not mine just wanted to share this good write up.





the line runs from the lockoff along the frame to flatdeck where there is a bulkhead fitting with a T. On the bottum of the T there is the line and hydrostatic relief valve and on the top is the line to tank.






I used an Impco 200m mixer, Cobra Converter and Vacuum lockoff all of which i got from helmarparts.com . The parts were fairly cheap. $108 for the mixer, $35 for the lockoff and $56 for the converter. I also got 2 sets of tank brackets from them for $38 each. I ended up buying the brackets a few days later in a second order so i really got ass raped by ups for brokerage fees and duty.

I figured it would be easier to just buy all the fittings and hoses i needed locally. I got most of my brass fittings from Lordco. I got my lines from coast industrial. I want to try and get my truck certfied to run propane so i had to buy tagged and certified lines which were really pricey. $125 for a 11 footer and $25 for the little one footer that connects to my tank quick release. I also got the vapor hose that goes from the converter to mixer from coast. You need to run a hydrostatic relief valve if you are using forklift tanks. From what i understand it is basically just like a pop off valve on an air compressor that pops off if the system ever exceeds a certain pressure. Coast didn't have any and recommended me to Surrels Automotive just around the block from them. The little bastard was like $30.

You need to get an adapter to adapt the base of the mixer to you toyota carb throttle plate. I wasnt having any luck finding one so I started to make my own only to find that propaneguy.com has them and is in Abbotsford. Anyways i Had allready started mine so i figured i might as well give it a try.

 

200m Mixer
http://www.helmarparts.com/product_p/fb-200m-2.htm
VFF-30 Vacuum Lockoff
http://www.helmarparts.com/product_p/vff-30-2-imp.htm
Cobra IMP Converter
http://www.helmarparts.com/product_p/cobra-imp.htm

A few of them even run this conversion with a turbo

 

Nice write up.
Here in the US, though, it's totally illegal for a vehicle that's used on road.
It can only be done for off road only use (not registered).




Fred

 

Not illegal in the US, conversions are done all the time. I drove a converted Landcruiser for a number of years with no issues, at least until the state I live in changes their emissions rules. It used to be LPG fuel was exempt from smog checks in CA, along with hydrogen, CNG, diesel and electric. The new regs. eliminated all but electric and diesel. And the problem on the LPG conversions is they made it nearly impossible to do unless there was a factory offered conversion available. Many larger domestic truck mfgs. did offer that option and many of those vehicles do run propane. I had to sell my old LC out of state because of the difficulty getting it smogged.

BTW, my dad lives in Washington and has two propane powered vehicles, his pickup has been on 100% LPG since about 1974 and a car have been on dual fuel since the later '70s. Both are regularly driven on the road and registered. I forget how many miles on the pickup now, but last time I heard it was over 600K miles and aside from a broken timing chain it has had no other engine work done. When the chain was replaced, they pulled the heads expecting to do some work and things looked so clean they just dropped the heads back down and called it good.

So legality of the conversion sort of depends on the state you live in.

 

The legality of a propane (or CNG) conversion does NOT depend on the state where you live.
This is FEDERAL law.
Conversions MUST me EPA certified and installed by an EPA certified facility.
There are only a few here in the US and only a few vehicles types that are certified for the conversion.
The certification cost is high ($150,000.00 ~ $250,000.00) and that's per particular vehicle (model/engine/year combo.) and that's for one year.
There are only a handful of vehicle types (currently) certified by the EPA and just a few facilities to do the conversion and the conversion itself is expensive (they have to recoup their cost for certification somehow).
No Toyota's are certified.
The list that I've found is:

CHEVROLET 6.0L 2007
Models Covered
C2500 HD Silverado Classic 2WD
C3500 Silverado Classic 2WD
K2500 HD Silverado Classic 4WD
K3500 Silverado Classic 4WD
G1500/2500 Express 2WD
G1500/2500 Van 2WD
G3500 Express 2WD
G3500 Van 2WD
C25 Silverado 2WD
C35 Silverado 2WD
K25 Silverado 4WD
K35 Silverado 4WD

GMC 6.0L 2007
Models Covered:
C2500 HD Sierra Classic 2WD
C3500 Sierra Classic 2WD
K2500 HD Sierra Classic 4WD
K3500 Sierra Classic 4WD
G1500/2500 Savana 2WD Pass
G1500/2500 Savana 2WD Cargo
G3500 Savana 2WD Passenger
G3500 Savana 2WD Cargo
C25 Sierra 2WD
C35 Sierra 2WD
K25 HD Sierra 4WD
K35 Sierra 4WD

FORD 2005 F150
Models Covered:
F150 Pickup 2WD& 4WD
F150 Supercrew Pickup 2WD & 4 WD

FORD 2003 F150 W/5.4L
Models Covered:
F150 Pickup 2WD & 4WD

FORD 5.4L 2005
Model Covered:
F250 2WD & 4WD
F250 2WD & 4WD Bed Delete
F350 2 WD & 4 WD Bed Delete

FORD 5.4L 2006 THRU 2008
Model Covered:
F150 Pickup 2WD & 4WD
F250-F350 Pickup 2WD & 4WD
F150 Supercrew Pickup 2WD & 4WD

FORD 5.4L 2007
Models Covered:
Lincoln: Mark LT 2WD & 4WD
Lincoln: Navigator 2WD & 4
Lincoln-Mercury: Town Car
Lincoln-Mercury: Grand Marquis
Lincoln-Mercury: Grand Marquis

FORD 4.6L 2006 & 2007
Models Covered:
Crown Victoria
Crown Victoria Police Car
Lincoln-Mercury: Town Car
Lincoln-Mercury:Grand Marquis
Lincoln-Mercury: Town Car
Lincoln-Mercury: Grand Marquis

Now just because a particular state doesn't care does not make it legal.
It's Federal (EPA) law.
The Federal fine is stiff and if the vehicle is sold, converted, one is subject to additional fines.




Fred

 

Same as I mentioned, that the mfg. must offer a vehicle with that fuel option, and yes, Toyota apparently does not.

But yes, apparently EPA has gotten more strict with this stuff, at least on the newer vehicles. I think there is probably some date beyond which vehicles are grandfathered in, I know in CA, it is 1974 and older.

And go figure, lets make it hard, if not impossible for US citizens to make use of a cleaner burning fuel that is available in large quantities domestically and force them to use the stuff we have to import from abroad!

 

bought your parts at Lordco, nice. Where abouts in BC do you live?? I work at the Lordco in Campbell River on Vancouver Island

 

Its actually not my build thread, its just an interesting build i thought some people on YT could benefit from so i copy and pasted it I do however live in Nanaimo wich is south of Cambell River so if you ever come down this way shoot me a Pm and ill take u Wheeling. Do u wheel much? cuz my parents live in Powell River(across the straight from Comox) and i go there once in a while. maybe u could show me some north island trails

 

oh ya but is there any power gain to this at all or do you lose anything obviously the durability is increased.... which is nice i would love to do a conversion how much does one usually run too do?