1990 E350 Conversion Project

[roach711]

Trunt - I'll have to look into that shutoff device.

Ferenzy - For the reason Trunt mentioned I hooked mine up with a two-stage regulator at the tanks feeding a manifold I cobbled up out of black pipe under the kitchen counter. I'd rather have a .5 psi leak than a 250psi leak if a hose was breached. I put a manual shutoff valve at the manifold so I can easily shut off the propane should the need come knockin'.

[Ferenzy]

Good info guys... I'm nowhere near ready to install the lines yet, so I haven't really started to researched it but it sounds like the two stage regulator with an emergency shut off is the way to go. I didn't realize the pressures got that high! Thank god for forums like this. On another note, I finished installing the floor, pictures to follow...

[nat_ster]

Be sure not to use Galvanized pipe guys.

Black iron, copper, or the yellow flex lines only.

Nat

[Redbear]

re: propane pressure
The pressure in the tank at rest is an indicator of the ambient air temperature, not the amount of liquid left. The pressure might reach 200+ psi on a hot summer day, but is usually less.

We use 11 to 14 water-column inches to run a 70 kW generator. This is about 0.5 psi. Small generators less than 10 kW and probably most appliances use 7 water-column inches, or about 0.25 psi. In running two-stage regulators, I think it is common to have a 10 psi (277") "high pressure" regulator feeding the line to force an adequate flow to the step-down regulator(s) for the appliances.

[Ferenzy]

Ok, so I haven't worked on the bus in awhile, life and whatnot tends to get in the way every now and then but I recently started back up. First here are the pictures of the floor I promised. It's double layered 3/4" marine grade ply.





I also added an access panel for the fuel pump. It seemed silly not to add this convenience now when it could save you a huge headache later.

[ol trunt]

Thats the best insurance you could buy for an in tank fuel pump! Now that you can access it, the pump will never need replacing!

[Ferenzy]

I just completed the steel frame seat mount for the drivers seat. It'll be boxed with plywood and probably have a pull out drawer for storage. It went smooth and is rock solid.

[Ferenzy]

Originally Posted by ol trunt

Thats the best insurance you could buy for an in tank fuel pump! Now that you can access it, the pump will never need replacing!

LoL, so true...I'm counting on it!

[48Mugs]

I know this thread is a couple of years old but I am starting a project just like this with an 89 E-350 bus. What did you use to mount the plywood to the metal frame? did you just screw right into the metal railings? Thanks.

[roach711]

I haven't seen Ferenzy on the forum for quite a while now, but it looks like he did screw the plywood down.

[48Mugs]

That's to bad. He had/has the same bus I do and am interested in how his conversion turned out. Thanks Roach711. I have been doing a ton of research here on how to handle the floors as mine will need to come up but I think I have a tin underbelly so fingers crossed.