1998 Airstream B190

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Re: 1998 Airstream B190

Postby tdashmike » Mon Jul 09, 2018 10:35 am

skater wrote:
tdashmike wrote:I haven't compared the temp difference between 120V and propane but yesterday I checked again and it was 28F in the freezer and 38F in the area below. Do these number look right? I didn't have time to build the manometer yesterday. I'm trying to make a pad for the van, hopefully I'll be done in a few days. You can see from the pictures that it's just grass right now.


What's the thermostat set to? If it's at max, it seems rather high. :(


Yeah it's on max, that's good to know.
tdashmike
Weekend Camper
 
Posts: 48
Joined: Mon Jun 11, 2018 6:17 am

Re: 1998 Airstream B190

Postby tdashmike » Tue Jul 10, 2018 3:31 pm

I think I'm just going to run the fridge off an inverter while I'm driving instead of buying a new heating element. Installed a new converter yesterday, should have time to check the gas pressure today.

Completed the gravel parking spot today also.
tdashmike
Weekend Camper
 
Posts: 48
Joined: Mon Jun 11, 2018 6:17 am

Re: 1998 Airstream B190

Postby tdashmike » Tue Jul 10, 2018 11:17 pm

I finally built up the manometer and it looks like my pressure regulator is bad, only 9 in, should be 11 in. Another problem I found is that if I leave the gas stove on and connected to the manometer and turn off the shutoff valve at the tank and release some pressure with another stove burner to say 5 inches it will climb slowly back up to 9 in so I think the main shutoff valve is bad also. I want to check at the back of the fridge but I will need to get an adapter because the outlet is too big for my 1/2 hose.

Stove connection:
Stove.jpg
Stove.jpg (105.95 KiB) Viewed 26 times

Manometer:
Manometer.jpg
Manometer.jpg (68.67 KiB) Viewed 26 times


EDIT:
I did some more research and it looks like the regulator on the stove should limit it to 10 inches so I really need to check at the test port on the back of the fridge to make sure it's right.

Also, I watched this youtube video and it helped to confirm that my shutoff valve is probably leaking.
https://www.youtube.com/watch?v=dK46tDIOzUA
tdashmike
Weekend Camper
 
Posts: 48
Joined: Mon Jun 11, 2018 6:17 am

Re: 1998 Airstream B190

Postby tdashmike » Thu Jul 12, 2018 10:42 pm

Finally found an adapter for the manometer hose. Couldn't find one locally so I ordered one from Amazon. One tip with the DIY manometer, add enough water so that the water does not pass the halfway point on the bottom of the loop or you'll get a fountain of water plus escaping gas. The Dometic 2301 refrigerator has a 1/4" NPT pressure test port.

Before I adjusted the regulator the pressure was 10.5" water column with nothing but the fridge on. After the adjustment, it was 12.1" w.c. with only the fridge on. If I turn on the furnace, the back two stove burners and the fridge, the pressure is about 11.1 w.c. You can actually see a visual difference, the stove flame is about 3 times larger now with no yellow flames.

Setup:
Setup.jpg
Setup.jpg (64.12 KiB) Viewed 15 times


Test Port With Adapter:
Test Port With Adapter.jpg
Test Port With Adapter.jpg (83.39 KiB) Viewed 15 times


Manometer (before regulator adjustment):
Manometer.jpg
Manometer.jpg (41.94 KiB) Viewed 15 times
tdashmike
Weekend Camper
 
Posts: 48
Joined: Mon Jun 11, 2018 6:17 am

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