| Author |
Message |
Peter E (Sdibaja) (64.165.10.0)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 11, 2004 - 5:00 pm: | |
I am having a leak back problem on our 4905, in the process of finding the air leak I want to set up a primer pump... electric.
I think I will put it on the top of the tank on a bypass loop with valves...
Any Ideas?
Peter |
Jim Stacy (32.101.44.139)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 11, 2004 - 5:31 pm: | |
You can mount it in the engine compartment, if you chose. The easiest installation is to put it in parallel with a check valve (or a ball valve if you don't trust the chck valve).
Jim Stacy |
Peter E (Sdibaja) (64.165.10.0)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 11, 2004 - 6:02 pm: | |
Jim:
will the little 12v electric pump suck up 30' of dry line?
the engine compartment would be handy, easier to access a ball valve |
Jim Stacy (32.101.44.234)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 11, 2004 - 7:26 pm: | |
The motor driven units should work if placed low on the firewall. The transistor units seem to need a fluid fill to work. You are correct that pumps work better as pushers mounted low enough not to lose prime but that isn't always convenient.
Jim Stacy |
BrianMCI96A3 (69.34.170.181)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 11, 2004 - 8:28 pm: | |
Most ordinary fuel pumps work better the closer to the tank they are.
PLUS, with a tank mounted fuel pump you might be able to diagnose the location of the cracked line by running the prime pump, AND you MIGHT even be able to run the coach using the prime pump pump to get you to someplace to repair the line.
An engine mounted Prime pump may simply suck air from the cracked line.
Brian |
BrianMCI96A3 (69.34.170.181)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 11, 2004 - 8:30 pm: | |
Oh, and your leak back might well be the DD check valve.
Brian |
Dwight (65.136.54.81)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 11, 2004 - 11:32 pm: | |
There is a picture here, if you can pull it up, of a electric fuel pump hooked in parallel to the fuel inlet line..
copy and paste the addrwess below to you browser in the address line
http://photos.groups.yahoo.com/group/rts-bus-nuts/lst?.dir=/Dwight%27s+RTS/Designs+Addons+Floor+Plan&.src=gr&.order=&.view=t&.done=http%3a//briefcase.yahoo.com/ |
FAST FRED (65.154.177.148)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 12, 2004 - 5:34 am: | |
A small utility pump as used to blead brakes works great,Mighty Mite.
If you happen to run out of fuel it will pull fuel all 30 ft thru the primary , and if you keep pumping it will fill the secondary too.
To troubble shoot an air leak , just reverse the pump , put the pickup in a can of ATF and pump away , the red drips are the air leak.
Works for me , (although I haven't run out of fuel(( yet)) , I do change the old style fuel filters annualy.
FAST FRED |