I think I need help with my carbs part #2Hey, I think I know the problem:
"Currently my fuel lines go in this order - hard line out from tank to short
rubber line to long hard line up frame rail to rubber line under the battery
to fuel filter and then over to the carbs."
Where's the fuel pump?
Okay, just kidding, I'm sure you've got it plumbed in there somewhere, but
it did sound funny. Like the computer won't come on because it's unplugged.
Gordon Glasgow
Renton, WA
www.gordon-glasgow.org -----Original Message-----
From: Brucciani, Chris [mailto:CBrucciani@archinsurance.com]
Sent: Monday, April 24, 2006 5:19 AM
To: datsun-roadsters@autox.team.net
Subject: I think I need help with my carbs part #2
Well, the responses have been universal in narrowing the search to a fuel
flow problem. I took out the fuel sender and with a flashlight peered into
the tank to look for crud and it looks good. I coated the tank with the
Eastwood kit a few years back and it seems to be holding up well. Took
apart the carb float bowl and indeed the # 2 carb is dry. I took some of
the shims out of the fuel jet because there were like 8 shims in there.
Thought that might be the culprit. Nope. Went back and forth a few times
playing with the floats and nothing. Went back to basics and simply
unhooked the fuel line from the carbs to check flow. Little to nothing
flowing through there although my "bullet" style clear glass fuel filter
seemed to have gas in it at all times, I think that this is deceiving and I
may ditch the clear glass filter. I blew threw the fuel lines and they are
clear - as they should be since I replaced all the metal lines when I
cleaned the tank. I checked the flow of my electric pump and it works well
when sucking gas out of a gas can into a bottle. It is new and seems to be
in good working order.
So at this point I am pretty sure that if I can get fuel to the carbs I
will be ok. It could be that the fuel pickup tube (the bigger nut of the two
fuel tank lines goes to the fuel pickup tube right?) in the gas tank is
sufficiently narrowed from the Eastwood coating that it is of insufficient
size to get the flow rate that I need, or hopefully it is just that the
system is not completely airtight due to the fact that I have rubber hose
joining the hard metal fuel line in a few spots and the seal may not be up
to snuff. Currently my fuel lines go in this order - hard line out from tank
to short rubber line to long hard line up frame rail to rubber line under
the battery to fuel filter and then over to the carbs. The return is
similar - rubber hose off the back (starving) carb, to hard line through the
frame rail short rubber hose to hard line into the tank. So I am going to
try and go through things tonight and seal things up with better hose
fitment and maybe some gasket goo where the hose join the metal lines.
Thanks for all of the responses and I will let you know how things turn
out. Hope to get it to the Mitty with new brakes later this week.
Questions later on that.
Chris Brucciani
Marietta, GA
1968 2000 "Pinky"
1973 240Z
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