Vapor lock?
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RE: Vapor lock? - 10/4/2007 2:28:07 PM
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cwb
Posts: 1508
Joined: 5/13/2007
From: eastern NC
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Hey George...
If you got any jam in yer' fuel lines, it will show if you can do pressure test as recommended in the 'TPI article found" post that I did.
The article said test two ways in the driveway - with vacuum connected, without vacuum connected, and on the road under full throttle. For the third, ya' gotta' get the missus to run alongside with the guage in one hand, and a pencil and paper in the other...
Just kiddin' there; ya' gotta get the guage connected to a 2 foot lenth of line, and tape it to the windshield. It's the only way I've heard of, 'less you got one of them drum roller set-ups in yer' garage...
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RE: Vapor lock? - 10/4/2007 2:37:38 PM
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blueshark
Posts: 2170
Joined: 7/20/2006
From: Dickson, TN.
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Charles, I did a pressure check setting in the driveway not too long ago and it was right on the money. I'll do the full throttle running down the road thing and see what transpires. I'll also check out that artical...I think I saved it. Thanks, George
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"Welcome to Tennessee,
The patron state of shootin' stuff".......Shooter
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RE: Vapor lock? - 10/4/2007 2:44:10 PM
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rshiver
Posts: 381
Joined: 8/4/2007
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Howdy Blueshark, lets just leave the .44 cal.universal wrench in the tool box for the time being.
I would doubt vapor lock, unless you have a fuel line laying against or close to an exhaust pipe. It takes heat to cause vapor lock.
You can do like cwb said and place a fuel pressure guage somewhere so you can watch what the pressure is doing in real time, and especially when it starts acting up.
One other thing, mine did basically the same thing one time. The connection at the MAF sensor had a corroded connection. If that's not connected good, it won't run
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RE: Vapor lock? - 10/4/2007 2:57:50 PM
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blueshark
Posts: 2170
Joined: 7/20/2006
From: Dickson, TN.
Status: offline
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rshiver,
I Appreciate the reply. I will check the connection at the MAF and do the gage thing when I pick my wife up this evening. I figured they would have engineered the possibility of vapor lock out long ago but you never know. Doesn't hurt to ask, LOL.
These little annoying problems make me want to sell the '87 and finish the BB C3 real quick. All this electronic dooky..... Give me a carburetor and points any day.
_____________________________
God Speed Rich.
www.larosadesign.net
Design, Engineering,Tooling
www.stantonscustomrods.net
"Welcome to Tennessee,
The patron state of shootin' stuff".......Shooter
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RE: Vapor lock? - 10/4/2007 3:01:28 PM
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cwb
Posts: 1508
Joined: 5/13/2007
From: eastern NC
Status: offline
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quote:
ORIGINAL: blueshark
All this electronic dooky.....
You just described the whole planet .
Figure how it is, or pay someone else to rip you off, and NOT fix it.
_____________________________
Don''t know nuthin''; ain''t never got paid for wrenchin''...
[image]
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RE: Vapor lock? - 10/4/2007 3:08:54 PM
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blueshark
Posts: 2170
Joined: 7/20/2006
From: Dickson, TN.
Status: offline
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quote:
ORIGINAL: cwb
quote:
ORIGINAL: blueshark
All this electronic dooky.....
You just described the whole planet.
Figure how it is, or pay someone else to rip you off, and NOT fix it.
Or... gut the engine box and install an old school thumper.
And for being ripped of and not fixing it...That's another use for the .44 cal. universal wrench....eh?
_____________________________
God Speed Rich.
www.larosadesign.net
Design, Engineering,Tooling
www.stantonscustomrods.net
"Welcome to Tennessee,
The patron state of shootin' stuff".......Shooter
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RE: Vapor lock? - 10/4/2007 6:50:37 PM
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mech259
Posts: 1759
Joined: 1/22/2006
From: Lumberton, Texas
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Blueshark, there are actually about 3 things that would make it act as you described. MAF as rshiver said, ignition, and fuel control (which would include injector pulse, fuel supply which would include power to the pump as which there are 2 sources for that, and pump itself). The 2 sources are the fuel pump relay and oil pressure switch which are redundant.
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