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| Re: [GMCnet] '73 - engine department question [message #322274 is a reply to message #322272] |
Thu, 17 August 2017 20:07   |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Peer Oliver Schmidt wrote on Thu, 17 August 2017 19:57My friend is trying to fix some issues, and came across
http://possy.de/whatis.jpg
Anyone know what that is for?
--
Best regards
Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA
'76a Eleganza II, CA
'73 Sequoia, NH
Peer,
The picture is pretty good, but the interesting feature is still kind of hidden.
My guess, based on some experience, would be that it is a pressure tap from the fuel line. Some PO silver brazed a 1/4 SAE flare in there and then the pressure gauge and line was removed. Along the way the fitting got capped, but he didn't have a 1/4 SAE flare cap, he just used what he had.
I like the fact that the rubber line is starting to crack.
Matt - hold up at the FMCA lot in Cinci
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] '73 - engine department question [message #322292 is a reply to message #322272] |
Fri, 18 August 2017 08:08 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Looks like a good way to set the place on fire. Wait till the engine is >cold< and then take the rubber hose off and put a proper cap on the line. It might have been for a gauge or someone's idea of how to beat vapor lock,. Either way, get rid of it.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] '73 - engine department question [message #322293 is a reply to message #322272] |
Fri, 18 August 2017 08:41 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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That hose is perished as the Brits say. No rubber between pump and carb is the mantra. Also what is the plastic vacuum Y just above the fuel inlet? That style usually has a metal restrictor orifice in one leg.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] '73 - engine department question [message #322296 is a reply to message #322272] |
Fri, 18 August 2017 09:02 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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Senior Member |
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Guessing it was maybe for an aux gas can (Boat can) to bypass the mechanical pump. Perhaps the tanks were full of crap and in lieu of dropping the tanks they brazed in the fitting...
Or that was the way someone ran an electric fuel pump to the carb.
Either way, I would replace that line with a braided heat shield line from one of the Jims.
http://www.appliedgmc.com/prod.itml/icOid/853
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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