| [GMCnet] Taft GMC [message #102480] |
Sun, 10 October 2010 22:04  |
wdminor
Messages: 15
Registered: February 2004
Karma:
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Junior Member |
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While checking out the Taft's coach in Wausau, WI., I noticed many
things that everyone was questioning.
All rubber fuel lines had been replaced during the restoration in MI.
An Additional fuel filter had been installed in the rubber line going to
the fuel pump.
All rubber fuel lines were securely clamped.
New low profile intake manifold (RPM on aluminum casting) without
crossover was in place with electrically operated choke.
Engine was virtually spotless (fresh rebuild)
Firing order was OK.
New brake lines throughout.
Engine started OK, but idle was less than smooth compared to my 455's
No vacuum advance movement noted during initial testing - movement OK
after bypassing TVS.
Test drive confirmed fuel starvation even though the fuel pump was new
and both filters had been previously checked.
Personally checked carburetor filter due to feeling pulses from fuel pump.
Found carb filter was 'bowed' out due to pressure and unable to blow
through.
Checked the Wal-Mart next door for filters -not available.
Drove to nearby CarQuest and we purchased 2 filters (1 for spare) for $4.64.
Installed 1 filter ad restarted engine.
Immediately noticed engine was idling slightly smoother and pulling better.
Test drive confirmed full power was now available with Quadrajet
secondaries kicking in fully.
Take care!
Bill Minor
Antioch, IL
3 - GMC 23's
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