New member from So. California w/1972 GMC 5500 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

909junedog · 05-12-2016, 04:46 AM

So, hello to all! I have purchased and partially restored a 1972 GMC 5500 Asplundh Line Lift truck with a 305E V6. When I get a minute I will post some pics of her, but for now I am trying to figure out why my driver side rocker rail is NOT oiling while I am showing plenty of oil pressure on the gauge. ANY ideas that will NOT have me completely tearing down the engine would be greatly appreciated. (PLEASE don't hold it against me that I am from California - we like old trucks out here too!)

TJ's Chevy · 05-12-2016, 10:06 AM

Disassemble the rocker system and check for sludge. My 305 V6 doesn't oil all that great on the top end when idling either, but reving it will increase the pressure and oil starts to go everywhere. Is it Bone dry? Or have you tried reving it? Is there a lot of sludge build up? What's the oil pressure?

909junedog · 05-14-2016, 10:23 PM

thanks for the help, but the problem still persists.

1ATony · 05-18-2016, 02:28 PM

Welcome to the site it's great to have you here
Tony

05-12-2016, 04:46 AM	#1
909junedog Registered User Join Date: Dec 2015 Location: san bernardino, ca Posts: 3	New member from So. California w/1972 GMC 5500 So, hello to all! I have purchased and partially restored a 1972 GMC 5500 Asplundh Line Lift truck with a 305E V6. When I get a minute I will post some pics of her, but for now I am trying to figure out why my driver side rocker rail is NOT oiling while I am showing plenty of oil pressure on the gauge. ANY ideas that will NOT have me completely tearing down the engine would be greatly appreciated. (PLEASE don't hold it against me that I am from California - we like old trucks out here too!)

05-12-2016, 10:06 AM	#2
TJ's Chevy Registered User Join Date: Mar 2013 Location: Southern Oregon Posts: 10,384	Re: New member from So. California w/1972 GMC 5500 Disassemble the rocker system and check for sludge. My 305 V6 doesn't oil all that great on the top end when idling either, but reving it will increase the pressure and oil starts to go everywhere. Is it Bone dry? Or have you tried reving it? Is there a lot of sludge build up? What's the oil pressure? __________________ 1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643 1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056 My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw

05-14-2016, 10:23 PM	#3
909junedog Registered User Join Date: Dec 2015 Location: san bernardino, ca Posts: 3	Re: New member from So. California w/1972 GMC 5500 thanks for the help, but the problem still persists.

05-18-2016, 02:28 PM	#4
1ATony Registered User Join Date: Oct 2009 Location: Pepperell,Mass Posts: 724	Re: New member from So. California w/1972 GMC 5500 Welcome to the site it's great to have you here Tony

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