View Full Version : Old Gas

Ralph Cordell
09-15-2005, 11:26 AM
My 87 GN was stolen and recovered several years ago and has been sitting in my driveway for some time. It ran fine several years ago when I put it up (changed the oil and filter then). I'm about done with repairs and am fixin to fire it up. I had drained the cooling system and have added new.

Concern - there was 2-3 gal of gas in the tank w no stabilizer. I want to get it out/diluted before I hook it up. Suggestions on how - siphon does not seem to work. Too low? Thought I would add a couple of more gallons, try to siphon it out, add a couple of more, repeat a couple of times. Other option is to drop the tank (ugh) - have done that before.

Any other things I need to be concerned about. I thought I'd crank it over a few times to get the oil moving before I really fired it up. Sorry if this on the FAQ or other threads.

-Ralph Cordell
59 MGA
84 TR
85 5th Ave
87 GN
96 Roadmonster

09-15-2005, 11:42 AM
I would drop the tank and check for rust inside. You can then get most of the old gas out of the tank. Then i would replace the fuel filter and run two tanks of gas with tolene mix and the replace fuel filter again.

I would pull the cam sensor out and get an oil primer to prime the engine since its been sitting so long. The oil has prolly drained off the bearings.

Ralph Cordell
09-29-2005, 03:45 PM
Cherry Pie and I've been communicating off line but I thought I'd take this forum to thank him for his advice. I didn't really want to drop the tank but am sure glad I did. I had 2-3 gal of old gas that smelled a bit like paint thinner and looked like something that had been left in the urinal over the weekend. The sleeve on the old fuel pump had turned to a semisolid black goo and there was a moderate amount of corrosion on the hanger/sender. The pulsator looked a bit like something off the ocean floor. I've emptied the tank and will rinse it out tonight with the hose and soap - several times. I'll then blow air through it (either compressor or leaf blower). Installed an XP pump I had sitting around after cleaning hanger with a bit of steel wool and WD-40. Will remove fuel filter, blow out lines from both directions and replace injectors. Have pulled plugs and shot some Marvel Mystery oil into the cylinders. Will prime pump (thanks Cherrypie for info on that). If y'all think it would be useful, I'd be glad to write this up for the tech section. It is a dumb thing to ignore good dogs, beautiful women or hot cars for too long.

09-29-2005, 03:57 PM
New submissions to the tech area of the web site are always welcome! Just drop gnttype-info@gnttype.org a note and we'll get it up there. Be sure your name and info is on it so you get proper credit.