Rusty Runs! -- 1971 GMC Vandura --

Kinja'd!!! by "Rusty Vandura - www.tinyurl.com/keepoppo" (rustyvandura)
Published 08/28/2017 at 00:05

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I started Rusty on Saturday. The gentleman I bought it from said he’d had it running last July and there was no evidence to suggest otherwise. Engine has 80,000 miles on it. I removed the spark plugs and introduced engine oil directly into the cylinders and manually turned the engine with the fan. There was a bit of a tight spot initially, probably due to some rust in one of the cylinders, but a bit of gentle back and forth got me past that. I was quickly able to rotate the crank completely. I added more oil to the cylinders, then turned it over with the starter a good bit to build oil pressure.

I wired a legitimate, if temporary, ignition switch that only required four separate trips to O’Reilly’s, which I still insist on calling Kragen.

I bought a couple gallons of fresh gasoline and dropped some new fuel line directly from the fuel pump pickup into the fuel can which I placed underneath. Another squirt of fresh oil into each cylinder, and more cranking to massage the fuel pump and fill the carburetor bowl. I moved the throttle lever two or three times — they rebuilt the Rochester Monojet carburetor last Summer — until I could hear gasoline squirting from the accelerator pump, but quit before I risked flooding. Replace the plugs, switch on the ignition, and crank.

I had to crank two or three times and operate the choke — when was the last time I operated a choke on an automobile, maybe 25 years? — and it came to life. A bit lumpy until it got thoroughly warmed up, but no smoke to speak of in the exhaust. The engine let some coolant out from under the head gasket at the back of the engine, but that seemed to stop once things got warmed up. My friend Jerry, an older gentleman with over 50 years fooling with Stove Bolt engines, recommends retorquing the head bolts to see if that tightens things up.

And we’re off!

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Replies (12)

Kinja'd!!! "lone_liberal" (token-liberal)
08/28/2017 at 00:58, STARS: 0

It’s alive!!!

Kinja'd!!! "sony1492" (sony1492)
08/28/2017 at 01:08, STARS: 0

 I’ve heard of an old motor not having compression then someone going in and doing what you did and getting it running. What is the oil doing in the cylinders?

Kinja'd!!! "Rustholes-Are-Weight-Reduction" (rustholes-are-weight-reduction)
08/28/2017 at 01:26, STARS: 0

Given it’s age, it’s probably got a copper head gasket, can confirm, tightening the screws might help.

Hopefully it won’t eat oil when done, you could check your cylinder walls with an endoscope

Kinja'd!!! "Rustholes-Are-Weight-Reduction" (rustholes-are-weight-reduction)
08/28/2017 at 01:31, STARS: 1

In a first step, it helps moving sticky pistons, moving the pistons can remove light surface rust. And when starting, it can give you a better compression by sealing imperfections, until it starts that is

Kinja'd!!! "sony1492" (sony1492)
08/28/2017 at 01:32, STARS: 0

Thank you, that makes sense.

Kinja'd!!! "shop-teacher" (shop-teacher)
08/28/2017 at 07:00, STARS: 0

HUZZAH!!!!

Kinja'd!!! "Die-Trying" (die-trying)
08/28/2017 at 10:30, STARS: 0

NICE WORK........ thats some good progress there.....

make sure that you run a voltage drop between the coil and the power switch, so that it doesnt get the solid 12v all of time( it will long term kill a coil if it is not specifically designed for 12v). the coil should just be getting the full 12v during cranking..... the voltage drop looks like.... its that white thing with the blue wires....

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called a ballast resistor......

but that sure feels good, hearing that engine light off for the first time. nice work.........

Kinja'd!!! "Rusty Vandura - www.tinyurl.com/keepoppo" (rustyvandura)
08/28/2017 at 18:13, STARS: 1

In my case, only to lube the cylinder walls and oil things up after a year or more of disuse.

Kinja'd!!! "Rusty Vandura - www.tinyurl.com/keepoppo" (rustyvandura)
08/28/2017 at 22:36, STARS: 1

Thanks. There’s an entire HEI setup in the parts pile... Gotta retorque the head bolts first. Mustn’t there be a resister in the van somewhere already?

Kinja'd!!! "Rusty Vandura - www.tinyurl.com/keepoppo" (rustyvandura)
08/28/2017 at 22:38, STARS: 0

Life functions are active. I’d like to drive it to my friend’s shop and use his steam cleaner on it.

Kinja'd!!! "Die-Trying" (die-trying)
08/28/2017 at 22:43, STARS: 0

there should be, some of those had a wire that did the same thing.

Kinja'd!!! "lone_liberal" (token-liberal)
08/28/2017 at 22:57, STARS: 1

That can be dangerous for old cars. Sometimes the dirt is the only thing holding them together.