Forgotten '66 Oldsmobile F-85 Gives Derek & His Brother a Run For Their Money! | Roadworthy Rescues

Summary

Two brothers attempt to get a 1966 Oldsmobile running that has been sitting for 10 years. They find it has been modified for racing and has a big block 455 engine. After installing a new ignition and fuel system, they try starting it but hear loud knocking noises. Despite troubleshooting several possible causes, the engine won't spin freely, indicating serious internal damage. Unable to diagnose or fix the issues onsite, they ultimately decide to load the non-running car onto a trailer to bring to a shop, where they'll have to pull the badly damaged engine out for inspection and rebuild.

Takeaways

• 😊 The video features a 1966 Oldsmobile F85 that has been sitting for about 10 years and modified into a street/strip car
• 🚗 The car has a big block 455 V8 engine, 4-speed manual transmission, and other performance upgrades
• ⛽ Found the gas tank in the trunk indicating likely fuel system issues
• 😣 Attempts to start the engine reveal a loud knocking sound and it won't spin over
• 🛠 They test compression and lubricate cylinders to try diagnosing the knock
• 🔧 Further diagnosis points to a possible issue with the crankshaft or bearings
• 🚚 They decide repairs are beyond what they can do onsite, so will load it on a trailer and transport it to a shop with proper tools and space
• 🤔 Debate whether it's best to rebuild the existing engine or source a replacement motor
• 😒 Accept that the loud knock issue prevents safely running the engine in its current state
• 🔧 Major engine work needed before the car can be put back on the road

Q & A

What year and make of the car are the hosts working on?

They are working on a 1966 Oldsmobile F85.

How long has the car been sitting without running?

The car has not been running for about 10 years.

What modifications do the hosts notice on the car?

They notice that it has been turned into a street strip car with a crazy paint job, big snorkel, and tires.

What transmission does the car have?

The car has a 4-speed manual transmission.

What problem do the hosts encounter when trying to start the engine?

The engine makes a prominent knocking sound and won't spin over.

What do the hosts try to do to diagnose the knocking problem?

They remove the spark plugs and pour Marvel Mystery Oil into the cylinders to try to lubricate the engine and isolate the source of the noise.

What conclusion do the hosts reach about the condition of the engine?

They conclude that they will likely need to pull the engine out and rebuild it due to the severity of the knocking.

What plan do the hosts have for the car?

They plan to fully restore the car.