Engine Seized

Reply Subscribe

Thread Tools

Search this Thread

Jun 2, 2023 | 06:20 PM

wmkmun

Thread Starter

Trailering

Joined: Jan 2006

Posts: 19

Likes: 0

Engine Seized

My 1949 V8 flathead parked under cover too long without being started and has seized up. Pulling vehicle did not break it loose. The engine had been meticulously rebuilt and ran like new last time it was started. Thank you for suggestions on this! Best solvent to use? I'm sure many of you have had this experience...

Jun 2, 2023 | 06:55 PM

moejr

Fleet Mechanic

Joined: Jan 2004

Posts: 1,678

Likes: 1,457

From: Mendon, Massachusetts

Pull plugs.... squirt mystery oil in cyl. & wait a few days........ try rocking in gear, ya might get lucky and have it running again.

Jun 3, 2023 | 12:54 AM

FortyNiner

Logistics Pro

Joined: Jun 2011

Posts: 4,992

Likes: 420

From: u-rah-rah Wisconsin

A 50/50 mix of acetone and ATF is more aggressive than MMO.

Jun 3, 2023 | 04:49 AM

F100fun

Laughing Gas

Joined: Jan 2020

Posts: 984

Likes: 437

From: South Dakota

Quote:

Originally Posted by FortyNiner

A 50/50 mix of acetone and ATF is more aggressive than MMO.

Agree, but also very flammable so be careful.

Jim

Jun 3, 2023 | 12:26 PM

ALBUQ F-1

Fleet Owner

Joined: Jul 2004

Posts: 27,283

Likes: 1,046

From: NM

Any chance there are critter nests inside it? Rocking it in 3rd gear, gently, with the plugs out after a soak will minimize the chances of breaking anything.

Jun 3, 2023 | 02:14 PM

ajsunnyB

Tuned

Joined: Apr 2023

Posts: 495

Likes: 69

From: North Texas

The MMO mix is a great Idea add a quart of MMO to the oil and 8 oz to 10 gallons of fuel like in a previous post fill the cylinders with Acetone MMO mix. Ide let it set for a week. Check you oil level before attempting a start up. If you pull it do it in third gear. If she starts,run it and change the oil. I would add MMO to the oil half quart should do, it.AJ