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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Nov 2004 Posts: 2,401 Former Workshop Owner | | Former Workshop Owner Joined: Nov 2004 Posts: 2,401 | Hello Bob, one way to break the motor loose is to put the transmission in 3rd or 4th gear and rock it back and forth. I prefer to use penetrating oil instead of diesel as that's what it is designed to do (penetrate).
If I were you, I would fill the cylinders with penetrating oil at least a few days (or even a week) before rocking the truck.
Welcome to the "Bolt"
Good Luck
John
~ J Lucas 2006 GMC Envoy 4.2 I6 2023 Ram 2500/Cumins 6.7 I6 2010 Jeep Grand Cherokee (Wife’s) 2002 Silverado 2500 Gas 6.0 1941 Chevy 1/2-Ton 1942 Chevy 1.5-Ton SWBIn the Gallery My Flicker Photos! | | |
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