Bolts Driving Me Nuts!

[Padre]

Getting ready to hang my Lycoming O-360-A1A on my Patrol. Praying that somebody wiser than I can tell me the size of the bolts that attach the engine to the mount. Many thanks!

[Mark Goldberg]

You might consider installing engine with hardware store bolts. Then, when you have the length, replace them one by one with proper AN hardware. Mark

[Padre]

Thanks, Mark! I will stop by Ace Hardware on my way to the hangar.

[spinningwrench]

I used -35's. If your hardware store bolts are too long you won't be able to tighten the top left bolt because it interferes with the pushrod tube. Hope your engine mount goes easily, I just finished struggling with mine.

[Padre]

Many thanks, Mr. Wrench. That gives me a good starting place. We're still having fun!

[noema]

I recently ordered AN7-35s and AN7-36s because I wasn't sure after mounting and measuring the hardware store bolts. Should know more in a few weeks.