Hi All

This may sound like an obvious question to many but it's not something I've had to do to date!

What is the best way of manually turning over a V12 (circa 1989, carburetor)? I am assuming it's a case of using a wrench on the crankshaft but would appreciate any do's / dont's / gotcha's.

Also, what size socket is required?

Thanks

 

32mm rings a bell, been a looooooong time since I needed to do that.

DO NOT rotate the engine BACKWARDS (anti-clockwise). Timing chain tensioner damage (HUGE $$$$) may occur. Note I said MAY, as some have done it and no snapping sound of the plastic tensioner, I have NEVER been so lucky. So if timing it this way, and you go past your mark, dont be lazy, GO ROUND AGAIN, its only 12 cylinders.

Other than that, not rocket science.

 

Again, thanks Grant.

Do they turn easy - I imagine it taking a fair bit of effort for an engine that size?

Cheers

 

NO.

My wife used to turn any of ours whilst I watched the timing marks from down under, and no effort at all. Our HE's are all 12.5:1, so a bit of resistance as comp comes up, but we use a 24" breaker bar, and dont rush it, and as I said NO issues.

Couple of stubbies for inner lubrication makes it sooooo easy.

 

Hmm, hadn't thought about the stubbie option. Obviously an essential piece of equipment for this type of work!

Cheers