Hand turning the motor

DEpointfive0 · 07-12-2013, 12:30 AM

How can I do it, if possible? What should I disconnect?

synolimit · 07-12-2013, 12:44 AM

I've never disconnected anything. ALWAYS!!!! Turn in the direction of the natural rotation, clockwise. Just put a socket on the crank pulley and turn.

SouthArk370Z · 07-12-2013, 12:26 PM

Haven't done it on a 370Z, but, I agree with synolimit. Every other motor I've worked on was the same - put a socket with a LONG breaker on the crank bolt/nut and turn. Accessories won't add enough drag to make it worthwhile to remove the belt(s).

Edit: I have seen times where removing the radiator, alternator, &c made it a lot easier to get to the crank bolt and/or turn the engine, but, if you have enough clearance, you shouldn't need to remove anything.

Chuck33079 · 07-12-2013, 12:34 PM

Going from memory, since I'm not by my car. You might need to take off the overflow tank. That's about all I could think of that's kinda in the way.

Mitco39 · 07-12-2013, 12:34 PM

Pull the skid plate and get it from underneath. From up top the fans will make it pretty tight.

Chuck33079 · 07-12-2013, 12:36 PM

Yeah, it would be a hell of a lot easier from underneath.

Fountainhead · 07-12-2013, 01:03 PM

take out plugs to reduce compression causing more effort to turn? I've turned cranks by hand with ratchet and it was a b***h getting past what felt like the compression stroke on each cylinder. Of course my little chicken wings were straining like h*ll.

SouthArk370Z · 07-12-2013, 01:26 PM

Quote:

Originally Posted by Fountainhead

take out plugs to reduce compression causing more effort to turn? ...

Definitely something to try if the engine is too difficult to turn over. Might get lucky and VVEL leaves the valves config'd so that effective compression isn't too high.

Mitco39 · 07-12-2013, 01:36 PM

You shouldnt have an issue turning it by hand with a breaker bar. I can turn over a diesel engine by hand that runs a much higher compression than this car. You wont be able to turn it fast but she'll go.

DEpointfive0 · 07-12-2013, 02:04 PM

Sweet! Thanks for all the replies guys!
I was going to diagnose, or try to diagnose my car issues. But it's going to the dealership soon enough

07-12-2013, 12:30 AM	#1 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	Hand turning the motor How can I do it, if possible? What should I disconnect? __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

07-12-2013, 12:44 AM	#2 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3389	I've never disconnected anything. ALWAYS!!!! Turn in the direction of the natural rotation, clockwise. Just put a socket on the crank pulley and turn. Felix 808 and DEpointfive0 like this. __________________ 13 370z-

07-12-2013, 12:26 PM	#3 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	Haven't done it on a 370Z, but, I agree with synolimit. Every other motor I've worked on was the same - put a socket with a LONG breaker on the crank bolt/nut and turn. Accessories won't add enough drag to make it worthwhile to remove the belt(s). Edit: I have seen times where removing the radiator, alternator, &c made it a lot easier to get to the crank bolt and/or turn the engine, but, if you have enough clearance, you shouldn't need to remove anything. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma Last edited by SouthArk370Z; 07-12-2013 at 12:29 PM.

07-12-2013, 12:34 PM	#4 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Going from memory, since I'm not by my car. You might need to take off the overflow tank. That's about all I could think of that's kinda in the way. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

07-12-2013, 12:34 PM	#5 (permalink)
Mitco39 A True Z Fanatic Join Date: Aug 2012 Location: Edmonton Alberta Canada Posts: 2,089 Drives: 40th 370z Rep Power: 132	Pull the skid plate and get it from underneath. From up top the fans will make it pretty tight. Rusty likes this. __________________ 2007 Chevy Duramax - EFILive Tuned By Me 2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her My Build --> http://www.the370z.com/members-370z-...39s-build.html

07-12-2013, 12:36 PM	#6 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Yeah, it would be a hell of a lot easier from underneath. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

07-12-2013, 01:03 PM	#7 (permalink)
Fountainhead Track Member Join Date: Feb 2013 Location: FL Posts: 834 Drives: 2019 Civic Type R Rep Power: 14	take out plugs to reduce compression causing more effort to turn? I've turned cranks by hand with ratchet and it was a b**h getting past what felt like the compression stroke on each cylinder. Of course my little chicken wings were straining like hll. SouthArk370Z and olddudesrule like this.

07-12-2013, 01:36 PM	#9 (permalink)
Mitco39 A True Z Fanatic Join Date: Aug 2012 Location: Edmonton Alberta Canada Posts: 2,089 Drives: 40th 370z Rep Power: 132	You shouldnt have an issue turning it by hand with a breaker bar. I can turn over a diesel engine by hand that runs a much higher compression than this car. You wont be able to turn it fast but she'll go. DEpointfive0 likes this. __________________ 2007 Chevy Duramax - EFILive Tuned By Me 2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her My Build --> http://www.the370z.com/members-370z-...39s-build.html

07-12-2013, 02:04 PM	#10 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	Sweet! Thanks for all the replies guys! I was going to diagnose, or try to diagnose my car issues. But it's going to the dealership soon enough Mitco39 likes this. __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

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