Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Spinning crankshaft by hand on Vette

Thread Tools
 
Search this Thread
 
Old 09-02-2005, 07:48 PM
  #1  
TECH Senior Member
Thread Starter
iTrader: (4)
 
vettenuts's Avatar
 
Join Date: Jul 2004
Location: Little Rhody
Posts: 8,092
Likes: 0
Received 11 Likes on 11 Posts

Default Spinning crankshaft by hand on Vette

Getting ready to install some springs and rockers and trying to figure out how to spin the crank by hand since the steering rack is in the way. I have cut down a socket and hope to be able to figure out how to get a small handle on it. Has anyone else figured out a good trick to do this?
Old 09-02-2005, 09:24 PM
  #2  
LSxGuy widda 9sec Mustang
iTrader: (12)
 
-Joseph-'s Avatar
 
Join Date: Nov 2001
Location: Texas and Qatar
Posts: 3,043
Likes: 0
Received 0 Likes on 0 Posts

Default

You can spin it via the alternator center nut which is 15/16" also. You have to have the belt installed and hold pressure (tighter) against the tensioner at the same time as turning the alternator.
Old 09-03-2005, 11:28 AM
  #3  
TECH Senior Member
iTrader: (14)
 
ArcticZ28's Avatar
 
Join Date: Jun 2004
Location: Alexandria, VA
Posts: 5,125
Likes: 0
Received 4 Likes on 4 Posts

Default

Wow... sounds a lot harder than putting two water pump bolts in the cam and just spinning it for a Camaro/TA
Old 09-03-2005, 11:37 AM
  #4  
TECH Senior Member
iTrader: (42)
 
slt200mph's Avatar
 
Join Date: Jul 2003
Location: HOT'LANA, GAWJA
Posts: 7,067
Likes: 0
Received 8 Likes on 7 Posts

Default

He is talking about turning over the engine not spinning the cam to get the lifters off the camshaft..he is replacing springs and rocker arms...not much room under the front of a Corvette
Old 09-03-2005, 11:38 AM
  #5  
TECH Senior Member
iTrader: (14)
 
ArcticZ28's Avatar
 
Join Date: Jun 2004
Location: Alexandria, VA
Posts: 5,125
Likes: 0
Received 4 Likes on 4 Posts

Default

Bah you're right he said crank.... I got cam on my mind
Old 09-03-2005, 12:42 PM
  #6  
Staging Lane
iTrader: (1)
 
c5dream's Avatar
 
Join Date: Aug 2005
Location: Rockwall, TX
Posts: 89
Likes: 0
Received 0 Likes on 0 Posts
Default

Buy yourself one of those strap wrenches. Then strap it around the crank pulley and turn. Take hose plugs out to make turning much easier.
Old 09-03-2005, 02:14 PM
  #7  
TECH Senior Member
Thread Starter
iTrader: (4)
 
vettenuts's Avatar
 
Join Date: Jul 2004
Location: Little Rhody
Posts: 8,092
Likes: 0
Received 11 Likes on 11 Posts

Default

Two interesting options. Didn't think I could get the strap wrench on with the belt, do you remove the belt to do this? Where is a good place to get the strap wrench?
Old 09-03-2005, 02:38 PM
  #8  
12 Second Club
iTrader: (1)
 
3rdgenguy's Avatar
 
Join Date: Jul 2005
Location: toledo ohio
Posts: 201
Likes: 0
Received 0 Likes on 0 Posts
Default

if possible try removeing the spark plugs so the engine turns over easier
Old 09-03-2005, 03:32 PM
  #9  
Staging Lane
iTrader: (1)
 
c5dream's Avatar
 
Join Date: Aug 2005
Location: Rockwall, TX
Posts: 89
Likes: 0
Received 0 Likes on 0 Posts
Default

You will have to remove the belt to strap it around the pulley. You can get those strap wrenches at homedepot or lowes. Only thing you might have issue with is finding room around other accessories to turn it.
Old 09-03-2005, 04:16 PM
  #10  
TECH Veteran
iTrader: (33)
 
383LQ4SS's Avatar
 
Join Date: Nov 2001
Location: Port Richey
Posts: 4,266
Likes: 0
Received 0 Likes on 0 Posts

Default

Here is what I have done since I went to solid roller and have checked lash often.

I found the starter relay in the front distribution box...and carefully slid one wire into the power connection on the control side (low amp) of the relay and put that on a momentary switch.The other end of the switch went to ground. Now I just "bump" the motor over using the starter. Works like a charm and reduces time greatly. I have mine hard mounted now. Just be sure you never hit the switch while running. The car will not start like this becasue the ignition key is off. You dont even need the key in the ignition.

You can get a switch like this at Radio shack for $5 or less.

However..I have no clue where the distribution box or start relay is on the vette.
Old 09-03-2005, 11:29 PM
  #11  
TECH Resident
 
racecar's Avatar
 
Join Date: Aug 2004
Location: Portland Oregon
Posts: 875
Likes: 0
Received 1 Like on 1 Post

Default

I have a remote switch. It is just a big plastic push button with long wires and alligator clips. Clip one to the big positive battery cable on the starter, and the other to the small outboard terminal with the purple wire on the starter. You can tap the switch real quick and bump the motor over in very small steps.
Old 09-04-2005, 07:53 AM
  #12  
12 Second Club
iTrader: (1)
 
smask04C5's Avatar
 
Join Date: Dec 2004
Location: Winter Haven, Fl.
Posts: 607
Likes: 0
Received 1 Like on 1 Post

Default

Vettenuts, i just took belt off all accessories, removal of the alternator makes it an easier job of getting to valve cover on d/side. I just removed belt from all accessories and kept it on crank pulley. With spark plugs removed, and pulling on belt with gloved hands, standing on pass. side, there is enough friction around 300* of pulley to pull on belt from the bottom of the pulley to turn the engine over in the correct direction
Old 09-04-2005, 07:59 AM
  #13  
TECH Senior Member
Thread Starter
iTrader: (4)
 
vettenuts's Avatar
 
Join Date: Jul 2004
Location: Little Rhody
Posts: 8,092
Likes: 0
Received 11 Likes on 11 Posts

Default

Wonder if you can just turn the damper by hand then, with a set of mechanics gloves on?
Old 09-04-2005, 03:52 PM
  #14  
Staging Lane
 
Buckshot's Avatar
 
Join Date: Feb 2002
Location: Atlanta, GA
Posts: 60
Likes: 0
Received 0 Likes on 0 Posts

Default

I modified a 24mm socket and just use a 12" adj. wrench to turn it over. Very easy - even with the plugs still in.

Old 09-04-2005, 04:37 PM
  #15  
TECH Regular
 
Mirek's Avatar
 
Join Date: Aug 2003
Location: Berkley, MI
Posts: 414
Likes: 0
Received 0 Likes on 0 Posts
Default

I just use a large open ended wrench. I just angle it in there. Works like a charm although you will have to inch it along @ about 1/4 a stroke at a time.
Old 09-04-2005, 05:40 PM
  #16  
TECH Veteran
iTrader: (12)
 
Wnts2Go10O's Avatar
 
Join Date: Dec 2004
Location: Rockville, MD
Posts: 4,354
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by vettenuts
Wonder if you can just turn the damper by hand then, with a set of mechanics gloves on?
lol better have one hell of a grip. its VERY hard with everything attached..
Old 09-04-2005, 11:28 PM
  #17  
TECH Fanatic
iTrader: (12)
 
TT_Vert's Avatar
 
Join Date: May 2004
Location: Elgin, Illinois
Posts: 1,080
Likes: 0
Received 0 Likes on 0 Posts

Default

i was unable to use th alt pulley no matter how much tension i put on it. Someone weldeda bar on acut down socket for me and that worked. However to replace springs and readjust valves, the motor does not ever have to rotate. I've done it numerous times w/o it.

Dave
Old 09-04-2005, 11:43 PM
  #18  
8 Second Club
iTrader: (18)
 
eb02z06's Avatar
 
Join Date: Oct 2002
Location: Waterloo, Ontario
Posts: 2,609
Likes: 0
Received 0 Likes on 0 Posts

Default

Jack up the rear, put the car in 4th( assuming it's a 6 speed), and spin the wheels!
Old 09-04-2005, 11:54 PM
  #19  
TECH Fanatic
 
SideStep's Avatar
 
Join Date: Mar 2003
Posts: 1,942
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by Buckshot
I modified a 24mm socket and just use a 12" adj. wrench to turn it over. Very easy - even with the plugs still in.

I used this tool... worked great!!!

Old 09-05-2005, 01:31 AM
  #20  
pdd
TECH Veteran
iTrader: (3)
 
pdd's Avatar
 
Join Date: Aug 2003
Location: dudley mass
Posts: 4,156
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Buckshot
I modified a 24mm socket and just use a 12" adj. wrench to turn it over. Very easy - even with the plugs still in.

WERE'D DID YOU GET THAT???



Quick Reply: Spinning crankshaft by hand on Vette



All times are GMT -5. The time now is 12:29 PM.