motor locked on the stand????

Supra_Villan

Supra_Villan

needs his car done
Nov 10, 2007
662
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Wellsville MO
i was turning my motor last night on the stand with my hands by the crank pulley it is fully assembled long block, but i was calibrating the cps, from 0-10* it turned relativly easily, but when i got much futher it got pretty hard, now the arrow on the crank pully is pointing right at about 5 o clock in the conterclockwise directions and i could not turn it anymore, so i figured i would sleep it off and be back tomorrow, whats wrong here? it was professionally assembled by a good machinist!!! :1zhelp::1zhelp::1zhelp:
 
S

supramk3man

Supramania Contributor
Jun 26, 2005
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Was you just turning the motor by hand if so you might try getting a socket and try turning it. I'm not sure and i'm sure some will post for sure but it might just have made compression.
 
Supra_Villan

Supra_Villan

needs his car done
Nov 10, 2007
662
0
0
Wellsville MO
KicknAsphlt;1098083 said:
Do you have the spark plugs in the motor....? If so, take them out.
Click to expand...
thanks for coming to my rescue :icon_bigg but i made the thread this morning, i had the recollection at work about this and took the liberty of punching myself in the face this morning...:eek:wned: thanks though guys
GrimJack;1098092 said:
qft.
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what does qft. meant?
 
I

IJ.

Grumpy Old Man
Mar 30, 2005
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I come from a land down under
Supra_Villan;1098477 said:
thanks for coming to my rescue :icon_bigg but i made the thread this morning, i had the recollection at work about this and took the liberty of punching myself in the face this morning...:eek:wned: thanks though guys

what does qft. meant?
Click to expand...

One more time for good measure ;)
 
Supra_Villan

Supra_Villan

needs his car done
Nov 10, 2007
662
0
0
Wellsville MO
Rennat;1098491 said:
you couldnt turn the motor with the plugs in though?

either...

man up nancy...

or double check everything is right.
Click to expand...

not a nancy....
i could turn but once it got half way around and had built up compression i could go no further.
what all should be double checked?
 
NeatOman

NeatOman

Never know enough!
Oct 5, 2006
233
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Addison, IL
Yeah... there might be something wrong, it is a low compression engine 8.5 to 1... it was almost fun.

A 7M-GE is hard to do by hand with something like 9.5+ to 1 but still not that hard.
 
Rennat

Rennat

5psi...? haha
Dec 6, 2005
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Tracy, CA
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my first thoughts are the bearings being too tight, or the wrong torque on the connecting rod bolts.... cause my motor with spark plugs in wasnt that hard to turn... so im just sayin...

and maybe his version of 'locked' is totally different than mine... who knows. im not there to actually spin the motor.

btw... im speaking from personal experience, helped a friend rebuild his motor and he mixed up his rod caps...
 
bowsercake

bowsercake

New Member
Aug 24, 2005
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Irvine, Ca
If the engine has been sitting for a long time then the oil/assembly lube on the crank/pistons might have deteriorated over time. If you still cant get it unstuck try relubricating everything.
 
Supra_Villan

Supra_Villan

needs his car done
Nov 10, 2007
662
0
0
Wellsville MO
well i took out the plugs and got a socket on the crank pulley bolt, it was rough for a little bit, but after that it strangely freed up like initally was at 0*-10* all the way around, not abnormally loose but i wasnt popping any blood vessels anymore
 
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