Torque convertor to flywheel bolts - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 07-02-2011
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Torque convertor to flywheel bolts

I have recently swapped engines and just got the trans and the drive line back in. i am now trying to put the nuts on the torque converter bolts. got 3 of them in no problem, turning the crank with a socket and a breaker bar. the 4th is proving to be a problem. clockwise and counter clockwise i cant get the crank to turn far enough to reach the last bolt. pulled the spark plugs to release the pressure and still no help.

any ideas?
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Old 07-02-2011
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losen the three bolts it might be binding up it could be twisted
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Old 07-02-2011
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Did you feel the two click when sliding on the converter? It may not be in all the way and is binding up.

The engine should spin freely with no plugs in it, unless it has internal damage.
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Old 07-02-2011
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Originally Posted by Blhde View Post
Did you feel the two click when sliding on the converter? It may not be in all the way and is binding up.

The engine should spin freely with no plugs in it, unless it has internal damage.
x2
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Old 07-02-2011
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new developement... uninstalled trans and torque convertor, still same problem...tweaked camshaft? any new ideas?

thanks!
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Old 07-03-2011
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Spins a bit and stops or not at all?
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Old 07-03-2011
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7/8 of a full revolution. About 1 1/2 inches short of a full rev
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Old 07-03-2011
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Originally Posted by jmshanafelt View Post
7/8 of a full revolution. About 1 1/2 inches short of a full rev
Help me out here !

The engine will only turn over ⅞ th of a rev, it doesn’t rotate freely with the plugs out ?

I must be missing something, are we talking about the engine or trans ?
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Old 07-03-2011
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I have to think we are talking about a SOHC motor not an OHV. Sohc motors are interference fit motors and you are probably turning the motor against a valve indicating the timing has jumped and a valve may be bent. A SOHC motor relies on oil pressure to keep the upper timing chains tight with hydrolic pressure. Anytime you turn one of these motors without it running it can cause the chains to jump.
If it's an OHV motor you have something hitting somewhere such as a bent oil pan or ?
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Old 07-03-2011
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Originally Posted by wvcat View Post
I have to think we are talking about a SOHC motor not an OHV. Sohc motors are interference fit motors and you are probably turning the motor against a valve indicating the timing has jumped and a valve may be bent. A SOHC motor relies on oil pressure to keep the upper timing chains tight with hydrolic pressure. Anytime you turn one of these motors without it running it can cause the chains to jump.
If it's an OHV motor you have something hitting somewhere such as a bent oil pan or ?
x2 on something is wrong… That is what I have been saying, WTF is up.
It is a ’94 so I am thinking 4.0 Std Engine but no info in the profile.

Chk it out before going any further !
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Old 07-03-2011
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sorry guys, first time using the forums, and this is the first time i've have complications i couldn't figure out myself.
the motor is an ohv.

my trouble shooting consists of uninstalling the trans. and pulling the spark plugs. then marking the flywheel and the engine with a sharpie and turning the crank as far as i can both clockwise and counterclockwise. the end result is the same, it is about 1 1/2 inches short of a full rotation, the flywheel, in either direction.
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Old 07-03-2011
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x2 on something is wrong… That is what I have been saying, WTF is up.
It is a ’94 so I am thinking 4.0 Std Engine but no info in the profile.

Chk it out before going any further !
X3 X4… chk it out something is wrong !
The engine should rotate completely around any number of times… unless there is something in the way.
Could be a valve, could be a bolt went in through an open spark plug hole, other things too…
Pull the valve covers and see if there is anything broken under there or maybe some parts floating around like Vale Locks or a retainer, maybe a spring or two.

Luck to ya !
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Old 07-04-2011
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I would look in the cylinders to make sure there isn't anything floating around in there. Like a piece of a spark plug or something.

You may need special tool called a boroscope.

This is the cheapest I have found one of these, if you have a store near by you could "rent it" if your morals are up to it.

http://www.harborfreight.com/digital...era-67979.html
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