Tightening the harmonic balancer bolt on JZ's

[love ke70]

i wondered the same thing...
bloody automatics

[Dale]

Fill a cylinder with water or oil, put the spark plug back in and do it up.. just remember to crank it over a little without the spark plug in afterwards to get the fluid out

[ViPeR_NiPPleX]

pull out the starter motor and jam a screwdriver between two teeth?

[Cuzzo]

Fill a cylinder with water or oil, put the spark plug back in and do it up.. just remember to crank it over a little without the spark plug in afterwards to get the fluid out

Fill a cylinder with water?? Are you kidding?

[Esteban]

Fill a cylinder with water or oil, put the spark plug back in and do it up.. just remember to crank it over a little without the spark plug in afterwards to get the fluid out

Crikey!!!!

[TooF]

fill with oil, ive seen it done to undo the hamromic balancer bolt on hondas.

[TooF]

fill with oil, ive seen it done to undo the hamromic balancer bolt on hondas.

*edit*
not that i really like the solution.. especially on an engine that isnt about to be torn down.

[Dale]

Fill a cylinder with water?? Are you kidding?

No.. it's only going to be in there a short period of time anyway, then once it's started fuel + ignition = heat which will mean it's all gone

[Cuzzo]

We're talking how much water? Have you tried it?

[love ke70]

you would only need enough water to fill the combustion chamber, just make sure when you put the fluid down there you do it on the compression stroke
i see no harm in this method.
its like self induced hydraulic lock.
and yada yada that bends rods, only at revs does it cause bent rods etc coz of the sudden hitting a brick wall type feeling the piston experiences. at 2 or 3000 rpm thats gonna be an issue, turning the motor over by hand and loading it up against the lock wont be an issue.
as soon as tightened, you just remove all the plugs and crank it over to get all the fluid out of hte cylinder.
the last traces will burn off in a jiffy once started...

[Norbie]

Filling the combustion chamber with water isn't a smart idea. It's inevitable some of that water will end up in the crankcase, which obviously isn't good. Oil on the other hand is fine.

[ReQuieM]

Was thinking the same thing.

How will the rings hold up to a sustained pressure like that? I understand the pressure they're under in a compression stroke but that fractions of a second not a few minutes...

[Dale]

Well I did say oil or water personally I'd do it with oil but a very known reliable source from these forums have said before if you were to use water the amount that ends up in the crankcase shouldn't be enough to cause concern (unless your rings were well shagged).

you would only need enough water to fill the combustion chamber, just make sure when you put the fluid down there you do it on the compression stroke
i see no harm in this method.
its like self induced hydraulic lock.
and yada yada that bends rods, only at revs does it cause bent rods etc coz of the sudden hitting a brick wall type feeling the piston experiences. at 2 or 3000 rpm thats gonna be an issue, turning the motor over by hand and loading it up against the lock wont be an issue.
as soon as tightened, you just remove all the plugs and crank it over to get all the fluid out of hte cylinder.
the last traces will burn off in a jiffy once started...

hydraulic lock is exactly what it achieves

[gianttomato]

Yeah....um, don't do that.

I use a variant of madmont's method - a chain bolted to one of those torque convertor bolts and then the other end is bolted to the block somewhere. No movement once the slack off the chain is taken up.

I like madmont's method even more than mine.

[Dale]

we had to do this to a honduh, after my mate tried to crack off the crank pulley bolt using spanner and starter motor.....

honduh motors spin backwards, but the crank pulley bolt is not reversed bugger....

you may get a little bit of water going into sump, but not enough to be of concern, and it sure as hell stops the motor spinning around.. to remove said water, remove spark plug and turn over the motor by hand..

For the record