JDM Crankshaft pulley 7MGE

[jerry12345]

Due to stupidity I purchased a JDM 7MGE engine. Want to re-do the timing belt. I cannot get the crank pulleyto break loose. The engine is out of the car. I just want to verify that there is no possiblity that a JDM engine would have left handed threads on the crank bolt. So far I have tried a breaker bar and a 1/2 inch air impact operating at 110 lbs. I have remove several of these from US engines with nowhere near the problems I have now.
Thanks in advance

 

[GrimJack]

Funny you should mention stupidity, because you posted this in the wrong section.

Thread moved.

The threads are normal on all 7M engines. The torque is 195 ft/lbs IIRC, so keep going.

 

[shaeff]

the rattle gun has never let me down. ever.

 

[BlackMKIII]

Get yourself a big fat impact gun and just go nuts on it with a good socket. It WILL come off, eventually.

 

[BlackDynamite]

i thought it was 215 ft/lbs...whoops...Well i took mine off in the car and had to use a 4 foot cheater bar made of iron...lol...i was turning the engine, so i had a friend get under the car and wedge a screwdriver in the flex plate and the side of the engine.

 

[amichie]

What you need is a big tool.

I made this out of a piece of stainless.

 

[sbenson619]

I used a tool called a Crank stopper from matco tools. one of the master techs at my shop said it always works if the impact wont break it loose. that and a 2ft long breaker bar and a pipe broke it loose.

 

[BlindRonin]

If your talking about breaking the pully bolt loose you need to get a harder hitting impact. Grim is absolutely right 110 wont even budge that. We have a huge 500lbs impact Cannon we use when removing pully bolt, and strut mounts. Of course I cut it down to around 250.

 

[cuel]

110 psi. on the hose = 1000 ft. lbs. tq.(reverse) on my 1/2" impact gun. That pulley bolt comes loose pretty quick

With the motor out, drop the oil pan, and wedge the crank. Then get on it with a breaker bar and cheater pipe.

 

[AW11inVa]

Is the pulley that comes on the JDM engines the same as the one on the supra. My supra pulley is pretty rusty and the one on the JDM I have is nice and clean I would rather use that if I can.

 

[AJ'S 88NA]

Should be the same, check the size and weight.

 

[Nalleywhacker]

yeah no impact at our shop would touch my crank bolt it was hold the flywheel and get the breaker bar and a 2ft cheater bar and my full body weight to break it loose. (btw i weigh 300lbs!)

 

[shaeff]

^ then you have weak impact guns. if you broke it with a breaker bar and 2ft cheater bar, you have weak impact guns.

 

[BlindRonin]

Always oil Your impacts ppl no joke! They will firm up and hit harder after you re oil them even if its been a REALLY long time. My Ingersol was so weak till I oiled it then it felt twice as strong.

 

[BlackMKIII]

yeah no impact at our shop would touch my crank bolt it was hold the flywheel and get the breaker bar and a 2ft cheater bar and my full body weight to break it loose. (btw i weigh 300lbs!)

So you're saying it took 600 ft/lbs? That's quite a bit, actually.

 

[AW11inVa]

The dead block that I pulled out of my supra has a crank bolt that will not budge. I have hit it with impact wrench, breaker bar, breaker bar w/ pipe. Nothing. I am going to have to haul it to my dads workplace and have him hit it with one of thier 3/4" air guns.

 

[Kckazdude]

My IR 231 has broken lose every crank bolt I have ever thrown at it.

 

[Nalleywhacker]

So you're saying it took 600 ft/lbs? That's quite a bit, actually.

basically yeah thats what iam saying. i couldnt beleive it was so hard to get off!

 

[AW11inVa]

I went to Lowes and bought some flat bar and made 2 holes for the 12mm bolts and screwed it to the JDM crank pulley and I had made a bigger hole for my socket. I rested the far end on a piece of steel and with the engine secured to the skid I hung from the rafters on my car port stood on my big Snap On ratchet. I had to hop up and down on it but it finally broke free. YAY!!

 

[shaeff]

nice. (please note that the JDM pulleys are the same as USDM.)