JDM Crankshaft pulley 7MGE

jerry12345

Jerry
Authorized Seller
Joined
Jan 24, 2007
Messages
30
Likes
0
Location
Elk Grove CA
#1
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

Administrator
Staff member
Administrator
Authorized Seller
Joined
Dec 31, 1969
Messages
12,377
Likes
0
Location
Richmond, BC, Canada
#2
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

Kurt is FTMFW x2!!!!
Staff member
Super Moderator
Authorized Seller
Joined
Mar 30, 2005
Messages
10,581
Likes
0
Location
Around
#3
the rattle gun has never let me down. ever.
 
Joined
Nov 2, 2007
Messages
5
Likes
0
Location
San Diego
#7
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

Where are my pants!
Authorized Seller
Joined
Feb 27, 2006
Messages
91
Likes
0
Location
St. Louis Missouri
#8
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

Supramania Contributor
Authorized Seller
Contributor
Joined
Jan 8, 2007
Messages
1,536
Likes
0
Location
Baytown, Texas
#9
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

New Member
Authorized Seller
Joined
Nov 15, 2007
Messages
125
Likes
0
Location
Broadway Va
#10
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.
 

Nalleywhacker

<i>Formerly gnarkill87</i>
Authorized Seller
Contributor
Joined
Oct 2, 2006
Messages
643
Likes
0
Location
chattanooga,TN
#12
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

Kurt is FTMFW x2!!!!
Staff member
Super Moderator
Authorized Seller
Joined
Mar 30, 2005
Messages
10,581
Likes
0
Location
Around
#13
^ then you have weak impact guns. if you broke it with a breaker bar and 2ft cheater bar, you have weak impact guns. :)
 

BlindRonin

Where are my pants!
Authorized Seller
Joined
Feb 27, 2006
Messages
91
Likes
0
Location
St. Louis Missouri
#14
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.
 

AW11inVa

New Member
Authorized Seller
Joined
Nov 15, 2007
Messages
125
Likes
0
Location
Broadway Va
#16
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.
 

AW11inVa

New Member
Authorized Seller
Joined
Nov 15, 2007
Messages
125
Likes
0
Location
Broadway Va
#19
Success!!! YAY!!

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

Kurt is FTMFW x2!!!!
Staff member
Super Moderator
Authorized Seller
Joined
Mar 30, 2005
Messages
10,581
Likes
0
Location
Around
#20
nice. :) (please note that the JDM pulleys are the same as USDM.;))
 

AW11inVa

New Member
Authorized Seller
Joined
Nov 15, 2007
Messages
125
Likes
0
Location
Broadway Va
#21
Cool I was not sure. Can you use the crank pulley bolt over again? I was planning putting in new front main seal, timing belt, head gasket cam seals blah blah blah...
 

Dr Chill

4 hungry Supras
Authorized Seller
Contributor
Joined
Nov 27, 2007
Messages
329
Likes
0
Location
Mississippi
#23
I was in the junkyard pulling a balancer off a 7m & did not have the proper tools .. I had a breaker bar & a 5 foot pry bar .. you may think this is crazy ,But it worked I put the breaker bar on the balancer /pulley bolt and whacked the shit out of the breaker bar ... I figurd since it was'nt my car it did'nt hurt any to try ...the funny thing is that it actually worked
Ghetto tech in effect