harmonic balancer nut

[Cutlass]

I've decided to have my BJ8 balancer rebuilt. Is the large nut right hand or left hand thread? I've put about 150lbs of torque both ways, to no effect. I can go farther, with pipe estensions, but want to do so only in the right direction. Thanks.

 

[AlanT]

It is a right hand thread nut. I had to put over 600 lbs to a princess 4 litre balancer nut a while back. Too many times you find the 3000 nuts too loose.

Alan T

 

[Cutlass]

I tried a four foot iron pipe on the end of my breaker bar. The bar flexed so much I was afraid it would break. Still didn't budge.

 

[AlanT]

Yep...Been there. My Snap-On 3/4 drive impact would not remove the nut on the Princess engine. (for those that do not know , the Princess engine is a 100-4 engine with two more cylinders) I had to load the engine and take it to a truck repair shop that had a 1000 ft lb 1" impact. FWIW , I have always been able to remove a 3000 crank nut with the 3/4 impact tool.

Alan T

 

[Cutlass]

I tried the impact wrench first. But mine is only a 1/2 inch. 125 psi at the compressor didn't make a dent. I think I'll ask the guy who installed it just how tight he make it.

 

[AlanT]

A 1/2 impact usually will not move it. I looked for a recommended tightening torque in the Bentley manual and did not find it.

Alan T

 

[Cutlass]

Now I seem to remember breaking the crank nut on my MGB. I had the engine on the floor, used a six foot long pipe on the wrench, and when it broke, it sounded like a gunshot.

 

[Keoke]

--Hi Cutlass, I have had no trouble in removing those nuts usng an impact wrench with at least 350 Ft/Lbs of torque.--Fwiw---Keoke

 

[stinky60]

make sure your impact gun is well oiled, I used 1/2 no problem, you can't use a cheap gun on this one. Bob

 

[Randy Forbes]

I pulled mine loose by hand, though I may have employed one of my seldom used tools...

4:1 torque multiplyer!

 

[Cutlass]

Now that's a tool! Tim Taylor would be proud. Arr..Arr..Arr....