Re-torque or not??

Tom N MS

Well-known Member
Do you ever retorque a manifold--replaced EM gasket on 200 6 cyl--Been driven 3-400 miles-
does it need re-torqued or do I leave it alone...?? Tks
 
Not an expert on the subject but I re-torque mine on my tractors.
On the N's the torque spec is what? 27 ft/lbs?
I don't see what it would hurt to check if you don't over torque them.
 
I was taught to re-torque head gaskets and any other gaskets that were affixed to an object that got hot during normal use, but AFTER the engine had cooled down completely. The explanation was that the heating cycle (expansion of the metal parts) squeezed the gasket a bit and when it cooled, there was the possibility of unwanted "space" or sponginess (only a .001 or .002") between the metal parts. And it seemed that most of the bolts, when loosened before being re-torqued, were able to turn a quarter to a half a turn tighter than before. Made sense to me, so I've been doing that for a long time with good results. I've seen folks report here to re-torque when hot, and I don't follow that or understand the logic, but they may have good results, too; perhaps it doesn't make a difference if you do or don't. I'm sure many here have far more experiences than me.
 

It never hurts on those type of manifolds. On my 390 I hit them every time I service it mainly because I don't ever want to have to replace the zaust manifold gaskets again :twisted:
 
Adding to this, do you back off the nut (loosen it) and then retorque or just set the wrench and pull it tighter til it clicks? I've always just done the second.
 
(quoted from post at 18:37:20 10/08/16) Adding to this, do you back off the nut (loosen it) and then retorque or just set the wrench and pull it tighter til it clicks? I've always just done the second.

I just grab a wrench are ratchet and thigh'N them.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top