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I dont have a torque wrench, how tight should I tighten the water impeller nut? As tight as I can?
noooo....use a little locktight on the threads.its only wrist tight.do not use the full lever value of the handle of the wrench.go too tight,youl be back with some more questions
 

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Make sure the impeller is correctly seated on the shaft splines and snug it by hand with a socket. As the impeller rotates the prevalent stress of rotation keeps it tight.



As others have warned above, do not over-tighten.
 

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Your question took my breath away. As others have said, do not overtighten. You could break off the end of the camshaft and then you'll be in a world of hurt. If that happens, you have to get a new motor. I've successfully used high temp silicone sealer on the copper washer. Some of us on this forum anneal the copper washer and some of us get new ones. Auto parts stores usually have them.
 

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Snap. Yep that was to tight.



The second question is how much work does it take to fix a snapped off set of threads. It has been done and you don't want to know.



Also Harbor freight has basic 1/4 drive torque wrenches. Some may argue that they aren't calibrated right but 0-10 pounds is just fine.
 

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Snap. Yep that was to tight.



The second question is how much work does it take to fix a snapped off set of threads. It has been done and you don't want to know.



Also Harbor freight has basic 1/4 drive torque wrenches. Some may argue that they aren't calibrated right but 0-10 pounds is just fine.


I think those smaller ones are fine Don.It's the larger 1/2" + ones that get vague at the low settings and those Bar type ones are just not up to it and also so cumbersome in small places.
 

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Oh i'm not going to disagree Shep. I like both of my harbor freight torque wrenches. Obviously I really only need the 1/4 drive on these engines but some have went out of their way to tell me ....................... and that anyone using them can ...................... (words edited to protect the children)



On a budget they work fine.
 

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I just torqued some head bolts on a Jeep with the 1/2 inch Harbor freight torque wrench. Then I went to use it on the valve cover gasket. 140 pounds to 8. Watched my buddy snap the bolt off. So I grabbed the wrench and did the same. Totally not accurate less than ? pounds.
 

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On the valve cover gaskets I basically use a screwdriver with a 10mm socket on the end

thats all

How many times have we heard of folk shearing them off?

theres no nipping up allowed on them, they run in until they stop because of the collar. any further tightening

is pointless.

Sheps tip of using the knuckle of a socket on the impellor nut sounds about right too

its only a 6mm thread.

Easy now !
 

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I just torqued some head bolts on a Jeep with the 1/2 inch Harbor freight torque wrench. Then I went to use it on the valve cover gasket. 140 pounds to 8. Watched my buddy snap the bolt off. So I grabbed the wrench and did the same. Totally not accurate less than ? pounds.


Where is there a 1/2' drive torque wrench with a range from 8-140 ftlbs?
That sounds like an outrageous spec claim. Maybe 20-140, but I would never trust a 1/2" torque wrench at that low force. Use a 1/4 or max 3/8" wrench for those small torques.

I will often clamp a bolt in my vice and test the feel of the wrench at the bench first, those clicks can be hard to discern at low torques.

My belief is that torque wrenches are probably more accurate in their mid ranges and less so at either extreme.
 

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It takes a"feel" for the bolt being tightened, and a little common sense. When you are tightening the bolt, nut, whatever and it starts "feeling" DIFFERENT?....Thats either the threads stripping, or the bolt shearing. ALL'S that is NEEDED, is when you feel the fastener seat?.........I would think, an 1/8 to 1/4 turn would be sufficient , in most cases.

IMHO.......ESPECIALLY, on those smaller threads. If you're worried about the vibration backing them off?........A little lock-tite does good. If you think that you can tighten these smaller threads ONE TIME and NEVER have to check 'em again?....In more cases than not, you're going to twist off or strip it!!



Hope this helps.
 

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It takes a"feel" for the bolt being tightened, and a little common sense.
ill follow the Bear again[no advert this time.lol]

i never use a torque wrench for any values lower than 3o lb.i suppose having grey hair gives you the feel.


i simply dont trust them.
 

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A "FEEL" is a firm CONSTANT pressure........NOT A JERK!!!!!.......SSSSSNAP!!!!!!!!!!!!.....



That is for TIGHTENING........For Loosening?.....On THESE old bikes? (and I KNOW what you're thinking.......lol), tighten those Mothers with the SAME torque you LOOSENED 'em with?.......SSSSSSSSSSSNAP!!!!!!!!!...........AGAIN!!!!!!



This is getting me "thirsty".........rofl
 
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