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Post by larry001964 on May 9, 2012 4:42:55 GMT -5
I didnt use one but should have. For my own piece of mind.
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Post by moore716 on May 9, 2012 5:41:18 GMT -5
most likely when it came down the line they used air tools that were preset to the desired torque specs. I would use one myself. I watched my buddy cry as he cracked an ear on the head of his big bore 250 MX bike. It was awesome to. An imported Bud Racing cylinder head. The quench are was a separate peice and you could order diferent ported inserts for it.
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Post by aeroxbud on May 9, 2012 6:36:48 GMT -5
I always use one, just for my own sanity lol. have a good quality one in 1/4" and a cheaper 1/2" model. Anything i use the 1/2" one on will be quite sturdy so not as important as the small stuff, if its slightly too tight.
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Post by 2strokd on May 9, 2012 14:54:06 GMT -5
I've never used 1 on all my scooter motor builds but I've been wrenching for 20+ yrs. Someday I'll get me a 1/4" torque wrench just to check my mental torque wrench. Im with you brother :cheers: . I have an old craftsman 1/2 inch one but dont use it on scoots. Ide like to see how close i am? |
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Post by 2strokd on May 9, 2012 14:54:44 GMT -5
i skipped it, i though that 1/2" torque wrench was a bit difficult to use on 10mm bolts. besides, you think the child that assembled the engine the first time used one? Also a very good point :lol2: |
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Post by 2strokd on May 9, 2012 14:55:38 GMT -5
I'm surprised how many don't use one. I even torque the nuts to spec when I am just mocking up with a degree wheel to be sure durations are right on. I'd use a computer program to figure out my porting if I wanted to guess at what's happening in the engine.  Doesn't help that I've snapped GY6 studs twice so far in different engines at less than the proper torque spec. If I was going by hand and did that I'd feel like I must have over-torqued them and wouldn't realize a lot of Chinese 4T studs are kinda junk.  I think my obsession with proper procedure came from blowing head gaskets 10 times in a row on my Mustang. It wasn't at all related to install process or surface trueness or any of that, just a freak issue, but damn it made me not wanna blow another head gasket ever. That said, I still get leaks on my scooter's head gaskets doing all this extra work, so I suppose I'm the fool for spending the time on something that isn't really working. lol I guess at least I fail consistently.  And last but not least, great point :rockon: |
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on May 9, 2012 15:00:24 GMT -5
i skipped it, i though that 1/2" torque wrench was a bit difficult to use on 10mm bolts. besides, you think the child that assembled the engine the first time used one? Also a very good point  I use a 10mm 3/8s drive socket on a 1/2 to 3/8 adapter.....works good for me  |
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Post by 90GTVert on May 9, 2012 16:08:37 GMT -5
I have 1/2", 3/8", and 1/4" tq wrenches. The 1/2 and 3/8 are Snap-On and get sent back for calibration from time to time. The 1/4" I got from Harbor Freight and have never used. It arrived in the box with the head in pieces and I had to assemble it. It's supposed to come ready to use. At that point I realized I'd feel just as safe using my 1/2" impact gun on my head bolts. lol
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jcoahran
Scoot Enthusiast
89 zuma ii
Posts: 347
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Post by jcoahran on May 9, 2012 16:18:09 GMT -5
thanks for all the advice guys! im going to start pulling the engine tonight! but when i get the big bore in i still won't be able to test it until scrappydogscooters sends me the rest of my parts -.-
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Post by 2strokd on May 10, 2012 7:30:40 GMT -5
I gotta put a new HG on this L/C engine... IT will be torqued to spec  |
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