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QUestion: If you were to weld a nut onto the end of a long bolt and bottom out the bolt in a hole then torque on the nut, what part are you putting torque on? I say the bolt, not the nut right? So, are you REALLY applying 25 ft lb pressure on the nut holding the head? I think you are assuming that the rod is being torqued and would move? What if it didn't move? I guess I can't wrap my head around torquing on something you just welded in place. Help me out someone. If the rod had somewhere to go then I can see things as good, if not then you can apply much more and get the same results since nothing CAN move until you strip the housing holding the rod. I think you're close so it's a non-issue. Oh... I think your plug chops look pretty good. ;-T
You're torquing the unit, not the nut. Doesn't matter if there is a nut on top, or if you're using a long bolt (which this stud has become).Torquing the heads is just squeezing them between the case and the nut, or the head of a bolt.
Hey Jim, Granted it was a chop but the plug already had 115 miles of runtime. Average it out I'll stick with my assesment. Got 100LL Chuck?? ~; Paul :BEER:
Chuck face it, it's a damaged unit. Since it still runs I'll give you a hunnerd bones for it :D
The longest M8 I have is 210mm. I'll look around some though, gotta be some 225's somewhere...
Are you sure?? After all, it's a Lario, and all... ;D
Chuck. May I ask: How do you plan to limit the RPMs?
Took a little vid of mine for your listening pleasure over on the other thread. Funny how that camera catches that distinct Italian percussion section. ::)See how your Bubs compare on that bugger. Mine have reducers.
Are you sure?? After all, it's a Lario, and all... ;DWell I could use that engine for a drone project I have in mind........
Glad you got the stud sorted Chuck. Though I see the point about it bottoming out I suspect you would have felt that.My impression of the plug is that it looks fine, but I wouldn't want it to be any lighter which would give rise to suspicion for me. I think, were it me, I would try one size larger main jet, just as an experiment, and see how that looked. I wonder if Guzzi themselves could supply a red line figure?
About the plug , hmm , maybe just a skoshe lean ... maybe . Dusty
ChuckBB studs are def bottomed out from factory, torque is then applied nut to stud, obviously replacing nut and stud will be perfect but the way twin plug mod is done is to replace stud with high tensile caphead (10.9), You use slightly (-5mm) short stud and then torque bolt to case.If stud proves too dear (Guzzi content) just buy a caphead, cut thread off end if you have too.Or remove stud again, take off a couple of threads, retorque after marking current positition, bet it moves a bees dick, maybe a big bee !!
Now that Chuck got the plug chop guys aroused: I'm thinking I could go one more size jet up. Not the best pics. Any thoughts?
Is that from a plug chop, or is that just a plug you've run for a while? If the latter, how many miles of what kind of running?
Thanks for that, Martin. I've found some 8mm dia. 4130.. cheap. ;D Also some oil hardening tool steel (01) even cheaper. I'll bet it would be fine. Now I have to find a die, and I'll make a new stud. Or, I could try cutting metric threads with my little Mickey Mouse lathe. That would actually be a fun project.. and FREE. (Guzzi content) All this depends on if Mike can't find a long stud in his pile..Oh, and by the way, Martin.. since I have your attention..what is your gut feeling about the redline on this engine?