urgent!! Jug bolts! - Suzuki Z400 Forum : Z400 Forums
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post #1 of 3 (permalink) Old 11-30-2019, 11:30 PM Thread Starter
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urgent!! Jug bolts!

So I was finishing my build again.... and one of the bolts that holds the head to the jug felt like wasn’t tightening, (7ft lbs) and I didn’t feel the click in my torque wrench.... the bolt snapped off inside the jug...

Is this a HUGE problem? Or is it okay to run it like it is, they’re are the 4 head bolts that hold the head and jug to the motor so will this keep it together and not leak any oil? I have the one in and it’s fine but the second snapped
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post #2 of 3 (permalink) Old 12-01-2019, 11:00 PM
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I would drill and EZout the broken bolt to satisfy my OCD ways, but 3 out of 4 ainít bad. The head bolts have much more torque and hold it all together anyway, so I donít see an issue running it like that. Opinions may vary, though.

'05 Z
94mm bbk, +4 stroker, Hot Cams, Vertex piston, FMF Power Bomb header and Power Core can, KW black diamond valves/dual springs, FCR39, K&N, Elka long-travel LT fronts and rear, Houser +3, +3/4 LT A-arms, American Star pro xs chromoly tie rods, Dyna non-programable, Tusk +3 axle.
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post #3 of 3 (permalink) Old 12-01-2019, 11:17 PM Thread Starter
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So I spent $20 bucks on left handed drill bits and easy outs and so on... and I touched it with the left threaded drill bit and it started backing out, grabbed it with my fingers... got the $1.65 bolt on the way, just taking precautions...

I’m almost certain it would be just fine without it but just for cheap insurance I went ahead and got it.... I got too much in this motor build to let some $2 bolt ruin my 2,000$+ motor... appreciate the help!!

Yea the 4 main bolts that secure the head and jug to the cases should be enough... especially torqued to 35 or 38 ft lbs... well I think anyways
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