Broken headbolt/stud

Farmer Foster · Sep 18, 2016

Tractor: 49 8n, front mount.

Problem: Dying 6v battery finally got me to install the 12v conversion
kit I have. The front right head bolt (stud?) busted trying to install
the alternator bracket.

Situation: I'm in the field, not my shop (which is 1 mile away). I
have about a day's tractor work that I need to do in the next 7-10
days. I don't have time for lengthy projects.

Any suggestions?

Tim PloughNman Daley RIP · Sep 18, 2016

What is wrong with the stud? Did it break off the casting? If stud is broken off in the block, a machine shop may be in your future. Also, a 'dying battery' is no reason to switch over to 12 volts. You have another issue that is causing that. Probably would have been better to trouble shoot the root cause of that first -bad wiring; bad generator; bad voltage regulator or cutout; -all things that would the first place to start looking.

Tim *PloughNman* Daley(MI)

Farmer Foster · Sep 18, 2016

Stud broke off a couple inches down I think? When removing it coolant started spewing and I cranked it back on for now.

My generator is pretty much shot. I ordered the conversion in the Spring when the generator first went, then soldered the generator up enough for it to work all summer apparently. I also had a leaky ignition and something was wrong with my resistor (both replaced just now).

DGinVT · Sep 18, 2016

Rather than trying to make the repairs in the field, can you drive it back on its own power? I know its down time to remove the stud but you might try driving it on battery power to finish the field work. The stud can usually be removed by welding a nut on the remaining part of the stud or else drilling it out.

Farmer Foster · Sep 18, 2016

I guess my question should be:

can I just slip the mounting bracket onto the head and crank down the broken stud and deal with it later? If there's enough thread to keep the coolant contained am I likely to cause other issues in the short term?

mhb@ufe · Sep 18, 2016

What makes you believe it is broke? If anti freeze was coming out that would indicate the stud unscrewed from the block.

Mark

Bob Harvey · Sep 18, 2016

" I cranked it down for now"- seems like you should be able to get it 'back to the shop' if you are not confronted with a geyser - and even if you are, go slow, stop, add water, repeat. The fact that the bolt/stud went into threads and held is a BIG factor. If that is the case, drain the coolant, determine the condition of the threads and adjust/cut a new bolt/stud (slightly shorter than required) and have at 'er. If your gen. still works, and it starts , why bother spending $$ on a 12v conversion? HTH

ZANE · Sep 18, 2016

When the stud came out with the nut it simply opened a hole into the water jacket. Ain't nothing broke.

Zane

tractorguy2 · Sep 19, 2016

Sounds to me like the stud unscrewed out of the block instead of the nut unscrewing from the stud. If the twisted off you would not be able to screw it back in. I would put the bracket on and tighten it down.

Kenny g · Sep 19, 2016

Did the stud look like a fresh brake or just rusted off ? If water came out itdid not break off. I had one that looked that way when I pulled it out

Broken headbolt/stud

Farmer Foster

New User

Tim PloughNman Daley RIP

Well-known Member

Farmer Foster

New User

DGinVT

Member

Farmer Foster

New User

mhb@ufe

Well-known Member

Bob Harvey

Well-known Member

ZANE

Well-known Member

tractorguy2

Well-known Member

Kenny g

Member

Similar threads