A stuck cylinder head

[Dirtyowlnumber4]

Having trouble getting the head off of a 1300 engine. It seems to be stuck on a corroded stud on one corner, next to the water pump. 

 

Tried taking all the studs off, except the one that is stuck. Been spraying PB blaster and tri-flow in between the head and the block for a few weeks and working on it every afternoon. Also tried putting some rope down cylinder one and turning it, hanging it from an engine lift by the head for a few days, and a whole lot of hammering. The heads lifting maybe half an inch off the back of the engine but stuck firm in the front.

[datzenmike]

J13? Eleven studs in total? correct?

 

 You have 10 out so the head is only on by the remaining stud?

 

Try swinging the back of the head clockwise as seen from above. It should be turning around the remaining stud or if tightly gripping it it should unscrew the stud and lift off with the head.

[Dirtyowlnumber4]

Excellent idea I'll give that a bash

[RLJ]

Have had success on corroded and seized powerhead studs on outboard motors using an air chisel to impact on the stud. Have tension on the head and use the air chisel on the stud. Have a nut on the stud to not mushroom it over creating another problem. 

The impact of the air chisel breaks the bond of the corroded stud in the head. If you have access to a rivet gun works better for controlling the hit.
 

[RLJ]

Forgot to mention, don’t use a chisel bit in the air gun. You want a flat surface on the bit to hit the stud. Cut of the chisel part of a bit off with a cutoff wheel to create a flat surface on the bit. 

[Dirtyowlnumber4]

Thanks for the help fellas I spun the whole head around 24 times and it threaded right off.

 

 

I will try an air chisel to get the stud out of the head at some point, I've heard of people taking parts of their cylinder heads off with super corroded studs though lol.

[bananahamuck]

do you have any way at all to heat the remaining stud??  

 

Get piece of thin aluminum sheet/plate ( or steel or even plywood if you're brave) and drill hole in it , slid down stud and heat the shit out of it,, aluminum just keeps flame from hitting engine .

 after heating dump shit ton of your favorite spray lubers,, do it a few times and if still tight let it cool, wet down with DubyahDee type situations ,,  let sit, start again tomorrow,, it will come out eventually.  

 

If you have welder and acetylene torch turn that sum butch bright red let slightly cool a few times ,, pull plate ,, weld large ass nut ,, wiggle it back and forth  like a lunch time pole dancer at the Viva el twato wango . 

   Boom its out

 

 

 

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Edited June 1 by bananahamuck