Removing coolant nipple from head
#1
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Im swapping to a BP4W head on my boosted Protege. I need to swap out the coolant nipple on the back of the head for the heater core fitting in a FWD orientation.
Any Ideas on getting this out without bitching up the fitting since I need to swap them? Should I just let the machine shop deal with it?
![](https://www.miataturbo.net/attachments/engine-performance-56/79783-removing-coolant-nipple-head-getattachment.jpg?dateline=1371574651)
What I need
Any Ideas on getting this out without bitching up the fitting since I need to swap them? Should I just let the machine shop deal with it?
![](https://www.miataturbo.net/attachments/engine-performance-56/79783-removing-coolant-nipple-head-getattachment.jpg?dateline=1371574651)
What I need
![](https://www.miataturbo.net/attachments/engine-performance-56/79784-removing-coolant-nipple-head-bp05_protege_head.jpg?dateline=1371574651)
#2
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So, I picked up a super cheap protege head to port and polish and use on my miata. I tried everything I could think of to get that stupid fitting out and never did manage to succeed. I heated the whole head and chilled that fitting, tried penetrating lube, pliers, hammering etc. etc. So, take that for what it's worth, but you might want to start researching a different option.
#3
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The only time I have seen someone attempt to remove that fitting "cleanly," he wound up having to drill out the remains and then tap the head for a thread-repair sleeve.
#4
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![Default](https://www.miataturbo.net/images/icons/icon1.gif)
So, I picked up a super cheap protege head to port and polish and use on my miata. I tried everything I could think of to get that stupid fitting out and never did manage to succeed. I heated the whole head and chilled that fitting, tried penetrating lube, pliers, hammering etc. etc. So, take that for what it's worth, but you might want to start researching a different option.
Thanks for the replies gentlemen
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