Nemo
check the helicoil for temperature resistance. Going down inside a head so close to the combustion chamber is going to be pretty extreme heat.
Also, in order to get them to have the correct inside diameter for the plug to fit into, you know you have to drill out the existing hole and then tap it for the new helicoil to thread into right?
According to the instructions, I just lube the tap up and screw it into the hole all the way..$30 for that tap
[url=https://imgur.com/IaEu9hn][/url]
Where do you suppose all that metal from drilling and tapping is going to go????
Yup, but I will make sure that piston is topped out and i should be able to vacum out the lil that might go in, Its aluminum, lot softer then stell shavings LOL
I think you're pulling heads off no matter what to do this and if you are going to do that, I think you might want to check cost of replacement set, even used set that should likely be machined to be safe.
I wish I had the money for new heads, This car thing isn't working out right now. No one wants to buy anything here. I have my Buick down to $1500 and not one taker. Been 123 people view the ad but nada!!!
Expensive? Yep.... But think of the additional mileage your vehicle would likely get from doing it correctly...
PITA??? Yep... But you are getting pretty good at this mechanic stuff. You have more ambition than me...
This is all just MY OPINION and a suggestion for you.
It was free and I realize you did not ask for it.
HOW MUCH?? LOL thanks pal
SO, good luck to you with your project but I always go by the rule that if something is worth doing, it is worth doing correctly. The end and long term results are always far better than shortcuts..
And the prob with putting new heads on a engine with 220,000 miles is, it will blow the rings and the lower end out. I need a new truck HAHA
Realist - Everybody in America is soft, and hates conflict. The cure for this, both in politics and social life, is the same -- hardihood. Give them raw truth.