Re: [MV] Heli Coil
Buzz (buzzm@reno.rmci.net)
Fri, 26 Jun 1998 20:06:48 GMT
I have installed a heli coil into a head without removing the
head. This is the procedure that I used.
Get the piston on the cylinder that your going to work on a down
on it's intake stroke so that the intake valve is open. While
drilling I then used both ports on my shop vac. I used the
output port to keep positive pressure in the cylinder. When I
drilled I had an assistant hold the vacuum cleaner nozzle along
side the drill. The head was cast iron so the swarf comes off
like dust. I then tapped and installed the heli coil while
keeping the cylinder pressurized with the vacuum. I figured I
keep a got a lot of the swarf out and what I missed would
probably be vaporized.
The vehicle ran fine for many years until I finally sold it.
Good Luck,
Buzz
On Fri, 26 Jun 1998 17:33:35 +0100, you wrote:
>You need to do too much drilling and tapping to fit a helicoil
without taking the head off, and you really don't want that metal
swarf inside, >however if you were desperate you could get the
piston up to TDC, turn the whole engine upside down, and do it in
an upwards manner (no jokes please) plus cover your (low speed)
drill and tap with grease to trap as much swarf as possible. =20
>
>Gordon
>
Yesterday it worked, today it is not working, Windows is like that.
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