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Bill,
I used the flat surface on the front cover just below the OMP as a
place for my dipstick. No reason why you couldn't drill & tap for a
turbo drain. Of course, you'd have to remove the front cover (not
such a big deal, really).
Mark S.
On 6/26/12, Tracy <rwstracy@gmail.com> wrote:
Option 1. - No, for the reasons you said.
2. - OK, but more trouble than it's worth.
3. - Would work.
4. - Works fine .
Best is to drill & tap foot of rear rotor housing on spark plug side.
Tracy
Sent from my iPad
On Jun 26, 2012, at 1:59 PM, William Mason <instructorbill@msn.com> wrote:
Reading on an rx7 forum I've learned that there are multiple options for
the turbo oil drain on an NA engine.
I can weld a bung into the oil pan
I can change the front cover to the Turbo 2 one
I can drill and tap the NA cover to accept a -10AN fitting
I can make a oil metering pump block-off plate that will accept a -10AN
fitting
My concerns are that that option one would put the drain oil below the
oil level and add restriction. Option 2 would upset an already rebuilt
engine... don't mess with perfection. Option 3 of the available areas
to drill and below the OMP pad and further down on the cover... the
slanted section, which one would be better?
Option 4 seems best but it seems a little high and it too may cause some
restriction.
Has anybody used the OMP block-off-plate drain idea with any success?
Should I just put my big-boy pants on and take the front cover off and
either switch the front cover or drill/tap or tig a bung to the lower
section of the front cover well below the OMP pad?
Advice sought.
Regards,
Bill Mason
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