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Old 09-30-2007, 05:56 PM   #1
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Default taping oil pan

Anybody know what size drill and tap I need for taping the oil pan for old corky bell ihi kit?
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Old 09-30-2007, 07:03 PM   #2
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Depends on the fitting size, but most of those fittings are 1/2" NPT. The drill is either 45/64" or 23/32".
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Old 09-30-2007, 07:13 PM   #3
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Should I swap the oil pan over? I would think taping would be easier.
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Old 09-30-2007, 07:24 PM   #4
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Also where can I something to tap the thread? NAPA? Where can I get mineral sprints to flush out the shavings inside the oil pan?

Last edited by supra441979; 09-30-2007 at 08:04 PM.
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Old 09-30-2007, 08:34 PM   #5
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Quote:
Originally Posted by Savington View Post
Depends on the fitting size, but most of those fittings are 1/2" NPT. The drill is either 45/64" or 23/32".
The return fitting looks to be 1inch
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Old 09-30-2007, 08:37 PM   #6
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its a 1/2" npt fitting, i'd stake my life on it.
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Old 09-30-2007, 08:47 PM   #7
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So the drill should be 45/64 or 23/32 right? Also should I tap it or swap the oil pan?
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Old 09-30-2007, 09:03 PM   #8
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go to flyin miata's site and download their install instructions, it has the best writeup for the tap.

swapping the pans will be 1000x more work.
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Old 09-30-2007, 09:19 PM   #9
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So the fm fitting is same as the old cortech ihi turbo oil return fitting?
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Old 09-30-2007, 11:15 PM   #10
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if it's a 1/2" npt, i can loan you my tap and bit. i just did it last weekend. worked like a charm. shoot me a PM if you're interested, since it'll save ya a few bucks.
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Old 09-30-2007, 11:31 PM   #11
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Quote:
Originally Posted by devin mac View Post
if it's a 1/2" npt, i can loan you my tap and bit. i just did it last weekend. worked like a charm. shoot me a PM if you're interested, since it'll save ya a few bucks.
Thanks, but I want to get the car on the road asap.
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Old 09-30-2007, 11:56 PM   #12
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no prob. if it is indeed a 1/2NPT, i used a 22/32" bit and it tapped like butter.
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Old 10-01-2007, 12:41 AM   #13
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Quote:
Originally Posted by neogenesis2004 View Post
its a 1/2" npt fitting, i'd stake my life on it.
I'm gonna hold you to this!!!!! :gay:
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Old 10-01-2007, 02:34 PM   #14
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NAPA did not have a temp. Fuel pressure gauge to hook up to fuel rail in stock and cheapest one is $50. Also the fitting is 3/8 npt.

Last edited by supra441979; 10-01-2007 at 04:16 PM.
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Old 10-01-2007, 08:42 PM   #15
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Well the drill I have did not fit the 1/2 drill bit, so I just swap the oil pan.
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Old 10-01-2007, 09:49 PM   #16
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drill bit should not be 1/2"!!!!!
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Old 10-01-2007, 09:55 PM   #17
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Have fun swapping oil pans and ignoring everything we've said. If you seriously drilled a half-inch hole in your oil pan, and you don't know where to buy paint thinner, mabye you shouldn't be attempting this.
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Old 10-01-2007, 10:13 PM   #18
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Quote:
Originally Posted by Savington View Post
Have fun swapping oil pans and ignoring everything we've said. If you seriously drilled a half-inch hole in your oil pan, and you don't know where to buy paint thinner, mabye you shouldn't be attempting this.
C'mon man why the harsh word!!!!

Last edited by supra441979; 10-01-2007 at 10:37 PM.
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Old 10-01-2007, 10:37 PM   #19
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Quote:
Originally Posted by Braineack View Post
drill bit should not be 1/2"!!!!!
That's what the guy at NAPA gave me to use.
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Old 10-01-2007, 10:39 PM   #20
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You do NOT use a 1/2" drill bit to drill for a 1/2" NPT thread. The guy at NAPA is, as parts counter guys typically are, an idiot.
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