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Join Date: Apr 2010
Posts: 69
CIS injector hole plugs, carbed engine

What is the best method to plug the injector holes in CIS heads ? (not MFI)
The engine is carbed.
Anyone make a suitable remedy ?
TIA
Rory

Old 05-03-2018, 05:21 PM
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There are insulators to encompass the notch
I would contact PMO for a set.
Bruce
Old 05-03-2018, 06:13 PM
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Quote:
Originally Posted by Flat6pac View Post
There are insulators to encompass the notch
I would contact PMO for a set.
Bruce
That's a good idea Bruce I'll call them.
Thank You
You've brought something to my attention.
The heads I'm working with have a hole that extends from the top surface
of the head directly into the intake port aimed at the valve.
It is a ~14mm hole, not a notch.
The hole is smooth, not threaded.
Old 05-03-2018, 06:39 PM
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On the 2.4 CIS heads, you can run a tap into the hole and then plug them just like you do with the MFI heads.
__________________
Tom Butler
1973 RSR Clone
1970 911E
914-6 GT Recreation in Process
Old 05-04-2018, 03:25 AM
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Tom hit it, the 73 CIS heads had a pressed in aluminum sleeve where the MFI injectors went.
once removed, there is no threads.
That was an only year application.
Bruce

Old 05-04-2018, 04:47 AM
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