Make your own free website on Tripod.com

John O's Fiat Insanity

124 Air Injection Plugs

Home
Fiat Panoramas
Cars Lost
The Crushed
Little Cars
124 Sway Bar Fix
124 Tach Fix
124 Ignition Conversion
124 Emissions Plugs
1986 Bertone X1/9 - Black
1986 Bertone X1/9 - 2-Tone
1976 Fiat 128 Wagon
1976 Lancia Scorpion
DC Fiats Logo T-Shirt
DCFIATS.ORG Stickers
DC Fiats August '05 Road Run
DC Fiats Jan '06 Pizza Meet
DC Fiats Catoctin Run '07
April Fools
Contact, Links, and Boilerplate

124 Emissions Air Injection Plugs

It’s very common to remove horsepower robbing emission air pumps from 124 twin cam motors and the corrisponding unsightly air injection rail down the center of the head. Once the rail is gone, there are four open holes in the center of the head that need to be plugged which will otherwise allow exhaust gasses to escape. 

CLICK FOR LARGER IMAGE

I tried some the loose Fiat fasteners I had laying around and found that wheel bolts fit perfectly in the air injection holes in the head. I drove over the our local Home Despot to try to make a match with "more attractive" Allen headed hardware and found they only had 3 of the 4 plugs I'd need. I said, screw it - literally. I went back home, cut four lug bolts off with a recip saw to about 1/2 inch long section, smoothed the cut ends down on the bench grinder, then with the recip saw again, cut a slot across the top of each cut face - viola, emissions plugs! I screwed 'em in with a large screw driver and a little loctite on the threads. I’ve actually received compliments for the more retro look of my plugs.
 
 

Updated 16 Oct 2009