While browsing the past year as to what to do when removing Airpump
on my 95 LT1, I have gotten to understand that one needs to plug up
the 2 holes which became vacant upon removal of the pump. The
recommen. =to plug up 2 holes with 22mm drain/oil plugs, Most people
have problems securing them, but some have indicated "Napa Auto
Parts" stores. Mine (Vancouver, B.C.,Canada) do not have any, or any other
store, or even heard of them. For those have them and fit, please be
specific as to location ,parts #, tel#, of store. Is the 22mm the thread size?
or is it drain plug from a 22m transmission etc? Lotsa people have difficulty
with this......Please advise....tired of wasting my time for a few bolts.......

95 Z28 LT1 A4 ; shift kit, 3:73 Posi;52mm Holley Billet T/B, replaced/
upgrade all suspension, ignition, elec.items.,Relo. Iac, By-pass, etc.
replaced all brakes, and exhaust, scraped and epoxied, lowered 1", new
suspension, Spohn cross T/A , relocation brk.etc.etc.too much to mention.
Next: AFR LT1 Heads, Compcam 224-230 1.6 RR cam.Racetronix fuel
system, FAST adj. Reg.; Injectos (?), Cloyes timing kit;Powerbond Per-
formance Balancer, Headers (?), Computer Re-calibration (PCM for less)

 

How about an online shop in Canada that sells them for Can$2.49 each? Look for item #1016:

http://www.cgenterprises.com/drain_plugs_metric.htm

 

http://web.camaross.com/forums/showthread.php?t=324049

from my experience:

Napa part # 704-1048
it's made by balkamp. just tell them the part number, and they will order it.


or someone else posted:

I finnally went to my local speed shop and within a few minutes of talking to them, telling him what I had tried (it was just a bit bigger then the 1/2 plug I got from home depot to try), and him looking at the fittings.. He quickly pulled a -8 AN fitting off the wall and screwed the fitting from my exhaust into it, PERFECT FIT! I bought 2 -8 AN plugs for about $7 each and they worked perfectly...


as a last resort

take the old metal air injection tubes, and from where the fitting screws into the intake manifold cut the bolt and a couple of inches of tubing off. take the resulting piece and have someone bend the pipe over and put a good weld all over the top of it.

if you feel the urge to just take the tube out and fill the tube nut with JB weld, be warned that the jb weld won't last long. there is a cool flame that blows out of the air hole when the jb weld blows out, but burning a hole in your hood probably isn't cool.

 

Is there anything on the CAT that needs to be sealed? Or does the AIR pump only inject air through the diverter holes (I assume the latter)?

Also, this is unrelated, but what size are the washers needed for the ICM cooling mod / could these be found on the same website?

 

Just on the manifolds.
On my 95 I needed M18 and I have a single cat car.

 

I have Jet Hot LT's w/ emissions and I just blocked off the EGR and am thinking of a way to block off the AIR. Right now, all that I have come up with are two solutions: die the tube so I can put a bolt in there(no threads currently) or have someone weld it shut...

 

Thanks very much for the advice. I buy them Tuesday, as have Canada day
holidays. This pretty well solves my problem....Theo

 

I ofcourse have a 95 single cat. , but with all the responses, I have choices from
-8 AN plugs, Napa #1016, Napa 704-1048 made by balkamp, and M18. Since cost is
low I am sure one or all will fit.....Thanks very much......Theo

 

Hi: went online to Napa store , Napa Plug #704-1048 is not a match.!

 

Hi: Do you have part # for M18 plug. Although I did order first suggestion 22mm
plug from Napa, if it does not fit ?

 

m18 is a common enough size that you should be able to find it in their drain plug display.

i know down here in florida, even the ghetto stores had m18 drain plugs, but that was usually the maximum size in the display.

 

Looking for plugs for my MAC's too. Why are some people getting M18 drain plugs vs M22 drain plugs?
Are M18's for blocking off AIR on some of the 95 and newer exhaust manifolds? (Because thats what it looks like on my old manifolds, an M18 will fit). However, my Mac's look like an M22 is needed...
I'll probalby end up taking the AIR piece right to Napa or something and see if they can find one and its part #.

 

When my Pacesetters get here (ordered 4/6/06 and still have not shipped which is horse****) I plan on dumping the AIR and EGR. Will I need these plugs for my 96? I have the EGR block off plates already, but nothing for the AIR system.

 

isnt a -8 a 1/2 ......


-8/16 ?

 

-8AN is a 1/2" tubing diameter, but its not equivalent to a 1/2" NPT thread. "NPT" threads are tapered.

I've heard of people using -8AN plugs for the 93-94-some95 cars. I found the M22-1.5 to be a very good fit, and threw in a thin copper gasket to make sure it sealed. Someone got really deep into it and indicated it is some sort of tapered thread with a particular sealing surface angle at the very bottom.

We know the 93/94's all need the larger diameter. We know the 96/97's need the smaller diameter. There appears to be a mix on the 95 cars. I always assumed it had to do with the fact that the 95 CA emissions A4 cars had the dual-cat manifolds, and its the dual-cat manifolds that have the smaller diameter threads. But apparently, it got sort of mixed up (like a few other things on the 95s) and even some (or maybe all???) of the single-cat 95's have the smaller diameter heads.

Add to that the fact that not all headers match the specific year of the car, and not all headers even have female threads for the AIR, some have male threads and require some sort of adapter/coupling to connect the stock AIR plumbing.

The link to the online source of drain plugs is in my post near the top of the thread.