93 secondary air inj pump

[John G.]

Re: 93 secondary air inj pump

The air intake on this just goes straight up past the front support where a "snorkle" end is located, no attachment to the air intake. The intake is about 2 1/2" the oulet is about 1 /1/2" both on the impeller end of pump.
Napa online has a good picture, just can't get one

[Terry M.]

Re: 93 secondary air inj pump

I am pretty sure mine looks different than this one:

http://www.napaonline.com/Search/Det...59999+3999999#

I will look anyway, but it is beginning to look like I will strike out.

[Joe L.]

Re: 93 secondary air inj pump

Let me see what I can find over the weekend. A lot of things are crowding in now, so no promises -- but I will get to it.

I note John H and Don G talking about the foam filter on the inlet. I know the pumps for the B-body (which are the ones I have) use an inlet duct to the vehicle air filter. However, that duct is separate from the pump. Whether that offers you a clue at to whether what I have would be useful to you or not, I don't know.

Terry------


Here are photos of the GM #10090521 used for 92-93 LT1 and 90-95 LT5 Corvettes and the GM #12554580 used for Impala SS and other B bodies. The 10090521 is on the left and the 12554580 is on the right.

[Joe L.]

Re: 93 secondary air inj pump

The air intake on this just goes straight up past the front support where a "snorkle" end is located, no attachment to the air intake. The intake is about 2 1/2" the oulet is about 1 /1/2" both on the impeller end of pump.
Napa online has a good picture, just can't get one

John-----


I've found out that A-! Cardone no longer offers these pumps on an exchange or core-deposit basis. However, they do offer R&R service for a pump you send them. A-1 Cardone does very high quality rebuilding.

[Terry M.]

Re: 93 secondary air inj pump

You have nailed it Joe -- as usual. The one on the right liooks like what I remember. I had hope I might be able to help, but it looks like I will strike out.

[Joe L.]

Re: 93 secondary air inj pump

Well that would explain the lack of notification to you. Yes I believe all the B-bodies (probably D-body [Fleetwood] also) are the same AIR pump. I will still do some digging and maybe I can post a picture. Would you think Y and F cars would be the same AIR pump, or did they really screw the pooch on the C4?

Terry------

No Camaro used the same pump as 92-93 Corvette and 90-95 LT5. 93 Camaro used the same electric pump as 94-96 Corvette LT1 and LT4 as well as 97-99 Corvette LS1. This pump, GM #24505066, was the same, basic configuration as the B-body pump.

1994-97 Camaro LT1 and 98-99 Camaro LS1 used electric pumps also configured like the B-body pump but of different part numbers.

00-02 LS1 Camaro used electric pump GM #12568241 and 00-03 Corvette used electric pump GM #12568382. Both of these pumps are of similar configuration, an example of which is pictured below.

[Joe L.]

Re: 93 secondary air inj pump

I believe you are correct.

While the 1992-93 Tech Manual has NO verbage specific to the LT-1 Air Pump, the Tech Manual text for the LT-5 notes the foam filter. The Tech Manual parts lists for the LT-1 and LT-5 Air Pumps are different (10090521/10092521), however, the part list shows the same part number (14104698) for the Secondary Air Injection Pump Duct (with foam filter).

The 1994-96 LT-1 and 1996 LT-4 Air Pump intake is routed to the air filter housing. The 1994-96 Tech Manual for the LT-5 continues to describe the foam filter on the intake duct.

David-----

If a pump of GM #10092521 ever existed it was never available in SERVICE. The GM #10090521 is the pump specified in SERVICE for all 1992-93 Corvette LT1 and 1990-95 LT5. This pump uses the foam filter.

The 1994-96 Corvette LT1 and LT4 AIR pump was of a different configuration than the 10090521 and was similar to the B-body and Camaro pumps of the period.

[Joe L.]

Re: 93 secondary air inj pump

Joe

I think the AIR pump used on 92-93 LT-1 and 90-95 LT-5 were unique in that they were the only application that used the foam filter. Is that correct?

Don------


I believe that is correct.

[Terry M.]

[John G.]

Re: 93 secondary air inj pump

Thanks for all your help guys. cardone's site sent me to an online vendor that sells their rebuilds. reasonably priced compared to parts house prices that list it but CAN"T get the part. As always thanks for the help, drive your vette and GOD BLESS AMERICA
John G

[Joe L.]

Re: 93 secondary air inj pump

Thanks for all your help guys. cardone's site sent me to an online vendor that sells their rebuilds. reasonably priced compared to parts house prices that list it but CAN"T get the part. As always thanks for the help, drive your vette and GOD BLESS AMERICA
John G

John-------


Send an e-mail to A-1 Cardone or call them and see if they can rebuild your pump. I think they can.

[David H.]

Re: 93 secondary air inj pump

David-----

If a pump of GM #10092521 ever existed it was never available in SERVICE. The GM #10090521 is the pump specified in SERVICE for all 1992-93 Corvette LT1 and 1990-95 LT5. This pump uses the foam filter.

The 1994-96 Corvette LT1 and LT4 AIR pump was of a different configuration than the 10090521 and was similar to the B-body and Camaro pumps of the period.

Joe,

Thanks, the 10092521 part number is from page 179 of the 1992-93 Tech Manual description for the LT-5. I've corrected my copy of the TM.