Cliff's Quadrajet Parts and Rebuild Kits

Quadrajet Problem Solving => Quadrajet Parts and Numbers => Topic started by: MarshallSF on March 12, 2014, 01:26:39 PM

Title: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: MarshallSF on March 12, 2014, 01:26:39 PM

I started work on my 1988 Airstream 290 LE yesterday to get it ready for CA smog testing. When I pulled off my air filter housing there was an Edelbrock 1406 instead of a Quadrajet (ugh).

I'm now trying to track down a replacement Rochester Quadrajet - anyone know the correct OEM model for a 1988 CA-emissions P30?

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: Ethan1 on March 12, 2014, 01:50:10 PM

 Welcome to CHP!

 I don't think that vehicle came with a Quadrajet. I believe it came with a TBI unit. Not 100% sure.

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: MarshallSF on March 12, 2014, 02:25:21 PM

I think those started around 90-91 on these.

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: Ethan1 on March 12, 2014, 07:41:07 PM

Quote from: MarshallSF on March 12, 2014, 02:25:21 PM

I think those started around 90-91 on these.

 I stand corrected. 17088040 is the correct part number I believe. I will have to look around a little more just to be 100% sure.

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: MarshallSF on March 13, 2014, 11:03:43 AM

Thanks Ethan - appreciate your help on this.  Please let me know what you find out.

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: Ethan1 on March 13, 2014, 01:34:15 PM

Quote from: MarshallSF on March 13, 2014, 11:03:43 AM

Thanks Ethan - appreciate your help on this.  Please let me know what you find out.

 Wrong carb, sorry. These are correct, 17085004 M/T and 17085212 A/T. I am pretty sure.

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: MarshallSF on March 13, 2014, 03:16:30 PM

Looks like 17085212 is listed in the CA ARB executive order for these vehicles (EO A-6-418).  Thank you very much for your help Ethan.   :)

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: Cliff Ruggles on March 21, 2014, 05:34:34 AM

Going by memory the 17085003/004 carbs were used on the Motor Home applications in and after 1985 till they went to TBI's. 

Those carburetors have special calibrations, and are not the same castings as the truck Q-jets used in the same period.  I have a few in the core pile here, but avoid them for anything other than a motor home application......Cliff

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: MarshallSF on March 21, 2014, 01:15:53 PM

Hi Cliff - thanks for the information. I am seeing a 17085004 listed alongside the 17085212 in the ARB EO for my vehicle. Any idea which casting would be preferable? Today I managed to find a brand new, in-the-box 17085212 for a good price. Do you think this would be a good way to go? Would I need to update anything before using?

Thanks for your help - much appreciated.

http://www.arb.ca.gov/msprog/onroad/cert/mdehdehdv/1988/gm_hdoe2_a0060416_4d8-5d7-7d4-7d0-6d0_6d0.pdf (http://www.arb.ca.gov/msprog/onroad/cert/mdehdehdv/1988/gm_hdoe2_a0060416_4d8-5d7-7d4-7d0-6d0_6d0.pdf)

Title: Re: Advice on correct carb for 1988 P30 Motorhome (CA emissions)
Post by: MarshallSF on March 25, 2014, 07:42:38 PM

BTW - Cliff I'd love to hire you to rebuild one a proper casting for me if that's possible. However I've heard you're booked up to a year out.