Q-jet Rebuild Started
Thread Starter
Instructor
Joined: Aug 2004
Posts: 142
Likes: 1
From: Minnesota
Q-jet Rebuild Started
I started tearing down the Rochester tonight. "Crusty" was an understatement:
But the PPG metal prep products that Lars suggested are phenomenal! I'm keeping my fingers crossed that I might get to the dyno this week!
-=Boston!=-
But the PPG metal prep products that Lars suggested are phenomenal! I'm keeping my fingers crossed that I might get to the dyno this week!
-=Boston!=-
Tech Contributor
Joined: Aug 1999
Posts: 14,356
Likes: 6,330
From: At my Bar drinking and wrenching in Lafayette Colorado
Looks great!
Is the DX-series cleaner eating the crud out of it for you?
The carb appears to have been commercially rebuilt at some point in its life. That being a possibility, be sure you check and verify the jetting components (jets & rods) against the carb number and make sure everything is the correct size & spec. If you don't have the specs for your carb, let me know and I'll get you the info.
Lars
Is the DX-series cleaner eating the crud out of it for you?
The carb appears to have been commercially rebuilt at some point in its life. That being a possibility, be sure you check and verify the jetting components (jets & rods) against the carb number and make sure everything is the correct size & spec. If you don't have the specs for your carb, let me know and I'll get you the info.
Lars
Thread Starter
Instructor
Joined: Aug 2004
Posts: 142
Likes: 1
From: Minnesota
Well, I finished up over the weekend, but don't have pics yet (left the camera up at the shop). Below is a pic of some of the smaller parts after having been cleaned with the metal cleaner (phosphoric acid) and soaked in aluminum conditioner. The conditioner appears to put a grey coating on steel, and put a kind of dusty yellow coating on the aluminum parts of the carb.
-=Boston!=-
-=Boston!=-
Drifting
Joined: Sep 2004
Posts: 1,532
Likes: 4
From: Fairview Heights Illinois, near Saint Louis MO, STL C3 Shark
Cool! I rebuilt my Qjet a while back on my truck, it wasn't nearly as dirty, but it ran alot better afterwards. I rebuilt the whole thing basically because my accelerator pump was shot. Started a whole lot better afterwards.
Had your Qjet been sitting for a while? Id never seen one so dirty before.
Had your Qjet been sitting for a while? Id never seen one so dirty before.
Burning Brakes
Joined: Dec 2004
Posts: 918
Likes: 5
From: Gainesville FL
Really nice work Boston. Where are the PPG metal prep products available? This job is on my short list after my wiring problems are fixed. I was planning on buying the Q-jet rebuilding kit and the Q-jet book someone mentioned in an earlier post. Any other pointers?
Instructor
Joined: Jun 2003
Posts: 139
Likes: 0
From: Salt Lake City, UT
Q-jet Rebuild Started
Just rebuilt my '74 q-jet last weekend. Took me 1 day to tear down and clean, and 1 day to reassemble and mount. It made a world of differance, both starting and running... you'll be glad you did it.
Mark
Mark
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Joined: Jul 2004
Posts: 400
Likes: 1
From: California
hey, what size are the 2 nuts that hook up to the fuel filter? i got a 7/8 flare wrench and dont know if thats big enough to get it loose, this goes along with the post i did yesterday, i havent gotten the filter off yet cuz its pourin' here in Sacramento. 
