Author Topic: Carb specs for jets rods hangers?  (Read 5195 times)

Offline hansi

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Carb specs for jets rods hangers?
« on: December 03, 2013, 02:34:41 PM »
Hi guys!
New to the forum but not to Q-jets, Cliff and his excellent parts!
Now to my question;
Is there a spec? chart, covering all q-jet numbers, and what # jets, rods and hanger they had originally?
I have an Oldsmobile 7042251 unit at my bench, and I am trying to verify what was in there from the factory.

Help!!

Sincerely

Hans
Northern Norway

Offline Ethan1

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Re: Carb specs for jets rods hangers?
« Reply #1 on: December 03, 2013, 04:35:54 PM »
Hi guys!
New to the forum but not to Q-jets, Cliff and his excellent parts!
Now to my question;
Is there a spec? chart, covering all q-jet numbers, and what # jets, rods and hanger they had originally?
I have an Oldsmobile 7042251 unit at my bench, and I am trying to verify what was in there from the factory.

Help!!

Sincerely

Hans
Northern Norway

 Welcome to CHP!

 Stock jet and rods for carb 7042251 was .069" Primary Jets, Primary Metering Rods 50B, Secondary Hanger K, and Secondary Metering Rods CH.
Ethan

1972 Chevelle

(oo______oo)

Offline hansi

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Re: Carb specs for jets rods hangers?
« Reply #2 on: December 03, 2013, 09:02:13 PM »
Thanx for the fast answer!!
Is these specs available on the net, or do You have some book?
Also, do You know what engines they were used on? This guy has a 350...? Maybe on 350 with manual trans?


Hansi

Offline Ethan1

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Re: Carb specs for jets rods hangers?
« Reply #3 on: December 04, 2013, 11:24:37 AM »
Thanx for the fast answer!!
Is these specs available on the net, or do You have some book?
Also, do You know what engines they were used on? This guy has a 350...? Maybe on 350 with manual trans?


Hansi

 I actually have several manuals. Not one in particular. As for your second question, are you referring to carb number 7042251? Or another carb? 7042251 came off a '72 Olds 455cid manual trans. ;)
Ethan

1972 Chevelle

(oo______oo)

Offline hansi

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Re: Carb specs for jets rods hangers?
« Reply #4 on: December 05, 2013, 10:10:35 AM »
Thanks again Ethan!
I wish these manuals were available on the net, but I am real happy there is guys like you around to provide valuable info!!
Some more questions;

The 251 is for 455 manual you say.
Do you have the carb numbers, and jet specs, for 350 man. and auto, and 455 auto too? 72 Olds..

Thanks

Hansi


Offline Ethan1

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Re: Carb specs for jets rods hangers?
« Reply #5 on: December 09, 2013, 06:34:26 PM »
Thanks again Ethan!
I wish these manuals were available on the net, but I am real happy there is guys like you around to provide valuable info!!
Some more questions;

The 251 is for 455 manual you say.
Do you have the carb numbers, and jet specs, for 350 man. and auto, and 455 auto too? 72 Olds..

Thanks



Hansi

 Sorry, been out of town for awhile.

 For the Olds 350 M/T & A/T, I believe they came with 2-bbls only. Not 100% sure. But, they would be part numbers 7042155 for M/T and 7042156 for A/T. Stock jets for 7042155 are .054" and .051" for the 7042156.

 As for the 455 A/T carb, it is part number 7042252. Stocks specs were Primary Jets .069", Primary Metering Rods 50B, Secondary Hanger K and Secondary Metering Rods CH. Looks to be the same as the 7042251 as you can see.
Ethan

1972 Chevelle

(oo______oo)

Offline hansi

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Re: Carb specs for jets rods hangers?
« Reply #6 on: December 10, 2013, 02:18:41 PM »
Ethan,
Thanks a million!
I am fairly sure there was a 4-bbl "high output" 350 available. I think I saw it at some Olds site, if memory serves me.
Also there is a posting at an Olds forum site stating that 250 carb was for 350, and 251 was for 455.....?

Anyway, these carbs(155 and 156) are 2-bbl, right?

Offline hansi

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Re: Carb specs for jets rods hangers?
« Reply #7 on: December 10, 2013, 02:23:50 PM »
Seems that engine code L-32 was 350 2-bbl, 160hp and there was a L-34 350 4-bbl with 180 hp.

Hansi

Offline Ethan1

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Re: Carb specs for jets rods hangers?
« Reply #8 on: December 10, 2013, 03:19:34 PM »
Ethan,
Thanks a million!
I am fairly sure there was a 4-bbl "high output" 350 available. I think I saw it at some Olds site, if memory serves me.
Also there is a posting at an Olds forum site stating that 250 carb was for 350, and 251 was for 455.....?

Anyway, these carbs(155 and 156) are 2-bbl, right?

 Missed carb 7042250. That carb could have been used on either M/T or A/T. Yes, the 250 was for the 350 and the 251 was for the 455. Also, the 155 and 156 are both stock for the 350. Maybe for the L32. The L34 might have used the 250 carb.

 Carb 7042250 stock specs were .069" Primary Jets, Primary Metering Rods 50B, Secondary Hanger K, and Secondary Metering Rods CG.
Ethan

1972 Chevelle

(oo______oo)

Offline hansi

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Re: Carb specs for jets rods hangers?
« Reply #9 on: December 10, 2013, 03:44:35 PM »
Great info!

Now I got all I need to ask Cliff for helping me out! :-)

Thanks again!

I will definitely check out this forum regularly, as I do work on more q-jets...!

Thanks a BUNCH to you Ethan for providing this invaluable info!

Hansi
'47 Pontiac Street Rod (with EFI)
'67 Tempest Custom Conv. (with 2-bbl)

Offline Ethan1

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Re: Carb specs for jets rods hangers?
« Reply #10 on: December 11, 2013, 05:29:38 AM »
Great info!

Now I got all I need to ask Cliff for helping me out! :-)

Thanks again!

I will definitely check out this forum regularly, as I do work on more q-jets...!

Thanks a BUNCH to you Ethan for providing this invaluable info!

Hansi
'47 Pontiac Street Rod (with EFI)
'67 Tempest Custom Conv. (with 2-bbl)

 Glad I could help. :D
Ethan

1972 Chevelle

(oo______oo)