Calling all '69 experts - Please Look at this Carb

[Floyd B.]

The L36 (LM) I recently purchased has a correct service replacement Rochester Q-Jet - 7029207 (date code 3477) in very good condition. Obviously wrong part number and date code. A 40 - 60 point deduction. I have found good restoration shop that will fully recondition the core found in these pictures. I have seen his work and it is excellent. Everything is re-plated (not painted) with correct finish, calibrated and wet tested. Comes with a one year warranty.

My question is: Does this core look like a legit 7029215 from the 108th day of 1969?

I already know that the date code on the this unit does not match my very early production car - 10/4/68. What would you expect the deduction to be for a correct part number carb in "like new" condition with incorrect date code?

Thanx for the help

[Terry M.]

Re: Calling all '69 experts - Please Look at this Carb

The L36 (LM) I recently purchased has a correct service replacement Rochester Q-Jet - 7029207 (date code 3477) in very good condition. Obviously wrong part number and date code. A 40 - 60 point deduction. I have found good restoration shop that will fully recondition the core found in these pictures. I have seen his work and it is excellent. Everything is re-plated (not painted) with correct finish, calibrated and wet tested. Comes with a one year warranty.

My question is: Does this core look like a legit 7029215 from the 108th day of 1969?

I already know that the date code on the this unit does not match my very early production car - 10/4/68. What would you expect the deduction to be for a correct part number carb in "like new" condition with incorrect date code?

Thanx for the help

Floyd,
Do yourself a favor and download the 1968-1972 Mechanical judging score sheets from this site. I am pretty sure that there is not 40 or 60 points for the carburetor -- but then maybe I am wrong. I only judged 1968-1972 Mechanical at the Sacramento Regional. If you meant 40 to 60% you might be more accurate.

I don't recall if the carburetor date is on a separate line on the score sheets. Some dated items have a separate line for just the date and some don't. Check it out. If it is not on a separate line the date constitutes 20% of the available originality points. Remember (you do, don't you?) that we judge configuration, installation, completeness, and date. Each counts for 20% of the available originality points.

OH and BTW: with the possible exception of that plastic choke pull off the carb looks fine to me -- much as I can tell from Internet potos which always suck. I have my own opinion of plastic or metal choke pull offs, and I am not sure if I am in step with the rest of the world or not.

[Floyd B.]

Re: Calling all '69 experts - Please Look at this Carb

Terry,

I was using the score sheet when I made my prediction of a 40 - 60 point deduction. I was figuring a worse case scenario. For the carb there are 38 points for originality and 22 points for condition for a total of 60. If the judge got up on the wrong side of the bed, was served a bad breakfast and in a generally sour mood, he could say a total deduction for the wrong part number thereby whipping out the condition points too. Now that's not how I would do it but I'm not a very experienced judge. A harsh (but not masochistic) judge might say 90% deduct for the wrong part number and give me 15 or so of the condition points for a total of 20. Again, pretty much a worse case scenario.

That means, even in the worse case scenario a 100% numbers correct carb in "like new" condition is only going to gain me 40 to 60 points and probably more like 15. That would equate to 15 very expensive points.

-Floyd-

[Terry M.]

Re: Calling all '69 experts - Please Look at this Carb

Terry,

I was using the score sheet when I made my prediction of a 40 - 60 point deduction. I was figuring a worse case scenario. For the carb there are 38 points for originality and 22 points for condition for a total of 60. If the judge got up on the wrong side of the bed, was served a bad breakfast and in a generally sour mood, he could say a total deduction for the wrong part number thereby whipping out the condition points too. Now that's not how I would do it but I'm not a very experienced judge. A harsh (but not masochistic) judge might say 90% deduct for the wrong part number and give me 15 or so of the condition points for a total of 20. Again, pretty much a worse case scenario.

That means, even in the worse case scenario a 100% numbers correct carb in "like new" condition is only going to gain me 40 to 60 points and probably more like 15. That would equate to 15 very expensive points.

-Floyd-

I didn't realize there are that many points for the carb in spite of having been there last weekend. I can see you looking at the worst case, but I wouldn't think like that. Full deduct would in my mind be something like a non-Q-jet in its place. But I guess being prepared for the worst is not all bad.

[Jeffrey S.]

Re: Calling all '69 experts - Please Look at this Carb

I'll take a stab at this. If the total pont allocation is for 38 points , then the deduction for wrong date code would be 20% of 38 or 7.6 points (round up to 8 points for argument's sake). This assumes that everything else is correct. And if the part has been restored with the correct plating, etc. then there would be full credit for condition.
Jeff

[Floyd B.]

Re: Calling all '69 experts - Please Look at this Carb

I'll take a stab at this. If the total point allocation is for 38 points , then the deduction for wrong date code would be 20% of 38 or 7.6 points (round up to 8 points for argument's sake). This assumes that everything else is correct. And if the part has been restored with the correct plating, etc. then there would be full credit for condition.
Jeff

Thanx Terry,

What would you expect if I left the current Q-Jet in place? (wrong part number, wrong date)

Would it be something like 20% for wrong part number plus the automatic 20% deduction for wrong date for a total deduction of 16 points?

Thanx,

-Floyd-

[Terry M.]

Re: Calling all '69 experts - Please Look at this Carb

Thanx Terry,

What would you expect if I left the current Q-Jet in place? (wrong part number, wrong date)

Would it be something like 20% for wrong part number plus the automatic 20% deduction for wrong date for a total deduction of 16 points?

Thanx,

-Floyd-

Theory is that the part number is not that significant unless it results in a configuration issue. It might be a small configuration issue if the choke or throttle mechanism is/are different as a result of the part number difference -- or perhaps the bowl cover is deferent due to a lack of a bowl vent. Those are all minor differences and could result is a small configuration deduct perhaps at most a half of the 20% allocated to configuration. We teach that the number itself is not that significant, but some people are so taken with numbers that they just can't bring themselves to get to the meaning of the number -- internal passages and rod sizes, none of which are visible on the field.

We actually use issues like this in the Judging Retreat as learning experiences for participants. We teach the theory I stated above.

[David B.]

Re: Calling all '69 experts - Please Look at this Carb

Floyd,
The carb looks like a real 7029215 to me. I do have a question about the date shown on the vertical strut though. On '69 carbs of that date, I would expect it to appear on the plate, or no date to appear at all. I would carefully check the thickness of the rib that has the date stamp to see if it has been altered. Other than that possible fault, it appears genuine to me.
Dave B.

[David B.]

Re: Calling all '69 experts - Please Look at this Carb

I should add that I have a fairly extensive collection of photos of original 7029215 carbs. I have been collecting documentation on them for years - just a subject of personal interest.

Dave B.

[Mike F.]

Re: Calling all '69 experts - Please Look at this Carb

If it's a replacement could the date be the 347th day of 1977?

Can you post a picture of the numbers stamped in the circle on the back of the carb or include them in a post?

Here's a link to questions I had about my carb. https://www.forums.ncrs.org/showthre...+carb&uid=4652

[Floyd B.]

Re: Calling all '69 experts - Please Look at this Carb

The date code of "1089" would not be correct for my car which was assembled on or near 10/4/68. I don't have a picture of the carb at the angle shown in your picture.

Thanx

[Grant W.]

Re: Calling all '69 experts - Please Look at this Carb

The L36 (LM) I recently purchased has a correct service replacement Rochester Q-Jet - 7029207 (date code 3477) in very good condition. Obviously wrong part number and date code. A 40 - 60 point deduction. I have found good restoration shop that will fully recondition the core found in these pictures. I have seen his work and it is excellent. Everything is re-plated (not painted) with correct finish, calibrated and wet tested. Comes with a one year warranty.

My question is: Does this core look like a legit 7029215 from the 108th day of 1969?

I already know that the date code on the this unit does not match my very early production car - 10/4/68. What would you expect the deduction to be for a correct part number carb in "like new" condition with incorrect date code?

Thanx for the help

Hi Floyd

Here is a pic of a 215 carb and the date is stamped on the corner of the base plate. Late 68 or early 69 carbs has the stamping on the Base.
This carb is dated Sept 5th. Pretty darn close to your 10/4/68 assembled car.

Hope this helps.
Grant

[Floyd B.]

Re: Calling all '69 experts - Please Look at this Carb

Hope this helps.
Grant

It does. This would be more typical according to the TIM&JG. Thanx.

This carb is dated Sept 5th. Pretty darn close to your 10/4/68 assembled car.

In fact, it would be perfect for my car. Is it for sale?

[Joe L.]

Re: Calling all '69 experts - Please Look at this Carb

Floyd,
Do yourself a favor and download the 1968-1972 Mechanical judging score sheets from this site. I am pretty sure that there is not 40 or 60 points for the carburetor -- but then maybe I am wrong. I only judged 1968-1972 Mechanical at the Sacramento Regional. If you meant 40 to 60% you might be more accurate.

I don't recall if the carburetor date is on a separate line on the score sheets. Some dated items have a separate line for just the date and some don't. Check it out. If it is not on a separate line the date constitutes 20% of the available originality points. Remember (you do, don't you?) that we judge configuration, installation, completeness, and date. Each counts for 20% of the available originality points.

OH and BTW: with the possible exception of that plastic choke pull off the carb looks fine to me -- much as I can tell from Internet potos which always suck. I have my own opinion of plastic or metal choke pull offs, and I am not sure if I am in step with the rest of the world or not.

Terry-----


The original choke pull-off on the original carburetor of my 1969 was plastic and approximately the same color as the one on the carb pictured.