Q-jet Mounting

[Joseph M.]

On my 70 454 carb, I know the front is mounted using two bolts, but am unsure if the rear uses bolts or studs. When purchased it was mounted with studs in the rear, but have seen sets of four bolts being sold to mount the carb. Please help clarify. Tx.

[Joe L.]

Re: Q-jet Mounting

On my 70 454 carb, I know the front is mounted using two bolts, but am unsure if the rear uses bolts or studs. When purchased it was mounted with studs in the rear, but have seen sets of four bolts being sold to mount the carb. Please help clarify. Tx.

Joseph-----


Studs with nuts. Period.

[Joseph M.]

Re: Q-jet Mounting

Tx Joe, I'll install tomorrow.

[Terry M.]

Re: Q-jet Mounting

And I often see orange paint on the top of the studs -- indicating to me the studs were installed when the engine was painted.

[Joseph M.]

Re: Q-jet Mounting

Terry

Would you happen to have a pic or illustration of the mask that was used to cover the carb during this process so the paint only hit the studs. I'm sure the carb was installed prior to engine paint.

You guys are too much. Comedians as well historians.

[Joe L.]

Re: Q-jet Mounting

Terry

Would you happen to have a pic or illustration of the mask that was used to cover the carb during this process so the paint only hit the studs. I'm sure the carb was installed prior to engine paint.

You guys are too much. Comedians as well historians.

Joseph-----


The carburetor was installed at St. Louis and, thus, was not mounted to the engine when it was painted. The studs were part of the engine assembly and installed at Flint or Tonawanda. They were probably covered with little cardboard tubes (or some other mask integral with the device that covered the carb flange) so that paint did not cover the threads when the engine was painted but there was nothing to prevent the top of the studs from receiving paint.

I've never figured out why the studs were installed at the engine plant. However, it may be that they were needed for attachment of the natural gas ducting used to run the engine during hot test.

[Terry M.]

Re: Q-jet Mounting

I have not seen the mask used, but I would offer the same conjecture as Joe L.

[Tory S.]

Re: Q-jet Mounting

Is this true for later C-3s. I have an all original '75 which now has studs on the rear, but the AIM on pg 272 clearly shows rear bolts #9419032.

My carb was rebuilt once in the 80's, then replaced in the 90's. (And yes I kept the original carb which has now been restored and will be installed as I finish my motor restoration.) Point is, studs could have replaced original bolts on my car during either of the two services.

Thoughts for '75?

Tory
'75 Conv.
Original owner

[Joseph M.]

Re: Q-jet Mounting

Terry

I thought you were being playfully sarcastic in your 11:49 post today, based on you and Joe L. going back and forth re my distributor hold down finish question. I really didn't believe the carb was installed prior to engine paint.

[Joe L.]

Re: Q-jet Mounting

Is this true for later C-3s. I have an all original '75 which now has studs on the rear, but the AIM on pg 272 clearly shows rear bolts #9419032.

My carb was rebuilt once in the 80's, then replaced in the 90's. (And yes I kept the original carb which has now been restored and will be installed as I finish my motor restoration.) Point is, studs could have replaced original bolts on my car during either of the two services.

Thoughts for '75?

Tory
'75 Conv.
Original owner

Tory----

Bolts for the rear positions were first used for the 1972 model year, although some 1972's might still have used studs. Studs were used for 1968-71. 1973+ should use bolts.

[Terry M.]

Re: Q-jet Mounting

Being unable to determine emotions behind the post is one of the limits of the Internet. The use of emoticons can help lessen that limitation, but it is a nuisance to insert them and their number is limited on this board. Unfortunately the lack of understanding the emotions behind a post can sometimes lead to unnecessarily heated debate, especially when the writers are unknown to each other. That is not the case with Joe and I.

Good friends can have an honest difference of opinion and still remain friends AND respect each others opinions. Contrary to what you may read here, there is a whole lot more to life than Corvettes -- and this board is only a small part of the Corvette hobby.

[Joe L.]

Re: Q-jet Mounting

Being unable to determine emotions behind the post is one of the limits of the Internet. The use of emoticons can help lessen that limitation, but it is a nuisance to insert them and their number is limited on this board. Unfortunately the lack of understanding the emotions behind a post can sometimes lead to unnecessarily heated debate, especially when the writers are unknown to each other. That is not the case with Joe and I.

Good friends can have an honest difference of opinion and still remain friends AND respect each others opinions. Contrary to what you may read here, there is a whole lot more to life than Corvettes -- and this board is only a small part of the Corvette hobby.

Terry-----


I could not agree more.

[Joseph M.]

Re: Q-jet Mounting

Terry/Joe

At no time did I believe there was a problem over the posts. It is obvious that the two of you are friends and greatly respect each others opinions. In fact, while it's hard to gauge emotions through this venue, it was very clear to me of this respect. I'm looking foreward to this continued sharing of knowledge.