Messages

1

Maintenance / Re: Timing

« on: March 10, 2023, 12:06:50 PM »

Nice Installation and yes I have printed the article!

Best regards,

Hank

2

Maintenance / Re: Timing

« on: March 08, 2023, 10:56:23 PM »

No worries,

The info is very much appreciated! I'll check with Camaro Hi Performance in the morning.

Best regards,

Hank

3

Maintenance / Re: Timing

« on: March 06, 2023, 10:17:21 PM »

Thanks for the pic! Worth a thousand words as they say :-)
I'll check on the B28 canister, I would hope so.
They have received the distributor but have not started processing yet.
Best regards,
Hank

4

Maintenance / Timing

« on: March 06, 2023, 12:38:21 AM »

Hey you all,
What's the best way to re-plumb the vacuum advance canister to manifold vacuum from ported vacuum? I've got the distributor out and sent to Jerry for rework so it seems a good time to make the modification. Can I "Y" the pull off hose or do I need to find a fitting to take from the brake booster?

Thanks!
Hank

5

Maintenance / Re: Primary Accel squirter nozzle

« on: December 11, 2022, 09:41:19 PM »

Hi all,

Received the accel pump arm/spring assy from Holley this weekend. Compared the original arm to the new one and didn't see any difference. So I removed the spring/bolt components and installed on the existing arm. The engine responds much better now with much better response to inputs given as related to previous configuration. Thanks to Stingr69 for assisting!

best regards,

Hank

6

Maintenance / Re: Primary Accel squirter nozzle

« on: December 07, 2022, 08:35:57 PM »

Yes, I agree no washer should be needed. However, when trying to adjust for the .015 clearance the spring lost contact and was no longer loading the pump assy. I put the washer in to be able to adjust for the .015 and keep the bolt loaded. It's entirely possible the arm is bent and as stated a new assy is coming. This carb was a real mess when the car arrived basically leaking internally and externally. I'm finally down to this!
Not sure when the new arm assy is arriving but I'll report back once installed.

Thanks for all your help!

Hank

7

Maintenance / Re: Primary Accel squirter nozzle

« on: December 06, 2022, 07:27:31 PM »

Basically, the spring is compressed and trying to adjust the WOT pump arm clearance of .015 wasn't possible as the tension went away as the adjuster bolt was lengthened. The spring is shorter now than when it was produced. I put a washer between the spring and the pivot arm on the bolt to take up the clearance so I could get the car started after the rebuild/reseal. I guess I figured if it worked fine but it's completely possible the geometry and or tension is far enough off to be affecting the amount of fuel being pumped right off idle. I'm ordering a new arm/spring assy from Holley to replace the assy on the carb now.
RPM is 900 on the tack and about 850 on the timing light.
I do know the secondary butterflies are cracked open slightly and I didn't change the stop screw during the reseal process so not sure how much of a turn from closed the screw actually is.
The distributor is still factory plumbed to ported vacuum, initial at 10 degrees, 36 degrees at approx 3400 rpm, increasing from there as rpm increases. The engine pulls clean and hard, it's just that right off idle hesitation I'd really like to get rid of.
Having rethought about trying to see the slots from the top is just silliness. The only way to really get there would be by borescope and even then it would be a wild ass guess.
 

8

Maintenance / Re: Primary Accel squirter nozzle

« on: December 06, 2022, 12:10:31 PM »

I do believe I did look at that when the carb was off and noted the transition slots were close to or square. Since then most every idle speed adjustment has been to adjust for lower rpm. I'm going to try to look down from the top today (not sure this is possible) and try to see how much slot is exposed. Maybe I can then make a comparison to the photos in the Holley book.
I also remembered last night the spring on the accel pump linkage was partially collapsed thus requiring a washer to take up the play. If the spring is weak perhaps that is contributing to the bog.

Thanks for your help on this!

Hank     

9

Maintenance / Re: Primary Accel squirter nozzle

« on: December 05, 2022, 09:06:35 PM »

To be honest I set the idle according to rpm and adjusted the mixture screws as needed to achieve the best idle. This was performed following the carb reseal and before I understood the significance of the secondary blade adjustment screw. I do remember noticing the secondary blades were slightly cracked open and I didn't change that. I didn't think about a cam change...
I don't have any fumes after driving and parking in the garage, that's the reason the carb was pulled to begin with; the garage would stink of fuel for a few days after driving before.

Thanks and best regards,
 
Hank
   

10

Maintenance / Primary Accel squirter nozzle

« on: December 04, 2022, 11:28:32 PM »

Greeting you all,

Can you provide me the part number squirter nozzle assy. part number for the 4053? I'm assuming what is installed is the stock .025 (although when I rebuilt the carb I could find no identifying marks) The engine now that it's getting colder outside has a hesitation just when the throttle is applied. The stumble is momentary, and the engine responds fine after. What I've read is to go up two sizes but there are so many different styles to choose from I'd like to be sure before placing the order.

Thanks, and Happy Holidays!

Hank
   

11

Originality / Re: Hood Insulation Pad Interference

« on: October 23, 2022, 11:09:16 AM »

Thanks for the info. I'll go shopping!

Best regards,

Hank

12

Originality / Hood Insulation Pad Interference

« on: October 22, 2022, 12:06:29 PM »

Hello All,

I've discovered the cowl induction rubber seal has a larger diameter than the cut-out in the insulation pad. Are there different cut-out sizes depending on application? I have no problem replacing the one currently installed, I just want to make sure I order the correct one.

Thanks and Best Regards,

Hank

13

Originality / Re: Air Cleaner spacer?

« on: September 29, 2022, 11:09:46 AM »

Makes perfect sense now. Thank you for the clarification! I'll get the correct one ordered.

Hank

14

Originality / Air Cleaner spacer?

« on: September 29, 2022, 12:15:19 AM »

Hi you all,
I'm confused... I went to replace the cowl induction seal and the lip to secure it was pointed the wrong direction. So I grabbed the AIM and figured out the Camaro Central guys had it inside out. I flipped it around and also noticed in the diagram there is a spacer between the air cleaner base and the flat flange where the seal is mounted. Is this spacer supposed to be on this car?

Thanks and best regards,

Hank

15

General Discussion / Re: Timing

« on: June 12, 2022, 09:54:35 PM »

Hi all,
So the test drive was outstanding! The engine pulled hard from idle to 6k rpm. No evidence of knocking at high rpm and still very manageable at lower rpm's. Perhaps it's the 3.73 gearing in the rear making the car more easy to drive down low. I haven't put the timing light back on but I can tell the engine is up on the edge; runs hard but I seriously don't believe she'll take more timing at this point. I checked Corvette Central and if I could get their p/n I'll order one for future installation if needed.

Thanks,

Hank