Messages

46

Restoration / Re: Engine rebuilt

« on: January 01, 2023, 02:41:18 PM »

The bigger aftermarket pushrods will not fit without cylinder head machine work.  You would need to drill out the original obround pushrod holes to a larger diameter to accept the bigger diameter pushrod.  The rocker arm studs would all be pulled out then the tops of the bosses are cut down about 1/4" or so.  The rocker arm stud holes are then drilled and thread tapped for screw-in studs.  You would need to buy wider slot steel pushrod guide plates to match the new larger diameter pushrods as well.

You might be able to use a later design guided-tip rocker arm and avoid the extra rocker stud machine work and special guide plates but the pushrod holes still would need to be opened up. Those guided tip rocker arms are only for hydraulic cams because you cant get a feeler gauge in there to set the lash.

Bottom line - you probably want to stick to the smaller (stock) pushrod design  Keep it simple.

47

General Discussion / Re: Rear Bumper unacceptable fit with tall guards

« on: January 01, 2023, 02:23:58 PM »

The aftermarket tall guards look great but fit terrible.  No way to make them fit as delivered.  Are you going to grind and re-chrome them to make the fit better?  Not something I would do.

NOS is expensive, but they just bolt on.  Tough pill to swallow.

48

Maintenance / Re: Primary Accel squirter nozzle

« on: December 08, 2022, 12:37:32 PM »

I would bend the finger down with pliers.  No biggie.

49

Maintenance / Re: Primary Accel squirter nozzle

« on: December 07, 2022, 06:14:44 PM »

The finger that rides on the colored pump cam may be bent.  You should not need a washer at that location.


The linkage arm at the front (first picture) will have zero slack at the bottom where it touches the diaphram pump lever with the throttle at rest.  Adjust the spring bolt setting so that it just slightly compresses the diaphram lever under it. 


You need to have .015" ADDITIONAL TRAVEL AVAILABLE at wide open throttle. This means after you are done adjusting that spring bolt to "slightly tighter than zero"....you should be able to go WOT and not bottom out the diaphram.


If you went too tight on this setting before, you probably bent up the finger (second picture) that rides on the colored pump cam.  Might need to bend the finger back down to correct it if the spring adjustment at the front the is not long enough to reach the diaphram lever anymore.


If you change the RPM screw setting, you should recheck the spring bolt setting every time. 


If you get a bog, you probably have slack in the spring bolt setting.

50

Maintenance / Re: Primary Accel squirter nozzle

« on: December 06, 2022, 05:26:35 PM »

The accelerator pump linkage must not have any slack and it must not bottom out at wide open throttle.  Any slack at all will result in a bog.

If the adjustment is too tight, you may end up with slack when the linkage bottoms out after a wide open throttle stab...assuming the linkage bends and nothing breaks.  Not sure where you would add a washer?

If the RPM is too high, you might have a vacuum leak?  Secondary butterfly stop screw setting?

What does your distributor curve look like?  Timing setting?

51

Maintenance / Re: Primary Accel squirter nozzle

« on: December 05, 2022, 10:39:07 PM »

The transition slot opening can be closed up using the RPM screw so the slot looks like a square when looking at it from the bottom of the carb.  If yours is exposed too far it may look more like a rectangle. It does not pull as much gas at tip in if it is too far exposed. You can get the bog that way.

52

Maintenance / Re: Primary Accel squirter nozzle

« on: December 05, 2022, 05:33:50 PM »

The nozzle is stamped with the number on the side.  .025 shooter was stock. 

You might also want to play with the pump cam.  The quicker acting (red/pink?) pump cam worked well for me with a .025 shooter.

How did you set the primary throttle blade screw setting?  A lean tip-in can come from having too much of the transition slot exposed at idle.

How many turns out from lightly seated on the mixture screws? 

Do you get a lot of fumes smell?

53

Maintenance / Re: 69Z Starter not cranking

« on: November 29, 2022, 01:40:47 PM »

Make 100% sure the car is not in gear when you try to jump the starter. 

Make 100% sure the car is not in gear when you try to jump the starter.  ;~)

54

Decoding/Numbers / Re: 1969 Camaro Z28 with options

« on: November 18, 2022, 04:18:47 PM »

Stingr69, Yes it has the stainless trim and logo on the brake pedal. What you mean 330 Cars away from mine??

I also have a 10A build week.  330 VIN's away from yours.  It did not have the stainless trim on the brake pedal when I got the car in '79 but the power brake booster and master cylinder are original to the vehicle.  I have not added the trim but maybe I should.

55

Decoding/Numbers / Re: 1969 Camaro Z28 with options

« on: November 16, 2022, 02:37:33 PM »

Sweet project. 

Does it have the stainless steel "Disk Brake" trim on the brake pedal?  Mine did not have it (should have) and it is only 330 cars away from yours. 

56

General Discussion / Re: 69 Z28 oil pan, repop?

« on: November 03, 2022, 07:52:28 PM »

$275 to tack weld 2 strips of steel??? On top of the $200 for the pan???  I would take a swing at it with my MIG welder on a standard GM pan before paying that much.  Click the link below for a picture. 


Original? no, but functional, yes.


https://momcp.com/product/1969-72-camaro-z28-302-350-nos-gm-small-block-chevy-oil-pan/

57

General Discussion / Re: 69 Z28 oil pan, repop?

« on: October 27, 2022, 05:19:32 PM »

Bob Harris supposedly has the tooling to make the GM replacements.  Camaro Specialties in East Aurora NY.   You might look there.

58

General Discussion / Re: Tips on finding original owner and history?

« on: October 20, 2022, 12:54:05 PM »

I hired a private investigator to find the previous registered owner.  Previous owner was not happy to hear about the car because he had been forced to sell it back in the late '70's (parents).  He basically accused me of "rubbing it in his face".  He told me he knew "nothing about it's history or where he got it". -WTF!  I have kept it for about 45 years now.

Old wounds still smoldering hot there.  Not much I can do about it. 

Hope your search goes better than mine.

59

General Discussion / Re: 1969 Camaro Z/28

« on: October 19, 2022, 01:39:32 PM »

I suspect it has a dash panel replacement and the VIN tag is still attached to the original rusty dash panel.  The new panel is on top and the original panel (rusted at front) is being forced down by the new panel.  just guessing here.

60

General Discussion / Re: USPS Muscle Cars

« on: September 15, 2022, 03:31:08 PM »

They also have the black '69 Camaro Z/28 as a pin.  Some other cool Camaro stuff from the series to see online.