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Post Info TOPIC: 1969 Pontiac 2+2 427/390 Convertible Barn find - But this one a 4-speed


Poncho Master!

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RE: 1969 Pontiac 2+2 427/390 Convertible Barn find - But this one a 4-speed


cdnpont wrote:

Looks great, man you don't mess around.

Is the body away being done?


Not yet.  Next step is the engine, it needs to be rebuilt and then I can install it back into the chassis and it'll be be pretty much ready to send off.  I'm still "negotiating terms" with the body shop trying to get as much of the project on a fixed bid as possible.  I'm realistic, I know metal work is going to be time and materials, but I hope to get a bid on the "post-metal" stuff.

 



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Poncho Master!

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Turns out that the "Disc Brake" pedals for four speed cars are not reproduced and are very rare! So, I did what I could to restore mine. Given the odometer reads 60K in this car I'm tempted, from looking at the brake pedal, to assume that's original. The clutch pedal has more wear.

I removed and polished up the "DISC BRAKES" medallion and the black-oxide-blasted the rubber pedal, then cleaned all the little grooves with a small screwdriver.  I also rotated it 180 degrees to put the old wear in a different spot.  With a clutch pedal stainless trim piece it should look pretty nice though not quite new!

1_31 PM 2_25_2018 - Bitmap.png



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Poncho Master!

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Here's the quick before and after on the parking brake. The finishes where they left things natural are hard to replicate, but the Eastwood "Detail Gray" comes close.

 9_09 AM 2_26_2018 - Bitmap (2).png



-- Edited by davepl on Monday 26th of February 2018 12:11:52 PM

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A Poncho Legend!

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Nice job Dave.

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I agree.  Your refurbishing job makes the parts look new!



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How are you getting the rust off? Soaking it in Evapo-Rust? I'd think sandblasting would just get a bunch of grit in the moving parts.

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Poncho Master!

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Pretty much all abrasive blasting. Glass in some cases, black oxide in the rough metal cases. I've had reasonable luck masking and just being careful not to direct the spray of abrasive into moving parts. Then blow it out with compressed air and it's usually OK.

That might be true for parking brakes but not for power steering pumps, for example. Some stuff you just can't blast...

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Poncho Master!

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Clutch pedal and sensor.

Clutch Pedal Before and After.jpg



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Canadian Poncho Superstar!

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Looks good. Ahh, it also looks like the pin that operates the neutral safety switch is in fact on the clutch pedal.

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Poncho Master!

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Shouldn't it be?

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Canadian Poncho Superstar!

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Yes, it's correct. In the thread where you were talking about the neutral safety switch being bypassed and needed a new one, I thought you needed a new pin as well. I bought a reproduction pin, but can't remember where I got it. Glad you had the original pin.

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Poncho Master!

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AH, no, I i see what you mean. They'd made a little loop-back conectector and plugged it into the harness so the switch was removed from the circuit. Unless it's sketchy at high current or something it works with my multimeter, so not sure why it was bypassed.


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Poncho Master!

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Here are my pedals all restored and happy, at least as best I could do with the used parts I had since the brake pedal isn't reproduced and is super rare to find!  Then I wrapped them in baggies and they'll stay that way for a while!

IMG_6194.JPG



-- Edited by davepl on Friday 2nd of March 2018 10:28:50 AM

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A Poncho Legend!

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You'll want to wear slippers when you drive now!

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Guru

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nice job

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Poncho Master!

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Just a couple of random status pics from stuff I've been working on...
IMG_6121.JPG

IMG_6172.JPG



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Canadian Poncho Superstar!

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You do nice work Dave. What finish did you use on the box? 



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Poncho Master!

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That is Eastwood's "Detail Gray" or "Spray Gray" I believe. They have one that's supposed to look like cast metal and the other stamped, but I forget which I used!

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Poncho Master!

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Got my block and crank back from the machine shop. So lucky that the damage that occurred from sitting happened to be in the cylinder that was already sleeved... only a 12.5% chance, but that's how it happened!

If you recall I bought this project with the drivetrain "already rebuilt".  But the cylinder needed a redo, and they found a LOT of things wrong.  Good thing we didn't just fire it up!

They went 40 over and new pistons. They were going to reuse the rods but two wrist pins fell out when they were disassembling (something about the last guys sanded the rod end?). So new rods. Crank .010 under I think. Big fat sleeve where that little thin walled sleeve was before.  The crank was already wearing in the beaings weird on the old rebuild so they cut the caps and line-honed the block as well.

Waiting on the heads, will start reassembly on Thursday I believe, then on to the dyno, then paint, then into the car so it can leave for metalwork!

IMG_6348.JPG



-- Edited by davepl on Wednesday 28th of March 2018 11:00:07 AM

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Poncho Master!

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Busy week, engine went to the dyno and I started parting out the Catalina I bought for its rear quarters, wheel trim, speedo, and a few fasteners, etc.

Here's a pic of the Catalina after it gave up it's back left quarter... now onto the right. Broke 5 sawzall blades learning!

I was trying to save the steering wheel but it has turned "gooey" which apparently can't be fixed.  I tried soaking it overnight in Oxyclean even and that didn't touch it.

This might be the first car I've seen with NO rocker switches.  No defog, as is so common in Canada, and no reverb or antenna or top.  So even though it's not perfect, I'll save that trim.


IMG_6569.JPG



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Poncho Master!

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Here's Larry Webb, Q-Jet and Rochester FI guru with over 60 years at GM, tuning my carb. He actually had my friend that runs the shop turning down Q-jet rods on the lathe, which I didn't even know was possible!  That's not me in the background though, just FYI.

Made 402hp and 498 lb-ft of torque (at 2900). Valve floats at 5200, which surprised me, but the cam card even says "Valve Float: 5200". I'll post a dyno chart later when I get the raw numbers.

I did note that the increase in displacement is 3% from the overbore, and 103% of 390hp is 402 exactly!
IMG_6570.PNG



-- Edited by davepl on Saturday 14th of April 2018 09:38:11 AM



-- Edited by davepl on Saturday 14th of April 2018 09:38:37 AM

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Canadian Poncho Superstar!

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Good solid numbers Dave, and you know it's right. 498 will pick her up nicely. Must feel good to hear it run.

Do you plan on doing a Tonawanda type paint job, as in all orange with everything pretty much in place at the time you spray?

If you have a 6" angle grinder, try using it with a good quality zip disc to cut the panels. Using it in concert with the sawsall is the way to go.



-- Edited by cdnpont on Saturday 14th of April 2018 10:29:23 AM

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Poncho Master!

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I have a 4" zip disc, I can give that a shot in a few places. That standard 3" cutoff disc is slow going, most of it has been sawzall!

Here's how I painted my last one, which is how I'll do this one I expect. Bolts in place and so on, as you say, but likely a little more detailed than Tonawanda. No overspray

IMGP0333.JPG

IMGP0375.JPG



-- Edited by davepl on Saturday 14th of April 2018 12:08:21 PM

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A Poncho Legend!

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Looking good. That guy tuning your carb looks like Carl Stevenson!

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Canadian Poncho Superstar!

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I can't believe you only broke 5 sawzall blades. I would have easily gone through a 10 pack.

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