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Engine Compartment Resto...Assembly

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Old Dec 27, 2011 | 04:46 PM
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Default Engine Compartment Resto...Assembly

Thought those that are checking in to see what's new for 2012 might be interest in following the assembly of my 1978 L48 engine restoration...limited to cosmetics. The objective is to prep for the eventually for some future owner to campaign it for NCRS Top Flight. I've spent the past few months dis-assembling, clean and paint. Know I won't need to solicit comments...I'm confidant they'll flow objectively but with affection....

So, here are a couple of pics of the block freshly painted from underneath.

Engine Left Side
Engine right side
Topside

I used an airbrush and Eastwood's engine GM Corporate Blue paint. Offered some nice control over the spray but still ended up using a brush to get the back of the block and avoid overspray on the tranny.
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Old Dec 27, 2011 | 05:09 PM
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Yesterday and today began to install shields which are a pain and a lot of them. Got the starter installed, plug wires, looms, V shield, tranny lines.

Engine assembly passenger side

Also shot a photo of the frame front crossmember topside that I did along with a-arms. Will install new dust shields while also polishing the front shock washers. Finish on frame is Rust-O-leum flat...suggested by several CF regulars

Front crossmember

Last edited by hunt4cleanair; Dec 27, 2011 at 05:25 PM.
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Old Dec 27, 2011 | 05:48 PM
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Hi h4ca,
Very interesting pictures and nice attention to detail.
I ALWAYS enjoy seeing what people are doing.
Regards,
Alan

PS: During the Chevy orange period the jagged part of the timing tab OFTEN had a piece of tape on it.... so no paint; did that continue to the Corporate blue era? Thinking of Top Flight!
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Old Dec 27, 2011 | 05:48 PM
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Scrape or strip off some paint off by the mounting area of the starter, so you know it has a good reliable ground.
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Old Dec 27, 2011 | 06:39 PM
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I'm not an NCRS guy by any means - but weren't the engines painted with the exhaust manifolds in place, such that there was overspray on the manifolds and then a shadow on the block?
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Old Dec 27, 2011 | 07:01 PM
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Hi b,
You're sorta right.
The bb exhaust manifolds were in place so had some paint on them, but the sb exhaust manifolds went on after paint.
Regards,
Alan
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Old Dec 28, 2011 | 02:22 AM
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Ignition wire shields and gas lines painted with 'aluminum' paint isn't going to cut it with NCRS. And, the paint on the block looks more like Pontiac blue than GM "Corporate" blue. I'm not trying to be "picky", but you asked for feedback....

As far as cleaning things up...you're doing a nice job.
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Old Dec 28, 2011 | 03:59 AM
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Originally Posted by 7T1vette
Ignition wire shields and gas lines painted with 'aluminum' paint isn't going to cut it with NCRS. And, the paint on the block looks more like Pontiac blue than GM "Corporate" blue. I'm not trying to be "picky", but you asked for feedback....

As far as cleaning things up...you're doing a nice job.
Actually gas lines are the original, carbon steel but rather corroded and left in place. You're probably referring to the tranny lines that are replacements but not painted.

The lighting and camera effects "lightens" the actual finish in the photo but the paint matched up nicely with the oil cap color that I left until the end for touch-up. So, the color seemed pretty close to what was left of the original paint.

Heat shields are 5 point condition and originality. Finish is 20% so do you take the hit for rust on condition or take the hit for finish on originality due to non-original finish? So either route won't cut it for about a point. The alternative was to send them all out for cadmium plating. The chrome covers, yet to be installed, were left as original. They are nice but rust is obvious if studied closely.
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Old Dec 28, 2011 | 04:20 AM
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Originally Posted by Alan 71
During the Chevy orange period the jagged part of the timing tab OFTEN had a piece of tape on it.... so no paint; did that continue to the Corporate blue era? Thinking of Top Flight!
The tech manual (1978-79) does not state that that practice continued during the later model years. I know as late as 1977, the manual describes the practice of using a mask on the timing tab and for the center of the harmonic balancer...as well as the dab of grease on the engine VIN stamp pad. Having said that...I've seen many low-mileage timing tabs with no paint...this one got paint!

In 78, pads were painted. So what you expect to see is the engine suffix painted, while the VIN derivative characters, stamped at the assembly plant, the characters cut into the metal and typically some rust can be seen where paint was cut away. I masked my pad and left it as it was. I attempted to retain elements of originality where it was practical and significant enough to do so.

VIN pad
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Old Dec 28, 2011 | 11:03 AM
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were is the clip for the solinod?
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Old Dec 28, 2011 | 11:44 AM
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Originally Posted by Alan 71
Hi b,
You're sorta right.
The bb exhaust manifolds were in place so had some paint on them, but the sb exhaust manifolds went on after paint.
Regards,
Alan
Thanks, Alan. Always new stuff to learn, and the restoration aspect has always facinated me. Not my cup of tea, but I appreciate and admire the knowledge, skill and effort that goes into it!
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Old Dec 28, 2011 | 11:45 AM
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Nice work.

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Old Dec 28, 2011 | 06:10 PM
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Originally Posted by hunt4cleanair
The tech manual (1978-79) does not state that that practice continued during the later model years. I know as late as 1977, the manual describes the practice of using a mask on the timing tab and for the center of the harmonic balancer...as well as the dab of grease on the engine VIN stamp pad. Having said that...I've seen many low-mileage timing tabs with no paint...this one got paint!
My two 78s and two 79s all had fully painted timing tabs.
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Old Dec 29, 2011 | 03:44 PM
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Got some more work done but need some tips on how to crank down the balancer to 60# without the engine turning over.

So, here's the driver's side underneath...a few of the sins are visible.
Engine Left

Topside with pulleys in place, carb, throttle support bracket.

Engine topside

Of course, I found myself experimenting with new paints so here's one for those that have worked to refresh their EGR TVS valve with paint. Its Valspar picked up from Lowe's before hitting the hobby shop...its flat purple. I would suggesting guessing but, with the exception of the color, the closeup gives it away which one is original vs that for service replacement.

EGR TVS Valve
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Old Dec 29, 2011 | 04:59 PM
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Its starting to come together and look great.

You can open your hood and not be concerned about how it looks, rather the compliments.

Great work
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Old Dec 29, 2011 | 05:09 PM
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Originally Posted by 7T1vette
Ignition wire shields and gas lines painted with 'aluminum' paint isn't going to cut it with NCRS. And, the paint on the block looks more like Pontiac blue than GM "Corporate" blue. I'm not trying to be "picky", but you asked for feedback....

As far as cleaning things up...you're doing a nice job.
FWIW, and yes, OP, I read your response - I completely agree with 7T1.

This engine shows the correct shade of blue.

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Old Feb 6, 2012 | 05:11 AM
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Quick update on this project that I'm wrapping up. This weekend I added water and oil and after a few pumps of the pedal...it cranked right up. Let it run several minutes checking for leaks but basically admiring my handiwork. Wanted to back it out of the garage and top of the radiator but thought I best do a walk around including a check underneath. That's when I discovered a pool of tranny fluid. Several CVers have helped figure that out but here are some pics from the top view.

engine final01
engine final02
engine final03
engine final04

Also, in terms of the engine paint shade of color, at Orlando last week, I placed the oil cap from my handiwork on the valve cover of a 176 mile L48 M20 Pace Car that went for $35k. The paint of the oil cap is actually a shade darker than the valve cover...but the lighting fails to capture the subtle difference.

VIN 3976_176 miles

Thanks all for the tips and suggestions.
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Old Feb 6, 2012 | 08:30 AM
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Glad to hear the paint color is just a photo issue. Keep up the good work.
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Old Feb 6, 2012 | 08:48 AM
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You mean to say you're actually doing all that work with the engine still in the car. Pulling an engine, really isn't much a deal, and way easier detailing everything.
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Old Feb 6, 2012 | 09:13 AM
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You used spray cans to paint the engine block?
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