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-   -   My 1968 C-20 Golden Anniversary Project (https://67-72chevytrucks.com/vboard/showthread.php?t=760400)

GerhardH 10-06-2020 02:28 PM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Oil pump pressure set to "stock"

GerhardH 10-07-2020 04:15 PM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Today tried to assemble. Got a reverse. In the overhaul book is written:
327 11/32-24 connecting rod cap 35 ft lbs
327 7/16-14 main bearing cap 80 ft lbs

Tried the main caps, after 70 ft lbs I got a bad feeling, stopped.
tried 35 ft lbs on the rod bolt , 30 ft lbs ok than the bolt would be longer and longer and longer
:(:(:(

Now ordering new ARP bolts and try again

GerhardH 10-08-2020 01:11 PM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Finished timing gear cover,
chain play new timing gear from 1968: in: 3.868"; out: 3.541"

Lesson learned: It is not necessary to remove the "half moon" key in the crankshaft but was a good training. :smoke:

GerhardH 10-08-2020 01:14 PM

Re: My 1968 C-20 Golden Anniversary Project
 
4 Attachment(s)
some more:

GerhardH 10-08-2020 01:24 PM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
After I got the right washers, finished the valve and spring assembly heads.

Installed height between 1.725" and 1.730" (origin is 1.750").
Valve pressure measured by 1.750" = 132 ft lbs. , second measurement after movement of the spring: 126 ft lbs. and third measurement after further movement of the spring 121 ft lbs.

Valve pressure measured by 1.730" = 130 ft. lbs. seat pressure
Valve pressure measured by 1.725" = 132 ft. lbs seat pressure

(The Summit 174000 valve spring kit has the following pressures.Seat Pressure at Installed Height 1.750" (lbs):125 lbs. Open Pressure (lbs):325 lbs.)

GerhardH 10-08-2020 01:26 PM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Some more:

GerhardH 10-08-2020 01:36 PM

Re: My 1968 C-20 Golden Anniversary Project
 
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I ordered the wrong set kit SUM-174001 get seals for 0.307 in. Valve Guide Diameter (in): 0.485 in.

Than I ordered the set for the right valve diameter SUM-174000 0.344 in. (11/32), but the Valve Guide Diameter (in): 0.530 in. instead of my 0.560"

Than I ordered additional seals by Alex parts: .520"- .565".

In my opinion all three different seals are the same.

Lesson learned, read exactly "before one click buy".

GerhardH 10-15-2020 04:19 AM

Re: My 1968 C-20 Golden Anniversary Project
 
3 Attachment(s)
Suffered the next defeat. My block is Chevrolet small block 2-Bolt Main, small journal, therefore I ordered the ARP-134-5002 Kit.

To short- assuming that the CE (service replacement/warranty engine, casting # 3959512) was prepared as small and big journal to provide solutions for all guarantee cases?

GerhardH 10-15-2020 01:44 PM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Continue!

GerhardH 10-15-2020 01:46 PM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Some more

GerhardH 10-15-2020 01:48 PM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Fuel-,oil pump and cylinder heads

The small plastic bushing in my opinion don't needed if you have an oil pump shaft with a guide (both in picture 1).

Copper oil pump gasket SUM-111480, in my opinion normally not needed, but can't hurt.

GerhardH 10-15-2020 01:52 PM

Re: My 1968 C-20 Golden Anniversary Project
 
1 Attachment(s)
Head bolts ARP #134-3701 (12-point)

16 pcs 1.750" UHL
04 pcs 3.060" UHL
14 pcs 4.180" UHL

Working perfect.

Torque: 70 ft lbs

GerhardH 10-18-2020 08:46 AM

Re: My 1968 C-20 Golden Anniversary Project
 
4 Attachment(s)
Preparing rockers, pushrods etc.

Despite I ordered the same part number EPR 34B (8 pcs. each) twice I received two different lengths pushrods=== TIME DELAY!!! Lesson learned: Always order one complete set.

Right length 7.794“
Wrong lenght: 8.544“

Time for preparing accessoiries.

GerhardH 10-18-2020 08:54 AM

Re: My 1968 C-20 Golden Anniversary Project
 
4 Attachment(s)
Preparing valve covers.

Grommets are perfect:
PCV Valve grommet 42052 Dorman and/or WVE 2P1006

Ol Blue K20 10-18-2020 09:06 AM

Re: My 1968 C-20 Golden Anniversary Project
 
That's gonna be a nice engine!

GerhardH 10-18-2020 09:40 AM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
THANKS DALE!

Found out that the NOS flame arrestor #3857476 is wrong- too big, see picture. Fortunatly I have a complete set from our fellow ROOGER KOOP here in the forum.

GerhardH 10-18-2020 10:01 AM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
FOUND THE RIGHT FITTINGS FORE THE OIL PRESSURE GAUGE AND VACUUM GAUGE INSTALLATION.

NAPA 302X2, 6200X2, 6100X2
LMC truck 36-1923 Oil Pressure Tube Kit-49", 31-3406 Vacuum fitting-Tee-Barbed,31-3404 Barbed Fitting-Gauge

Bolts Air intake Manifold: ARP 134-2001

GerhardH 10-18-2020 10:18 AM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Preparing Water outlet, found out that my manifold despite the same casting number as the original has not the hole for cooling water (connection to pump), therefore I try the riser (thermostat above the opening for the hole)

GerhardH 10-18-2020 10:23 AM

Re: My 1968 C-20 Golden Anniversary Project
 
4 Attachment(s)
Some more pictures:

Gasket FEL-2202
Vintage Air water Neck Riser VTA-706001-VCQ
Water outlet four seasons 84820
Thermostat: Mr Gasket #4365 195° Fahrenheit (90.5° C)

GerhardH 10-18-2020 10:30 AM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Further manifold accessories:
Vacuum fitting (for power brake, heating/air condition reservoir & transmission TH400, spigott must be inside the fitting.

Distributor fittings

GerhardH 10-18-2020 10:39 AM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Rockerarm Kit SUM -G6800 1.5 Ratio, Fits 3/8" studs

Hydraulic lifter Federal Mogul HT-817

Engine Mount screws totally stainless 6-2259

GerhardH 10-18-2020 10:51 AM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Temperature sending unit: 01513321

Preparing exhaust manifolds #3896956 #3855163

Exhaust Manifold LH (Driver): 3855163 L.H (Cast 8155163A or 3855163A), interchangeable 387241
Exhaust Manifold RH (Passenger): 3896956 R.H. (discontinued use 3905364 or 3932469)

Preparing some measurements camshaft degreeing

GerhardH 10-18-2020 10:56 AM

Re: My 1968 C-20 Golden Anniversary Project
 
5 Attachment(s)
Oil dip stick Kit PRO-66116

Some pictures regarding exhaust gas mainifold heat shields

cornerstone 10-23-2020 08:18 PM

Re: My 1968 C-20 Golden Anniversary Project
 
Amazing work Gerhard! You're going to have the nicest C10 in all of Germany:chevy::metal:;):smoke:

GerhardH 08-09-2021 10:08 AM

Re: My 1968 C-20 Golden Anniversary Project
 
1 Attachment(s)
Last entry from 10-18-2020, 04:56 PM , was completly frustrated, because of the not matching valve timings (tested with Summit Degree Wheel), after studing and learning alot now new hope, start soon.

Ol Blue K20 08-10-2021 06:45 AM

Re: My 1968 C-20 Golden Anniversary Project
 
Goodness, you're getting technical. I'm glad to see you're still around....

GerhardH 05-26-2022 04:24 AM

Re: My 1968 C-20 Golden Anniversary Project
 
1 Attachment(s)
Hobby is gone, truck sold, was a nice time here in the forum

68bowtie 05-26-2022 07:13 PM

Re: My 1968 C-20 Golden Anniversary Project
 
Noooo! Say it isn’t so. Call it temporary, leave the door open just in case another truck happens to cross your path.

LT7A 05-28-2022 05:52 AM

Re: My 1968 C-20 Golden Anniversary Project
 
Oh man, hadn't seen this build before, was just getting into it. I've never seen such detailed care taken in engine assembly. Good luck Gerhard. Sorry to hear that you sold it, but sometimes that has to happen. Hope to see you back. It looks like you got it all together. How did it run?

Ol Blue K20 05-30-2022 06:58 AM

Re: My 1968 C-20 Golden Anniversary Project
 
You can still stop in Gerhard.

cornerstone 05-31-2022 05:00 PM

Re: My 1968 C-20 Golden Anniversary Project
 
I'm surprised! What's the next project Gerhard?

JerDom 09-22-2023 12:18 PM

Re: My 1968 C-20 Golden Anniversary Project
 
Quote:

Originally Posted by Ol Blue K20 (Post 8955862)
Goodness, you're getting technical. I'm glad to see you're still around....

Quote:

Originally Posted by GerhardH (Post 9083628)
Hobby is gone, truck sold, was a nice time here in the forum

I JUST came across this thread.

I knew this was going to happen :(

I gave, made, sold many parts to Gerhard and tried to give him a lot of common sense advice but being a German engineer he was determined to complicate the living dung out of everything.

I always wondered if he'd frustrate himself into packing it in which looks like finally happened - so sorry , too bad :(

Jerry in Canada


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