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#1 |
Senior Member
![]() Join Date: Jul 2008
Location: Central Coast, CA
Posts: 266
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
RE: gas fumes in the garage. Seems like there may be a few potential sources for this, especially the leak at the carb. However, I'd also suggest replacing that gas cap. My truck that otherwise appeared leak-free had a cracked gas cap gasket and filled the garage with fumes. Replacing with a new cap took care of the issue. Make sure it's a "year-appropriate" cap, meaning it's a vented vs. a non-vented cap. Classic Heartbeat, a forum vendor, supplied a nice locking cap.
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#2 | |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Quote:
I need to get that old carb pulled off and addressed along replacement of the rubber fuel lines. Those are really old and soft.
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1969 C10 Shortbed Last edited by Luke87gt; 07-22-2024 at 01:09 PM. |
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#3 |
Registered User
Join Date: Jun 2021
Location: Ottawa Ontario Canada
Posts: 14
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Nice truck
The engine could be a 230. I have a 69 Short Step low option (ex US government truck) and thought it was a 250 until the machine shop found out it wasn't at rebuild time. Bruce |
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#4 |
Senior Member
![]() Join Date: Jan 2007
Location: Turlock, CA
Posts: 8,671
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
The original engine in that truck was a 250.
Page 8 of this pdf for a CS vin. https://www.gm.com/content/dam/compa...olet-Truck.pdf
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Please help my sister in law with her battle with cancer https://gofund.me/902f6fce Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD |
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#5 | |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,431
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Quote:
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#6 | |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Quote:
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1969 C10 Shortbed |
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#7 |
Registered User
![]() Join Date: Oct 2017
Location: Hudson Valley, New York
Posts: 643
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Like a few others, I just read this whole thread, that truck looks super clean, nice score.
Regarding the fuel smell/system, worth noting (since I ran into this myself) is to check the sending unit pickup 'sock' (filter). This is typically a nylon mesh and over the years can get brittle and 'disintegrate'. After having my carb rebuilt, I started having major gas issues (leaking into the intake). What I initially thought was a poor rebuild, turned out to be fragments of the pickup sock preventing the float needle from seating. Best of luck with the truck, I'll be following along ![]()
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'68 C20 Utility 396 4sp (BuildThread: http://67-72chevytrucks.com/vboard/s...d.php?t=806904 ) '68 C10 50th |
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#8 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
I got the new reflectors installed, they look pretty good.
I did have to get new slightly longer screws as the ones that came on the truck were too short with the new thick foam gasket.
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1969 C10 Shortbed |
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#9 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
And some of you may have seen in the other thread but I did pick up a little 350 this weekend. It may be a while before I get to around to the swap however.
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1969 C10 Shortbed |
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#10 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
I received the dash pad (saddle) and replacement lenses today that I’ve started installing (from SummitRacing)
- 2 grill lights (little rectangular ones) - 4 side markers - 2 backup lenses - 2 tailight lenses The side markers arrived with a thick foam pad resulting in my stock side marker screws being too short, ugh I’ll have to get some pics.
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1969 C10 Shortbed |
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#11 |
Senior Member
![]() Join Date: Jan 2007
Location: Turlock, CA
Posts: 8,671
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
That’s super nice!!
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Please help my sister in law with her battle with cancer https://gofund.me/902f6fce Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD |
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#12 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Finally got the full set of 275/60/15 BFG Radial T/A tires to go onto the 15x8 truck rallies.
Should have those on soon!
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1969 C10 Shortbed |
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#13 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Tonight I put the kids to sleep, grabbed a beer, and replaced the valve cover gasket on the 250. I also gave the valve cover a degreasing before I bolted it back up.
The rockers look sludgy, let’s see if this 250 will come back to life.
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1969 C10 Shortbed |
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#14 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Also, I haven’t had a chance to trace these wires yet but wondering if you guys may know where each is going…
To clarify, there is a wire coming from the battery’s + lead into the pictured bank. Then there’s 3 additional wires coming off of that hot bank. Thanks By the way, one thing I am not used to at all is how difficult it is to reach the back of the motor on these C10 trucks lol. For example, getting to those back valve cover bolts should qualify me for the next Olympic gymnastics trials
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1969 C10 Shortbed Last edited by Luke87gt; 08-17-2024 at 04:02 AM. |
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#15 | |
Registered User
Join Date: Mar 2019
Location: San Ramon, CA
Posts: 227
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Quote:
The engine bays on these trucks are large, sometimes I use a small step ladder to reach the back. |
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#16 | |
Senior Member
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Location: San Ramon,CA
Posts: 505
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Quote:
Of course, then I bang my head on the hood a lot The truck always wins
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1970 C10 Custom longbed 350/350 |
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#17 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Thank you for that!
It looks like one of the wires runs to the fuse box. The other is labeled “Engine Ham” … what is that? And then I need to trace the 3rd mystery wire on my 6cyl
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1969 C10 Shortbed |
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#18 |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,491
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
It's quite common to see other stuff wired to the junction block. But from the factory the junction block has a 12 gauge wire coming from the battery, and a second wire going through a 16 gauge fusible link, and then on to the "splice" on the drivers side of the radiator support. At the soldered splice, the battery wire is connected to the alternator output wire and the fuse panel feed wire.
It's been a while, but the mechanical regulator may also be connected to the splice. If your truck has an ammeter instead of a warning lamp, the wire that runs from the battery junction block to the splice will actually be a resistance wire with tiny fuses on each end. The ammeter is actually just a voltmeter with "zero" in the center, and it responds to current flow and direction (charge/discharge) across the resistance wire. Kind of a strange way to do it, but I guess GM didn't want to run 30-40 amps into the cabin and use an actual ammeter.
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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#19 |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,431
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
^ GM was smart to use a shunt, in my book. I've been under the dash of many a Mopar with scorched wires at the ammeter. Thermal expansion and contraction eventually created a weak connection.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#20 | |
Registered User
Join Date: Oct 2010
Location: Yakima Valley, Washington
Posts: 578
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Quote:
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1951 GMC 250 Open Express Pickup 1968 Suburban C10 1971 C20 Olive “People are shocked when they find out I’m not a good electrician” Dad told me “Son, never strike a man in anger- unless you’re certain you can get away with it” |
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#21 |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,491
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Speaking of resistance wire: On some GM cars, instead of a ballast resistor on the firewall, the wire from ignition switch to coil is a resistance wire, and it was bundled in with other wires under the dash.
I worked on a 64 GTO that was hard to start, and wouldn't rev like it should. Turns out someone had added an HEI but left the resistance wire in place, so the distributor was getting only around 9 volts. That resistance wire was melted into an under-dash wire bundle, so I replaced it with a 12ga wire. After that, the engine started easy and revved well. But I had aches and pains from lying on my back!
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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#22 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Well it’s been a motivated weekend. I managed to get the 275/60/15 BFGs onto the 15x8 4.0” BS truck rally wheels.
Not on the truck yet but looks to be a big improvement over the wheels the truck arrived with.
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1969 C10 Shortbed |
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#23 |
All stock and staying that way
![]() Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,474
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Still has at least one original T3 headlamp bulb!
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1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress... ![]() 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... ![]() 2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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#24 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
Wow, how can you tell that 😀
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1969 C10 Shortbed |
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#25 |
Registered User
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 198
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Re: Purchased a 1969 C10 Short Bed - Pleasanton, CA
I will say that I am not used to the weight of these truck rally wheels.
I’m not sure what each weighs but it’s by far the heaviest wheel I’ve ever handled on a vehicle lol. Each wheel needed 2-3oz of weight to balance out. With typical lightweight alloy sedan wheels, I typically need 0-0.5oz to balance. Tire shop didn’t seem concerned and said although more weight is sometimes needed for steel truck wheels, they balanced out fine in the end.
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1969 C10 Shortbed |
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