View Single Post
  #86  
Old April 21st, 2014, 05:32 PM
aphaynes's Avatar
aphaynes aphaynes is offline
-= Site Supporter =-
 
Join Date: Mar 2014
Location: Athens, AL
Truck: 1965 GMC 1000
Posts: 373
Rep Power: 161
aphaynes is on a distinguished road
Default Re: 1964 GMC 1000 Fleetside

Had a comedy of errors Saturday. Had a buddy coming over to guide me through valve lash adjustments. Fired up the truck before he got there to find that I had fuel dripping were the fuel filter connects to the carb. Pulled the fitting between the two, put some sealer on the threads and reinstalled. Feared I may have something causing issues in the float bowl area, so I opened up the carb again and inspected. The needle connected to the float seemed to be sticking. Had to actually back out the fitting the needle goes into to get it to move freely. ???
Got it all back together. Fired it back up and the line was not leaking...but...yes, that ugly but again...

To view some links or images in this forum your post count must be 1 or greater. You currently have 0 posts. Maybe you should introduce yourself with a new topic?


The top gasket on the carb was letting out fuel. Really confused now... I knew I needed to open it back up to see what was happening with the float and the accelerator pump rod, but my help for valve lash had arrived.

So, while placing a few rags to catch leaking fuel, we went ahead and proceeded with adjustments. I have spark plugs and wires on the way, but we pulled the ones that were in there to find they were quite ugly black and very wide in gap. Went ahead and adjusted them according to the manual, just to make do with them until the new ones get here. A while later, we had all valves dialed in to the 0.012H and 0.018H as recommended by Barry and 1965 Motor's Truck Manual I picked up off ebay.


To view some links or images in this forum your post count must be 1 or greater. You currently have 0 posts. Maybe you should introduce yourself with a new topic?



My helper noticed my heater unit had beeen bypassed...next thing I know we have that off the truck and torn apart. Simple low pressure test with the garden hose did not reveal any leaks in the core, but I am sure I need to have that tested better. We did learn the blower motor is completely froze up, but at least the squirrel cage is still in good shape. So some more to add to my to do list and my wish list.

After my help left, I opened the carb...again!

To view some links or images in this forum your post count must be 1 or greater. You currently have 0 posts. Maybe you should introduce yourself with a new topic?

The float appeared to be ok, not sticking. When I removed the accelerator pump rod, I decided to take a peak down in the cylinder it sits in to see what that little ball was up to. To my surprise it was gone!

To view some links or images in this forum your post count must be 1 or greater. You currently have 0 posts. Maybe you should introduce yourself with a new topic?

Where the heck did it go?!? I know it was in there when I initially rebuilt the carb. Surely it did not just fly out when I opened it earlier that day....did it? After deciding I was not going to solve that mystery, I knew I had a spare, so I put it in, reassembled and all was well with the carb once again.

To view some links or images in this forum your post count must be 1 or greater. You currently have 0 posts. Maybe you should introduce yourself with a new topic?

Also, on this third reassembly, I took note of some various measurements on the carb kit instructions I had not thrown away. The accelerator pump rod had more movement when pressing the accelerator than what was spec'd. So adjusted that. Not sure which part of this process fixed my hesitation when pressing the accelerator, but it now seems to be a non-issue.

To view some links or images in this forum your post count must be 1 or greater. You currently have 0 posts. Maybe you should introduce yourself with a new topic?



With no apparent oil leaks from the areas I had been working on the past few weeks, and no fuel leaks, we took a spin around the neighborhood. Got back and still no leaks!!

To view some links or images in this forum your post count must be 1 or greater. You currently have 0 posts. Maybe you should introduce yourself with a new topic?

It was not a long trip, but ran through the gears fine. Sunday, took a peek under the truck to see two small drops of oil on my cardboard. Could be left over oil from previous leaks. Won't know for sure until I clean all of the remaining old stuff off that remains from the major leaks when i got her home.

All in all, I am sure there is still a lot I need to check/test, but the past few weeks of part time working on this were fun, and she seems to be in better shape now than she was when I got her home, so I guess the learning experience is paying off.

To view some links or images in this forum your post count must be 1 or greater. You currently have 0 posts. Maybe you should introduce yourself with a new topic?

Reply With Quote