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Old 06-24-2019, 09:10 AM   #20
Jrgunn5150
Registered User
 
Join Date: Nov 2015
Location: Ionia Michigan
Posts: 336
Re: My other truck, Daryl. 1979 C10 Stepside.

So, I started my truck like, 6 weeks ago. Other than no pedal response, all was sweet. Reasonable oil pressure, nothing exploded, good times.

Fast forward 4 weeks, I'm buttoning things up, starting to figure out how to finalize the wiring, buying 300 headers... Suddenly the injectors won't fire. Probably a TAC/Pedal/Harness problem.

Last Friday, I grab a new pedal, TAC, harness, and for funsies, a TB at the junkyard, all from a smashed truck, so it should all match and work since it drove to the scene of the accident.

Hook it all up, have pedal response, all is great. Obviously I probably screwed up the harness when I adapted the 6.5 diesel pedal.

Since I have water in it now and I want to check for leaks, I go ahead, crank her over. Fires up, sounds sweet, instantly blows oil everywhere, total gusher. Entire pan emptied in less than 2 seconds.

It's done this once before, I thought I just screwed the filter up, I fixed it and went about my business. So I check it now, and sure enough, the filter gasket is blown out. WTF??

So I'm thinking, idk, assembly lube? It tends to turn to goo or whatever. Drain the oil, the 4 oz left, comes out black, great... Blow compressed air up through the filter hole, gauge registers pressure, pull gauge, air shoots out the top of the block, not obstructed.

Turn to the internet for help like a fool, everyone focuses on .0003 of paint on the filter gasket surface, ignoring the fact that it will crank oil right out the gauge port, and even up to the rockers.

Pull oil pump, pan, pickup... 17 gallons of oil on my driveway now. I've learned to embrace it, I just roll in it now, don't even care, whatever, oil is my life. Everything is clear, clean, whatever....

Rig up hose to air compressor, shoot oil through block at 140 psi, shoots out pushrods... All should be well.

REassemble... Fire it up... oil everywhere, again, instant filter failure. Cut filter open, it's clean, clear, and unobstructed.

Pull apart, check relief valve in oil pump, really because I was pulling the oil pump to pull the cam, to punt the entire engine. I was done with it. Is the block cracked somewhere? idk, but I'm over it, I've spent the price of a 5.3 on oil and filters by now.

but, for giggles, i pull the plug on the pump over the relief valve... The thing is stuck, all the way up. I have all the oil pressure, all the time, probably in excess of 100 psi at idle.

FML... New oil pump on the way, we'll see how it goes tomorrow lol.
__________________
J.R.

Link to Daryl's build, http://67-72chevytrucks.com/vboard/s...10#post8443010

Link to my Youtube channel with build info, https://www.youtube.com/thedrivewayengineer
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