Recent content by Schurkey

  1. Schurkey

    Chasing down cyl. 2 misfire (P0302)

    No. Inner ring is pressure measured in Kilopascals (kPa) x 100. For example, 10 x 100 = 1000, 1000 kPa = 145 psi, which is why "10" on the inner ring approximately aligns with "145" on the outer ring. Has nothing to do with compression ratio. I agree. "60 psi" is WAY too low to be accurate...
  2. Schurkey

    Cam Setup For L31 350 Vortec

    I will not use aluminum roller rockers. Others may disagree. Consider Comp Cams Pro Magnums, or Crower stainless steel rockers. You "could" use guideplates instead of self-aligning rockers, but then you'd have to replace the pushrods, too. OEM pushrods aren't hardened, they'll be torn-up by...
  3. Schurkey

    fuel pressure reading.

    1. Is the pressure gauge accurate? How do you know? 2. All those pressures are low. 3. No way to know what is wrong without further diagnosis. Download the service manual set for your vehicle and follow the diagnostic procedure.
  4. Schurkey

    All this work to get it right and it's still a work in progress....What's next?

    The universal three recommendations: 1. Verify fuel pressure at prime, and under load. 2. You've already handled the usual "tune-up" items--distributor cap, rotor, plug wires, spark plugs. Verify PCV, EGR, and Evap/charcoal canister systems. Is your initial timing 4 degrees advanced WITH...
  5. Schurkey

    CEL, P0307. Pulled the plug and looks like oil is on my sparkplug. What would cause oil to be on sparkplugs?

    Please crop your photos so the important stuff is larger/more easily visible, and the unimportant stuff is gone. Do you mean the light came on, or the light flashed on and off, on and off? A solidly-lit MIL means trouble. A flashing MIL means SERIOUS trouble, the catalyst is in danger of...
  6. Schurkey

    Unhooked parts in my engine bay.

    I see a crack at the mounting flange. I bet the item is functionally fine; although it's hard to know without testing. Kinda wondering if the two items are related--would the cut hose have gone to the solenoid on the intake? Any way you look at it, someone screwed the pooch instead of fixing...
  7. Schurkey

    1993 Yukon crate motor hydraulic roller lifter cleaning and adjustment journey - (Solved)

    Lotsa counterfeit parts on Amazon 'n' eBay. Send the photos to Wix/Mann + Hummel. See what they say. I got "Iridium" spark plugs for my Trailblazer from a dirtbag in Forney, Tx. He was an "Amazon associate" seller. Plugs were "not authentic" according to GM. I sent them this photo and...
  8. Schurkey

    Differential compatibility

    1. Wrong width. 2WD is different from 4WD. 2. Therefore he'd need custom axle shafts 'cause C1500 five-lug shafts won't fit. 3. Another 1500 axle--2WD or 4WD--will almost certainly be another craptastic 8.5" with the same horrible rear brakes.
  9. Schurkey

    Correct trans fluid?

    Soft shifts prolong the service life of splines, gears, (including rear axle spines 'n' gears) needle bearings, u-joints, etc. Manufacturers of harsh "shift kits" such as B&M spout a lot of propaganda about shift firmness and clutch life, but clutches are dirt cheap (and practically...
  10. Schurkey

    Chasing down cyl. 2 misfire (P0302)

    Detonation? I'd have said "oil fouling".
  11. Schurkey

    7.4 k2500 header and exhaust and fuel tank ideas

    Perhaps a moderator will move this thread to the Exhaust sub-forum.
  12. Schurkey

    Correct trans fluid?

    Perhaps a moderator will move this thread out of ENGINES and into "Transmissions". Does that vehicle have shift adaption strategy functional in the computer? Wondering if the thinner Dex VI would have changed the shift adaption if you'd left it in there for a few more miles.
  13. Schurkey

    Kill switch, 1997 k1500 pickup

    OK. Build your fuse/fuseholder/switch/additional wire as needed exactly as before. Instead of using blade terminals jammed into the front, solder it to the back side of that same fuse socket being careful to not screw-up nearby wires or sockets. Then put a popped fuse in from the front...
  14. Schurkey

    Kill switch, 1997 k1500 pickup

    The yellow-circled fuse and fuse socket IS the opening in the circuit you need. Don't cut any wires, don't create any new hacktastic harness issues. Remove the fuse. Get an inline fuse holder, put the fuse in the fuseholder. Add a blade terminal to the wire of the fuseholder, and poke it...
  15. Schurkey

    Wanted: Daily driver upgrades/mods suggestions

    Along with the '92-up calipers? How about the matching, larger master cylinder, and larger, double-diaphragm booster? JN/JB5 or JB6 booster on left. Crappy JN3 pancake booster on right. When it comes right down to it, upgrading the rear brakes from the 254mm (10") leading-trailing shoe...
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