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11-04-2020, 08:15 PM | #1 |
BMW & ASE Master Certified
Join Date: Feb 2004
Location: Houston, Texas
Posts: 1,266
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L83 DOD manifold oil supply plug
After experiencing what sounds like a collapsed DOD lifter, pulled the head and inspected #6 lifters they are locked in the right position compared to #4... not 100% sure as the heads still not back on it but after looking for solutions to prevent oil to enter the VLOM or LOMA found only one guy that sells a sleeve that looks like he tool a cylinder head down and ground it against the concrete..
Measured the hole, searched and found a dowel pin that is the right size. Spare VLOM with the solenoids removed.. Sleeve / dowel pin Installed with green locktite as a lube Reinstalled the hex cap plug, turned the manifold upside down and leak tested it.. it has a tiny bit of seeping air pressure, 125psi... prob not enough that it could reach the lifter to collapse it if a solenoid stuck open (since there a bleed off port/ screen). In the end, a complete DOD delete is the best, but this 3$ mod feels like it's worth it!
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1987 Silverado - L83 5.3 w/ 6L80e ,A/C,P/W,P/L,TILT, HID projectors, Wilwood C-10 Pro Spindles w/ 2018 silverado front brakes & C-5 Corvette Rear Disc Brakes 1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit New project: 2006 BMW x5 6cyl AWD to L83 6l80e 4wd to 2WD / RWD A poor man buy's it twice finally got my domain name back, 87chevy.com.... site rework in progress |
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