Can you please wright how to disassembled and assembled after cleaning. I heard horror stories from mechanics , that if you moved them it will never run a same again.
I changed fuel injector nozzles, and result same as you experienced even louder or same. Than I added 2 -stroke oil, and it's get better sometimes it's so good I can hear soft clucking.
https://youtu.be/maiKdps41i4
Quote:
Originally Posted by Diseasel300
Just a word of advice and caution to anyone willing to be guinea pigs with DV face polishing:
USE THESE INSTRUCTIONS AT YOUR OWN RISK!!! PLEASE BE CAREFUL AND DON'T TRY THIS ON YOUR ONLY MEANS OF TRANSPORTATION!!! EVERYTHING BEING DISCUSSED HERE IS THEORETICAL AND EXPERIMENTAL!
If you do wish to try polishing your DV sealing faces, use common sense and follow the instructions below:
1: Make sure you have your DV oriented correctly. If it has a groove on the barrel, it should be pointing down, away from the plunger part of the DV.
2: Before you do anything to the DV, clean it in solvent, such as lacquer thinner to remove any varnish or contaminants.
3: Dip the entire DV in a thin oil such as sewing machine oil, or even WD-40 as a lubricant.
4: Use Cerium Oxide as your abrasive. It is extremely fine (finer than makeup powder) and is a very "soft" abrasive.
5: Use a battery operated drill and fasten the tip of the plunger part of the DV that the spring attaches to in your drill chuck.
6: Use a toothpick dipped in oil to transfer some of the cerium oxide to the beveled face of the DV. Try not to get it anywhere else. Keep applying until you have a coating of the cerium oxide on the face.
7: Insert the plunger into the barrel and press the two pieces together firmly and run the drill at medium speed for ~15 seconds.
8: Pull the parts apart and clean in your solvent. Inspect the faces and look for a polished appearance. If they need more polishing, repeat 3-7 above until you're satisfied with the final appearance.
9: Use a toothpick dipped in cerium oxide to clean up the entire beveled face of the plunger. I held the drill up and ran the tip of the toothpick back and forth over mine. This will help get any other oxides off and give you a fully polished sealing face.
10: Clean both halves of the DV in CLEAN solvent. Dry and repeat in a new pot of CLEAN solvent. Use a tooth brush or a Q-tip to really scrub everything perfectly clean.
11: Dip the DV in thin oil and reassemble to check fit. It should move freely without dragging. Press the DV halves together and twist. It should not feel "rough".
Keep in mind this process and all of the anecdotes attached to it are theoretical and experimental. If you screw up your IP or break your only car, you have yourself to blame. Not I, Pelican Parts, or anyone else is responsible for you or your engine. As the fine print always claims - "Your results may vary"
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