The 13B Rebuild Chronicles :: Chapter 1 :: Parts Cleaning

9 11 2008

Okay, almost done with the cleaning of all the parts.  I assembled a number of items for this step:

  • Brass bristled brushes (say that 5 times fast)
  • Small scraper (like a putty knife)
  • Small flat screw driver
  • Old apex and side seals (to use a mini scrapers)
  • Mineral spirits
  • Carburetor/parts cleaner dip
  • Dish soap
  • Oven cleaner
  • Rubber gloves
  • Plastic trough

I filled the plastic trough up with mineral spirits about halfway and, with my rubber gloves on, dropped each part in and cleaned it with with the wire bristled brushes, scraped carbon depoaits off of surfaces and in grooves etc. with the various scrapers, screwdrivers etc.

Once done with all the miscellanneous parts I started on the rotors. Those were a bit mnore difficult as they had some serious carbon deposits on the combustion surfaces.  I hit them with oven cleaner and let that soak in for about 20 minutes, then rinsed off with mineral spirits and scrubbed like crazy with a heavy duty wire brush.  I got most of it off, but the coup de grace was dropping both rotors into the parts dip for about 2 days. They came out looking almost like new.

Here are some pics of the rotors after my mineral spirits wash but prior to the parts dip. I will post some pics of them after the parts dip…quite a change.

One of my orginal rotors was damaged (corner chipped) so I am replacing it with another I found on eBay.  They are both 13B 86-88 year rotors of the same weight, so should have no issues with balance, but I have emailed pictures of both to Atkins Rotary for a professional opinion. I may end up having to buy a new rotor from them, in which case my cleaning will have been in vain. Oh well, it was fun anyway.

Next step: Clean the engine/rotor housings.  ONce that’s done the real fun begins (assembly).

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