Results 1 to 7 of 7

Thread: Lightweight Oil Cooler and Starter recommendations

  1. #1

    Join Date
    Nov 2019
    Location
    Northern MN
    Posts
    60
    Post Thanks / Like

    Lightweight Oil Cooler and Starter recommendations

    Hello All.

    Bought a PA-12 this past spring with an O-320-A1A on a long mount and a Borer 82/41 prop. When flying solo it's nose heavy with just me in it and nothing in the baggage. I've been using ballast in the baggage for solo flying which makes it much easier to trim to speed in the pattern.

    I thought eventually I would update the old timey heavy oil cooler and starter with lightweight versions of both. Well, today I went out to fly on a beautiful Northern MN fall day and discovered one of the oil cooler brackets was broken. So, I figured as long as my mechanic has to get at it I may as well replace the cooler and starter with something lighter to get some weight off the nose.

    I know I've read threads about the topic and I tried searching but couldn't find the discussions I've seen. Just wondering if there were any recommendations from the crowd as to what I should be looking for and what I should avoid.

    Thanks for your input!

  2. #2
    wireweinie's Avatar
    Join Date
    Aug 2013
    Location
    Palmer, AK
    Posts
    4,153
    Post Thanks / Like
    Sky-Tec starters. Either HT or NL models. and make sure you have a GOOD ground strap from the crank case to the airframe.

    Web
    Life's tough . . . wear a cup.

  3. #3

    Join Date
    Jul 2012
    Location
    Montana
    Posts
    503
    Post Thanks / Like
    I love my Niagra light weight oil cooler, I think I saved 4-5# off the nose. It takes a little bracket modifying with the skytec starter but pretty easy to do. The light weight alternator to replace the generator only saves you about 1 pound, a very expensive pound.
    Staying alive in an airplane has a lot more to do with mastering ourselves than mastering the aircraft.

  4. #4

    Join Date
    Nov 2019
    Location
    Northern MN
    Posts
    60
    Post Thanks / Like
    Thanks for the responses so far. The previous owner already made the alternator change so that pound was already taken care of.
    Likes mixer liked this post

  5. #5

    Join Date
    Apr 2017
    Posts
    8
    Post Thanks / Like
    I have a O-320 A2B on a long mount. My empty CG is 12.9. CG with just me and full fuel is 13.5. I assume your cooler is front mounted? If so, you could go to a rear mounted cooler. I replaced the original boat anchor of a starter with a SkyTec XLT. I replaced the generator with a B&C lightweight alternator which was a decent weight savings between the two full setups. My oil cooler was already rear mounted which moves the arm back some. I do have a baby Bushwheel tailwheel which added a little weight over the Scott 3200.

    -Chris

  6. #6
    Kodiakmack's Avatar
    Join Date
    Sep 2020
    Location
    winters in Utah, Summers in Idaho
    Posts
    163
    Post Thanks / Like
    Anybody know if the dimensions of the Niagara cooler are smaller? I’ve got the old oil cooler on nose bowl violence I’d like to see go away.
    HAVE FUN. DON'T DIE.
    Thanks JeffP thanked for this post

  7. #7
    acroeric's Avatar
    Join Date
    Nov 2005
    Location
    Burlington, NC
    Posts
    125
    Post Thanks / Like
    I assume you probably have a white airworthiness certificate so this may not apply but Skydynamics Featherweight Flywheels are -3 lbs right where you need them. I have run them on all my (experimental) aircraft with excellent results.

    http://skydynamics.com/products/engi...eight-flywheel

    I would think that it may pass the sniff test on a 337, especially if you used a vacuum pad mounted alternator. I'm going from memory on the field approval checklist so your mileage may vary.

    DGAPilot is a bit better at than than I and would be a great resource to bounce the idea off.

Similar Threads

  1. Lightweight starter
    By bob turner in forum Cafe Supercub
    Replies: 15
    Last Post: 03-03-2014, 10:52 AM
  2. Replies: 8
    Last Post: 06-18-2012, 04:34 PM
  3. Lightweight starter for PA-18
    By Scruffdog in forum Cafe Supercub
    Replies: 7
    Last Post: 05-05-2011, 08:39 AM
  4. Sky-Tec Lightweight Starter/ Oil Cooler Interference????
    By acroeric in forum Super Cub Sick Bay
    Replies: 9
    Last Post: 12-11-2006, 03:41 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •