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Lopi Leyden Blower Oil Ports

Post in 'The Pellet Mill - Pellet and Multifuel Stoves' started by Dr_Drum, Sep 9, 2010.

  1. Dr_Drum

    Dr_Drum Feeling the Heat

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    Originally, I didn't think my Leyden's convection blower had any oil ports. Toward the end of last season I noticed it did, but they were pointing down. I took out the blower and oiled it and put it back in for the remainder of the season. With the ports pointing down I doubt my bearings got much oil, and it was apparent that most of the oil had dripped out. Today I took the blower out, removed the comb fan, removed the motor from the scroll cage and rotated it up so that the oil would drain toward the bearings. It was a fairly simple process. Look at yours first of course and if ok great, maybe mine just got assembled by an idiot?

    Below shows the complete blower, the scroll cage with the comb fan removed, a picture of the original orientation of the oil ports pointing down, a picture of the motor rotated and the new oil port orientation, and the modified blower reinstalled.

    After you remove the blower you will need a T-20 torx bit to remove the comb fan, the collar is not an allen set screw. Under the comb fan are 4 hex nuts (11/32" socket drive) that attach the motor to the scroll cage. Be careful, under the washers are rubber gromets with small spacers in them. Pull the motor away from the scroll cage, rotate the motor (clockwise in my case), realign the holes and reattach the nuts. Put the comb fan back on and reassemble. I only rotated it slightly, and it did not put the oil ports on the top. I preferred the port angled.

    Anyway, that's all I have, just wanted to share, pay back to the forum, and maybe help someone out before their blower craps out.
    Mike -

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  2. jtakeman

    jtakeman Minister of Fire

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    Nice tip, Thanks for sharing! You done good.

    If you need to replace that some day. I can help with a cross for you. You just need to post the numbers off the blower housing. But I have seen that one and should be able to get you an aftermarket that will bolt in and perform just as good as the OEM. :)
  3. richkorn

    richkorn Minister of Fire

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    Mike,

    Thanks for the pics and instructions. Mine is cleaned and already to go for the season but I think I'll do this next Spring. I wonder why Lopi (Travis Ind) and even the dealer say that it's "not serviceable"?

    So the motor sits in some sort of housing? And you can spin around the motor in that housing so the oil port is pointing up?

    Thanks Man.
  4. smwilliamson

    smwilliamson Minister of Fire

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    Kooooooooooooooooodos! Very nice. I have a Leyden...now I have to look at mine. IT's due for it's first service since we got it. Thanks a lot... :shut:
  5. Dr_Drum

    Dr_Drum Feeling the Heat

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    Well, sort of, the motor housing itself has 4 studs that line up with 4 holes in the scroll cage part. I just rotated the whole thing. It's really easy when you see it in front of you, but hard to explain.

    Jtakeman, thanks, and when it fails I know who to contact.
  6. smwilliamson

    smwilliamson Minister of Fire

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    Mine are upright.
  7. Dr_Drum

    Dr_Drum Feeling the Heat

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    Ya, I figure it's probably just a case of someone not paying attention during assembly.
    Mike -
  8. richkorn

    richkorn Minister of Fire

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    Mine are down and it's the second blower; first one got real noisy, probably needed a few drops of oil!!!

    I think I'll take that baby out and spin that motor upright this weekend.

    What the recommended oil - like 2-3 drops of 3-in-1 in BOTH yellow plug ports?
  9. imacman

    imacman Guest

    The best would be the 3 in 1 oil in the Blue can...that's meant for electric motors, but I've used the "regular" red can version and it seemed to do fine. Basically any 20w non-detergent oil will work, AFAIK.

    www.3inone.com/products/motor-oil/
  10. richkorn

    richkorn Minister of Fire

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    Cool, thanks.
  11. Dr_Drum

    Dr_Drum Feeling the Heat

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    It's actually printed on the motor label. Mine says to use SAE 20, that's a straight 20 weight oil, as Mac states above, not 5 or 10W etc.
    Mike -
  12. imacman

    imacman Guest

    Same thing stated differently. SAE20 = 20w.
  13. Dr_Drum

    Dr_Drum Feeling the Heat

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    Good catch Mac. I guess I should have said "not 5W-30 or 10W-30, multi-weight oils".
    Mike -
  14. richkorn

    richkorn Minister of Fire

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    Well that definitely confirms these type of blowers can be oiled.
  15. richkorn

    richkorn Minister of Fire

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    Are you going to oil it?
  16. richkorn

    richkorn Minister of Fire

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    Just took mine out today and turned motor so oil ports facing up. Directions to do this were perfect - thanks Mike.

    I also confirmed with Travis Ind. tech that this blower can indeed be oiled and that's why there are yellow oil plugs. He said if the ports were facing down that was a screw up from blower manufacturer.

    2 drops of 3-in-1 blue can sae 20 in each port!
  17. arcticcat1

    arcticcat1 Member

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    How often should you oil them?Is once a season enough?
  18. SmokeyTheBear

    SmokeyTheBear Minister of Fire

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    Depends on what the manufacturer recommends for your particular motor/blower combination.

    On my unit it is every 6 months of use so it isn't really an annual thing.
  19. biglar

    biglar Member

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    Maybe I can pay back a bit now. I was a refrigeration - A/C - commercial appliance tech for 25 years and have extensive experience with this. Do NOT use any kind of detergent oil in electric motor or fan bearings - and that means pretty much any automotive oil. In my youth I didn't believe it and learned the hard way.

    I used the Zoom Spout oilers for years on literally 100's of motors and fans and it works great. The long tube makes it easy to get into tight places. I found that if a motor doesn't have oiler ports, remove it, turn it shaft up and dribble a few drops down the shaft and it'll run into the packing around the bearing and do the job for you. Pay extra attention to the load end of the motor - that's usually the bearing to go.

    Hope this is of use to someone.

    Lar.
  20. Dr_Drum

    Dr_Drum Feeling the Heat

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    That's good info. The exhaust blower on the Leyden does say "NO OIL", but I was going to do what you mentioned anyway. After trying unsuccessfully to remove the set screw from the fan blade collar, I gave up. I still would have had to find a way to access the mounting nuts before pulling the motor out. Way to hard to remove, unless there's a trick I couldn't figure out? Just didn't seem worth the effort with it working properly. I think I'd need to take a torch to the set screw.
    Mike -
  21. richkorn

    richkorn Minister of Fire

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    Mike, I tried this summer to get that set screw off also to clean out behind the blades and it would not budge.

    -rk
  22. imacman

    imacman Guest

    Is it a Torx or allen head?
  23. richkorn

    richkorn Minister of Fire

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    Torx T-20. Its on real tight and didn't want to strip it out.
  24. Dr_Drum

    Dr_Drum Feeling the Heat

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    I think they used a thread-locker like "red" Locktight during assembly? I could see what looked like dried Locktight. Anyway, I gave up. If I would have tried any harder I would have bent the fan shaft and made the thing wobble. If it was assembled with "red" Locktight it must be heated up to remove it with a torch. Mike -
  25. dave1959

    dave1959 Member

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    Nice info. I'll check miine and report back.

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