Advertise on Bikeforums.net



User Tag List

Results 1 to 18 of 18
  1. #1
    Junior Member
    Join Date
    Feb 2011
    Posts
    19
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    faulty grease gun

    On a previous thread, I received a link to a grease gun(http://www.harborfreight.com/3-oz-mi...gun-93486.html), provided after I inquired on purchasing an injector to apply bike grease. I purchased this gun, packed it with marine grease, and followed the instructions for application including pressing the trigger, and it won't work. I was curious onn wether someone owns a tool like this one, and can make a suggestion on troubleshooting it. Thank you.

  2. #2
    Senior Member Jed19's Avatar
    Join Date
    Oct 2004
    Posts
    3,635
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mauricio2 View Post
    On a previous thread, I received a link to a grease gun(http://www.harborfreight.com/3-oz-mi...gun-93486.html), provided after I inquired on purchasing an injector to apply bike grease. I purchased this gun, packed it with marine grease, and followed the instructions for application including pressing the trigger, and it won't work. I was curious onn wether someone owns a tool like this one, and can make a suggestion on troubleshooting it. Thank you.
    I can't get to your link. If it is the small HF grease gun that you are referring to, I just bought that gun, and it works perfectly. You need to pack the grease in with a spatula or plastic knife, put the lid on, then push up from the bottom with a solid object ( a beefy screwdriver works well) to get the grease up. I had to drill the orifice on my gun to really get a good flow (was suggested by poster CACycling). He had drilled his gun with a 3/32" bit, but I did mine with a 7/64" bit. The flow is great and the gun is a very good cheap and functional gun.

    Good luck.
    Regards,

    Jed

  3. #3
    Senior Member
    Join Date
    Apr 2009
    Location
    New Rochelle, NY
    My Bikes
    too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
    Posts
    18,067
    Mentioned
    20 Post(s)
    Tagged
    1 Thread(s)
    As previously stated, you have to push up the grease to prime the pump. Once you've done so it'll continue to suck fresh grease and the piston will move up on it's own.

    If you have an air bubble in the piston area you could pump all day and get nowhere.

    BTW- if the pump won't prime by pushing the piston up with a screwdriver, remove the cylinder from the pump and push some grease directly into the pump area then, reassemble. This is messy and shouldn't be needed, so save it for a last resort only.
    FB
    Chain-L site

    An ounce of diagnosis is worth a pound of cure.

    “Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

    “One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

    WARNING, I'm from New York. Thin skinned people should maintain safe distance.

  4. #4
    Senior Member Homebrew01's Avatar
    Join Date
    Jul 2004
    Location
    Ffld Cnty Connecticut
    My Bikes
    Old Steelies I made, Old Cannondales
    Posts
    14,414
    Mentioned
    5 Post(s)
    Tagged
    1 Thread(s)
    Where on a bike do you use a grease gun ?
    Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike

  5. #5
    Senior Member
    Join Date
    Apr 2009
    Location
    New Rochelle, NY
    My Bikes
    too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
    Posts
    18,067
    Mentioned
    20 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by Homebrew01 View Post
    Where on a bike do you use a grease gun ?
    My personal bike has grease fittings in hubs, BB, headset and pedals, simplifying maintenance. none of the components require disassembly in thousands upon thousands of all weather miles.

    Even on bikes without grease fittings I find needle applicator gun to be a good way dispense and apply grease exactly where I want it, while keeping it clean and uncontaminated. When I was Campy's east coast service tech I used the gun to dispense grease for ergolever rebuilds, keeping it exactly where I wanted it and keeping my fingers cleaner.
    FB
    Chain-L site

    An ounce of diagnosis is worth a pound of cure.

    “Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

    “One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

    WARNING, I'm from New York. Thin skinned people should maintain safe distance.

  6. #6
    Senior Member JonathanGennick's Avatar
    Join Date
    Apr 2007
    Location
    Munising, Michigan, USA
    My Bikes
    Hifi 29er, Stumpy 29er, Rockhopper 29er, ...
    Posts
    1,745
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by FBinNY View Post
    Even on bikes without grease fittings I find needle applicator gun to be a good way dispense and apply grease exactly where I want it, while keeping it clean and uncontaminated.
    +1. I know it's a spendy way to go, but I use a Finish Line gun that screws onto those tubes of Park grease. I like it a lot, because I can just pump some out by pushing the thumb-button. It's a luxury, but an inexpensive one.

  7. #7
    Senior Member Jed19's Avatar
    Join Date
    Oct 2004
    Posts
    3,635
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    As FBinNY said in post #5, even if all the grease gun does is allow you to buy grease in $4 tubs, instead of the more expensive tubes, and also prevents the grease from getting contaminated by making sure the unused portion is protected from contamination, then it is worth the $5 price.

    The HF grease gun is very functional, and I recommend it, if you are in the market for a small grease gun.
    Regards,

    Jed

  8. #8
    Senior Member LesterOfPuppets's Avatar
    Join Date
    Sep 2008
    Location
    Vancouver, USA
    My Bikes
    My War
    Posts
    18,405
    Mentioned
    16 Post(s)
    Tagged
    6 Thread(s)
    It took a bit of work to get mine primed.

    Like others, I got it for the grease guard hubs, but also use it to apply grease to seatpost, bolt threads, spoke threads, when packing regular hubs, BBs, headsets, etc.

    I reckon I should note how I primed mine. I held it upside down and smacked it a couple of times (like you would a ketchup bottle) to get the grease to settle in. Then just started pumping away, still with the gun inverted.
    Last edited by LesterOfPuppets; 04-15-11 at 04:01 PM.
    1980ish Free Spirit Sunbird fixed * 1996 Mongoose IBOC Zero-G * 1997 KHS Comp * 1990-ish Scapin * Olde Western Auto Cruiser.

  9. #9
    Senior Member CACycling's Avatar
    Join Date
    Feb 2008
    Location
    Oxnard, CA
    My Bikes
    '08 Fuji Roubaix RC; '07 Schwinn Le Tour GS; '92 Diamond Back Ascent EX
    Posts
    4,388
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Homebrew01 View Post
    Where on a bike do you use a grease gun ?
    The HF grease gun just pumps out grease it does not snap on to zerk fittings. Just an easy way to get grease where you need it (on threads, in bearing cups, etc.).

  10. #10
    Junior Member
    Join Date
    Feb 2011
    Posts
    19
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    What's the "orifice"? Is that the tip of the gun? Or is it the hole on the inside in the cup part?

    Quote Originally Posted by Jed19 View Post
    I can't get to your link. If it is the small HF grease gun that you are referring to, I just bought that gun, and it works perfectly. You need to pack the grease in with a spatula or plastic knife, put the lid on, then push up from the bottom with a solid object ( a beefy screwdriver works well) to get the grease up. I had to drill the orifice on my gun to really get a good flow (was suggested by poster CACycling). He had drilled his gun with a 3/32" bit, but I did mine with a 7/64" bit. The flow is great and the gun is a very good cheap and functional gun.

    Good luck.

  11. #11
    Senior Member Jed19's Avatar
    Join Date
    Oct 2004
    Posts
    3,635
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mauricio2 View Post
    What's the "orifice"? Is that the tip of the gun? Or is it the hole on the inside in the cup part?
    I am referring to the hole at the tip of the gun.
    Regards,

    Jed

  12. #12
    Senior Member LesterOfPuppets's Avatar
    Join Date
    Sep 2008
    Location
    Vancouver, USA
    My Bikes
    My War
    Posts
    18,405
    Mentioned
    16 Post(s)
    Tagged
    6 Thread(s)
    Quote Originally Posted by FBinNY View Post
    BTW- if the pump won't prime by pushing the piston up with a screwdriver
    So THAT's what the slot on the bottom of my Dualco is for? Those things need instructions for geniuses like me.
    1980ish Free Spirit Sunbird fixed * 1996 Mongoose IBOC Zero-G * 1997 KHS Comp * 1990-ish Scapin * Olde Western Auto Cruiser.

  13. #13
    Senior Member
    Join Date
    Apr 2009
    Location
    New Rochelle, NY
    My Bikes
    too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
    Posts
    18,067
    Mentioned
    20 Post(s)
    Tagged
    1 Thread(s)
    The version with instructions costs twice as much.
    FB
    Chain-L site

    An ounce of diagnosis is worth a pound of cure.

    “Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

    “One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

    WARNING, I'm from New York. Thin skinned people should maintain safe distance.

  14. #14
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    24,774
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by LesterOfPuppets View Post
    So THAT's what the slot on the bottom of my Dualco is for? Those things need instructions for geniuses like me.
    Right!!! Notice how it's shaped exactly right for a wide bladed screwdriver?

    To Homebrew01: I have Speedplay pedals that are relubricated using a grease gun to force grease through a small port on the outboard edge until clean grease extrudes from the inboard side. There is no other way to lube them properly.

    I also use the gun to meter grease into hub and other bearing races and as a dispenser for greasing seatposts, etc. It gives me just the right amount in the right place and keeps the bulk grease in the tub or 14-oz cylinder clean since I only dip into it to refil the gun.

  15. #15
    Senior Member
    Join Date
    Jul 2008
    Posts
    1,229
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by FBinNY View Post
    The version with instructions costs twice as much.
    I've got an ancient version of this gun (made in the US by plews or lincoln). It had, when it was new, a bleed port at the top, to one side of the plunger. Push down on it, and air could get out. It's pipe threaded, so I took it out and put a zerk in it. That lets me fill it from a regular sized grease gun, which is a lot less messy. (I did the same thing with my regular guns, so I could fill them from the bulk gun when I worked in auto repair.) The other feature it has that I've never seen anyone mentin is that the needle tip unscrews and you can put a normal tip to grease zerks.

    Do the modern chinese versions still have these features?

  16. #16
    Senior Member LesterOfPuppets's Avatar
    Join Date
    Sep 2008
    Location
    Vancouver, USA
    My Bikes
    My War
    Posts
    18,405
    Mentioned
    16 Post(s)
    Tagged
    6 Thread(s)
    Quote Originally Posted by dscheidt View Post
    Do the modern chinese versions still have these features?
    My Dualco does have a replaceable tip. I just have the stock short tip and got a longer tip so I can reach the Grease Guard hub ports. Haven't shopped for a zerk tip.
    1980ish Free Spirit Sunbird fixed * 1996 Mongoose IBOC Zero-G * 1997 KHS Comp * 1990-ish Scapin * Olde Western Auto Cruiser.

  17. #17
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    24,774
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by LesterOfPuppets View Post
    My Dualco does have a replaceable tip. I just have the stock short tip and got a longer tip so I can reach the Grease Guard hub ports. Haven't shopped for a zerk tip.
    The Duelco's tip has standard 1/8" NPT female pipe threads so you can use anything threaded compatibly as a replacement. I bought a 1/8" NPT male to 1/8" tubing adapter and made a 4" extension out of 1/8" copper tubing to let me add grease to bearing races more easily. The standard Duelco tip works very well as a grease injector for my Speedplays.

  18. #18
    Junior Member
    Join Date
    Feb 2011
    Posts
    19
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks, worked perfectly after drilling the tip.

    Quote Originally Posted by mauricio2 View Post
    What's the "orifice"? Is that the tip of the gun? Or is it the hole on the inside in the cup part?

Posting Permissions

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