Author Topic: Grease Nipple? (Read 3303 times)

cafe2be · « **on:** January 22, 2009, 06:39:26 AM »

Possible to replace on my 77 cb750f? I think it broke off and would like to replace it. Thanks Andrew

cafe2be · « **Reply #1 on:** January 22, 2009, 06:39:52 AM »

Grease nipple for the swing arm sorry.

bryanj · « **Reply #2 on:** January 22, 2009, 06:50:28 AM »

Yes they are a push fit if in the end of the bolt and screw fit if they are under tha swing arm

cafe2be · « **Reply #3 on:** January 22, 2009, 06:56:33 AM »

bryan, thanks. I am not following you throughly.
The nipple is positioned under the swing arm. So it is a push in mount or threaded mount.

Where can I find a replacement?

bender01 · « **Reply #4 on:** January 22, 2009, 07:17:01 AM »

auto parts store. Theyre called (grease zerks) Take it with you.

333 · « **Reply #5 on:** January 22, 2009, 07:28:33 AM »

Typically, they screw in. Good luck.

mystic_1 · « **Reply #6 on:** January 22, 2009, 08:55:11 AM »

Quote from: cafe2be on January 22, 2009, 06:39:26 AM

Possible to replace on my 77 cb750f? I think it broke off and would like to replace it. Thanks Andrew

Did it break off, or fall out? If it broke, make sure to get the stub out or your grease isn't going anywhere.

The stock zerks are pressed in. Replacements will be larger and will screw in. I have pics from when I did mine somewhere, I'll dig them out tonight.

mystic_1

dn4911 · « **Reply #7 on:** January 22, 2009, 10:25:47 AM »

If you have a Tractor Supply you can get the metric ones, which are the closest fit, can't remember the tap and drill size, I think they were 5 or 10 for $3, not hard to do, a nice easy project.

cafe2be · « **Reply #8 on:** January 22, 2009, 12:00:01 PM »

hey DN, I dont have a tractor store here in NYC.

The nipple broke off, I will take to pull out the remainder before sending out to powdercoating. I will try the local store. I can always tap a new hole for a screw in. Thanks for the help as always!

mystic_1 · « **Reply #9 on:** January 22, 2009, 05:04:28 PM »

(click for larger images)

Start:

Pulled nipple off with vice grips. (wince)

Drill to size appropos of tap. Coat drill with grease to catch chips:

Tap, again with grease to catch chips:

Tapped:

New zerk:

Installed:

Afterwords, I pulled the pivot bolt out of the swingarm and pumped a bunch of grease through both sides in order to flush the few tiny chips of metal that inevitably ended up inside the bolt.

cheers

mystic_1

GammaFlat · « **Reply #10 on:** January 22, 2009, 07:48:56 PM »

nice write-up Mr. Mystic.

bryanj · « **Reply #11 on:** January 22, 2009, 08:41:09 PM »

Very nice write up, problem is on the 76 the grease nipple is under the swing arm into the centre of the swing arm cross tube not the pivot bolt.

I thought they were screwed in and you should be able to get one from Honda

mystic_1 · « **Reply #12 on:** January 23, 2009, 05:11:53 AM »

I gotta learn to read better

mystic_1

cafe2be · « **Reply #13 on:** January 23, 2009, 06:41:15 AM »

I was looking at that mistic and saying that was pretty cool mod.

Yes my nipple is mounted under the swing arm in the middle. I could easily just remove whats in there now and tap the hole.

Duke McDukiedook · « **Reply #14 on:** January 23, 2009, 09:10:05 AM »

Thanks Mystic, I was wondering how in the heck I was supposed to put a gun on that nipple on my K3

Deltarider · « **Reply #15 on:** January 23, 2009, 11:30:31 AM »

On mine the nipple is under the swingarm too. Why is it I never succeed to get grease in there?

dn4911 · « **Reply #16 on:** January 24, 2009, 09:28:08 AM »

Quote from: cafe2be on January 22, 2009, 12:00:01 PM

hey DN, I dont have a tractor store here in NYC.

Seems like a Tractor Supply Store would be a big hit in Manhattan!

Bouncer · « **Reply #17 on:** January 24, 2009, 11:16:39 AM »

Off topic, but if someone has a dual zerk bolt please let me know. HondaMan is rebuilding my swing arm and would love to pay someone for one.

Jakoba · « **Reply #18 on:** January 24, 2009, 11:45:42 AM »

Just replaced the grease nipple (under the swingarm) on my 78 750k and it's a 6 mm thread.

?Got it from my local NAPA Dealer.

Cheers

Jako

mystic_1 · « **Reply #19 on:** January 24, 2009, 11:56:45 AM »

Quote from: Deltarider on January 23, 2009, 11:30:31 AM

On mine the nipple is under the swingarm too. Why is it I never succeed to get grease in there?

On that design, when you're pumping grease, you're trying to force it from the center of the swingarm all the way down to both ends of the pivot bolt, at the same time. On the dual-zerk design, you're only needing to move the grease a few inches, and you're only pushing against one column of grease.

In older bikes, the grease in the passages is likely old and cruddy, so when you try to push in new grease, the old grease is blocking things up.

I do believe Hondaman covered this in the FAQ section somewhere.

mystic_1

markreimer · « **Reply #20 on:** July 04, 2012, 07:03:08 PM »

I recently replaced my swingarm bushings and when I was pumping grease through one of the zerks, it built up enough pressure that the zerk on the opposite side popped out of the pivot bolt, with a bunch of fresh grease oozing out after it. I had thought each zerk only provided grease to one size of the swing arm and that the two sides were not connected. My experience suggests otherwise. Just thought I'd point that out as it seems some people think the zerks are independent of each other.

With the one zerk popped out I'll be drilling and threading the bolt and putting in some newer zerks I guess. Probably should have done that when the swingarm was off anyway.

News:

Author Topic: Grease Nipple? (Read 3303 times)