By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Jan 24th

Enots semi automatic lubricator

All Topics | Latest Posts

Search for:  in Thread Title in  
vernon stuttard08/06/2020 22:10:37
avatar
18 forum posts

Has anyone any idea how the oil in an Enots oiler arrives in the upper chamber? I've stripped mine down (1924 OK Junior) , all oil ways are clear but the pump will draw oil from the tank when piston is lifted but pumps it back out again when pushed down. How does the oil get to the upper side of the piston? It would appear to operate similarly to a bicycle tyre pump other than there isn't a valve to prevent the oil returning from whence it came. Am I overlooking the obvious?

oldvelo09/06/2020 02:53:55
257 forum posts
54 photos

Hi Vernon

One of my varied intrests is old motor bikes. Dug this out on the interweb Enots Oil Pump

Hope this is use

Eric

vernon stuttard09/06/2020 12:15:16
avatar
18 forum posts

Thanks for your assistance Eric, I had seen this on the net; There is a small drilling at the head of the pump for the oil to get out of the upper chamber but I can't fathom how the oil gets into the upper chamber. I've assembled the piston in both directions but no joy. I'll contact the VMCC; they'll probably know, can't be rocket science!

oldvelo10/06/2020 02:30:53
257 forum posts
54 photos

Hi Vernon

Having had a bit a think about this Oiler with the pump washer facing upwards there may be one way valve in the discharge to the oil drip feed piping as well as the oil control valve.

When the top of the top up the pump chamber is filled with oil. Pushing down the plunger will create negative pressure and pull the oil past the pump washer being by restricted-throttled or blocked by the one way valve.

The spring will maintain the oil supply until it reaches the top of it's stroke.

Hope this Helps

Eric

vernon stuttard10/06/2020 18:24:50
avatar
18 forum posts

Methinks that's it Eric; that's the principle; I'll see if I can get a replacement cup washer, it may just solve it altho' the one already on looks ok. Thanks for your input.

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
Warco
emcomachinetools
ChesterUK
Eccentric July 5 2018
EngineDIY
cowells
Eccentric Engineering
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest