« previous next »
Pages: 1 [2]   Go Down

Author Topic: Stihl MS250C not oiling mystery  (Read 1484 times)

0 Members and 1 Guest are viewing this topic.

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: Stihl MS250C not oiling mystery
« Reply #10 on: April 28, 2016, 08:00:04 pm »
The O-ring is 6.1 X 1.6 and goes between the pump and the plastic connector that plugs into the hose. O-ring 9646-945-0355 

Here's some of the rubber parts . . .



The O-ring is shown installed on the connector in the bottom picture

Logged
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .
Informative Informative x 1 View List

Offline Takoateli

  • 3 cube
  • *
  • Posts: 6
  • Karma: 1
Re: Stihl MS250C not oiling mystery
« Reply #11 on: April 30, 2016, 10:55:00 am »
Thank you everyone who replied! The mystery is solved! I was seating the oil pump in too far. I assumed you just tap it in till it runs into the stop. A fellow at Stihl customer support told me the oil pump has to be positioned so the output hole lines up with the oil port in the housing. I measured and observed the placement as I inserted the oil pump and it's working great.

It was so confusing because all the oil passageways were open, and it had a new oil pump and it was still not working. I hope this info helps other people.
Logged
Like Like x 1 Useful Useful x 2 View List
Pages: 1 [2]   Go Up
« previous next »
 

Related Topics

  Subject / Started by Replies Last post
11 Replies
1340 Views 		Last post March 11, 2011, 08:25:56 am
by Al Smith
85 Replies
5596 Views 		Last post November 03, 2014, 11:12:00 am
by 3000 FPS
mystery cyl

Started by 350XP « 1 2 » Husqvarna

17 Replies
697 Views 		Last post March 17, 2014, 01:59:14 pm
by KilliansRedLeo
12 Replies
1018 Views 		Last post March 23, 2014, 10:53:39 pm
by nyquil junkie
4 Replies
360 Views 		Last post October 16, 2014, 06:56:46 pm
by Randy
4 Replies
351 Views 		Last post January 10, 2016, 07:18:32 pm
by Jyounge
3 Replies
342 Views 		Last post April 26, 2017, 07:00:06 am
by Jacks54
0 Replies
138 Views 		Last post July 11, 2019, 05:19:33 pm
by ratface
0 Replies
119 Views 		Last post July 11, 2019, 08:08:14 pm
by ratface
7 Replies
528 Views 		Last post January 06, 2022, 07:46:46 am
by Cut4fun .