Author Topic: Factory Tools?  (Read 899 times)

0 Members and 0 Guests are viewing this topic.

Offline KilliansRedLeo

  • Nitro Hotsaw
  • *******
  • Posts: 2361
  • Karma: 80
  • Location: Rochester, NY
    • RoCHusqvarna
Factory Tools?
« on: May 29, 2014, 08:50:04 pm »
I need to remove the clutch, flywheel and split the cases on a Dolmar 7900. I am wondering if there are factory tools for these things and what the part numbers for the tools might be.
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Share on Facebook Share on Twitter


Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: Factory Tools?
« Reply #1 on: May 29, 2014, 09:08:18 pm »
The Dolmar 372 clutch tool works on the 7900.

There's been a great deal of this work done without factory tools but just common general purpose ones.

There's no internal threads on the exterior of the flywheel to use a special tool like on a Stihl.
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 . . .

Offline Bitburger

  • 4 cube
  • **
  • Posts: 39
  • Karma: 7
  • Location: Menlo Park, CA
Re: Factory Tools?
« Reply #2 on: May 29, 2014, 09:17:07 pm »
German Handbook says roughly:

Removing the flywheel by using the bolt part 944.500.880 in order to apply jarring blows on the shaft end of the crankshaft without damaging the thread.

There is no puller as for older models. Hope this helps... :P

Offline man of stihl

  • Nitro Hotsaw
  • *******
  • Posts: 1219
  • Karma: 71
  • NW PA
  • Location: nw pennsylvania
Re: Factory Tools?
« Reply #3 on: May 29, 2014, 09:19:56 pm »
I use a punch on the end of the crank. Have someone hold the saw. Whack the crank with punch. Saw goes down. Flywheel stays up. Flywheel is off. I'll talk to my Amish dolmar dealer this weekend about a clutch tool.
Ron

Offline man of stihl

  • Nitro Hotsaw
  • *******
  • Posts: 1219
  • Karma: 71
  • NW PA
  • Location: nw pennsylvania
Re: Factory Tools?
« Reply #4 on: May 29, 2014, 09:26:21 pm »
What saw is this TJ?
Ron

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: Factory Tools?
« Reply #5 on: May 29, 2014, 09:28:40 pm »
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 . . .

Offline man of stihl

  • Nitro Hotsaw
  • *******
  • Posts: 1219
  • Karma: 71
  • NW PA
  • Location: nw pennsylvania
Re: Factory Tools?
« Reply #6 on: May 29, 2014, 09:31:29 pm »
OK. I think he uses a husky case splitter but I'll ask this weekend. I guess he says what saw in his first post lol.
Ron

Offline KilliansRedLeo

  • Nitro Hotsaw
  • *******
  • Posts: 2361
  • Karma: 80
  • Location: Rochester, NY
    • RoCHusqvarna
Re: Factory Tools?
« Reply #7 on: May 29, 2014, 09:33:45 pm »
I checked, it appears that the Husqvarna 372 clutch tool will work on the clutch.
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: Factory Tools?
« Reply #8 on: May 29, 2014, 09:50:11 pm »
The 372 clutch tool works on my 7900 like it was made for it. A burp from the air wrench and the clutch spider is off.

I re-did the oil pump on my 7900 last August. While I was at it, I used a new worm and the newer style clutch bearing. My older 7900 is a 2006 model. Apparently, they changed the bearing in 2009.

The old clutch bearing is a 10 X 14 X 12

The new bearing is a 10 X 16 X 12 and has more rollers

Each bearing requires the appropriate clutch drum.
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 . . .

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: Factory Tools?
« Reply #9 on: May 29, 2014, 09:57:13 pm »
Also in 2009 there was a new chain catcher used that is rounded on the chain side.

There was also a cup added to the upper AV on the top handle to cylinder as a travel limiter.

If the rubber tail (166 chip guide, part # 038 213 190) is not on the back of the chain cover, chips will eventually erode the front corner of the gas tank.
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 . . .

 

Related Topics

  Subject / Started by Replies Last post
37 Replies
4702 Views
Last post February 21, 2014, 03:18:14 am
by fordfairlane78
1 Replies
189 Views
Last post October 19, 2013, 11:59:12 pm
by stihls066
17 Replies
885 Views
Last post December 02, 2013, 03:51:23 pm
by jmester
38 Replies
1136 Views
Last post December 07, 2018, 02:46:41 pm
by Philbert
20 Replies
515 Views
Last post September 13, 2015, 07:36:18 pm
by 1manband
31 Replies
421 Views
Last post November 25, 2015, 10:07:18 am
by Cut4fun .
2 Replies
224 Views
Last post November 05, 2016, 01:21:29 pm
by fisaw
2 Replies
102 Views
Last post August 19, 2017, 11:55:21 am
by deezlfan
4 Replies
362 Views
Last post November 04, 2017, 11:29:52 pm
by mdavlee .
0 Replies
130 Views
Last post June 11, 2018, 11:27:52 am
by Cut4fun .