Author Topic: Factory Tools?  (Read 1969 times)

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Offline KilliansRedLeo

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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
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Offline 660magnum

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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.
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Offline Bitburger

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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

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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

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Re: Factory Tools?
« Reply #4 on: May 29, 2014, 09:26:21 pm »
What saw is this TJ?
Ron

Offline 660magnum

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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".
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Offline man of stihl

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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

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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
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Offline 660magnum

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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.
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Offline 660magnum

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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 . . .

 

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