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#Post#: 48844--------------------------------------------------
Partner P85
By: wkend lumberjak Date: November 5, 2014, 9:00 pm
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this is a question for a friend of mine he is working on a p85?
and the measurements he is coning up with are 52mm bore and 37mm
stroke that does not add up to 85 cc looked at Acres. It says
36 that doesn't =85 either. Any input would be appreciated.
The math I'm using is pi x radius squared x stroke divided
by1000. ??? ??? ???
#Post#: 48846--------------------------------------------------
Re: Partner P85
By: awol Date: November 5, 2014, 9:31 pm
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Hey Kenneth! I actually have two of these saws here, I wonder if
they are maybe not even P85s? It still does not explain the
Acres listing of 85cc with 52/36 bore/stroke.
#Post#: 48848--------------------------------------------------
Re: Partner P85
By: aclarke Date: November 5, 2014, 9:41 pm
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Displacement should be more like 76ccs
#Post#: 48849--------------------------------------------------
Re: Partner P85
By: awol Date: November 5, 2014, 9:49 pm
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Look what I found:
(HTM) http://chainsawrepair.createaforum.com/partner/partner-55cc-65cc-70cc-85cc-100cc/
Guess I better check the stroke again.
#Post#: 48850--------------------------------------------------
Re: Partner P85
By: awol Date: November 5, 2014, 9:51 pm
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If it has a 40mm stroke, that would make it 84.905cc.
#Post#: 48889--------------------------------------------------
Re: Partner P85
By: SawTroll Date: November 6, 2014, 3:48 pm
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There are several bore/stroke mistakes in the Partner section of
Acres site, as well as several misleading pictures.
The correct stroke is 40mm. ;)
#Post#: 48966--------------------------------------------------
Re: Partner P85
By: wkend lumberjak Date: November 7, 2014, 6:16 pm
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Alan any luck.
#Post#: 49130--------------------------------------------------
Re: Partner P85
By: awol Date: November 10, 2014, 8:29 pm
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Well I chucked the crankshaft up in the lathe, and used the
cross-slide readout to measure. It does have close to a 40mm
stroke, as in 39.875 after transposing from English to metric
measurements.
#Post#: 49368--------------------------------------------------
Re: Partner P85
By: David Young Date: November 17, 2014, 1:04 pm
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hmmmm,
sounds like the stroke is a little short.
don't worry ive been accused of that myself, nothing to worry
about just the way it is......
#Post#: 49571--------------------------------------------------
Re: Partner P85
By: awol Date: November 21, 2014, 6:09 pm
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The P85 runs again! Here is video of it after a basic porting
job and squish adjustment.
(HTM) https://www.youtube.com/watch?v=e3_kPjBetK0&feature=youtube_gdata_player
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