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#Post#: 77901--------------------------------------------------
mac 10 oil pump gasket updated model
By: pete Date: June 28, 2017, 6:13 am
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Have any fellow collectors out there got any NOS updated 10
series oil pump gaskets for sale The ones I am talking about
seem to be made of rubber or similar compound i have found some
on ebay at 13 dollars au which is fine but I balked at the 30
dollars au for postage I sent the seller a message asking about
postage but did not get a reply. I have 2 promac 850s which are
sucking bar oil into the cylinders causing hydralock. I have dug
through some parts saws and found the updated spring clip that
was used with these single screw oil pumps but would like to
upgrade the gaskets, thanks if anyone can help
#Post#: 77902--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: Chainsawrepair Date: June 28, 2017, 12:08 pm
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Link to what you are needing? I dont know macs to know if I find
the right gasket you are looking for.
#Post#: 77913--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: pete Date: June 29, 2017, 3:13 am
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HTML http://www.ebay.com.au/itm/Mcculloch-Chainsaw-Oil-Pump-Diaphragm-Gasket-92818-NOS-10-Series/122422508425?_trksid=p2481888.c100675.m4236&_trkparms=aid%3D111001%26algo%3DREC.SEED%26a
#Post#: 77914--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: Al Smith Date: June 29, 2017, 5:20 am
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I'm not certain if all 10 series use the same gasket .If memory
serves for example the 700 and the 850 pumps are slightly
different . I'll look up the numbers when I get time .
However it might not be the gasket as those pumps have a
tendency to pass oil into the crankcase as they age .Most it's
just a little puff of white smoke on a start up .Others it might
develop into a hydra lock
#Post#: 77921--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: Chainsawrepair Date: June 29, 2017, 2:57 pm
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[quote author=pete link=topic=6515.msg77913#msg77913
date=1498724010]
HTML http://www.ebay.com.au/itm/Mcculloch-Chainsaw-Oil-Pump-Diaphragm-Gasket-92818-NOS-10-Series/122422508425?_trksid=p2481888.c100675.m4236&_trkparms=aid%3D111001%26algo%3DREC.SEED%26a
[/quote]
[quote author=Al Smith link=topic=6515.msg77914#msg77914
date=1498731615]
I'm not certain if all 10 series use the same gasket .If memory
serves for example the 700 and the 850 pumps are slightly
different . I'll look up the numbers when I get time .
However it might not be the gasket as those pumps have a
tendency to pass oil into the crankcase as they age .Most it's
just a little puff of white smoke on a start up .Others it might
develop into a hydra lock
[/quote]
See what Al comes up with then we can look at them Pete.
Those are listed in about 6 places. Sure you cant find some
closer?
#Post#: 77922--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: Al Smith Date: June 29, 2017, 3:09 pm
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You need part number 92818 pump seal(gasket) for 10-10A Sp
81,800 805 Sp 850 and 850 super .The 700 might be the same but
it showed a different part number . BTW I've shipped stuff to Oz
.A few years back by US Airmail a small package was 4 dollars US
and took 4 days to get there .Going from OZ to Ohio it was 7
dollars Australian money .
#Post#: 77927--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: pete Date: June 30, 2017, 5:19 am
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will look around for a few more days locally but so far no luck
when i pulled one of the 850s down still had the paper gasket
had not had the upgrade fitted and the leak had lead to visible
scoring on the piston and a carbon deposit in the exhaust port.
I have found a couple of old saws that have the upgrade kit
which is a piece of spring steel that puts pressure on the pump
in these 1 bolt pumps so would like to get a couple or so of the
later rubber style gasket
#Post#: 77935--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: Nixon Date: June 30, 2017, 2:57 pm
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I can check with an aquaintence for you . I know that he has got
a lot of nos mcculloch stuff . I'm certain that he has complete
oil pump kits . Let me know . He can be a bit hard to approach
,so it may take a while . But ,I did just locate a carb rebuild
kit for his 797 ,and gave it to him . So, I think he'll be
fairly easy to deal with :) .
#Post#: 77947--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: pete Date: July 1, 2017, 6:43 am
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It's only the updated gasket that I am after according to an old
post of Mc Bobs that I found the 850s received an update kit
which was a rbber gasket and a spring steel piece I have a
couple of the steel bits from parts saws
#Post#: 77954--------------------------------------------------
Re: mac 10 oil pump gasket updated model
By: Nixon Date: July 1, 2017, 8:04 am
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I'll see if he has just the updated gaskets by themselves .
Might take a week ,or two to get an answer from him .
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