Question about McCulloch Ms 40 18 Av Chain Saw Misc. Parts Lot

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I have a McCullough MS4018AV chainsaw. Pull starter did not retract and fell apart when I took it off. I have the housing, pulley, and expanded spring. Trying to find the complete starter housing or the parts I need to fix it. Has been apart for a couple years and I appear to be missing some parts, but I can't find a diagram online. Part # on pull cord housing is 9097-310821. Found that on MTD site but it was "unavailable".

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Possible solution. Try Craigs list for a donor, old McCullogh saw of the same model and use the parts

Posted on Mar 17, 2014

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Posted on Jan 02, 2017

dontbother10
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SOURCE: how do i get the pull cord spring back in on a

Recoil Spring Rewind
I invert and secure the housing and rewind the spring large coil to small (need eye protection, both hands and no women around work area!). I'm right handed so I tension the spring enough to insert it inside the previous coil while holding what has already been installed with my left about 180° from my right hand. The tension will hold the spring in the housing once completely inserted. Then bend slightly the inner most part to engage the starter spool. It will require about 2 turns of pretension for it to retract properly. HTH
Lou

Posted on Nov 22, 2009

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Attempted to start unit, second pull, the pull rope seized up and would not release or retract. Approximately a foot of rope hanging loose.


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I invert and secure the housing and rewind the spring large coil to small (need eye protection, both hands and no women around work area!!!). The tension will hold the spring in the housing once completely wound. Then bend slightly the inner most part to engage the starter spool. It will require about 2 turns of pretension to retract properly.
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A new spring can be found here:
Poulan.com
http://www.ordertree.com/modelinfo/POULAN-WEED-EATER/75.59.html

A new spring comes wound tight enough to be dropped into place in the starter housing (Easiest).

I invert and secure the housing and rewind the spring large coil to small (need eye protection, both hands and no women around work area!). I'm right handed so i tension the spring enough to insert it inside the previous coil while holding what has already been installed with my left about 180° from my right hand. The tension will hold the spring in the housing once completely inserted. Then bend slightly the inner most part to engage the starter spool when inserted. It will require about 2 turns of pretension to retract properly.
If you're lucky you can pull the cord out enough for a pretension then slightly raise and wind the withdrawn cord onto the spool. GL
Lou

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2 Answers

Pull cord on chain saw will not retract.


Most of the rancher models are easy to look at. Take the four screws off that hold the starter cover on.When off have a look to see if the pulley is ok or one of the starter dogs(pawls) is jamed . If dogs ok take the screw out of the centre of pulley and remove it ,check for spring tension. if there is just be carful to leave sring in housing. look at spring if broken or out of shape renew it and rope.check for cracks in pulley. When renewing spring and rope get correct rope length and diameter. don't over tension new spring. hop this helps

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1 Answer

Poulan Wild Thing 18 Inch replace starter spring?


A new spring comes wound tight enough to be dropped into place in the starter housing (Easiest).

I invert and secure the starter housing and rewind the spring large coil to small (need eye protection, both hands and no women around work area!). I'm right handed so I tension the spring enough to insert it inside the previous coil while holding what has already been installed with my left about 180° from my right hand. The tension will hold the spring in the housing once completely inserted. Then bend slightly the inner most part to engage the starter spool. It will require about 2 turns of pretension to retract properly.
If you're lucky you can pull the cord out enough for a pretension then slightly raise and add the withdrawn cord to the spool.

Both methods require about 2 turns of pretension to rewind the cord when pulled.
Lou

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