Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => McCulloch => Topic started by: Brampton Bodger on March 19, 2017, 04:54:00 am

Title: McCulloch 335 - Jammed ? Help required
Post by: Brampton Bodger on March 19, 2017, 04:54:00 am
Hi.

New to the forum and a bit of a novice when it comes to repairs on chainsaws so please bear with me !. My McCulloch 335, which has served me brilliantly is playing up. It starts fine but when you try to throttle it, it sounds  as if something is jammed in the blade. But  the blade is free, and not jammed, but it does not rotate. The guard on the front (above your left knuckle) is also in the correct position.

Any ideas on how to solve this ?

Thanks in advance

Ed
Title: Re: McCulloch 335 - Jammed ? Help required
Post by: Cut4fun . on March 19, 2017, 09:49:56 am
Check and see if clutch cover brake is on or if brake band is on around the clutch drum.

Take the clutch cover off, bar and chain off and see if clutch turns freely by hand. 
Title: Re: McCulloch 335 - Jammed ? Help required
Post by: Cut4fun . on March 19, 2017, 09:52:04 am
Looks like band is in cover Mcculloch 335 435 440 IPL  http://www.barrettsmallengine.com/partslist/mccullochmac335maccat435.pdf
Title: Re: McCulloch 335 - Jammed ? Help required
Post by: pete on March 21, 2017, 05:18:07 am
check that the drive sprocket has still got all its teeth/not worn out
Title: Re: McCulloch 335 - Jammed ? Help required
Post by: Brampton Bodger on March 22, 2017, 07:41:13 am
Hi

Many thanks for all the replies on this, which have been most useful. The drive sprocket is broken- the bit that the chain fits round. So i want to replace this.

I've looked at some You Tube videos and have got as far as the clutch assembly. This will not come loose to replace this sprocket. I am using a hammer and screwdriver, hitting the curved bits of metal on the outside of the spring and am hitting itclockwise but it will not budge. I have a rope in where the spark plug lives. The clutch itself and outer casing spins freely.

Any further advice gratefully received.

Thanks again.
Title: Re: McCulloch 335 - Jammed ? Help required
Post by: fossil on March 30, 2017, 07:32:36 pm
The threads on the clutch are left hand so, turn the clutch clockwise to get it off.