Question about McCulloch 16 Inch Gas Chain Saw MCC1635AK

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Can't get chain to move. Engine starts ok but seems to be burning clutch. Has not been used for 18 months.

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Hi there, I suspect that the chain brake has been activated. To release it, pull back the front guard (in front of the front handle) until it clicks. The chain should now be free to move. Happy sawing !

Posted on Nov 07, 2010

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1 Answer

Why won't chain move when I pull trigger?


Hello sounds like you have the chain too tight or your clutch is burned up and not working. Needs to be service by repair person.

Nov 17, 2015 | Poulan Pro Pp4218av 18" Gas Chain Saw...

1 Answer

After a few months stored in the garage, went to use my chain saw today. it has started ok, and the engine will rev a bit. but the chain will not turn. just saw a whiff of smoke from the area at the back...


check to see if there is any debree in the cahin guard on the side if not the clutch will be stuck you will need to take it to a small engine repair shop make sure that the shop rate is not too high and the quality of work is good also make sure the repair does not exceed the value of the saw...if it is the clutch it should not take more than 1 hr to replace....

Jul 21, 2011 | Echo CS400 18" Chain Saw

1 Answer

The engine starts but the chain does not move even when the throttle is applied and then it starts to smoke the whine does not sound like it has full power either


Can you move the chain by hand? If not, the chain brake may be set or damaged so that the chain cannot move. Is the chain adjusted extremely tight? Is bar oil getting to the chain? The smoke is probably coming from the clutch which is trying to drive the chain. The chain should be adjusted so that the chain just comes up to the lower bar edge, but allows free turning of the chain by hand. Get back to us if you need further help.

Nov 03, 2010 | Troy-Bilt Mtd Troy Bilt TB4218CC 42cc 2...

1 Answer

After a few months in storage, my saw will start, but the chain seems stuck - I can['t move it with my fingers, and when I gas up the engine, the chain doesn't move & the engine stalls. There's no...


Release the chain tension adjuster and push the bar inward to make sure it moves. This is an auto-set tension adjustment and should set itself so that the chain can be be moved by hand. The chain oil on the bar may have gelled enough to prevent chain movement. A spray of WD-40 around the chain perrimeter would probably loosen the chain as well. Hope this helps!

Aug 15, 2010 | Husqvarna 450 e-series 18" Chain Saw

1 Answer

I have a poulan woodshark p 3314wsa it starts and runs, but chain doesn't turn


Does the chainsaw seem to rev up without any resistance, or does it bog down as you push the throttle? If it revs up quickly, then it sounds like the clutch plates may be frozen - usually due to rust. If it boggs down, then the chain and/or clutch housing are frozen or stuck somewhere.

The chain drive uses a centrifugal dry friction clutch with two weighted plates that are spring loaded. The springs keep the plates disengaged from the clutch housing to allow the engine to spin freely at an idle (or slip when the chain slows down due to the blade binding).

When you press the throttle, the engine revs up and the higher RPMs create centrifugal force causing the clutch plates to push outward - fighting against the springs, and begin creating friction on the inside of the clutch housing. If rust prevents the clutch plates from moving out to cause the necessary friction, the clutch housing (and drive gear which is permanently affixed to the housing) won't spin and the chain won't move.

With the engine OFF and cool...first take a thick towel or rag and place it over the chain with the engine switch in the OFF position. Try to move the chain in the normal rotation (top forward, bottom backward) to see if the chain moves freely or if it is stuck in position. If it does move, then take off the chain cover and then get a can of PB Blaster and spray the clutch plates and springs. Give it an hour or so and then take a rag and wipe off the excess and reassemble and try it. The excess PB Blaster will burn off with the heat of the clutch and the rust will no longer be a problem.

If the chain won't move, then somewhere along the drive the chain or clutch housing are stuck. Look for a bend or kink in the bar where the chain rides.

May 29, 2010 | Garden

1 Answer

I have a Poulan 18" chainsaw. Dispite my best efforts to tighten the chain, it keeps slipping off of the bar. I can use it for about 30 seconds, then the chain slips off.


Make sure the chain brake is off (pull it toward you), then remove the bar mounting nut(s)/bolt(s) and the remove the side cover, bar, and chain. Clean the oil passages in the rear of the bar including two small passages that run from the larger holes out to the chain groove on each side. Clean the entire chain groove and make sure the end sprocket turns freely and is well oiled. Clean the engine face where the bar fits, then start the engine. Oil should ooze out of a small port in the engine case. If ok, then lay out the chain so that it can be inspected for bent links, dry/sticking joints, or missing/badly worn drive teeth. Inspect the sprocket on the clutch outer drum component for wear or damaged teeth. Make sure the pitch of the chain teeth match those of the drive sprocket (is this a new chain?). Check the hub bearing of the clutch drum for obvious wear. If all looks good, fit the chain around the clutch sprocket, then slip the bar into the the engine mounting space and work the chain over the entire bar. When setting the outer cover, make sure the adjuster tang fits into the related bar hole, then attach the clamp nut(s)/bolt(s), run up finger tight. Use the adjuster to set the chain tension--it should just pull the lower part of the chain up to the bar plus a little more. Check that you can move the chain by hand without any binding, then tighten the clamp bolts/nuts firmly. Recheck that the chain is properly tensioned. If not, re-loosen the clamp fasteners and re-tension the chain. When the clamp fasteners are tight, the tension must be rechecked. Hope this long-winded response helps!

May 13, 2010 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

Saw starts but blade wont turn


The chain must be free to move by hand--adjust as necessary. It could be that it is not being oiled properly. The chain sprocket (gear) is part of the clutch assembly and probably needs to be replaced if the chain is moving freely. The internal component of the clutch must be firmly attached to the engine crankshaft.

Jul 02, 2009 | Garden

1 Answer

Sears 18" chainsaw i just finished cutting some wood and went back to cut some more the chain does not move I took the cover off and tried turning the sprocket thing it doesnt move this saw is only a few...


Assuming you can pull the starter cord and the engine turns freely (e.g. engine not frozen due to improper fuel mixture), check for debris near the clutch wheel.  Also, loosen the bar tension screw to see if the chain and clutch can move.
If you pull the starter cord and the chain moves, your clutch may either be jammed in the engaged position or may have gone out.
Make sure that you don't have the chain tension too tight and that you always have plenty of bar oil.

Jan 24, 2009 | Garden

2 Answers

I have an Echo CS-440 18" chain saw and the chain came off. Now that I have put it back on, it won't move either by hand or when the engine is running. Help


OK.  This is simple. Either the chain brake is engaged or the chain is too tight. Start by pulling back on the chain brake toward you.  There should be a "click" if the brake was released.  If the chain is still immovable, try resetting the chain tension. 1. remove the spark plug wire 2. loosen the two clutch cover nuts 3.hold the bar nose up and loosen the tension adjustment screw until the chain moves freely without becoming loose. 4. tighten both clutch cover nuts with the bar held up. 5. Pull the chain around the bar by hand.  Loosen the adjustment if you feel tight spots. 6. When the chain is properly tensioned,tighten clutch cover nuts securely.  Do not overtighten! 7.  Check chain brake operation and release. 8. Replace spark plug wire and operate  saw.
Hope this solution will Fixya.

Jan 10, 2009 | Husqvarna Chain Saw 20" Bar

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