I have followed all the steps taking off cleaning and replacing the clutch taking out the spark plug and putting some nylon rope into the cylinder and tightening but when i start the engine the clutch is unscrewing. Can you help me please?
You should never under any circumstances run the saw with the bar, chain and brake not connected, the clutch is a left hand thread and self tightening, run the saw at full revs and put the brake on, this will tighten the clutch.
SOURCE: HOW TO TAKE THE MAGNITO OFF OF A 306A POULAN CHAINSAW
I can't find your model number at Poulanpro.com but in all the chainsaws that I have worked on the starter rope comes in the cover which is held on by usually 4 or so screws. I suggest that you go to the site I listed and look at the 42 CC engine (they have a parts manual for it) before removing anything else. Let me know if I can help further.
SOURCE: Broken Pull String
Yes, it is possible that the spring needs to be pre-tensioned. its also possible that something was put together a little out of alignment, or some part is too tight and its too hard for the spring to wind in the chord. try to reassemble the chainsaw with a couple more turns on the spring and see if that helps.
paul
SOURCE: Chainsaw will not start
Remove muffler and check for carbon blockage.
If that is ok check crankshaft seals for leakage.
SOURCE: 46 cc Sears/Poulan chainsaw will not start
Four things I can think of:
1) There is a short in your spark plug wire. When you bend it to connect the plug in the machine it allows the exposed cable to contact the engine block. Examine the wire all the way to the coil.
2) Flywheel key is sheared ( you obviously know how to take off the flywheel since you checked the seals).
3) Flywheel air gap is not set correctly. Loosen the coil. Put the cover of a notebook or the cardboard piece of a cigarette pack between the magnetic portion of the flywheel and the coil. Tighten the coil down. This will get you the proper gap.
4) Your cylinder/piston or rings are scrubbed out. Even though it passed a compression test, on rare occasions it will loose compression only when it fires. So do the following:
Remove your exhaust manifold. Look into the cylinder with a flash
light. You are looking for scratches. Anything larger then a light
fingernail is definite proof you need a new cylinder/piston assy.
If it passes that test do the following:
Pour
mixed fuel straight into your cylinder until 1/4 full. Slowly pull your
saw over while looking into the cylinder. If you see bubbles after the
ring/rings go by then you need a new cylinder/piston assy. On rare
occasions if no scratches are present on the cylinder wall or piston,
you may be able to change just the rings.
First if you can get a inline spark tester so you can see if your getting spark with the plug installed.
SOURCE: how do you replace spring on a poulan chainsaw
A Poulan "P4018WT Gas Saw Type 1" IPL follows (may not be your saw):
http://www.ordertree.com/modelinfo/PWE/P4018WT-Gas-Saw-Type-1/75.P4018WT-Gas-Saw-Type-1.1.59.1.html
If yours is not a "Type 1" it can be found here:
Poulan.com
http://www.ordertree.com/modelinfo/POULAN-WEED-EATER/75.59.html
The dash number of your serial number is the type.
If the spring is unwound:
Recoil Spring Rewind
I invert and secure the starter housing and rewind the spring large coil to small (need eye protection and both hands). I am 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 rewound. Then bend slightly the inner most part to engage the starter spool. The video explains how to tension the spring.
R² Starter Rope by SmallEng.com
http://www.youtube.com/watch?v=eRyy3MlsjVo
If you have more questions or need additional help please reply below and I will get back to you. Good Luck. HTH
Lou
Thank You for using FixYa.
Pull off the spark plug's rubber boot. Unscrew the spark plug with the socket wrench. Remove the spark plug and insert the piston stop tool into the hole. Remove the starter cover and turn the flywheel by hand until the piston contacts the stop tool.
Unscrew the brake band's cover screws with the star Allen wrench. Remove the brake spring from its anchor pin with the end of the screwdriver. Caution: this spring is under a lot of pressure and may pop out unexpectedly. Remove the brake band from its seat on the crankshaft.
Remove the E-clip that holds the washer, sprocket and clutch drum to the crankcase. Pull them off the crankshaft. Unscrew the clutch's bolt with the socket wrench. Loosen the bolt clockwise and remove from the crankshaft. Pull off the washer. Remove the clutch shoes and the clutch spring.
Twist the worm and drive spring clockwise and remove them from the crankshaft. Unscrew the oil pump's mounting screws. Take the oil pump off its seat and remove from the crankshaft. Remove the bottom washer.
Disassemble the oil pump. Knock out the spring pin on the bottom with a punch. Pull the bottom control bolt from its hole and remove the O-rings. Pull the end plug off housing and remove the pump piston, spring and washer.
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Thanks Andrew appreciate it, very helpful and successful.
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