Question about Poulan 16" 38cc Gas Chain Saw P3816

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Breaking new rings during installation in Poulan P3816 chainsaw. Why?

Had to replace broken crankshaft so disassembled and broke ring on piston. Tried to replace ring but keep breaking during installation of piston into cylinder. Anyone know why?

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 211 Answers

SOURCE: i just replaced the piston

the engine is not sealed properly
check the gasket(seal glue)at crankshaft and other gaskets
check the carburator,clean it,inside there is a fine gas filter,check the needle,the diafragm,the fuel pump,the gas tube from the gas tank and the gas filter from inside the tank.

regards Mihai71

Posted on Nov 28, 2008

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  • 211 Answers

SOURCE: My Poulan saw will not fire

Hi

Check if the gas tank cap vent is plugged.Check if the flyweel key is sheared(ignition timing point).Check the fuel filter and air filter.
Hope this helps.

best regards savumihai71

Posted on Dec 19, 2008

steve_lima
  • 181 Answers

SOURCE: piston ring install up or down Poulan 2150 16"

the groves go into the pins.v is up to fit into those pins.the pins go to the intake side of piston

Posted on Jan 07, 2009

  • 97 Answers

SOURCE: Poulan 3314 piston change, special tool needed???

Needle nose pliers. You would normally use a new lip when reinstalling it.

Posted on Mar 17, 2009

dontbother10
  • 2220 Answers

SOURCE: how do i remove piston pin from 375 poulan pro

ArboristSite Chainsaw thread (free to join)
http://www.arboristsite.com/forumdisplay.php?f=9
I suggest you look around the above site. Someone here has been where you are. You can join for free and they are a very helpful group of folk.

Posted on Apr 21, 2010

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2 Answers

Poulan chainsaw will kick back when trying to start it. It has a new cylinder and piston kit just put in it.


Sounds like the timing is too far advanced.
I'd be pulling the flywheel and retard the spark about 2 degrees.

Jan 18, 2016 | Poulan Garden

1 Answer

Poulan pro 16 34cc wont pull gas into piston chamber


A few possibles
  1. Spark assestor screen clogged
  2. Piston Ring struck
  3. Cylinder and piston damage
  4. Metering lever set too low.
To check for struck ring or cylinder damage, remove the muffler and look the exhaust port,

Note: Your engine is not a 34cc but is in fact a 42cc. If you need a cylinder it is now list as NLA but I can give you the optional version and piston part numbers if needed but they need to install as a set.

Feb 14, 2015 | Poulan P3416 16Inch 34cc 2Cycle Gas...

1 Answer

Poulan chainsaw not getting any spark???


you might have a broken wire to the spark plug. Use a meter to check continuity on the wire.

Aug 08, 2014 | Poulan 16" 38cc Gas Chain Saw P3816

1 Answer

Poulan chainsaw not getting any fire?


check to see if your magneto is rusty if so clean with fine grit paper if still does'nt fire may be time to replace the magneto

Aug 08, 2014 | Poulan 16" 38cc Gas Chain Saw P3816

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My poulan pro 295 has very low compression what do i need to do to fix it


Its either seized, or the rings are worn, either way you need to remove the cylinder to see just what has happened, if there is scuffing on the exhaust side of the piston, it will require a new piston, if the cylinder wall will not clean up well enough it will need a cylinder as well, if there is no scuffing replace the piston ring,

Dec 15, 2013 | Poulan Pro Chain Saw 46cc 20"

1 Answer

The engine has blown. I need to replace it or change pistons and rings. How difficult is it to change pistons and rings?


It can be time consuming and the end result may not be desirable if you haven't done it before.
--- The following is just a sample of what to do once the engine is torn down: Pistons and Connecting Rods
  1. Before installing the piston/connecting rod assembly, oil the pistons, piston rings and the cylinder walls with light engine oil. Install connecting rod bolt protectors or rubber hose onto the connecting rod bolts/studs. Also perform the following:
    1. Select the proper ring set for the size cylinder bore.
    2. Position the ring in the bore in which it is going to be used.
    3. Push the ring down into the bore area where normal ring wear is not encountered.
    4. Use the head of the piston to position the ring in the bore so that the ring is square with the cylinder wall. Use caution to avoid damage to the ring or cylinder bore.
    5. Measure the gap between the ends of the ring with a feeler gauge. Ring gap in a worn cylinder is normally greater than specification. If the ring gap is greater than the specified limits, try an oversize ring set. Fig. 5: Checking the piston ring-to-ring groove side clearance using the ring and a feeler gauge tccs3923.gif

    6. Check the ring side clearance of the compression rings with a feeler gauge inserted between the ring and its lower land according to specification. The gauge should slide freely around the entire ring circumference without binding. Any wear that occurs will form a step at the inner portion of the lower land. If the lower lands have high steps, the piston should be replaced. Fig. 6: The notch on the side of the bearing cap matches the tang on the bearing insert tccs3917.gif

  2. Unless new pistons are installed, be sure to install the pistons in the cylinders from which they were removed. The numbers on the connecting rod and bearing cap must be on the same side when installed in the cylinder bore. If a connecting rod is ever transposed from one engine or cylinder to another, new bearings should be fitted and the connecting rod should be numbered to correspond with the new cylinder number. The notch on the piston head goes toward the front of the engine.
  3. Install all of the rod bearing inserts into the rods and caps. Fig. 7: Most rings are marked to show which side of the ring should face up when installed to the piston tccs3222.gif

  4. Install the rings to the pistons. Install the oil control ring first, then the second compression ring and finally the top compression ring. Use a piston ring expander tool to aid in installation and to help reduce the chance of breakage. Fig. 8: Install the piston and rod assembly into the block using a ring compressor and the handle of a hammer tccs3914.gif

  5. Make sure the ring gaps are properly spaced around the circumference of the piston. Fit a piston ring compressor around the piston and slide the piston and connecting rod assembly down into the cylinder bore, pushing it in with the wooden hammer handle. Push the piston down until it is only slightly below the top of the cylinder bore. Guide the connecting rod onto the crankshaft bearing journal carefully, to avoid damaging the crankshaft.
  6. Check the bearing clearance of all the rod bearings, fitting them to the crankshaft bearing journals. Follow the procedure in the crankshaft installation above.
  7. After the bearings have been fitted, apply a light coating of assembly oil to the journals and bearings.
  8. Turn the crankshaft until the appropriate bearing journal is at the bottom of its stroke, then push the piston assembly all the way down until the connecting rod bearing seats on the crankshaft journal. Be careful not to allow the bearing cap screws to strike the crankshaft bearing journals and damage them.
  9. After the piston and connecting rod assemblies have been installed, check the connecting rod side clearance on each crankshaft journal.
  10. Prime and install the oil pump and the oil pump intake tube.
  11. Install the auxiliary/balance shaft(s)/assembly(ies).
OHV Engines CAMSHAFT, LIFTERS AND TIMING ASSEMBLY
  1. Install the camshaft.
  2. Install the lifters/followers into their bores.
  3. Install the timing gears/chain assembly.
CYLINDER HEAD(S)
  1. Install the cylinder head(s) using new gaskets.
  2. Assemble the rest of the valve train (pushrods and rocker arms and/or shafts).
OHC Engines CYLINDER HEAD(S)
  1. Install the cylinder head(s) using new gaskets.
  2. Install the timing sprockets/gears and the belt/chain assemblies.
Engine Covers and Components Install the timing cover(s) and oil pan. Refer to your notes and drawings made prior to disassembly and install all of the components that were removed. Install the engine into the vehicle. Engine Start-up and Break-in STARTING THE ENGINE Now that the engine is installed and every wire and hose is properly connected, go back and double check that all coolant and vacuum hoses are connected. Check that your oil drain plug is installed and properly tightened. If not already done, install a new oil filter onto the engine. Fill the crankcase with the proper amount and grade of engine oil. Fill the cooling system with a 50/50 mixture of coolant/water.
  1. Connect the vehicle battery.
  2. Start the engine. Keep your eye on your oil pressure indicator; if it does not indicate oil pressure within 10 seconds of starting, turn the vehicle OFF. WARNING
    Damage to the engine can result if it is allowed to run with no oil pressure. Check the engine oil level to make sure that it is full. Check for any leaks and if found, repair the leaks before continuing. If there is still no indication of oil pressure, you may need to prime the system.
  3. Confirm that there are no fluid leaks (oil or other).
  4. Allow the engine to reach normal operating temperature (the upper radiator hose will be hot to the touch).
  5. At this point any necessary checks or adjustments can be performed, such as ignition timing.
  6. Install any remaining components or body panels which were removed. prev.gif next.gif

Oct 17, 2010 | 1995 Ford Thunderbird

1 Answer

How do i remove piston pin from 375 poulan pro


ArboristSite Chainsaw thread (free to join)
http://www.arboristsite.com/forumdisplay.php?f=9
I suggest you look around the above site. Someone here has been where you are. You can join for free and they are a very helpful group of folk.

Apr 21, 2010 | Poulan Pro Chain Saw 46cc 20"

1 Answer

Poulan 3314 piston change, special tool needed???


Needle nose pliers. You would normally use a new lip when reinstalling it.

Mar 16, 2009 | Poulan Pro Chain Saw 46cc 20"

1 Answer

Piston ring install up or down Poulan 2150 16"


the groves go into the pins.v is up to fit into those pins.the pins go to the intake side of piston

Jan 07, 2009 | Poulan Wild Thing 2375 18" Gas Chain Saw...

1 Answer

I just replaced the piston ring on my poulan chainsaw it now has good compression but im not getting any gas to the piston area and if i shoot starting fluid to it. it dont even hit and try to start. i...


the engine is not sealed properly
check the gasket(seal glue)at crankshaft and other gaskets
check the carburator,clean it,inside there is a fine gas filter,check the needle,the diafragm,the fuel pump,the gas tube from the gas tank and the gas filter from inside the tank.

regards Mihai71

Nov 26, 2008 | Poulan Wild Thing 2375 18" Gas Chain Saw...

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