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N eed parts for stihl 034 AV electronic quickstop

Need cylinder head piston /rings

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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MrScary66613
  • 1990 Answers

SOURCE: 2004 Interceptor, will replacing the heads fix?

Make sure to Replace the Rings also and they will be Fine unless the Heads are Warped.

Posted on Jan 25, 2009

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SOURCE: blown head gasket. will rebuilt .uch pressure on pistons and rings, causing failure

The conventional wisdom is that this is a possibility with high mileage engines. But the option of just rebuilding the head versus the entire engine would make the choice easy for me -- I'd rebuild the head... I would say the probability that a new head would damage the engine is kinda low.

Posted on May 10, 2009

  • 905 Answers

SOURCE: 2000 camry. blown head gasket (daughter drove car

Yes, you can, but not exactly recommended. If you are going to go that deep into it, then might as well do everything else. However, being unemployed tends to have a negative impact on the wallet....

I suspect it is more than just rings. I think that the walls have been scored badly as well. You may be able to use a borescope to take a peak into the cylinder through spark plug hole. Move the piston to bottom of stroke, and see what you can see. If scarred, much work will be needed. If hatches look alright, then you might be able to get away with just rings.

What kind of compression are you getting on #1 vs #2? This also might be a blown headgasket into an oil passage, or the head (perhaps block?) is ever so slightly warped in this area.

Posted on Aug 29, 2009

Testimonial: "Thanks for the quick response. Very much appreciated your input, all makes sense and got my mind on the right track again. Thanks"

postings909
  • 130 Answers

SOURCE: blown piston rings

WHATS THE EXACT PROBLEM AND ILL ANSWER YOU WITH YOUR ANSWER........

Posted on Jan 22, 2010

murf427
  • 336 Answers

SOURCE: 1999 Yamaha Kodiak Front Disc Brake - Rebuilt master cylinder with new parts. Replaced orings on piston in front caliper and bleed brakes using new fluid. The piston will not retract. What is proble

The brake hose is clogged. When under pressure from applying breaks, the piston is forced tight to the rotor. When released the fluid will not return through the hose because there is no real pressure. Replace the hose.
murf427

Posted on Aug 01, 2012

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1 Answer

What parts are needed to replace piston rings while engine is in the car


Head Gasket
Rocker cover gasket
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Apr 25, 2016 | Cars & Trucks

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Engine oil coming up thru #4 spark plug hole


you have a bad head gasket or a crack in the block or a bad valve seal

Mar 15, 2015 | Cars & Trucks

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Compression cylinder low #2 and #3 cylinders.


there are only four possibilities left:
1: valves are not fully seating - adjust rocker arm / cam
2: piston rings are bad - replace rings
3: holes in pistons - replace
4: cylinders out of round - most complicated repair, bore / machine cylinders and replace piston rings with oversized rings.

of course you could just have 'gunk' on the valves preventing full closure........

Jul 23, 2014 | 2001 Hyundai Tiburon

1 Answer

Why is there no compression in engine on my 1991 mitsubishi pajerno


This has to be because of a mechanical problem in the engine. Possible sources are the timing belt is broken (one indication is the starter spins the engine faster than normal, because the camshaft that opens and closes valves is not turning with the crankshaft), or the head gasket has failed (from overheating as the most likely cause), or badly worn piston rings and/or valves not sealing well (common on high mileage engines).
Compression is built up in the upper part of the cylinder where combustion occurs, so leaks or lost compression are due to valves not sealing, or head gasket that seals the cylinder head to the engine block-sometimes the aluminum cylinder head can warp due to overheating, and the head gasket no longer can maintain a seal. Or also the piston rings are worn so bad that compression will leak past them into the crankcase. For valves or head gasket, the cylinder head has to be removed and repaired. For the rings, the engine has to be rebuilt entirely.
First check if the timing belt is still intact.
.

Apr 02, 2014 | 2002 Mitsubishi Galant

1 Answer

Replace piston rings on beetle


THis job requires a lot of ability and is not a job for beginners. It involves engine out, head off. removal of wear lip at top of cylinders. big ends off , pistons out. Checking ring gap of new rings,checking pistons, assembling rings without breaking them, REplacing pistons,big ends head and gasket. checking cam timing etc. As I said it is not a job for beginners and you will need a lot of expert guidance for the job

Feb 10, 2013 | 2000 Volkswagen Beetle

1 Answer

No compression on cylinder #2 after putting a new (remanufactured) cylinder head and pistons/rings


You did not mention about replacing a piston you said was broken? if you did not there is the cause of you low compression. either way if you did change it out and did not measure the ring end gap and put the right size ring in the hole then it looses compression, if you failed to resurface the cylinder and just put in a set of rings then they wont seat for a while. In addition. length of push rod? was cam follower collapsed? did you change? How about the connecting rod of the piston? the one that was in there more than likely got squashed and isn't coming up to full compression Sounds to me like you need to take the head off again and check out a few more things Sorry!

Sep 06, 2012 | 2002 Jeep Liberty

1 Answer

Have oil in one of the spark plug cylinders what would be causing this ?


broken/worn piston ring(s). Each piston has 2 rings. These can be replaced by the DIY mechanic by
1) removing head of engine (remove head gasket - you'll replace it), then
2) manually wind the engine (with a ratchet wrench & socket) til the piston in question pops up
3) remove both rings (with ring pliers - available from any auto parts store)
4) install 2 new rings (with a ring installation collar - available at any auto parts store)
--- choose ring installation tool to the correct size for your pistons.
5) re-install head of engine (replacing head gasket)

Note that this procedure preserves the engine timing, so you need not reset it.

Dec 27, 2010 | 1997 Toyota Avalon

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

#2 cylinde r head bad. how to repair low compression


First thing you need to do is determine why the compression in that cylinder is low. Four possible causes are 1. blown head gasket 2.bad valve(s) in the head 3. broken compression ring, piston ring land or burned piston. 4. rounded camshaft lobes
One other possibility is a fuel washed cylinder (from leaking injector)
You are going to have to remove that cylinder head and do a thorough internal inspection, possibly involving oil pan and piston removal.
Once the cause has been found you can proceed to make an appropriate repair. Or if the damage is beyond your ability, replace the engine with a used or new one.
There is no quick easy fix to restore compression.

Jun 09, 2010 | 2005 Chevrolet Colorado

2 Answers

Spark to but No compression in 2nd cylinder


The most common cause of your problem would be a sticking or burnt valve the only way to know for sure is to remove the head and check then it will need a valve grind and head machined before replacing you may find it cheaper to hunt around for a good secondhand engine to have fitted in your car.
The head of the piston in each cylinder is designed to compress fuel so that it is combustible (explosive/flamable) when it is ignited by the spark plug. The compression is maintained by O-rings on the piston which do not allow fuel to escape past it. In your case, either an O-ring is damaged or the piston itself isn't working properly and it is not compressing the fuel as it should.
Hope this helps, best regards :)

Nov 21, 2009 | 1995 Ford Escort

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