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Removing flywheel and clutch assembly ms 250 stihl

I have a stihl ms 250. i am trying to get the flywheel and clutch assembly off. i have a scored piston the needs replaced. any help??

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You need a piston stop, watch part of this to explain use:
http://www.youtube.com/watch?v=cdqkIuVNUQc
Make one with starter cord or rope:
I suggest a length of starter cord or nylon rope be used instead of the piston stop (retain 6" ± so you can remove it). Make sure the piston is near the top of the cylinder before feeding the cord or it can fall through the exhaust port and damage the piston as it rises. HTH
Lou

Posted on Nov 19, 2009

Testimonial: "Thanks for your help, I got the clutch assembly off with the rope as a cylinder stop. But the flywheel is going to require a puller i think."

  • dontbother10
    dontbother10 Nov 19, 2009

    Trying to hold the flywheel will break cooling fins... an impact wrench will destroy the woodruff key slot. Please watch the film... It will save you time $ and headaches! Lou

    I recommend a low cost puller on the flywheel. That is what chainsaw shops use.

  • dontbother10
    dontbother10 Nov 19, 2009

    I'm not thinking, Bill, The clutch is a left handed thread. Tighten it to remove it. Lou

    The entire film mentions the reverse thread and I usually post a more complete answer for drive link replacement. I'm being distracted by some of the less than sterling suggestions you are getting.

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Switching an 028 wb from points and a condenser to an electronic ignition coil a couple wires go under tthe flywheel should i use a puller to remove the fly wheel or is there a better way?

Posted on Jan 22, 2010

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You can try by holding the recoil side, and wrenching it off. but they are not easy without a impact wrench. If you use one it will spin right off !

Posted on Nov 18, 2009

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How to fit a new clutch into a ford escort 1300cc 1994


1991-96 Models
See Figures 1, 2 and 3
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle.
  3. Remove the transaxle assembly.
  4. If the clutch assembly is to be reused, matchmark the pressure plate and the flywheel so they can be assembled in the same position.
  5. Install flywheel holding tool T84P-6375-A or equivalent, in a transaxle mounting hole on the engine and engage the tooth of the holding tool into the flywheel ring gear.



0900c1528008df86.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 1: Install a flywheel holding tool in a transaxle mounting hole on the engine, and engage the tooth of the tool into the flywheel ring gear
  1. Loosen the pressure plate-to-flywheel retaining bolts one turn at a time, in a crisscross pattern, until the spring tension is relieved, to prevent pressure plate cover distortion.
  2. Support the pressure plate and unfasten the retaining bolts. Remove the pressure plate and clutch disc from the flywheel.

If the flywheel shows any signs of overheating (blue discoloration) or if it is badly grooved or scored, it should be refaced or replaced.
  1. Inspect the flywheel, clutch disc, pressure plate, release bearing, pilot bearing and the clutch fork for wear. Replace parts as needed.

To install:
  1. If removed, install a new pilot bearing using a suitable installation tool.
  2. If removed, install the flywheel. Make sure the flywheel and crankshaft flange mating surfaces are clean. Tighten the flywheel retaining bolts to 71-76 ft. lbs. (96-103 Nm) on the 1.8L engine or 54-67 ft. lbs. (73-91 Nm) on the 1.9L engine.
  3. Clean the pressure plate and flywheel surfaces thoroughly. Position the clutch disc and pressure plate into the installed position and support them with a dummy shaft or clutch aligning tool. If the clutch assembly is being reused, align the matchmarks that were made during the removal procedure.
  4. Install the pressure plate-to-flywheel retaining bolts. Tighten the bolts in the correct sequence to 13-20 ft. lbs. (18-26 Nm). Remove the alignment tool.



0900c1528008df87.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 2: Position the clutch disc and pressure plate into the installed position and support them with a clutch aligning tool


0900c1528008df88.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 3: Tighten the pressure plate-to-flywheel retaining bolts to specification in the sequence illustrated
  1. If the release bearing was removed, lubricate the release fork where it contacts the bearing and install the bearing in the fork.
  2. Install the transaxle assembly.
  3. Lower the vehicle.
  4. Bleed the hydraulic clutch system, if needed.
  5. Connect the negative battery cable.
  6. Road test the vehicle and check the clutch for proper operation.

Sep 30, 2009 | 1994 Ford Escort

1 Answer

Wanting to replace the clutch because it is slipping.


Hope this helps. Best of luck to you!
Greg

Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable.
  3. Remove the transaxle.
  4. Gradually loosen the clutch pressure plate bolts, in a crisscross pattern. Support the pressure plate and remove the bolts. Remove the pressure plate and clutch disc.
  5. Inspect the pilot bearing. If it is worn or damaged and does not turn easily by hand, remove it using a puller/slide hammer.
  6. Check the flywheel surface for scoring, cracks or burning and machine or replace, as necessary.
  7. Install a flywheel holder to keep the flywheel from turning. Loosen the flywheel bolts evenly and gradually in a crisscross pattern. Remove the flywheel.
  8. Inspect the clutch release bearing for wear. Replace it if it sticks or does not turn easily.
  9. Inspect the release fork for wear or damage and replace as necessary.
To install: 7923kg32.gif Structural view of the hydraulic clutch system
7923kg33.gif Exploded view of the clutch assembly
Click to Enlarge
7923kg34.gif Flywheel tightening sequence
7923kg35.gif Pressure plate tightening sequence

  1. Lubricate the release fork fingers and pivot with molybdenum grease and install in the release fork boot.
  2. Install the clutch release bearing on the release fork.
  3. Install a new pilot bearing in the flywheel, if removed.
  4. Be sure the flywheel mounting surface and the crankshaft or eccentric shaft mounting surfaces are clean. Remove any old sealant from the flywheel bolt hole threads and the flywheel bolts.
  5. Install the flywheel.
  6. Apply sealant to the flywheel bolt threads and install them hand-tight. Install the flywheel holding tool. Tighten the bolts, in a crisscross pattern, to 71–76 ft. lbs. (96–103 Nm).
  7. Apply a small amount of molybdenum grease to the clutch disc splines and install the clutch disc on the flywheel, spring side toward the transaxle. Install a suitable alignment tool in the pilot bearing to position the clutch disc.
  8. Install the clutch pressure plate, aligning the dowel holes with the flywheel dowels.
  9. Install the pressure plate bolts and gradually tighten, in a crisscross pattern to 20 ft. lbs. (26 Nm). Remove the alignment tool.
  10. Install the transaxle.

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