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Honda ctx200 fresh rebuild ran a couple times but started stalling backfiring when warmes up. took cover off found cam out by one tooth. adjusted and out together now it wont start at all. help please

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Is it a dual cam engine? If so make sure can gear marks are aligned. Verify distributor is installed correctly set firing order is correct.only two things cause backfiring. Incorrect timing or incorrect plug wire position at distributor cap

Posted on Nov 19, 2014

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Posted on Jan 02, 2017

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john631068
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SOURCE: Timing marks on 1999 Ford Ranger 2.5L.

Rotate the engine so that No. 1 cylinder is at TDC on the compression stroke. Check that the timing marks are aligned on the camshaft and crankshaft pulleys. An access plug is provided in the cam belt cover so that the camshaft timing can be checked without removal of the cover or any other parts. Set the crankshaft to TDC by aligning the timing mark on the crank pulley with the TDC mark on the belt cover. Look through the access hole in the belt cover to make sure that the timing mark on the cam drive sprocket is lined up with the pointer on the inner belt cover.

  1. Loosen the alternator retaining bolts and remove the drive belt from the pulleys. Remove the water pump pulley.
  2. Loosen and position the power steering pump mounting bracket and position it aside.
  3. Remove the four timing belt outer cover retaining bolts and remove the cover. Remove the crankshaft pulley and belt guide.
  4. Loosen the belt tensioner pulley assembly, then position a camshaft belt adjuster tool (T74P-6254-A or equivalent) on the tension spring rollpin and retract the belt tensioner away from the timing belt. Tighten the adjustment bolt to lock the tensioner in the retracted position.
  5. Remove the timing belt.

To install:
  1. Install the new belt over the crankshaft sprocket and then counterclockwise over the auxiliary and camshaft sprockets, making sure the lugs on the belt properly engage the sprocket teeth on the pulleys. Be careful not to rotate the pulleys when installing the belt.
  2. Release the timing belt tensioner pulley, allowing the tensioner to take up the belt slack. If the spring does not have enough tension to move the roller against the belt (belt hangs loose), it might be necessary to manually push the roller against the belt and tighten the bolt.

The spring cannot be used to set belt tension; a wrench must be used on the tensioner assembly.
  1. Rotate the crankshaft two complete turns by hand (in the normal direction of rotation) to remove the slack from the belt, then tighten the tensioner adjustment and pivot bolts to specifications. Refer to the necessary illustrations. Make sure the belt is seated properly on the pulleys and that the timing marks are still in alignment when No. 1 cylinder is again at TDC/compression.
  2. Install the crankshaft pulley and belt guide.
  3. Install the timing belt cover.
  4. Install the water pump pulley and fan blades. Install upper radiator hose if necessary. Refill the cooling system.
  5. Position the alternator and drive belts, then adjust and tighten it to specifications.
  6. Start the engine and check the ignition timing. Adjust the timing, if necessary.

Posted on Nov 25, 2009

  • 37 Answers

SOURCE: 91 toyota celica 5s-fe engine hard start

if it ran fine before belt change, you maybe off a tooth,I've been off a tooth with same engine had same symptoms along with erratic acceleration and poor gas mileage. Took off top cover, lined up no.1 tdc. and I was off 1 tooth at camshaft hole. was able to adjust without dismanteling everything. Loosen idler and you can get enough play to turn cam one cog. hope this helps.

Posted on Jan 03, 2010

  • 10 Answers

SOURCE: 2000 sebring won't start

Crank Sensor is the likely issue. It does not throw a code. Key indicator is the call stalls all the time. R&R sensor.

Posted on Aug 02, 2010

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1 Answer

Runs good cold,runs bad when it warms up


misfire is bad timing
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bad timing causes backfiring..

did you put the spark wires back like you found them or better the correct firing order? if not it backfires.
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Let me know what they find, Honda Al

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