CAM Markings

Tiny
WFHORTON
  • 2002 DODGE INTREPID
  • 98,000 MILES

My 2002 Intrepid 2.7L left camshafts have two different timing marks on each cam one is a yellow arrow the other is a dot that is embossed (just like the right side). Which marks are used to time the camshafts before putting on the timing chain?

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Thursday, February 2nd, 2012 AT 8:24 PM

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Tiny
HMAC300
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  • 49,815 POSTS

It should look like the pic i'm sending. Also when doing this always turn by crankshaft. Also crankshaft must be aligned wit timing mark BEFORE turning cams over to insure no piston/valve damage.

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Thursday, February 2nd, 2012 AT 8:37 PM
Tiny
RASMATAZ
  • MEMBER

See below

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+1
Thursday, February 2nd, 2012 AT 8:42 PM
Tiny
BIGB1029
  • 2002 DODGE INTREPID
  • 146,000 MILES

Timing belt broke trying to line up the left camshaft but wont line up? I have no compression are the valves bent.

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Wednesday, December 28th, 2016 AT 10:21 AM (Merged)
Tiny
ASEMASTER6371
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  • 25,500 POSTS

If you have no compression yes, they are bent.

Dont need to line it up now, the heads have to come off for repair

Roy

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Wednesday, December 28th, 2016 AT 10:21 AM (Merged)
Tiny
EASTSIDEAUTOREPAIR
  • 2002 DODGE INTREPID

Engine Mechanical problem
2002 Dodge Intrepid 6 cyl Two Wheel Drive Automatic

Crank timing mark is "lined" with cam gear timing mark. When motor is turned 1 full cycle, timing marks do not stay "lined." Additionally, there is no compression at all, except for 1 cylinder. I have heard that it takes 60 revolutions before the timing marks are "lined." (1) engine has been disassembled and we are reassembling. (2) All fluids have been drained. Any help on timing and compression is greatly appreciated. Thank you!

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
RASMATAZ
  • MEMBER

It takes 720degs to complete the engine 4 strokes in each cylinder.

Did you put the engine no.1 piston on its compression stroke before you align the cam and crank.

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
EASTSIDEAUTOREPAIR
  • MEMBER

Yes, engine no. 1 piiston on its compression stroke before aligning the cam and crank. All cylinders were presurred tested and no leaks detected. Assembly of engine was completed.

Car would not start when engine cranked. IT STILL SOUNDS LIKE IT HAS NO COMPRESSION.

Are there any codes that need erasing? Any other tests/checks we need to try? Thanks for your help.

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
RASMATAZ
  • MEMBER

If you're getting the correct fuel pressure and fuel is being delivered into the cylinders and with proper ignition spark-it points back to valve and ignition timing problem.-Have you inspected the T/timing belt?

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
RMITCH37
  • MEMBER

I was wondering if you ever found what was causing this? I'm having the same problem to! Thanks

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
CARADIODOC
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  • 28,760 POSTS

Think about this logically. If it really took 60 revolutions for the timing marks to line up again, the cylinder would only produce a power pulse once every 60 revolutions. That would be really fantastic as far as fuel mileage is concerned, but you'd be pushing the car by hand.

Did you notice that the camshaft sprockets are not 60 times bigger than the crankshaft sprocket? In fact, the cam sprockets have exactly twice as many teeth as the crank sprocket. Reread what rasmataz said about 720 degrees. That's two revolutions of the crankshaft. Your timing marks will line up after every two revolutions of the crankshaft.

Did you use the special spacer when you installed the crankshaft position sensor? The air gap is critical. Without the spacer, it is possible on some engines to push the sensor in too far. It will hit the spinning flex plate and be destroyed. Instant no-start.

Caradiodoc

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
RALPHSTEIG
  • 2000 DODGE INTREPID

Engine Mechanical problem
2000 Dodge Intrepid 6 cyl Two Wheel Drive Automatic 80000 miles

What is the secret to timing the 2.7 engine sfter replacing the water pump. I followed all the instructions in a chilton manual, but only succeding to wipe out all 12 intake valves.
Please I need help and discriptions for this job
Thanks R. Steig

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
SERVICE WRITER
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Ouch. That hurts the attitude.

One thing is you can't take the tensioner out and put it back in without the chain moving a tooth on the crank, you have to pull the right side valve cover and hold tension on the tensioner guide, the next thing you will have to look at is how far out the tensioner is, this one was too far to hold tension while cranking(the chain was stretched) so after replacing all the intake valves and chain and I found a good way to set the tensioner, follow the installation but make sure you are collapsing the tensioner then releasing it partily out while submerged in a little container of oil so the oil would be pulled in the little hole in the nose of the tensioner. Otherwise during startup the chain could jump.

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
RALPHSTEIG
  • MEMBER

A detailed diagram of all the settings for timing would be nice so your answer was of no help as I know about the tensioners

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)
Tiny
SERVICE WRITER
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Ain't you special...


http://www.2carpros.com/forum/automotive_pictures/30961_int_1.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_int1_3.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_int_2.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_int2_2.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_int1_4.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_int3_2.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_int4_1.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_int5_1.jpg

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Wednesday, December 28th, 2016 AT 10:22 AM (Merged)

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