schematics and diagrams: adjusting valve timing

Wednesday, December 5, 2012

Dodge Intrepid 2000 V6 2.7 Timing Marks

Dodge Intrepid Timing marks alignment

Place left side primary chain sprocket onto the chain so that the timing mark is located in-between the two (plated) timing links

Loosely position left side camshaft sprocket over camshaft hub.
Align timing (plated) link to the crankshaft sprocket timing mark

To reset the primary timing chain tensioner, engine oil will first need to be purged from the tensioner

CAUTION: Ensure the tensioner is properly reset. The tensioner body must bottom against the top edge of Special Tool 8186. Failure to properly perform the resetting procedure may cause tensioner jamming.

Install the reset chain tensioner into the right cylinder head.
Position tensioner retaining plate and tighten bolts to 12 N·m (105 in. lbs.)
Starting at the right cylinder bank, insert a 3/8" square drive extension with a breaker bar into intake camshaft drive hub. Rotate camshaft until the camshaft hub aligns to the camshaft sprocket and damper attaching holes. Install the sprocket attaching bolts and tighten to 28 N·m (250 in. lbs.)

See the timing marks diagram shown below:------
2.7 engine timing marks

1 - CAMSHAFT TIMING MARKS

2 - CRANKSHAFT TIMING MARKS

Turn the left side camshaft by inserting a 3/8" square drive extension with a breaker bar into intake camshaft drive hub and rotate camshaft until the sprocket attaching bolts can be installed. Tighten sprocket bolts to 28 N·m (250 in. lbs.)
Rotate engine slightly clockwise to remove timing chain slack, if necessary.
To arm the timing chain tensioner: Use a flat bladed pry tool to gently pry tensioner arm towards the tensioner slightly Then, release the tensioner arm. Verify the tensioner is armed (extends)
Install the timing chain cover, crankshaft damper, and cylinder head covers.
Install camshaft position sensor and connect electrical connector.
Install upper intake manifold. Refer procedure in this section

NOTE: After installation of a reset tensioner, engine noise will occur after initial start-up. This noise will normally disappear within 5 - 10 seconds.

1 - CAMSHAFT TIMING MARKS

2 - CHAIN GUIDE

3 - CRANKSHAFT TIMING MARKS

4 - CRANKSHAFT SPROCKET

5 - CHAIN TENSIONER ARM

6 - CHAIN TENSIONER

7 - CAMSHAFT TIMING MARK

8 - INTAKE CAMSHAFT SPROCKETS

9 - CHAIN GUIDES

10 - WATER PUMP SPROCKET

1 - TENSIONER

2 - CHECK BALL

3 - SPECIAL TOOL 8186

4 - PIN

Check out the relatively help links, with diagrams to troubleshoot the problem: ---

For all types of---------

Timing belt routing diagrams for cars and trucks?

Check the link below:----

http://technoanswers.blogspot.in/2011/10/timing-belt-routing-diagrams-for-cars.html

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For all types of

Drive belt routing diagrams for cars and trucks?

Check the link below

http://technoanswers.blogspot.in/2011/10/drive-belt-routing-diagrams-for-cars.html

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These will help.

Thanks.

Tuesday, February 21, 2012

Valve Adjustment For Toyota?

This detail is for 1989 toyota truck 22re.

The procedure is as follows :----

Removing the valve cover is pretty straightforward. The only thing that is a catch would be the rubber washers that gets squashed underneath of the castle nuts.

For this problem i suggest to .... Use a pair of pliers and a screwdriver to pop these up and off of the four studs.

Once this is done ....Rotate the crankshaft around until it is at 0° TDC. At this point you will find 4 of the rocker arms loose. As I recall it is every other intake valve and two exhaust valves next to each other or vice versa. The intake valves are set at .008 and the exhaust valves are set at .012. I normally set these at .007 and .011 respectively. These were always notorious to clatter. I normally like to set these at moderate engine temperature. In other words not stone cold and not 190°.

Please Make sure while doing this task that the rocker arms are centered over the valves and are not misaligned. I have noticed that on some of these older 22RE engines would wear the rocker arms and it would cause the valve to not be centered with the pin on the rocker arm that pushes it down to open.

Back to the valve adjustment. Once you have these for valves adjusted market with the paint.so you don't confuse them. Then turn the crankshaft 360° until the paint Mark on the timing lines up at TDC 0° again. This will turn the camshaft 180°. This will allow the other valves to be loose. Adjust these valves accordingly.

For this task it takes a box end wrench to crack the lock nut loose then simply adjust the adjusting screw up or down as you move your feeler gauge between the valve stem and the valve rocker adjuster. Making the adjustment is where finesse and seal come into play. You want the adjuster to be just snug enough on the feeler gauge so that it slides in and out with just slight resistance. You should not have to force the feeler gauge in and out. Once you get the adjustment lock the nut down and you're good to go. If you need any further clarification feel free to reply and I will get back to you. When installing the new valve cover gasket apply little silicone sealer at the half Moon rubber washer plugs in the front and back of the cylinder head. Make Sure you do not accidentally knock the half-moon rubber washer out of the back side of the cylinder head.

This detailed procedure will help.

Thanks.

see below latest solved car problems :-----

How the timing marks on valve pulleys line up with crank on 1997 Dodge Intrepid?

http://howtobyme.blogspot.com/2011/11/how-timing-marks-on-valve-pulleys-line.html

How to remove Intake Manifold Tuning Valve?

http://technoanswers.blogspot.com/2012/01/how-to-remove-intake-manifold-tuning.html

Below is the master help link provided to go through belt routing diagram:---

Timing belt, drive belt, serpentine belt, accessory belt, fan belt, engine belt routing diagrams for all types of car models?

http://carbeltrouting.blogspot.in/2012/02/timing-beltdrive-beltserpentine.html