3.5 cam timing marks - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
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post #1 of 8 (permalink) Old 09-22-2008, 03:08 PM Thread Starter
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3.5 cam timing marks

Gentlemen I am in the process of installing my timing belt , water pump ETC and have a question. If the cam marks fall between the two dots is this sufficient to maintain timing. I have been trying to get them exact for the past 2 hours and seem to always fall off center a tooth . Thank you in advance .
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post #2 of 8 (permalink) Old 09-22-2008, 07:40 PM Thread Starter
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post #3 of 8 (permalink) Old 09-22-2008, 07:56 PM
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Exact, as in exactly centered? The best you can do is get it on the tooth that will make it the most centered.
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post #4 of 8 (permalink) Old 09-22-2008, 08:32 PM
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Exact, as in exactly centered? The best you can do is get it on the tooth that will make it the most centered.
..but, should be closest to the mark on your right when facing the engine to get it as close to TDC as possible.
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post #5 of 8 (permalink) Old 09-22-2008, 10:29 PM Thread Starter
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Well I ended up with my mark more to the left (but within the two dots) on both cams (facing the engine ) will this create a problem ? I really hate to tear into this again but if needed I will. Thank you all for your assistance.
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post #6 of 8 (permalink) Old 09-22-2008, 11:43 PM
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You can also use a dial indicator attached to a rod in the #1 spark plug hole to find exact TDC. Usually only necessary when the cam pulley or head is removed. Its done along with the cam holding tools, and is the most precise way of timing it.
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post #7 of 8 (permalink) Old 09-23-2008, 09:00 AM
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Well I ended up with my mark more to the left (but within the two dots) on both cams (facing the engine ) will this create a problem ? I really hate to tear into this again but if needed I will. Thank you all for your assistance.
with it to the left, it can cause a cam/crank misalignment that the ECM may not like.
The engine will run up to about 1200 RPM, but may misfire after that.
There is only a tolerance of about 1 to 1.5 degrees variance.
Only way to know, without a DRBIII to measure it, is to drive it and see if it misfires or has a noticable lack of power.
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post #8 of 8 (permalink) Old 09-23-2008, 07:53 PM Thread Starter
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Well I "Dodged" a bullet as it fired right up and drives like it always did despite not getting the cam marks exactly where they were prior. The only noticable difference is a slight whine which I would assume is the new belts I installed along with the timing belt. Actually I was surprised how big of a pain this job was . I have a old Chevelle and it is all gravy compared to working on this car . Thank you all for your advice and comments and hopefully I will get the same miles (97,000) out of this waterpump/timing belt.
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