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#21 (permalink) Old 12-17-2012, 11:11 PM
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One more time.

IF the piston for #1 is at TDC AND the timing marks on the crank are aligned with the block then the bottom end of the engine is in TIME.

Now the top end.

The timing marks for the cams are on the head between the camsprockets. Rotate the cams until the marks line up and the valves are closed(Passenger side). You should be able to install the heads without banging the valves.

Driverside: Line the marks up on the camsprockets like you did on the PS. Do not turn the engine at all until you get the timing belt on properly and tensioned. Once it is on and adjusted GENTLY turn it over 2 revolutions and check the tensioner adjustment. It should after 2 revs come back to TDC with the marks aligned.

If anyone reading this finds a flaw in it speak up.
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#22 (permalink) Old 01-12-2013, 04:54 PM
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ok update: Got everything back together and stated it. IT STARTED, but as it sits in park it runs good, idle is a little little rough. I put it in gear reverse or drive and it pops and skips when the gas is mashed. I drove up the road and same thing. Any sugestions?
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#23 (permalink) Old 01-13-2013, 06:11 AM
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Default Headgasket & Timing

nstoolman1 is correct but sounds that the engine is retarded.
Keep the marks on the CAMshaft the same and you may have to alter the timing marks on the CRANKshaft, the reason being the ignition and ECU timing is taken off the bottom CRANKshaft pulley which is very course because the pulley is too small, 1mm around that pulley will make a lot of differance.

To check everything treat it as a single cylinder and forget the others, turn the engine until the CRANKshaft is dead on TDC look up at the CAMshaft and the lobs should look like "Churchills" V with his fingers

Do not handle the timing belt without gloves for sweat will damage the belt, seen lots of them

PS I dont know if its a double or single camshaft but the V's the same
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#24 (permalink) Old 01-13-2013, 09:03 PM
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It is a DOHC engine.
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#25 (permalink) Old 01-14-2013, 08:07 AM
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Yes it is. 3.5L

ok update: Got everything back together and stated it. IT STARTED, but as it sits in park it runs good, idle is a little little rough. I put it in gear reverse or drive and it pops and skips when the gas is mashed. I drove up the road and same thing. Any sugestions?

Last edited by dixiepaxton; 01-14-2013 at 08:09 AM.
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#26 (permalink) Old 01-14-2013, 09:54 AM
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Any new codes?
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#27 (permalink) Old 01-15-2013, 08:54 AM
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no codes show up.
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#28 (permalink) Old 01-15-2013, 11:04 AM
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As much as I hate to say it and as much as you don't want to hear it double check the timing now that it is running. Verify the timing marks on all of the cam pulleys and crank. If they are all correct then you need to move on to ignition or fuel. If it idles with a bump I would still guess timing issues.
Also check the crankshaft sensor wheel to see if it is straight and not hitting.

It is very hard to diagnose long distance. I understand it is very easy for us to say "check it" again. We are not the ones who have to do the work but we have all "been there, done that" so we know what your going through.
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#29 (permalink) Old 01-15-2013, 09:43 PM
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Default Timing

I'm not sure if this will help you or not. The last time I changed my timing belt the little metal flywheel that sits on the crank and runs inside the crank sensor got out of position. The little flywheel is attached to the back of the crank sprocket by two roll pins. You may want to check and make sure it's not off. A big pain in the a$$!
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#30 (permalink) Old 01-15-2013, 10:37 PM
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Quote:
Originally Posted by nstoolman1 View Post
Also check the crankshaft sensor wheel to see if it is straight and not hitting.
Tim. I said the same thing only yours came out a little clearer. Thanks
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