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timing check on a 3.0 plymouth voyager
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drrehab
Novice
May 2, 2008, 1:55 AM
Post #1 of 11
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timing check on a 3.0 plymouth voyager
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need help - I changed the cam and crank seals and timing belt. follow the book to the letter checked and rechecked timing marks on cams and crank everything is lined up but it seems like the engine is off just a little. Can timing be checked without tearing covers back off again. Book says nothing to help. A plymouth voyager 1997
(This post was edited by carjunky on Aug 25, 2016, 6:00 PM)
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Double J
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/ Moderator
May 2, 2008, 2:08 AM
Post #2 of 11
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Re: timing check on a 3.0 plymouth voyager
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What exactly do you need help with?
What kind of problem are you experiencing?
Include the year of the vehicle as well.
Thanks
Jim
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drrehab
Novice
May 2, 2008, 2:19 AM
Post #3 of 11
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Re: timing check on a 3.0 plymouth voyager
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I changed the cam and crank seals and timing belt. follow the book to the letter checked and rechecked timing marks on cams and crank everything is lined up but it seems like the engine is off just a little. Can timing be checked without tearing covers back off again. Book says nothing to help. A plymouth voyager 1997
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Double J
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May 2, 2008, 2:46 AM
Post #4 of 11
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Re: timing check on a 3.0 plymouth voyager
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To the best of my knowledge,the covers have to come off to inspect the marks on this engine, if thats what you're referring to.
You stated seems a little off,whats it doing?
BTW...Did you replace the water pump while in there...these lock up and take out the timing belts...
Did you install the belt,crank first,then front cam then rear cam?
After installation,did you turn the crank 2 full revolutions then return it to TDC and recheck all the marks for proper alignment?
Here is a pic...I'm sure you have this.
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Double J
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May 2, 2008, 2:59 AM
Post #5 of 11
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Re: timing check on a 3.0 plymouth voyager
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Just thinking here too..
Did you have the distributor out ?
If so ,you may not have it back in correctly.
Recheck to see where the rotor is pointing to inside the cap.
You may have to pull it and reset it.
The #1 cylinder is on the bank closest to the firewall.
Here is a pic of where the #1 is on the cap.
Just a thought..let me know
Jim
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DanD
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May 2, 2008, 10:17 AM
Post #6 of 11
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Re: timing check on a 3.0 plymouth voyager
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Just to add a note to Jims last post; don’t be fooled when checking ignition rotor position for #1 TDC.
The external terminals and the internal terminals of a 3Lt distributor cap are not directly in line with each other.
If you look inside the cap, you’ll see what I mean; #1 in Jim’s picture externally is at 12 o’clock; internally the electrode will be somewhere in-between #’s 2&6. Why they offset them like this, I’m not sure; probably has something to do with stopping ignition cross firing, inside the cap?
Dan.
Canadian "EH"
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drrehab
Novice
May 2, 2008, 1:57 PM
Post #7 of 11
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Re: timing check on a 3.0 plymouth voyager
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Yes i had the distributor out and had to readjust where rotor was i'm going to recheck that again. I also found a plug on the rear cam cover so i can look inside to marks. One more question on the crank pulley there are four notches which on is tdc for #1 I used the distributor is set tdc before doing work because none of the notches seemed to line up with the 0 mark. like i said before i made sure sure all internal marks were lined up before reinstalling covers. Can I use a timing light on this system?
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Double J
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May 2, 2008, 3:21 PM
Post #8 of 11
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Re: timing check on a 3.0 plymouth voyager
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There should be a notch on the edge of the crankshaft pulley,align that with the 0 degree mark on the timing cover.
Yes,you can use a timing light to set the base timing.
I know on earlier ones ,you had to disconnect the coolant sensor (by the thermostat housing) first to set the timing.
Not 100 % sure on the 97...I know pre OBD2 you did..check with you repair manual...same for the timing specs..it should be on the underhood label..Guessing 12 degrees BTDC....
A code will set for the coolant sensor,you can disconnect the battery to erase the code .
Check with your manual for THIS year to verify procedures first.
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drrehab
Novice
May 2, 2008, 6:56 PM
Post #9 of 11
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Re: timing check on a 3.0 plymouth voyager
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thanks for your help. seems like we are on the same page with our thoughts. I know about the notch on the pulley but for some reason there are four on my pully set apart equally and not one is painted to represent tdc. I have done differant motor jobs before and always had good results but for some reason this one is just being stubborn.
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DanD
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May 3, 2008, 3:51 AM
Post #10 of 11
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Re: timing check on a 3.0 plymouth voyager
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95 was the last year they used the distributor to set/adjust ignition timing.
The distributor for 97 is used solely as a rotary switch and camshaft sensor housing; all timing is controlled by the PCM.
All I‘ve been able to find for the 97 about setting distributor position, is too mark distributor housing and rotor positions before removal; too use these marks as reference points for reassembly.
There’s nothing that I have about adjusting or setting the distributor, if the position was not marked before removal?
So I’m assuming that if the distributor’s rotor is pointing as close as possible to #1 of the cap with engine at TDC #1 you’re done?
If you’re unsure of the TDC mark; it isn’t that hard to remove the lower/crankshaft pulley and check the crank gear mark is it?
I couldn’t find anything as to what the four marks on the pulley are but once you confirm that the crankshaft is at TDC by the crank gear; you could make your own mark on the pulley and timing cover, for future reference.
Hopefully I haven’t added to the confusion?
Dan.
Canadian "EH"
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drrehab
Novice
May 6, 2008, 4:22 AM
Post #11 of 11
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Re: timing check on a 3.0 plymouth voyager
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To all who helped thank you. The van is running and all timing marks were lined up to the t so i'm assuming there may be a vacuum leak some wheres or a bad wire that intermittingly shorts. I changed the cap and rotor and that made a difference so now i'm getting plugs and wires. Again thank you. Like a mechcanic freind of mine said,"with all the miles it is what it is"
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