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Hi Eric,
First of all thank you for being such a cool dude!
I appreciate your input. I still haven’t ruled out the lifters as being the cause, but it surely is. I haven’t had enough time to dig into it.
I was told that since the Windstar uses roller type lifters, they can be replaced independently from the camshaft and that I should have no problems on replacing either only the bad ones or all of them.
This engine overheated twice, the first time we replaced the lifters but the second we didn’t. Maybe this is the cause of the original damage.
What do you think?
Oscar.
Hi Eric,
First of all thank you for being such a cool dude!
I appreciate your input. I still haven’t ruled out the lifters as being the cause, but it surely is. I haven’t had enough time to dig into it.
I was told that since the Windstar uses roller type lifters, they can be replaced independently from the camshaft and that I should have no problems on replacing either only the bad ones or all of them.
This engine overheated twice, the first time we replaced the lifters but the second we didn’t. Maybe this is the cause of the original damage.
What do you think?
Oscar.
[quote=”ridinred24″ post=51813]I think narrowing it down via a heavier oil would be a great place to start, then you will know whether its valve train or timing chain. Good luck![/quote]
Thank you. I wonder if you could please explain how would that rule it out, I’m still no very good at this kind of problems and would like to know. I would think that switching to a heavier oil would increase pressure in the entire system which would also pump the tensioner on the chain some more, also masking the slack on the chain.
I must say that we used to use 15w40 for this engine and never had any tapping noises; it all started when I switched to 5w30 as the manual states. Would that mean anything to you?
Oscar.
[quote=”ridinred24″ post=51813]I think narrowing it down via a heavier oil would be a great place to start, then you will know whether its valve train or timing chain. Good luck![/quote]
Thank you. I wonder if you could please explain how would that rule it out, I’m still no very good at this kind of problems and would like to know. I would think that switching to a heavier oil would increase pressure in the entire system which would also pump the tensioner on the chain some more, also masking the slack on the chain.
I must say that we used to use 15w40 for this engine and never had any tapping noises; it all started when I switched to 5w30 as the manual states. Would that mean anything to you?
Oscar.
Thank you guys,
Hydraulic lifters cannot be adjusted, but you can adjust some slack if you have adjustable rocker arms.
I would use other oil, but that will only mask the problem rather than fixing it. The main concern is that I’m still not sure if it’s a valvetrain problem OR something to do with the timing chain and/or tensioner. If it’s the second, nothing will fix/mask it and could lead to potential engine damage.
I will take a look at it within the next days. So far two people have agreed with it being a valvetrain problem; one more has said it’s a problem with the timing tensioner instead.
Oscar.
Thank you guys,
Hydraulic lifters cannot be adjusted, but you can adjust some slack if you have adjustable rocker arms.
I would use other oil, but that will only mask the problem rather than fixing it. The main concern is that I’m still not sure if it’s a valvetrain problem OR something to do with the timing chain and/or tensioner. If it’s the second, nothing will fix/mask it and could lead to potential engine damage.
I will take a look at it within the next days. So far two people have agreed with it being a valvetrain problem; one more has said it’s a problem with the timing tensioner instead.
Oscar.
Thanks again!
These engines have hydraulic lifters, would a valve adjustment still apply to it? I’m sorry if it’s a dumb question, I’m learning on the subject.
I would like to say that I’m sorry as I just noticed that the “videos” I supposedly posted in my first post will take you to the same video, I hadn’t noticed it. I blame chrome on this lol, I could have noticed sooner if I had seen the video thumbnails.
THESE are the correct links to all the videos:
VIDEO 1
Noise at hot idle
http://www.youtube.com/watch?v=19EaaVheFfA
VIDEO 2
Noise seems to be gone after shutting engine off for a couple of minutes
http://www.youtube.com/watch?v=05A3M9MJNHo
VIDEO 3
Cold start engine
http://www.youtube.com/watch?v=xSRuvhdgV2Q
VIDEO 4
Warm engine
http://www.youtube.com/watch?v=9tkMvW-HlbM
VIDEO 5
Serpentine belt removed
http://www.youtube.com/watch?v=5nuxgZCKFvUOscar.
Thanks again!
These engines have hydraulic lifters, would a valve adjustment still apply to it? I’m sorry if it’s a dumb question, I’m learning on the subject.
I would like to say that I’m sorry as I just noticed that the “videos” I supposedly posted in my first post will take you to the same video, I hadn’t noticed it. I blame chrome on this lol, I could have noticed sooner if I had seen the video thumbnails.
THESE are the correct links to all the videos:
VIDEO 1
Noise at hot idleVIDEO 2
Noise seems to be gone after shutting engine off for a couple of minutesVIDEO 3
Cold start engineVIDEO 4
Warm engineVIDEO 5
Serpentine belt removedOscar.
[quote=”Wrench Turner” post=51220]
For some reason I have problems viewing embedded videos from youtube in this forum.
Same here when using Chrome.. I actually have to load some of these pages in Firefox in order to view youtube embedded videos.[/quote]
Thank you, I used “Safari” and all videos showed up fine. I was using Chrome, I find it weird that videos are blocked in it…
[quote=”Plasmide56″ post=51216]At idle the engine make less noise and the valve more noise then at no too hight RPM.
[/quote]Thank you Plasmide56, I finally was able to see all of the videos in the link that you posted and the noise surely seems to be the same but, in such videos, the noise does not seems to go away when RPM’s go up; mine does and I wonder if that would make any difference.
I will remove the valve covers and take a look at it. After watching all those videos I still don’t know what should I’ve looking for in order to find out which are the ones in bad condition or if I should be replacing them all, or even if they are the source of the problem.
You mentioned that there seem to be 2 bad valve springs, I would be interested in knowing how did you get to that conclusion.
***********
I’m sorry if I’m asking too many questions, this is the first time that something like this happens to me and I’m trying to gather as much information as I can before starting to work on it.
Thank you very much for all your input.
Oscar.
[quote=”Wrench Turner” post=51220]
For some reason I have problems viewing embedded videos from youtube in this forum.
Same here when using Chrome.. I actually have to load some of these pages in Firefox in order to view youtube embedded videos.[/quote]
Thank you, I used “Safari” and all videos showed up fine. I was using Chrome, I find it weird that videos are blocked in it…
[quote=”Plasmide56″ post=51216]At idle the engine make less noise and the valve more noise then at no too hight RPM.
[/quote]Thank you Plasmide56, I finally was able to see all of the videos in the link that you posted and the noise surely seems to be the same but, in such videos, the noise does not seems to go away when RPM’s go up; mine does and I wonder if that would make any difference.
I will remove the valve covers and take a look at it. After watching all those videos I still don’t know what should I’ve looking for in order to find out which are the ones in bad condition or if I should be replacing them all, or even if they are the source of the problem.
You mentioned that there seem to be 2 bad valve springs, I would be interested in knowing how did you get to that conclusion.
***********
I’m sorry if I’m asking too many questions, this is the first time that something like this happens to me and I’m trying to gather as much information as I can before starting to work on it.
Thank you very much for all your input.
Oscar.
Thanks again, I still can’t directly see them but managed to get the links from the source code.
I checked the videos and it actually seems to be the same noise. I can’t tell you how happy I feel about it. Dealing with upper engine components is way easier than removing a front timing cover, I really hope that’s only the problem.
Will I be able to find out with a compression tester? I have one of those.
My other question is why would the noise be present only at warm idle and go away with higher RPM’s? Was it just a coincidence or the switching on oil weight had anything to do with it?.
Oscar.
Thanks again, I still can’t directly see them but managed to get the links from the source code.
I checked the videos and it actually seems to be the same noise. I can’t tell you how happy I feel about it. Dealing with upper engine components is way easier than removing a front timing cover, I really hope that’s only the problem.
Will I be able to find out with a compression tester? I have one of those.
My other question is why would the noise be present only at warm idle and go away with higher RPM’s? Was it just a coincidence or the switching on oil weight had anything to do with it?.
Oscar.
Hi! Thank you very much for your reply.
For some reason I have problems viewing embedded videos from youtube in this forum. Everything I get is a white box, I don’t know what’s wrong. I can’t see any of the videos mentioned in the post you posted. I wonder if you could please post the direct links to such videos.
Do you think it could be a bad valve spring? That would be great news. How could I find out which one is the bad one, only with the stethoscope or by removing the valve cover?.
I tried probing on the valve covers with the stethoscope but noticed no change. That’s why I didn’t think of it before but since I have not much experience with this kind of problems, I could definitely be wrong.
I friend took a look at the video and said he can hear a rattling noise even at cold idle.
In my first post I FORGOT TO SAY that the engine has around 88k miles and has been OVERHEATED TWICE. Both times the heads were resurfaced and engine was rebuilt but I can’t seem to remember replacing the valve springs so you might be right about all the stress and heat treatment that these parts have.
I appreciate your help.
Oscar.
Hi! Thank you very much for your reply.
For some reason I have problems viewing embedded videos from youtube in this forum. Everything I get is a white box, I don’t know what’s wrong. I can’t see any of the videos mentioned in the post you posted. I wonder if you could please post the direct links to such videos.
Do you think it could be a bad valve spring? That would be great news. How could I find out which one is the bad one, only with the stethoscope or by removing the valve cover?.
I tried probing on the valve covers with the stethoscope but noticed no change. That’s why I didn’t think of it before but since I have not much experience with this kind of problems, I could definitely be wrong.
I friend took a look at the video and said he can hear a rattling noise even at cold idle.
In my first post I FORGOT TO SAY that the engine has around 88k miles and has been OVERHEATED TWICE. Both times the heads were resurfaced and engine was rebuilt but I can’t seem to remember replacing the valve springs so you might be right about all the stress and heat treatment that these parts have.
I appreciate your help.
Oscar.
I don’t know what could be causing your problem but I do sugget that if you have one of those clicking type radiator/coolant reservoir caps THROW IT AWAY! They are junk and most of the time don’t hold any pressure, get a $5 replacement from any autoparts store.
As a side note, that could also cause a loss of coolant.
Oscar.