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View Full Version : Another case of timing chains, guides etc?



SteelQualityMan
04-12-2017, 02:33 PM
There are a lot of threads on this site about timing chain noise, wear, etc. and I didn't want to hijack anyone else's thread. I had my windows open yesterday because the weather was so nice, and as I pulled into a parking space, I heard an unusual sound from the engine. You know how we get after driving a car for such a long time that you know every sound it makes, so anything different really stands out.

What I heard was coming from the front of the driver's side cam cover or valve cover. It was somewhere between a 'ting' and a 'clack', not very loud, and not continuous. Having heard of disasters because of cam chain problems, I shut the car down immediately. This morning I decided to make a brief video to post so I propped the phone up under the hood, crossed my fingers and started the car. Of course, because I wanted to make a video, there were no unusual sounds at all within 7 or 8 minutes of a cold start.. I can't figure out how to insert a video file in a post, but I will if someone would like to send me directions. Unfortunately, all you will hear are the normal sounds of a Marauder with a K&N intake cold starting and idling.

My problem now is: do I drive it 185 miles back home tomorrow as I planned to do, do I have it towed to the Ford stealership, or something in between. There is a decent Ford place here in Columbus (OH) that has done work on the car before now, but I don't know the one in my small home town of Warsaw, Indiana. If I tell the dealer to preemptively replace the chains and guides, it will end up costing me over a grand I'm sure. I have a pretty well equipped garage at home, but there is nothing I can do here in a hotel parking lot. Triple-A will tow me 100 miles max so that's not an option. Suggestions would be appreciated.

Background: the car has about 190,000 miles, I have owned it since 2007, and it has always been well maintained. Oil pressure is very good, both at idle and at speed (on a real oil pressure gauge), running Royal Purple 5W20 and a Royal Purple filter. In the last month I have driven the car to and from the New Jersey Shores area, a distance of about 750 miles each way, with no problems.

Turbov6Bryan
04-12-2017, 02:48 PM
I would say the noise went away, you restarted it no more noise, it's not the guide, it's something else. Start up noise would be oring on tensioner

Best way to do a video is use your phone, make a YouTube account and load from phone to YouTube. It only takes minutes to load via wifi

It could be clogged oil squirter in the head, guides, low oil. Rod knock

Then share the link with us so we can view it

If you can't figure out the video, text it to me

573-286-1699

svtguy
04-12-2017, 03:09 PM
Noise can come and go if it is a failing tensioner or a worn guide. My understanding of the tensioner problem is that a failing tensioner can take a little while after start up for it to build up oil pressure and then full tension. During that time, there is slack in the chain that you might hear slapping on guide. ONCE PRESSURE BUILDS UP, THE NOISE MAY GO AWAY TILL PRESSURE DROPS AGAIN. What you might also hear is the worn plastic guide that came detached from the guide arm/body on one end that can cause the slapping sound along with the chain having slack. Also, when the plastic on the guide wears and comes detached, pieces of it can break off and clank around until it falls into the oil pan. This can sound like death but will go away once the plastic finds its resting place in the pan. Then you'll go back to just hearing the regular nasty chain slap. That is unless the plastic gets sucked up into the pick up tube and causes oil starvation and spun bearings. Lots of possibilities. Maybe you get a scope to peek into the oil pan drain and see if there's any plastic pieces laying there. You could also try getting the scope through the oil filler cap to look around at the top side of chain guides.

EDIT: IN CAPS

Turbov6Bryan
04-12-2017, 04:48 PM
Or it can just be normal dohc drive it till it breaks noises

mm svt
04-12-2017, 08:06 PM
At least change the oil

SteelQualityMan
04-12-2017, 08:48 PM
Or it can just be normal dohc drive it till it breaks noises
Well, that is my usual approach. 😎

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