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MikeD
07-30-2002, 08:53 AM
I have a knocking sound coming from the top front part of my engine. It's hard to tell but it seems to be coming from around where the cam gears would be. It gets ALOT louder as the rpm's go up.
Are Timing chain tensioner or guide failures common on this engine? The engine only has 24000 miles on it.

thanks

cobrabitn
07-30-2002, 10:56 AM
Sounds like a tensioner to me. Can you tell if the chain slaps the covers or not?

MikeD
07-30-2002, 12:42 PM
Well, when I looked at it this morning it seems to be coming from the belt tensioner not the chain tensioner.
What could be causing a rattling or knocking sound in the belt tensioner?

cobrabitn
07-30-2002, 02:11 PM
Bad spring, bad pulley. Do you have underdrives and are they torqued down? If so, check them and see if they came loose. You don't want to see a pulley flying off the crank,.....ughh!:eek:

MikeD
07-30-2002, 06:28 PM
No underdrives. I'm going to pull the tensioner off tonight and give it the once over. I'll let you know what I find. Thanks for the help Tony.

cobrabitn
07-30-2002, 07:15 PM
Okay! Let me know when you find out so I can beware on my 99. :thumbsup:

MikeD
08-07-2002, 10:41 AM
After replacing the Bearings on the tensioner and the idler pulleys the noise was still there.
I went ahead and bought the tensioner. $70 even with my 25% discount. Problem solved. It turned out to be the shaft that the tensioner bearing goes on was worn.

cobrabitn
08-07-2002, 10:54 AM
Cool.... where did you get the 25% discount from?? McCarville Ford?

MikeD
08-08-2002, 10:00 PM
I got the discount through my job. Our fleet mechanic deals with a local Ford parts distribution center.