timing chain tension
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timing chain tension
Ok. I know you guys dont want to read another post about 4.6/5.4 engine noise but too bad! Ive gotta do something to quiet down my 00 eddie at start-up. I know it could be piston slap and would warrant replacement of the motor(or live with it), but Id like to check the tension on the timing chain first as some of you have stated this was the cause of your noise. How difficult of a job is it to get the covers off and what do I look for once I get there? Ive torn into my share of pushrod engines but this will be my first mod. engine.
2000 eddie 5.4 w/ 71k miles
2000 eddie 5.4 w/ 71k miles
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Joined: Dec 2001
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From: Louisville,Ky.
Hi and welcome to FTE 
.
I haven't had the covers off of my 5.4 (hopefully, I never will) but the chain tension is done by tensioners that work off of engine oil pressure. The oil pressure pushes the tensioners out to take up slack.
Jimmy
.I haven't had the covers off of my 5.4 (hopefully, I never will) but the chain tension is done by tensioners that work off of engine oil pressure. The oil pressure pushes the tensioners out to take up slack.
Jimmy
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Joined: Oct 2002
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From: Mesa
Re: timing chain tension
Originally posted by slantfin
Ok. I know you guys dont want to read another post about 4.6/5.4 engine noise but too bad! Ive gotta do something to quiet down my 00 eddie at start-up. I know it could be piston slap and would warrant replacement of the motor(or live with it), but Id like to check the tension on the timing chain first as some of you have stated this was the cause of your noise. How difficult of a job is it to get the covers off and what do I look for once I get there? Ive torn into my share of pushrod engines but this will be my first mod. engine.
2000 eddie 5.4 w/ 71k miles
Ok. I know you guys dont want to read another post about 4.6/5.4 engine noise but too bad! Ive gotta do something to quiet down my 00 eddie at start-up. I know it could be piston slap and would warrant replacement of the motor(or live with it), but Id like to check the tension on the timing chain first as some of you have stated this was the cause of your noise. How difficult of a job is it to get the covers off and what do I look for once I get there? Ive torn into my share of pushrod engines but this will be my first mod. engine.
2000 eddie 5.4 w/ 71k miles
there are less intrusive ways to check for engine noise though. you might try getting a stethoscope from a parts store and poke around the timing cover area.
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Joined: Oct 2003
Posts: 27
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From: Minnesota
Chances of your tensioners being loose is remote. Ford did a good job designing this system. As lxman 1 stated this system uses oil pressure to maintain tension on the timing chains. There has been instances of the wear portion of the guides being wore to the point that you get slack on the chains but I have only experianced that in very high mileage motors. The best way to check is with a mechanics stethoscope. Keep in mind that if you decide to pull the front cover off you will have to pull both valve covers also. This is a feat that will take so time and patience.
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