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Joined: May 2002
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OP
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the motor started making a bad rattling noise that the dealer thought was a bad lower end. The noise is now a metal knocking noise the seems to come from the top. The rattling noise is still there. I have a 3L on the way to replace what was first thought to be a bad lower end. Do I need to change the cams now?
98 SE Sport resonators removed, cone filter, custom catback, Intrax springs, Comp Euro T/A. 3.0L here waiting to go in. Just bent ALL the intake valves.
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Joined: Mar 2002
Posts: 154
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Is the noise coming from the top front, by the power steering pump? If it is, it is probably the cam chains/tensioners. One of the tensioners went out on my 2.5L, and the chain jumped teeth on the sprocket. That is when I found out that the duratec is a "interference" engine. Anybody need a good shortblock? Cheap!
95 mystique LS, High Output Cougar S (SVT) 2.5L engine & MTX75
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Joined: Sep 2000
Posts: 5,805
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Oil pressure?...ok or down?
V6 MTX
'Don't p**s up my back then tell me it's raining!!!"
'Its only nuts & bolts!'
'If I build it,fix it,upgrade it or modify it...MAYBE they will come....!
Haines Motor Sports Inc,
Dealer for 'Quaife America' & 'Autotech Sport Tuning'
SOLE USA Dealer for the American Axle 'AUSSIE BAR'...
Get a Turbo for you Zetec from HMS Inc...by 'The Demon' ...www.DemonDynamics.co.uk
..don't talk about it DO IT !!!
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Joined: May 2002
Posts: 5
Junior Member
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OP
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Joined: May 2002
Posts: 5 |
the knock sounds loadest from the top front. The oil was just changed and the noise got worse. The motor only has 40k miles on it and the problem started at about 30k. As for the oil pressure I haven't checked it yet but I will today. The oil light doesn't come on if that helps. If it is the cam tensioner making the noise will that wipe out the cams?
98 SE Sport resonators removed, cone filter, custom catback, Intrax springs, Comp Euro T/A. 3.0L here waiting to go in. Just bent ALL the intake valves.
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Joined: May 2000
Posts: 1,355
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Posts: 1,355 |
Is the noise there at idle? Do you hear the noise below 3000rpm?
Simon W. Las Vegas.
96 SE V6 MTX Tereador Red (1st Blown Engine, better be the last!)
1999 SVT Engine
SVT Exhaust w/custom DTM Tips and optimized Y-pipe and no Res (thanks to Po-Jay!). LSD Quaife(thanks to Terry!), SCA CAI w/KKM, Grizzly clutch, FMS 9mm wires, Airknights custom short shifter.
"You can only get more rice at one time by ordering Chinese" - Davo7SVT
"it's only nuts and bolts" - Terry Haines
"Drive it like you stole it" - Me!
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Joined: May 2002
Posts: 5
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OP
Junior Member
Joined: May 2002
Posts: 5 |
the noise is there at idle and above 3000 rpm. It goes away sometimes if I get on the gas real hard.
98 SE Sport resonators removed, cone filter, custom catback, Intrax springs, Comp Euro T/A. 3.0L here waiting to go in. Just bent ALL the intake valves.
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Joined: Sep 2000
Posts: 5,805
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If you have done 10k with it doubt if its bottom end,more like a lash adjuster or finger follower.........
V6 MTX
'Don't p**s up my back then tell me it's raining!!!"
'Its only nuts & bolts!'
'If I build it,fix it,upgrade it or modify it...MAYBE they will come....!
Haines Motor Sports Inc,
Dealer for 'Quaife America' & 'Autotech Sport Tuning'
SOLE USA Dealer for the American Axle 'AUSSIE BAR'...
Get a Turbo for you Zetec from HMS Inc...by 'The Demon' ...www.DemonDynamics.co.uk
..don't talk about it DO IT !!!
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Joined: May 2002
Posts: 5
Junior Member
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OP
Junior Member
Joined: May 2002
Posts: 5 |
The lash adjuster/ Finger follower sounds bad. If that is the problem will it cause damage to any of the components on the top end? I have a 3L on the way and want to use 3L valves should I just replace all the parts on the heads with new stuff or do I need to just have it adjusted?
98 SE Sport resonators removed, cone filter, custom catback, Intrax springs, Comp Euro T/A. 3.0L here waiting to go in. Just bent ALL the intake valves.
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Joined: Sep 2000
Posts: 5,805
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If its lash adjuster/follower it may damage the cams due to the slack and impact on the lobes..I suggest you pull the upper mnifold ,pop off the cam covers & inspect the cam lobes, followers(for 'flat spots' and damged rollers) you can check any bad lash adjusters with a feeler gage....
V6 MTX
'Don't p**s up my back then tell me it's raining!!!"
'Its only nuts & bolts!'
'If I build it,fix it,upgrade it or modify it...MAYBE they will come....!
Haines Motor Sports Inc,
Dealer for 'Quaife America' & 'Autotech Sport Tuning'
SOLE USA Dealer for the American Axle 'AUSSIE BAR'...
Get a Turbo for you Zetec from HMS Inc...by 'The Demon' ...www.DemonDynamics.co.uk
..don't talk about it DO IT !!!
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