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 > 1997 460 noise?

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cm2785

So Cal

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Posted: 05/15/18 10:01pm Link  |  Quote  |  Print  |  Notify Moderator

Hi guys I have a 1997 F53 with 11k miles on the clock. The thing is like brand new. Now I have ears like a dog and can hear noises many people can’t, infact I really haven’t heard an engine before that didn’t make any noise at all but when I start the motor home up if you are outside or have the side window open you can hear some tapping or knocking while it’s cold. Maybe like a few marbles in a dryer.. when it’s warm it seems to be fine.. keep in mind there is another sound like a hearing sound possibly and we thought it was the alternator because we put the stethoscope on it and could hear the bearing sound when doing it on the AC compressor it was silent. Yet after a new alternator and smog pump later it’s still there and can also be heard from the water pump which is why I believe that noise is from the water pump, which also gets quieter as it warms up.. could anyone have any ideas on what the first noise is? Maybe it’s normal? At 11k I cant see the engine being anywhere near worn out let alone even broken in. I just had Banks headers installed and the oil is fresh T6 5w40.

Thanks guys!

MrWizard

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Posted: 05/15/18 10:36pm Link  |  Quote  |  Print  |  Notify Moderator

the book on my 97 f53 460
recommends 10w-30w

5w-40 might be too thin when cold

also i'm old school, i would not use/run pure synthetic of any weight
blended OK, but not pure


Radiate The Happy
....

Connected using Verizon and AT&T
1997 F53 Bounder 36s


Boxerslave

Vancouver Island BC

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Posted: 05/15/18 11:18pm Link  |  Quote  |  Print  |  Notify Moderator

Tighten your header to cyl head bolts and do it often. Loose bolts will cause a ticking sound when cold and then seal up when warm.(exhaust leak) Dave

ArchHoagland

Clovis, CA, USA

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Posted: 05/15/18 11:27pm Link  |  Quote  |  Print  |  Notify Moderator

I was going to suggest exhaust manifold leak until I saw you just had headers put on it.

Was the noise there before the headers were installed?


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ksg5000

Oregon

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Posted: 05/16/18 05:29am Link  |  Quote  |  Print  |  Notify Moderator

I had the same issue after ruling out everything else I brought it to the local Ford Truck shop and they said it needed a new water pump.


Kevin

garyemunson

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Posted: 05/16/18 06:33am Link  |  Quote  |  Print  |  Notify Moderator

Possible serpentine belt noise? I made the mistake of buying OReilly's brand belt and it would click/chirp when cold. Returned it for the more expensive Gates belt. Noise gone.

Zman300

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Posted: 05/16/18 08:16am Link  |  Quote  |  Print  |  Notify Moderator

Boxerslave wrote:

Tighten your header to cyl head bolts and do it often. Loose bolts will cause a ticking sound when cold and then seal up when warm.(exhaust leak) Dave


ArchHoagland wrote:

I was going to suggest exhaust manifold leak until I saw you just had headers put on it.

Was the noise there before the headers were installed?


X3
My first thought was exhaust manifold leak.


1994 Georgie Boy Swinger 30ft.
Ford 460


cm2785

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Posted: 05/16/18 08:37am Link  |  Quote  |  Print  |  Notify Moderator

ksg5000 wrote:

I had the same issue after ruling out everything else I brought it to the local Ford Truck shop and they said it needed a new water pump.


Hey Kevin,

You had the ticking knocking noise and it was the water pump?

cm2785

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Posted: 05/16/18 08:38am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the replies guys, I believe the sound was still there before headers and the headers were just installed and tightened.

ksg5000

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Posted: 05/16/18 09:44am Link  |  Quote  |  Print  |  Notify Moderator

cm2785 wrote:

ksg5000 wrote:

I had the same issue after ruling out everything else I brought it to the local Ford Truck shop and they said it needed a new water pump.


Hey Kevin,

You had the ticking knocking noise and it was the water pump?


Yep. I used pipe to check sound and ruled out everything but the water pump and belts. I changed the belts and still had the ticking sound so I took it down to Truck shop and they confirmed it was the water pump. My rig is 92 with 7.5 460.

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