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08-09-2020, 10:40 AM | #1 |
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Join Date: May 2010
Location: Napanee ontario Canada
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79 Granada 6 cyl nengine noise
Rebuilt the engine on 79 granada and still had noise like valve lifters for 15 maybe 30 secs when i start it..Took head off installed all new lifters and still there..Dont sound like bearing chatter and has perfect oil pressure.So could it possibly be a little looseness in rocker arm assembly?? Any thoughts and info appreciated..
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08-09-2020, 12:47 PM | #2 |
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Location: San Antonio, Texas
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Re: 79 Granada 6 cyl nengine noise
I've heard from some owners of the Ford 200 or 250 I6 engines that they can get a leak at exhaust gaskets that can seal with heat between the manifolds or leaks at air injector lines. It might even be something to do with the timing chest area. Things sometimes take a bit longer to get oil after start up. It could even be a fuel pump or one of the accessories on the front of the engine.
Last edited by rotorwrench; 08-09-2020 at 06:07 PM. |
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08-09-2020, 02:25 PM | #3 |
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Re: 79 Granada 6 cyl nengine noise
My exhaust leaks usually take more than 15 - 30 seconds to seal up from the engine heat. I've had both a seal leak and crack at the manifold on my '61 Mercury. Just as a point of reference.
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08-09-2020, 06:13 PM | #4 |
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Re: 79 Granada 6 cyl nengine noise
If the valves are adjusted correctly then Sometimes the lifters need time to pump up. Longer than 20-30 seconds. Sometimes a couple of minutes. They should start to quiet
down. It’s a little unnerving but lately with the lifters we are getting it’s happened a lot. I don’t know who makes them or where, but in the past with Johnson lifters it wasn’t a problem. The new instructions that are in the new lifters also say not to pre lube them like we used to do. Good luck |
08-09-2020, 08:20 PM | #5 |
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Location: SW WA state.
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Re: 79 Granada 6 cyl nengine noise
I had both a 200 and 250 in the '70 Mavericks I owned and neither one had exhaust manifold gaskets. Neither had been removed prior to my removing the heads.
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1956 Ford Fairlane Town Sedan 292 V8 with Ford-o-Matic |
08-09-2020, 10:08 PM | #6 |
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Re: 79 Granada 6 cyl nengine noise
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08-11-2020, 09:33 PM | #7 |
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Re: 79 Granada 6 cyl nengine noise
I had one 302 that would rattle like crazy when cold on one brand of motor oil, and another brand the motor was quiet all the time, even on very cold start up.
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08-15-2020, 08:23 AM | #8 |
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Re: 79 Granada 6 cyl nengine noise
What are you using for a oil filter?
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08-16-2020, 08:21 AM | #9 |
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Location: Napanee ontario Canada
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Re: 79 Granada 6 cyl nengine noise
OUCH Framp48a..Also makes this chatter that sounds like lifters for more like 2 to 3 minutes ..Sorry i stated in my original message 20 t0 30 secs..It is my brothers car and i got the info wrong..Old age hearing problems....
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08-16-2020, 08:22 AM | #10 |
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Join Date: May 2010
Location: Napanee ontario Canada
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Re: 79 Granada 6 cyl nengine noise
Also castrol 10w30 oil
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08-16-2020, 08:35 AM | #11 |
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Location: NE Iowa
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Re: 79 Granada 6 cyl nengine noise
Try a Motorcraft FL1A
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08-17-2020, 02:23 AM | #12 |
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Location: Palmer, Alaska
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Re: 79 Granada 6 cyl nengine noise
get rid of the Fram filter
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