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  '64 1/2 to '73 -- The Classic Mustang
  nosiy valve train??

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Author Topic:   nosiy valve train??
ewokeric
Gearhead

Posts: 216
From: woodbridge, va united states
Registered: Mar 2002

posted 10-06-2002 12:56 PM     Click Here to See the Profile for ewokeric   Click Here to Email ewokeric     Edit/Delete Message   Reply w/Quote
Ok guys i took my mustang on it first round trip to the local car show last night. I arrived a little to late but the during the trip it ran well but i noticed and it is not the first time i noticed this. The valves sound like they are tapping(sewing machine). It is a very low level noise and does not seem to affect the way it runs and it does it hot or cold. I removed the valve cover and check to see if a rocker was ususally lose. Correct me if i am wrong but stock 351heads have positive lock rocker bolts. They seemed to be all tight.Also i noticed only one time that i put the car in first gear and heard a knocking noise comming i think from the engine. Has not done it since. Any ideas or just keep a eye on it to see if it gets worse.

Of topic but i pulled 2 of the plugs out and they are running a light gray color is that good cycleders pulled(1,8).

eric

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68 mustang coupe(california special)not real though but looks it(will be nice) 351w/c4
My 68 Coupe
[url=http://mustangsamdmore.50megs.com/ewokeric.html]

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SteveLaRiviere
Administrator

Posts: 43394
From: Saco, Maine
Registered: May 99

posted 10-06-2002 09:16 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
How's the oil pressure? Do you need an oil change?

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'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150

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capri man
Gearhead

Posts: 6495
From: doerun, ga.
Registered: Nov 2000

posted 10-06-2002 09:20 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
does it sound like valves or 1 valve. sometimes an exhaust leak will fool you. good luck

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ewokeric
Gearhead

Posts: 216
From: woodbridge, va united states
Registered: Mar 2002

posted 10-06-2002 09:22 PM     Click Here to See the Profile for ewokeric   Click Here to Email ewokeric     Edit/Delete Message   Reply w/Quote
i have changed the oil and oil filter 2 times since starting it up. I don't know what the actual oil pressure is i just know that when it gets hot the engine when it idles the oil pressure goes to the (L) on the oil pressure gauge. There is no change in the sound with the oil pressure higher or when engine is colder when the pressure is higher. Also i removed the valve covers and there was oil all over the rocker arms as well. I know i should check with a mech gauge just have not had the chance. The oil pressure comes right up when you hit the gas as well

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SteveLaRiviere
Administrator

Posts: 43394
From: Saco, Maine
Registered: May 99

posted 10-06-2002 09:30 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
The positive nut stops of the 351W are most likely not giving you the full lifter preload you need. They weren't designed to be very precise.

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'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150

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ewokeric
Gearhead

Posts: 216
From: woodbridge, va united states
Registered: Mar 2002

posted 10-06-2002 09:38 PM     Click Here to See the Profile for ewokeric   Click Here to Email ewokeric     Edit/Delete Message   Reply w/Quote
So what does that mean exactly that i might get some nosie from them. I guess when i build my motor this winter/spring i should not use them to get the most out of the motor. Is there anyway to check the valve train without removing the head and checking them that way

quote:
Originally posted by SteveLaRiviere:
The positive nut stops of the 351W are most likely not giving you the full lifter preload you need. They weren't designed to be very precise.


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SteveLaRiviere
Administrator

Posts: 43394
From: Saco, Maine
Registered: May 99

posted 10-07-2002 09:08 AM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Sure, you could use a pushrod length checker and fit longer pushrods to get the preload you need.

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'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150

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