valve tapping

cubanlorenzo · #1 12-18-2004, 12:54 AM

i had my valve lifters replaced a while back. ever since then i have had the annoying and most dredful valve tap. should i take it to my mechanic and have them re adjust the valves? or am i stuck with this?

BlazerLT · #2 12-18-2004, 03:28 AM

Is it constantly happening or only on startup?

cubanlorenzo · #3 12-18-2004, 11:21 AM

constantly. it is loud the 5 seconds after start up then gets quieter..

gbic1 · #4 12-18-2004, 04:45 PM

How often do you change your oil? What weight oil do you use? Generaly when an engine needs lifters it is due to lack of oil changes. Any debris in engine will block oil passages and cause this to happen. If this was the problem than it will take many oil changes with HD oil to clear this up.

BlazerLT · #5 12-18-2004, 10:57 PM

Quote:

Originally Posted by cubanlorenzo

constantly. it is loud the 5 seconds after start up then gets quieter..

What oil filter are you using?

cubanlorenzo · #6 12-19-2004, 03:52 PM

i change my oil every 2500 miles. my lifters went on me like 6 months ago due to overheating. i wasnt driving, my retarded brother took my car for the day. i use 10W-30 with a AC Delco filter. i used to use a fram

BlazerLT · #7 12-19-2004, 08:45 PM

First of all, don't change your oil every 2500 miles.

HUGE waste of money and oil.

Change it at 5000miles.

Other than that, on your next change, run an engine flush treatment through it to clear up any restrictions.

SlammedClipse · #8 12-20-2004, 01:14 AM

and maybe try a purolator filter, stay away from fram, not sure about ac delco but purolator seems to be best...

rlith · #9 12-20-2004, 06:40 AM

Try relashing it... It may be nothing more than a loose rocker. Re-lash it and see if it quiets down. If it doesn't you could have a bad valve seal that's causing the valve to stick open (until the piston taps it shut)

gbic1 · #10 12-20-2004, 09:49 AM

You are kidding right? Piston hitting the valve and shutting it? If the piston it the valve 99% of the time it will bend it.

BlazerLT · #11 12-20-2004, 01:50 PM

I think there is just some gunk in the oil system that needs to be cleaned out.

Engine flush treatment works wonders and really quietened mine on startup.

It is -31c here yerterday and not even a click from the engine compartment.

Mikado14 · #12 12-20-2004, 06:38 PM

Quote:

Originally Posted by BlazerLT

I think there is just some gunk in the oil system that needs to be cleaned out.

Engine flush treatment works wonders and really quietened mine on startup.

It is -31c here yerterday and not even a click from the engine compartment.

HOW COLD? And I thought 4f here on the farm this morning was cold.......

Mikado14 · #13 12-20-2004, 06:40 PM

Quote:

Originally Posted by gbic1

You are kidding right? Piston hitting the valve and shutting it? If the piston it the valve 99% of the time it will bend it.

He has to be kidding. A bad valve seal should have no effect on valve travel or causing it to stick open. However, he could be right on readjusting the lash.

cubanlorenzo · #14 12-20-2004, 07:31 PM

which engine flush treatment works best??? ill try doing this tomorrow, being that it is 2 degrees right now. not something i want to be in working on my car.

BlazerLT · #15 12-20-2004, 07:44 PM

oh, two degrees there, you need to switch to 5w30 for starters.

Engine flush I would use would be the one from the Gunk brand of products.

Just floow the instructions on the bottle and add it to warm oil and idle it for 30 minutes.

Also, I would swap a new filter on during the treatment so it will catch all the sludge being removed from the system.

Then drain the oil completely and and drain thoroughly and install another new oil filter and 5w30 oil.

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