Did I collapse a lifter?

Hozer 88GTConv · 03-20-2004, 03:46 PM

After several runs today, I heard a loud tapping from the passenger side and am now taking the valve covers off to see what the hell happened.

The motor has been running very strong after a top-end rebuild last week.

If I can move the pushrod up and down with a few thousandths, should I just tighten the adjusting nut 1/8th turn and see if it was just loose?

exgmguy · 03-20-2004, 05:52 PM

Maybe you did not have the rocker locked down properly and it loosened up? If it definitely sounds like a rocker arm, then I would readjust them all to be safe.
If you keep getting ticking after valve adjustments you might have a wasted guide. That will usually, but not all the time show oil on the plug.

Hozer 88GTConv · 03-20-2004, 07:03 PM

You were absolutely correct.
Number one intake rocker arm was almost totally off.
I couldn't believe it. I checked all of them on the passenger side and the luck nuts were tight.
Hmm.
I checked the valves three complete times before re-installing the intake manifold.
I am wondering now since I only tightened the rocker nut 1/8-1/4 turn and then tightened the lock nut that they might back off.
Damn.

tmoss · 03-21-2004, 08:52 AM

Here s what I do - take the rocker down to the push rod and go an 1/8 turn, set the lock and take the nut down another 1/8 turn - sets up the lock real nice and tight.

Hozer 88GTConv · 03-23-2004, 09:36 AM

After readjusting the number one intake valve, I still hear a "little" tapping. Only at certain times though, so I am just going to go with it and see if it stays the same.
I can only hear it in the car, not even outside with the hood up.
strange...

420nitro · 03-23-2004, 10:18 AM

Quote:

Originally posted by Hozer 88GTConv
After readjusting the number one intake valve, I still hear a "little" tapping. Only at certain times though, so I am just going to go with it and see if it stays the same.
I can only hear it in the car, not even outside with the hood up.
strange...

The bad part is your going to hear now no matter what! Even if it aint there! It's called paranoia! It's sucks don't it!

Just drive it and turn the radio up.

Hozer 88GTConv · 03-23-2004, 11:23 AM

When I start hearing tapping rocker arms in my dreams, then it may be time to talk to a professional....

420nitro · 03-23-2004, 11:36 AM

Quote:

Originally posted by Hozer 88GTConv
When I start hearing tapping rocker arms in my dreams, then it may be time to talk to a professional....

I know this good counselor,... he help me with this weird rear-end noises that I hear in my dreams.

03-20-2004, 03:46 PM	#1
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Did I collapse a lifter? After several runs today, I heard a loud tapping from the passenger side and am now taking the valve covers off to see what the hell happened. The motor has been running very strong after a top-end rebuild last week. If I can move the pushrod up and down with a few thousandths, should I just tighten the adjusting nut 1/8th turn and see if it was just loose? __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

03-20-2004, 05:52 PM	#2
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	Maybe you did not have the rocker locked down properly and it loosened up? If it definitely sounds like a rocker arm, then I would readjust them all to be safe. If you keep getting ticking after valve adjustments you might have a wasted guide. That will usually, but not all the time show oil on the plug. __________________ 1988 Mustang GT stock bottom 302, C4 10.9 @ 128 with 8 psi of Novi 1000 boost!----STOLEN 1989 Mustang notchback Warmed up 306 with a Procharger.

03-20-2004, 07:03 PM	#3
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Number 1... You were absolutely correct. Number one intake rocker arm was almost totally off. I couldn't believe it. I checked all of them on the passenger side and the luck nuts were tight. Hmm. I checked the valves three complete times before re-installing the intake manifold. I am wondering now since I only tightened the rocker nut 1/8-1/4 turn and then tightened the lock nut that they might back off. Damn. __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

03-21-2004, 08:52 AM	#4
tmoss Registered Member Join Date: Mar 2003 Location: Saint Louis, MO Posts: 634	Here s what I do - take the rocker down to the push rod and go an 1/8 turn, set the lock and take the nut down another 1/8 turn - sets up the lock real nice and tight. __________________ Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/

03-23-2004, 09:36 AM	#5
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	mild valve train noise... After readjusting the number one intake valve, I still hear a "little" tapping. Only at certain times though, so I am just going to go with it and see if it stays the same. I can only hear it in the car, not even outside with the hood up. strange... __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

03-23-2004, 11:23 AM	#7
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	paranoia... When I start hearing tapping rocker arms in my dreams, then it may be time to talk to a professional.... __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

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