The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-04-2007, 07:46 PM   #1
1968GMC
love my truck
 
1968GMC's Avatar
 
Join Date: May 2001
Location: aylmer QC
Posts: 648
noisy lifter

I have a bad lifter and I was wondering if i can just change the one or do l have to change them all. Also someone told me l should change all the push rods, is that necessary?
M
1968GMC is offline   Reply With Quote
Old 08-04-2007, 07:50 PM   #2
cdowns
Senior Member
 
cdowns's Avatar
 
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
Re: noisy lifter

before takin apart or changing any thing add a pint of marvelmystery oil to your crankcase
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane

MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF

DONT BELIEVE EVERYTHING YOU THINK

TAKE MY ADVISE;I DON'T USE IT ANYWAY
cdowns is offline   Reply With Quote
Old 08-04-2007, 08:35 PM   #3
68gmsee
Active Member
 
68gmsee's Avatar
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: noisy lifter

If the additive doesn't break it loose, and you're sure that the cause may be a collapsed lifter, I see no reason why you can't replace just the one. I've done that before...

On the other hand, if your engine is old and your lifters are gummed up, then I agree that you should go with the set. You'll have the intake off anyway. As far as the rods, the only time I replaced them is when one of them was bent. It's really your call...
68gmsee is offline   Reply With Quote
Old 08-04-2007, 09:08 PM   #4
Thealien
Senior Member
 
Thealien's Avatar
 
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,126
Re: noisy lifter

Marvel mystery oil didn't help mine. Don't have the time or money to tear into it right now (trying to fix 6 other things right now). I am just going to adjust it like a solid and quiet it down a bit. A good mechanic I use recomended this to hold me over.
Thealien is offline   Reply With Quote
Old 08-04-2007, 10:31 PM   #5
Frizzle Fry
Registered User
 
Frizzle Fry's Avatar
 
Join Date: Aug 2005
Location: Hillsboro Oregon
Posts: 6,449
Re: noisy lifter

I had this problem. Replaced all the lifters and it still made noise. Turned out to be a scored lifter bore The fix was to build a 476 for it

Last edited by Frizzle Fry; 08-04-2007 at 10:32 PM.
Frizzle Fry is offline   Reply With Quote
Old 08-04-2007, 10:36 PM   #6
1968GMC
love my truck
 
1968GMC's Avatar
 
Join Date: May 2001
Location: aylmer QC
Posts: 648
Re: noisy lifter

l replaced the cam and lifters 4 years ago with a RV cam from edelbrock.
1968GMC is offline   Reply With Quote
Old 08-05-2007, 07:10 AM   #7
dave3156
Registered User
 
Join Date: Mar 2004
Location: St. Louis, MO
Posts: 336
Re: noisy lifter

I also had a collasped lifter. Replaced the one lifter and everything was fine. Don't run it too long collasped.

Last edited by dave3156; 08-05-2007 at 07:11 AM.
dave3156 is offline   Reply With Quote
Old 08-05-2007, 09:39 AM   #8
Billla
Account Suspended
 
Billla's Avatar
 
Join Date: Sep 2005
Location: Monroe, WA
Posts: 3,815
Re: noisy lifter

New lifter on a used cam can be a bad combo - the more agressive finish on the new cam can flatten a cam lobe. Not an absolute no - but it's a risk.

Be SURE it's a bad lifter and not a flat lobe or bent pushrod.

I'm not RECOMMENDING this, but the times I have had to replace a lifter, I've chucked it up in a lathe and taken a little emery cloth soaked in solvent to the foot LIGHTLY just to take it down a notch.
Billla is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:42 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com